Samprix
Apple / Reset, Flash & Recovery

iPhone 12

Official reset & flash steps, plus guided recovery if something goes wrong — every download clearly marked official or third-party.

Reset & Flash Steps Something Went Wrong? All Downloads
Select your exact model variant first

Flashing firmware meant for a different region/carrier variant can cause serious issues (IMEI/baseband loss). Confirm your model code in Settings > About phone.

Reset & Flash Steps

Pick what you want to do.

1-2 minutes
No data loss
Before you start
  • Device is powered on, frozen, or unresponsive
  • No computer or cable connection required
Steps
  1. 1 1. Press and immediately release the Volume Up button.
  2. 2 2. Press and immediately release the Volume Down button.
  3. 3 3. Press and hold the Side (Power) button continuously.
  4. 4 4. Ignore the 'slide to power off' slider when it appears on the screen.
  5. 5 5. Keep holding the Side button until the screen turns black and the white Apple logo appears, then release.

Something Went Wrong?

Tap what you're seeing to get the fix.

Device-Specific Warnings

Button combo
Force Restart: Press and release Volume Up, press and release Volume Down, then hold Side button until Apple logo appears. Recovery Mode: Connect to computer, press and release Volume Up, press and release Volume Down, then hold Side button until the recovery graphic (cable pointing to computer) is displayed. DFU Mode: Connect to computer, press and release Volume Up, press and release Volume Down, hold Side button for 10s, then hold Side and Volume Down together for 5s, then release Side and continue holding Volume Down for 10s until recognized with a blank black screen.

All iPhone 12 regional models (A2172, A2402, A2403, A2404) utilize the universal iOS IPSW package (iPhone13,2). Note hardware distinctions: US models (A2172) feature a side 5G mmWave antenna window; China mainland/Hong Kong models (A2404) have a physical dual nano-SIM tray and disable eSIM and FaceTime Audio functionality by default.

  • Storage full crash loop (Error 1110): Performing an update when internal flash memory is completely exhausted will corrupt the APFS file system, requiring a destructive factory restore.
  • Ear Speaker / Receiver Module hardware fault (Error 4013): Corrosion or physical fracture of the top sensor flex (proximity/ambient light sensor) causes Apple hardware integrity checks to fail and abort firmware flashing.
  • Sudden cable disconnection during NAND write: Disconnecting the Lightning cable while writing baseband or system partitions can corrupt the bootloader and trap the phone in DFU mode.
  • Flashing unsigned IPSW: Apple restricts restores strictly to firmware versions currently signed by Apple TSS verification servers.

All Downloads for This Device

Every file and tool used above, in one place.

Apple Finder (macOS Built-in)
Native iOS device restore and firmware update manager integrated into macOS Catalina (10.15) and newer.
Official Verified 2026-08-17
Apple Devices App / iTunes for Windows
Official Apple standalone installer for Windows 10/11 64-bit systems.
Official Verified 2026-08-17
Apple iOS Official IPSW Firmware
Third-party verified index for verified Apple CDN download links with real-time TSS signing status for iPhone 12 (iPhone13,2).
Third-Party (Verified) Verified 2026-08-17