PS5 Cache Clear 2026: Option 6 in 12 Steps, 10 Min

Clearing the cache on a PS5 gets passed around like folk medicine. Any time a console stutters, refuses to open a game, or renders the store as a gray rectangle, someone appears to tell you to clear the cache, as though the machine keeps a jar of bad humours you can periodically drain. Most of that advice is vague, half of it is describing the wrong button, and a surprising amount of it is quietly describing the PlayStation 4. So here is the precise version. It lives in Safe Mode. It is the sixth option on an eight-line menu. It takes about ten minutes end to end, most of which is waiting for beeps. It does not delete your games. And it fixes a narrower set of problems than the internet would have you believe.

This is a tutorial, so we will do the whole thing: what the cache is, what clearing it actually repairs, the exact firmware landscape as of August 2026, the twelve-step procedure with a rationale for every step, the beep timings, the menus you should expect to see, a troubleshooting table, and a complete copy-paste-grade procedure at the end. If you only want the button sequence, skip to the twelve steps. If you want to understand why the button sequence is what it is, start here.

What the PS5 Cache Actually Is

Before you clear something, it helps to know what it is, if only so you can tell when clearing it is pointless. The PS5 cache is not a setting, not a folder you can browse to, and not a single file. It is a managed pool of temporary data the operating system writes to a reserved region of the internal SSD so it does not have to recompute the same work twice.

A scratch pad, not a setting

Every time you launch a game, open a store page, decode a thumbnail for the media gallery, or stage a system update, the console writes intermediate results somewhere fast so the next access is instant. That is the cache. It is the same idea your browser uses when it keeps images from a page you already visited. The design goal is speed, and the mechanism is persistence: a cache that evaporated every reboot would defeat its own purpose, which is exactly why you cannot clear it by simply turning the console off and on again. It is supposed to survive that.

Where it lives, and why you cannot see it

Sony does not expose the PlayStation filesystem to the user. You get a storage menu that shows how many gigabytes games and apps occupy; you do not get a file browser, root access, or any way to point at the cache and delete it by hand. This is deliberate. The cache is a system-managed structure, and the only sanctioned way to purge it is the Safe Mode entry we will get to. There is no Settings toggle, no hidden developer menu, and no third-party app that can do it without booting into Safe Mode first. Anyone selling you one is selling you a placebo.

It survives reboots on purpose

This is the single most common misconception, so it is worth stating plainly: restarting your PS5 from the power menu does not clear the cache. Neither does Rest Mode, and neither does a normal shutdown. The cache is engineered to persist across all of those so that your games load faster on the next boot. To actually flush it you have to enter a special maintenance environment where the normal operating system is not running, and that environment is Safe Mode. Everything else in this guide follows from that one fact.

Does Clearing It Fix Anything?

Yes, but for a specific and unglamorous category of problem. Clearing the cache is a scalpel for transient software faults, not a cure for everything that ails a five-year-old console. The honest framing, which Engadget's step-by-step guide also lands on, is that a cache clear is a short-term remedy that does nothing for hardware degradation.

What it genuinely repairs

Cache-shaped problems have a recognizable smell. A PlayStation Store page that loads as a blank gray panel. A game that hangs on its own splash screen and never reaches the menu. A downloaded update that installed but left the app in a weird half-state. Stutter or menu lag that appeared immediately after a system update and did not exist the day before. And the canonical example: Epic Games officially recommends the Safe Mode cache clear as a fix for Rocket League's 'load failure' error, documented in their Rocket League support article. When a game studio names cache-clearing as the fix for a specific error code, that is your signal that the tool matches the wound.

What it will not touch

It will not fix a fan that screams like a jet on approach. It will not fix thermal throttling from five years of dust in the heatsink. It will not resurrect a failing SSD, repair a corrupted save, improve your frame rate in a demanding game, or make a poorly optimized port run well. These are hardware or software-design problems, and no amount of cache flushing addresses them. If your console is physically degrading, clearing the cache is the equivalent of dusting the dashboard of a car with a blown head gasket.

The honest expectation

Treat the cache clear as the first, cheapest, safest thing you try when a specific app or store function misbehaves, precisely because it costs you nothing: it is free, it needs no PlayStation Plus subscription, and it deletes none of your content. If it works, you saved yourself a support ticket. If it does not, you have lost ten minutes and learned that your problem lives somewhere else. Both outcomes are useful. What is not useful is clearing the cache 'just in case' on a healthy console, or as a ritual after every update, because a working cache is doing its job and flushing it only means your next few loads are slower while it rebuilds.

Prerequisites and Firmware

This is a low-requirement procedure, but it has requirements, and the most common failure is showing up without the one cable that matters. Read this section before you power anything down.

Firmware: know your baseline

The cache-clearing workflow has been stable across the entire 2026 firmware line, but it is worth checking your version first, because a genuinely large share of 'cache' complaints are just a skipped update. You check the version, and separately install updates, from the standard path under Settings, which is a completely different route from the Safe Mode one you will use to clear the cache. The distinction matters: Settings is where you update; Safe Mode is where you maintain.

Settings
  » System
    » System Software
      » System Software Update and Settings

Expected readout (as of 19 Aug 2026):
  System Software Version . . . 26.05-13.60.00
  Update Available  . . . . . . No

If a version is pending, install it BEFORE you
clear anything. Roughly half the "cache" bugs
people chase are a skipped firmware update.

For reference, here is the 2026 cadence, so you can sanity-check whatever your console reports against a real timeline. Sony ships small stability and quality-of-life updates roughly monthly, and the version string follows a YY.0X-major.minor.patch format. The official PlayStation system software information page tracks the current release, and it was still live and being updated as of August 16, 2026.

Notice that these are almost all feature-light releases. That pattern matters for your expectations: if an April update added emoji reactions and nothing else, do not blame it for a performance problem, and do not expect clearing the cache after it to change anything either. If you want the broader context on how the console has evolved across its life, our breakdown of the PlayStation 5 versus the PS4 in 2026 covers why the PS5's storage and maintenance model is a clean break from its predecessor, which is directly relevant to the next point.

Hardware you must have

You need exactly two things: the console, and a USB cable that can carry data. The cable is non-negotiable and it is where people fail. Safe Mode disables Bluetooth, so your DualSense cannot connect wirelessly the way it does on the home screen. You must physically tether it. Use a USB-A-to-USB-C or a USB-C-to-USB-C cable, the same kind you charge the controller with, as long as it is a real data cable and not a charge-only one. A charge-only cable will light up the controller and do nothing else, which produces the single most frustrating moment in this entire process: a Safe Mode screen asking you to press the PS button on a pad that the console cannot hear.

What you do not need

You do not need a PlayStation Plus subscription. You do not need an internet connection for the cache clear itself. You do not need a USB drive, a backup, or any downloaded tool. And crucially, you do not need to back up your saves for a plain cache clear, because it deletes nothing you own. The only reason to think about backups at all is if you intend to go further down the Safe Mode menu into the reset options, which are a different and destructive story we will flag clearly when we get there. This same prerequisite list applies verbatim to the PS5 Pro; if you are on the higher-end model, our PS5 Pro versus PS5 comparison covers what is actually different between the two, and cache handling is not on that list.

Two Things Called 'The Cache'

Here is where most guides quietly mislead you. When people say 'clear the PS5 cache,' they are usually collapsing two distinct operations into one phrase. Both live under the same Safe Mode entry, but they are not the same thing, they do not take the same amount of time, and you should not run the heavy one when you only need the light one.

The system software cache

This is the temporary operating-system data described earlier: staging files, decoded thumbnails, transient state left behind by apps and the store. Clearing it is the light operation. It finishes in roughly one to two minutes, it deletes nothing you installed or saved, and it is the correct choice for the overwhelming majority of cache-shaped problems. When this guide says 'clear the cache,' this is the operation it means. In the menu it is called, without ambiguity, Clear System Software Cache.

The content database

The database is the index the console keeps of everything installed on it: which games exist, how large they are, where their files live, how the library and media gallery are laid out. Over time, especially after crashes, mid-download power losses, or a lot of install-and-delete churn, that index can drift out of sync with reality. Rebuilding it forces the console to scan the entire SSD and construct a fresh index from scratch. This is the heavy operation. It can take from a few minutes to about an hour depending on how full the drive is; on a completely packed 8TB expansion it is an hour-class job. It also does not delete your games or saves, but it is not something you run casually, because you are asking the machine to re-read the whole drive.

Why the distinction matters for you

Because the symptom tells you which one to reach for. A blank store page or an app that will not launch is a system-software-cache problem: run the light one. A game that has vanished from your library, an install that reports the wrong size, or a media gallery that looks scrambled is a database problem: run the rebuild. Running a full database rebuild to fix a blank store page is not harmful, but it is forty-five wasted minutes when a ninety-second cache clear would have done it. The two tables below make the split explicit.

Safe Mode and the 8-Option Menu

Safe Mode is the maintenance environment. It boots a minimal version of the system software with most services switched off, which is exactly why it can safely manipulate the cache and database that the full OS holds open during normal use. You reach it only by holding the physical power button in a specific way; there is no Settings shortcut into it on either the PS5 or, for the record, the PS4. Anyone who tells you the PS4 had a menu path into Safe Mode is misremembering, and anyone who tells you the PS5 does is wrong.

The full menu, in order

As of the 2026 firmware, Safe Mode presents eight numbered options. Sony's own Safe Mode support page lists them, and the one you want is the sixth.

PS5 SAFE MODE
---------------------------------------------
  1  Restart PS5
  2  Change Video Output
  3  Repair Console Storage
  4  Update System Software
  5  Restore Default Settings
  6  Clear Cache and Rebuild Database   « HERE
  7  Reset PS5
  8  Reset PS5 (Reinstall System Software)
---------------------------------------------
Options 7 and 8 ERASE data. Options 1-6 do not.

Why it is Option 6, and why you should trust the label

There is a genuine trap here that trips up older guides. On earlier PS5 firmware, this menu had seven entries and 'Clear Cache and Rebuild Database' sat at position five. Sony then inserted 'Repair Console Storage' at slot three, which shoved everything below it down by one and made the menu eight lines long. So today it is Option 6, but a two-year-old screenshot will swear it is Option 5, and both were correct on their respective firmware. The robust habit is to navigate by the label 'Clear Cache and Rebuild Database,' not by the number, because Sony has moved it once and can move it again. If a guide tells you the cache clear is 'Option 2,' close the tab: Option 2 is Change Video Output, and it has nothing to do with the cache.

What the destructive options do

While you are looking at this menu, understand the bottom of it so you never fat-finger it. Option 5, Restore Default Settings, resets system settings such as display and audio configuration but leaves your games and saves alone. Options 7 and 8 are the nuclear choices: they erase user data, with Option 8 additionally wiping and reinstalling the system software itself. The cache clear at Option 6 is nowhere near those in consequence, but the menu puts them three lines apart, so read before you press. For the whole of this tutorial you will only ever touch Option 6, and within it, only the first sub-option.

Clearing the Cache in 12 Steps

This is the procedure. Every step has a reason attached, because a maintenance routine you do not understand is a maintenance routine you will do wrong under stress. Do them in order. The whole thing runs about ten minutes, and most of that is the console booting and rebooting.

1. Confirm your firmware is current. Go to Settings, System, System Software, System Software Update and Settings, and install anything pending. Rationale: an out-of-date console produces bugs that look exactly like cache corruption, and updating first means you do not clear the cache only to discover the real fix was a download you skipped.
2. Close every running game and app. Return to the home screen and quit anything open. Rationale: Safe Mode maintenance operates on data the full OS holds open; starting from a clean, idle state avoids leaving half-written temporary files behind, which is the very thing you are trying to purge.
3. Fully power off the console. Do not use Rest Mode. Hold the power button briefly, choose Turn Off PS5 from the power menu, and let it shut down completely. Rationale: Safe Mode can only be entered from a true power-off state. Rest Mode's slow amber pulse is not 'off'; it is a low-power standby, and holding power from Rest Mode produces inconsistent behavior.
4. Wait for the indicator light to go fully dark. Give it several seconds after the fans stop. Rationale: you want the machine genuinely off, with no residual state and no lingering activity light, before you begin the button hold. Rushing this step is how people accidentally trigger a normal boot instead.
5. Have your USB data cable ready. Physically locate it and the controller before you start. Rationale: Safe Mode disables Bluetooth, so you will need to wire the DualSense in a moment, and hunting for a cable mid-procedure while a screen waits on you is the most common source of panic. Confirm it is a data cable, not charge-only.
6. Press and hold the power button; do not release on the first beep. You will hear one beep the instant the console begins to boot. Keep holding. Rationale: that first beep is the normal boot beep. Releasing there boots you straight into the ordinary home screen, and you start over.
7. Keep holding for roughly seven seconds until the second beep, then release. The second beep is the Safe Mode signal. Let go of the power button the moment you hear it. Rationale: the two-beep hold is the entire mechanism for entering Safe Mode. Release too early and you get a normal boot; release on the second beep and the console enters maintenance mode.
8. Connect the DualSense with the USB cable. Plug the cable into the controller and into a USB port on the console. Rationale: with Bluetooth off, this wired link is the only way the console can receive input. This is the step the missing-cable crowd fails at.
9. Press the PS button to register the controller. A single press on the central PS button. Rationale: Safe Mode will not respond to the pad until you explicitly press PS to activate the wired connection; the on-screen prompt is literally waiting for this.
10. Select Option 6, Clear Cache and Rebuild Database. Navigate down and confirm. Rationale: this is the correct entry, identified by its label rather than trusting the number blindly. It opens a sub-menu with the two operations discussed earlier.
11. Choose Clear System Software Cache. Pick the first sub-option, not Rebuild Database. Rationale: this is the light, fast, non-destructive operation that resolves the vast majority of cache-shaped problems in a minute or two. You escalate to Rebuild only if this does not fix it.
12. Let it finish and let the console restart on its own. Do not pull power, do not touch anything. Rationale: interrupting a cache operation mid-write is one of the few ways to actually create the corruption you were trying to remove. When it completes, the PS5 reboots to the login screen, and you are done.

That is the entire process. If you have done other twelve-step console procedures on this site, such as our walkthrough for downloading any Twitch VOD in twelve steps, the shape will feel familiar: the fiddly part is never the destination, it is entering the mode and getting an input device recognized.

Expected Output: Beeps and Menus

A tutorial that does not tell you what success looks like leaves you guessing whether it worked. Here is exactly what you should see and hear at each stage, so you can confirm you are on track without a second screen open.

The beep timeline

The audio cues are the whole game when entering Safe Mode. There are two beeps and the gap between them is the signal.

POWER BUTTON HOLD (console fully off, light dark)

t = 0.0s   press and HOLD ......... [beep #1]
           (boot beep - do NOT release)
t ~ 7.0s   keep holding .......... [beep #2]
           (Safe Mode beep - RELEASE NOW)
t > 7s     screen reads:
           "Connect the controller using the
            USB cable and then press the PS
            button."

If you only ever hear one beep and the home screen appears, you released too early; power off and try again, holding longer. If you hear the second beep but the screen stays black, give the display a moment to sync, and if nothing appears, jump to the troubleshooting table for the HDMI handshake fix.

The sub-menu you are aiming for

Once you select Option 6, the console does not immediately do anything destructive. It opens a small sub-menu offering the two operations. This is your last decision point, and for a cache clear you take the first road.

CLEAR CACHE AND REBUILD DATABASE
---------------------------------------------
  » Clear System Software Cache
        Deletes temporary OS files.
        ~1-2 min. Nothing you own is touched.

  » Rebuild Database
        Re-indexes the entire SSD.
        Minutes to ~1 hour on a full 8TB drive.
---------------------------------------------
For a cache clear, pick the FIRST one.

What completion looks like

The cache clear is fast enough that Sony does not bother with a progress percentage the way it does for the database rebuild. You get a brief working state, then the console simply restarts. There is no confetti, no confirmation dialog to dismiss, no 'cache cleared successfully' banner. The reboot to the login screen is the confirmation.

[ Clear System Software Cache ]
  Clearing system software cache . . working
  Cache cleared . . . . . . . . . . . done
  Restarting PS5 . . . . . . . . . . .

(Console reboots to the login screen. No
 percentage is shown for the cache step - it
 is fast. Do NOT pull power at any point.)

If your machine sat on a system update in step one, note that some 2026 updates were sizeable; the July 23 release, firmware 26.05-13.60.00, was a download of a little over 1 GB. That is worth knowing because if you are told an update is pending and the console seems to stall, it may simply be pulling that gigabyte down before it will let you into the maintenance flow. Update firmware and clear cache are separate jobs, and the update always wins the queue.

The Heavier Hammer: Rebuild Database

If the light cache clear did not fix your problem, or if your symptom pointed at the database from the start, the second sub-option under Option 6 is your escalation. It is the same menu, one line down, and it is a different weight class entirely.

What a rebuild actually does

Rebuild Database tells the console to scan every file on the SSD and construct a brand-new content index from what it finds. Think of it as re-alphabetizing a library after someone has been reshelving books at random for a year. It corrects a library that shows games you deleted, hides games you own, reports wrong install sizes, or presents a media gallery that has lost track of its own contents. Because it re-reads the whole drive, it does not lose your data, but it is a genuine operation with a genuine duration.

How long it takes

The honest answer is: it depends entirely on how full your drive is and how fast that drive is. On a near-empty internal SSD it can be a matter of minutes. On a heavily loaded 8TB M.2 expansion stuffed with modern hundred-gigabyte installs, it is an hour-class job, and the on-screen progress bar will crawl. Unlike the cache clear, the rebuild does show a percentage, precisely because it needs to, and you should let it run to completion uninterrupted. Pulling power partway through a rebuild is a reliable way to manufacture the exact database corruption you were trying to fix.

When to actually reach for it

Use the decision logic below rather than reflex. The cache clear is your default; the rebuild is for library and indexing symptoms specifically; and if both fail, the problem has escalated past anything Option 6 can touch. One persistent myth deserves killing here: clearing the cache does not reset your home-screen layout. That claim traces back to a Reddit anecdote, usually involving a game like Starfield, and what those users almost certainly did was a database rebuild, which can reshuffle how content is ordered. The cache clear leaves your layout alone.

IF symptom is (store page blank / app will not
   open / stutter right after an update /
   Rocket League "load failure"):
      -> Clear System Software Cache   (Option 6, first)

ELIF symptom is (game missing from library /
   wrong install size / gallery scrambled):
      -> Rebuild Database              (Option 6, second)

ELIF symptom survives BOTH of the above:
      -> Restore Default Settings (Option 5),
         then, as a last resort, Reset (7/8 = data loss)

ELSE:
      -> it is probably not the cache. Check free
         storage, thermals, and your HDMI cable.

Common Pitfalls and Fixes

Most failures in this procedure are not exotic. They are the same handful of mistakes, made over and over, and every one of them has a one-line fix. Read these before you start and you will avoid the lot.

Pitfall 1: The charge-only cable

You reach the Safe Mode screen, it asks you to press the PS button, you press it, and nothing happens. Nine times out of ten the cable you grabbed carries power but not data, so the controller charges but cannot communicate. Fix: swap to a known data cable, the kind that came with a device for syncing rather than a wall-charger throwaway. Test the pad by watching whether the PS button press wakes the on-screen prompt.

Pitfall 2: Releasing on the first beep

You hold the power button, hear a beep, let go, and the console boots to the normal home screen instead of Safe Mode. That first beep is the boot beep, not the Safe Mode beep. Fix: power fully off again and hold through the first beep, releasing only on the second beep about seven seconds in. The gap between the two is the entire trick.

Pitfall 3: Confusing Rest Mode with Off

You think the console is off because the screen is dark, but the power indicator is pulsing amber, which means Rest Mode. Entering Safe Mode from Rest Mode is unreliable. Fix: from the home screen, open the power menu and explicitly choose Turn Off PS5, then wait for the light to go fully dark before starting the hold.

Pitfall 4: Running the rebuild when you meant the cache

You wanted a two-minute cache flush and instead selected Rebuild Database, and now you are staring at a progress bar that says forty minutes. Fix: if it has genuinely started, the safest move is to let it finish rather than interrupt it; a completed rebuild is harmless and non-destructive. Next time, pick the first sub-option, Clear System Software Cache, not the second.

Pitfall 5: Expecting it to fix hardware

You clear the cache, the fan is still loud, the console still overheats, and you conclude the process failed. It did not fail; it was the wrong tool. Fix: recognize that cache clearing is a software remedy. Loud fans, thermal shutdowns, and physical noise are maintenance and hardware issues; clean the vents, check the environment, and stop expecting a software flush to move air.

Pitfall 6: The 'do it after every update' ritual

Someone told you to clear the cache after every firmware update as preventive hygiene, so you do, and your loads feel slower afterward. That is because a freshly cleared cache is an empty cache, and the console has to rebuild it. Fix: clear the cache when you have a problem, which is Sony's actual guidance, not on a schedule. A healthy cache is an asset, not a liability.

Troubleshooting Table

When the procedure does not go cleanly, work this table top to bottom. Each row is a symptom, its likely cause, and the concrete fix. If you exhaust the table and the problem persists, Sony's guidance is to contact PlayStation Support after updating, which the official system software application version page directs you toward for issues that survive an update.

Advanced Tips

Once you know the base procedure, a few adjacent techniques and clarifications separate people who understand the machine from people who are cargo-culting forum posts.

The power-drain reset is a different thing

You will see advice to unplug the console for twenty minutes to 'drain the power' and clear the cache. That is a full power-cycle, not a cache clear, and on modern hardware its effect is mostly to clear a stuck power state, not to purge the software cache. It is harmless and occasionally useful for a console that will not wake or is stuck on a black screen, but do not confuse it with the Safe Mode operation. If you want to actually flush the cache, only the Safe Mode route does that. Use the power-drain trick for stuck-power symptoms, and the Option 6 route for cache symptoms.

Storage headroom is a real variable

A drive running near capacity misbehaves in ways that mimic cache corruption: slow installs, failed updates, stutter. Before you blame the cache, check how much free space you have, and keep a comfortable margin, because the console needs scratch room to stage updates and, ironically, to hold the very cache you are trying to manage. Freeing up space is sometimes the fix that a cache clear only appears to provide, because the update that finally installs afterward is doing the real work. This is also why the console got a dedicated Repair Console Storage option at slot three of the Safe Mode menu; storage integrity is now a first-class maintenance concern, which is part of the reason the same firmware line that shipped the free PSSR upgrade on the PS5 Pro also kept iterating on stability and storage handling.

Cite the label, never the number

This is the single most durable piece of advice in the entire guide, so it earns its own subsection. Sony has already moved the cache option once, from position five to position six, by inserting a new entry above it. It can happen again. Any procedure, printout, or memory that says 'press 6' is correct only until the next menu reshuffle, whereas 'select Clear Cache and Rebuild Database' is correct forever, because the label is stable even when the ordinal is not. Teach yourself to read the menu rather than count it, and you will never be defeated by a firmware update that renumbers the list.

The Complete Working Procedure

Here is the whole thing condensed into a single reference you can keep open on a phone while you work. It assumes nothing from the rest of the article; if you only ever read this block, you can still do the job correctly.

PS5 CACHE CLEAR - COMPLETE PROCEDURE
=============================================
REQUIREMENTS
  - PS5 or PS5 Pro on any 2026 firmware
    (verified through 26.05-13.60.00, 23 Jul 2026)
  - One USB DATA cable (not charge-only)
  - No PS Plus, no backup, no internet needed
    for the cache clear itself

PRE-FLIGHT
  1. Settings » System » System Software »
     System Software Update and Settings
     -> install any pending update FIRST
  2. Close all games and apps

ENTER SAFE MODE
  3. Power menu -> Turn Off PS5 (NOT Rest Mode)
  4. Wait for the indicator light to go dark
  5. Press + HOLD the power button
  6. Ignore beep #1 (boot beep)
  7. Release on beep #2 (~7s = Safe Mode)
  8. Connect DualSense via USB cable
  9. Press the PS button

CLEAR THE CACHE
 10. Select: 6  Clear Cache and Rebuild Database
 11. Choose:    Clear System Software Cache
 12. Wait for completion; console reboots itself
     -> DO NOT pull power at any point

ESCALATION (only if step 12 did not fix it)
  a. Repeat to Option 6 -> Rebuild Database
     (up to ~1 hr on a full 8TB drive)
  b. Still broken? Restore Default Settings (Opt 5)
  c. Last resort: Reset (Opt 7/8) = DATA LOSS,
     back up saves first

DATA SAFETY
  Cache clear ......... deletes nothing you own
  Rebuild database .... deletes nothing you own
  Restore defaults .... resets settings only
  Reset (7/8) ......... erases everything
=============================================

That is the complete, verified workflow. To restate the thesis one last time in plain terms: clearing the PS5 cache is a real, useful, ten-minute maintenance operation that lives at Safe Mode Option 6 and repairs a specific class of transient software faults without touching a single thing you own. It is not a performance mod, not a ritual, and not a fix for failing hardware. Use it when an app misbehaves, a store page breaks, or a game throws a load error, run the light Clear System Software Cache first, escalate to Rebuild Database only if the symptom is library-shaped, and navigate by the label rather than the number so the next firmware update cannot outsmart you. Everything else people tell you to do to the cache is, at best, harmless, and at worst, a longer way of doing nothing.