Your iPhone asked to update, restarted, and never came back. Now there is a black screen, or an Apple logo that appears and disappears every few seconds, and three years of photos are sitting on the other side of it.
Start here: in almost every case of this kind, the files are still on the phone. The update did not delete them. What has failed is the phone's ability to start up, and that is a different problem from data loss. The danger is not the fault itself. The danger is the next thing that gets done to "fix" it, because the usual fix for a phone stuck after an update is a restore, and a restore erases the phone.
Below: what to do in the first hour, how to read what the screen is telling you, the actions that permanently destroy the data, and the point at which board-level work in a laboratory is the only route left.
What to Do Right Now
Do these in order. None of them writes to the phone.
- Do not tap Restore. If a Mac or PC is offering to restore the iPhone, close the window and unplug it. Restore erases the phone and installs a clean copy of iOS. It is the single most common way people lose their data after a failed update.
- Charge it properly for thirty minutes. Use a known good cable and a mains adapter, not a laptop port or a hub. A phone that ran its battery flat during an update can look completely dead until it has taken on enough charge to start.
- Try one force restart. On iPhone 8 and later: press and release Volume Up, press and release Volume Down, then press and hold the Side button until the Apple logo appears. Do this once or twice. Doing it twenty times in a row helps nothing and heats a board that may already be faulty.
- Write down exactly what you see. Dead black with no response? An Apple logo that comes and goes? A progress bar that stalls at the same point every time? A picture of a cable pointing at a laptop? Each of those points to a different fault, and it is the first thing any laboratory will ask you.
- Check iCloud from another device. If your photos and messages are already synced, this stops being an emergency in about five minutes.
- Then stop. If the only copy of something irreplaceable is on that phone, put it in a drawer and get advice before anyone attempts anything further. Our iPhone data recovery page explains what that involves.
Why Your Files Are Probably Still There
An iOS update replaces the operating system. Your photos, messages, notes and app data sit in a separate area of the same storage chip, and a normal update is not designed to touch them. When a phone dies during or just after an update, one of four things has usually happened.
- The installation was interrupted. Power was lost, the battery gave out, or the phone was restarted mid-write. iOS is left half-installed and cannot start, so the phone loops or drops into recovery mode.
- The battery was already weak. An update is one of the heaviest power draws a phone ever experiences. A battery that was coping with everyday use can fail the moment it is asked for a sustained load.
- A board-level fault surfaced at the worst moment. An update forces a full cold start, possibly the first in months. Marginal power circuitry, a tired connection or a failing component often gives up exactly then. The update gets the blame; the hardware was already on the way out.
- The storage itself is genuinely failing. This is the least common cause. The tell-tale sign is that the phone had been getting slower, apps had been quitting unexpectedly, or it had frozen repeatedly for weeks beforehand.
In the first three, the flash memory holding your files is intact and readable. The phone simply cannot get far enough through its own start-up to hand them over. That distinction is the whole point of what follows: the job is to reach the data without wiping the part that still works.
What the Screen Is Telling You
Before anyone touches the phone, work out which of these you have. It changes what is safe to do next.
| What you see | Usual meaning | What it means for your data |
|---|---|---|
| Apple logo appears, vanishes, repeats (boot loop) | iOS did not finish installing, or a component fails as the system loads | Data area normally untouched. Prospects are usually good |
| Apple logo with a progress bar that stalls at the same point | Update part-written and unable to complete | Data usually intact. Do not let a computer “solve” this by restoring |
| A cable pointing at a laptop (recovery mode) | The phone is asking to be reflashed | The highest-risk screen of all. Update keeps data, Restore erases it |
| Completely black after 30 minutes on a mains charger, no vibration | Power fault on the logic board, or a dead battery | Storage is almost always fine. Needs board-level work in a laboratory |
| Gets hot, will not start, drains fast | Short circuit or failing power circuitry | Unplug it. Heat is what turns a recoverable board into a scrapped one |
If you are unsure which one you have, photograph the screen with another phone. It is more useful to a laboratory than a description.
What Not to Do: Restore, DFU and Erase
Restore in Finder or iTunes
When a stuck iPhone is connected to a Mac or PC, two buttons appear. Update reinstalls iOS and is intended to keep your data. Restore erases the phone completely and installs a fresh copy of iOS. They sit side by side, and the second one is what gets suggested when the first one fails.
Update is a reasonable thing to try once. Restore is not something to try at all while the phone holds the only copy of anything you care about.
DFU restore
Device Firmware Update mode goes deeper, rewriting the phone at firmware level. A DFU restore always erases user data. Forum advice reaches for it quickly because it genuinely does produce a working phone. It produces a working, empty phone.
Erase All Content and Settings, or Erase iPhone from Find My
People sometimes try this hoping to clear a stuck update. It does precisely what its name says, and it does it remotely, without the phone ever needing to be in your hand.
Handing it over without saying the data matters
Anyone who works on phones will reflash first, because a working phone is the goal of their trade. Say in writing, before you hand it to anybody, that the data is the priority and that nothing is to be erased or restored. If they cannot agree to that, do not leave the phone.
The rule is simple. Any step described as clean, fresh, wipe, reset, reflash or from scratch is a step that ends the possibility of recovery.
Check iCloud and Your Backups Before You Spend Anything
Ten minutes here can save you a laboratory visit entirely.
- iCloud. Sign in at iCloud.com from any browser and check Photos, Drive, Notes and Contacts. If Messages in iCloud was switched on, your conversations may be there as well.
- Another Apple device. An iPad or Mac signed in to the same Apple Account often already holds the same photo library and notes.
- A computer the phone was ever plugged into. Finder on a Mac, or the Apple Devices app on Windows, keeps local backups even if you have forgotten making one. Backups from years ago are still better than nothing.
- WhatsApp. It keeps its own backup in iCloud on a schedule of its own. Check the date of the last one before assuming it is lost.
If the backup exists but the machine or drive holding it has since failed, that is a separate and usually more straightforward job. See Mac data recovery if the backup lived on a MacBook or iMac, or external hard drive recovery if it lived on a portable drive. If the files were deleted from a computer rather than lost with the phone, deleted file recovery is the page you want.
Only when the honest answer is “the phone is the only copy” does a laboratory become necessary.
When Board-Level Work in a Laboratory Is the Answer
If the phone will not start, nothing useful is in iCloud, and there is no backup, the remaining route is to work on the logic board itself so that the storage can be read.
In practice that means the board is examined under a microscope, power rails are measured, and faulty components are reworked until the phone reaches a state where its storage can be read and imaged. The point of that work is the image, not the phone. You receive your recovered files, not a repaired device, and the handset itself may well never be usable again.
Two things are worth understanding before anyone opens it. First, the original board has to be kept intact. The storage chip is tied cryptographically to the secure hardware on that specific board, so lifting the memory chip out on its own yields encrypted data that nothing can read. A board swapped in from another phone does not bring your files with it. Second, this is laboratory work on media to make it readable, not troubleshooting and not a fix for iOS.
At our laboratory at 6 Harper Road, beside Tai Seng MRT, diagnosis is free and you receive a fixed written quote before any work starts. Nothing is sent overseas; the cleanroom and the bench work are on our own premises. Before you pay, you see the list of recovered files and confirm it is what you were looking for, and standard cases are handled on a no recovery, no fee basis. Everything is handled in line with Singapore's PDPA, and an NDA is available on request.
CBL has been recovering data in Singapore for more than 20 years, with over 140,000 recoveries completed and a rating of 4.9 stars from 909 Google reviews. For how quotes are put together, see data recovery cost in Singapore, or send us the details of your phone and we will tell you what is realistic before you come down.
When you come, bring the phone and its cable. If you know which iOS version it was installing, and whether it had shown any symptoms in the weeks before, say so. It shortens the diagnosis.
Your Passcode Is Required, and Nobody Can Work Around It
Everything on a modern iPhone is encrypted while it sits on the storage chip. The keys live in the phone's secure hardware and are unwrapped by your passcode. That design is why a stolen iPhone is not a stolen photo album.
It also sets a hard limit on recovery. We cannot read the contents of an iPhone without the passcode, and neither can anyone else. Any service claiming it can bypass a passcode, an Apple Account or Activation Lock is either mistaken or misleading you, and handing your phone to that kind of operation is how a recoverable board ends up beyond help. We are not apologising for the limit. It is the reason your data is safe when the phone is out of your hands.
The same applies to ownership. Proof that the phone is yours is part of the process, and we will ask for it. If the passcode has genuinely been forgotten, there is no path to the data on the phone, and the honest advice is to work through iCloud or an older backup instead.
This is not unique to phones. Encrypted computer drives behave the same way, which is why BitLocker recovery also begins with your own recovery key, and why the first thing worth doing today, on every device you own, is finding out where your keys and backups actually are.