iPad Air 2 (Cellular)
Unsigned iPadOS

iPadOS 8.2 (12D508)

iPad Air 2 (Cellular)

iPad5,4_8.2_12D508_Restore.ipsw
Device
iPad Air 2 (Cellular)
Identifier
iPad5,4
OS
iPadOS
Version
8.2
Build
12D508
Release Date
2015-03-09
Upload Date
2015-03-04
Size
1.95 GB
Status
Unsigned
SHA1
8e5d23e1d6ef069e239848b183fed322de5f924a
SHA256
a80ab7d7d4aa5aecd40e99b22f368f892a11935d5245c86432cdeb0c12dcdcb0
MD5
9de734b049658461c94349bb416ddbac

iPadOS 8.2 Release Notes

This release introduces support for Apple Watch, and also includes improvements to the Health app, increased stability and bug fixes.

Apple Watch support

  • New Apple Watch app to pair and sync with iPhone, and to customize watch settings
  • New Activity app for viewing fitness data and achievements from Apple Watch; appears when Apple Watch is paired
  • Available on iPhone 5 and later

Health app improvements

  • Adds the ability to select the unit of measurement for distance, body temperature, height, weight and blood glucose
  • Improves stability when dealing with large amounts of data
  • Includes the ability to add and visualize workout sessions from 3rd-party apps
  • Addresses an issue that may have prevented users from adding a photo in Medical ID
  • Fixes units for vitamins and minerals
  • Fixes an issue where Health data wouldn’t refresh after changing data source order
  • Fixes an issue where some graphs showed no data values
  • Adds a privacy setting that enables turning off tracking of steps, distance and flights climbed

Stability enhancements

  • Increases stability of Mail
  • Improves stability of Flyover in Maps
  • Improves stability of Music
  • Improves VoiceOver reliability
  • Improves connectivity with Made for iPhone Hearing Aids

Bug fixes

  • Fixes an issue in Maps that prevented navigating to some favorite locations
  • Addresses an issue where the last word in a quick reply message wasn't autocorrected
  • Fixes an issue where duplicate iTunes purchased content could prevent iCloud restore from completing
  • Resolves an issue where some music or playlists didn’t sync from iTunes to the Music app
  • Fixes an issue where deleted audiobooks sometimes remained on device
  • Resolves an issue that could prevent call audio from routing to car speakers while using Siri Eyes Free
  • Fixes a Bluetooth calling issue where no audio is heard until the call is answered
  • Fixes a timezone issue where Calendar events appear in GMT
  • Addresses an issue that caused certain events in a custom recurring meeting to drop from an Exchange calendar
  • Fixes a certificate error that prevented configuring an Exchange account behind a third-party gateway
  • Fixes an issue that could cause an organizer’s Exchange meeting notes to be overwritten
  • Resolves an issue that prevented some Calendar events from automatically showing as 'Busy' after accepting an invite

For information on the security content of this update, please visit this website:

http://support.apple.com/kb/HT1222

How to Restore iPadOS 8.2 IPSW

🖥

iTunes (Windows / macOS Mojave and older) & Finder (macOS Catalina+)

  1. Download the iPad5,4_8.2_12D508_Restore.ipsw file to your computer.
  2. Connect your iPad Air 2 (Cellular) to your computer with a USB cable.
  3. Open Finder (macOS Catalina+) or iTunes (Windows / older macOS) and select your device.
  4. To Update (keeps data): hold Option (Mac) or Shift (Windows) and click Check for Update.
  5. To Restore (erases data): hold Option (Mac) or Shift (Windows) and click Restore iPhone/iPad.
  6. Navigate to and select the downloaded .ipsw file, then confirm.
  7. Wait for the process to complete — do not disconnect the device.
⚠️ Note: This firmware is no longer signed by Apple. iTunes/Finder may reject the restore. Use a tool like futurerestore if you have saved blobs.
⌨️

idevicerestore (Command Line)

An open-source command-line tool that restores IPSW files without needing iTunes. Useful for advanced users, automation, and custom restore workflows.

  1. Install via Homebrew: brew install idevicerestore
  2. Connect your device and put it into DFU mode.
  3. Run the restore command:
idevicerestore -t iPad5,4_8.2_12D508_Restore.ipsw
Common flags:
-eErase restore (factory reset) -uUpdate restore (keep data) -dEnable debug output -nDry-run — don't actually restore
🔓

futurerestore (Saved Blobs / Downgrade)

futurerestore allows restoring to unsigned firmware like this one when you have saved APTickets (blobs) from a tool like TSSSaver or shsh.host.

  1. Download futurerestore from github.com/futurerestore/futurerestore.
  2. Ensure you have a saved .shsh2 blob for iPadOS 8.2 (12D508) on your iPad Air 2 (Cellular).
  3. Put your device into DFU mode and run:
futurerestore -t your_blob.shsh2 --latest-sep --latest-baseband iPad5,4_8.2_12D508_Restore.ipsw
⛔ Warning: Using --latest-sep requires the latest SEP to be compatible with iPadOS 8.2. Always verify compatibility before restoring to avoid a bricked device.
📲

Entering DFU Mode

DFU (Device Firmware Update) mode is required for most manual restores. The button combination varies by device:

iPhone 8 / X and later / iPad with Face ID
Press & release Volume Up → press & release Volume Down → hold Side button until screen goes black → hold Side + Volume Down for 5 s → release Side but keep Volume Down for 10 s.
iPhone 7 / 7 Plus
Hold Side + Volume Down for 8 s → release Side but keep Volume Down for 10 s.
iPhone 6s and earlier / iPad with Home button
Hold Home + Sleep/Wake for 8 s → release Sleep/Wake but keep Home for 10 s.

💡 Tip: In DFU mode the screen stays completely black. If you see the Apple logo or a "Connect to iTunes" screen, you entered Recovery mode instead — try again.

⇓ Download IPSW Firmware (1.95 GB)
iPad Air 2 (Cellular)
Other Signed iPadOS Versions
1 items iPadOS 8.2 (12D508)