Apple iPad Air 2 (Cellular) iOS 8.1.1 IPSW firmware
Apple iPad Air 2 (Cellular)
Not signed
iOS 8.1.1
Build 12B436 For iPad5,4, J82AP
Global · IPSW
A newer version is available for this region: iPadOS 15.8.8
Apple no longer signs this version, so a normal restore with Finder or iTunes will fail. Use a signed version unless you know you need this one.
Download
1.95 GB
Downloads from appldnld.apple.com.
File details
- OS
- iOS 8.1.1
- Region
- Global
- Type
- IPSW
- Released
- Size
- 1.95 GB
- File name
iPad5,4_8.1.1_12B436_Restore.ipsw- MD5
adbfdc62a2299ca1f8e562e101c3532d- SHA-1
0b1165cb1c11e339985f886b96b1baf249359d5e- SHA-256
488585852733f1ced9fbe0e466075032a37b65b30fbde5f2002af2f831b8e5b6
After downloading, compare the checksum with the one above. If they differ, the file is incomplete — download it again.
Before you download
- Make sure your device’s model number is one of: iPad5,4, J82AP. You will find it in Settings → About phone, or on the box.
- This file is for the Global region. Installing another region’s firmware can remove features or block updates.
- Apple devices can only restore versions marked “Signed”.
- Back up your photos, contacts and files first, and charge the battery above 50%.
How to install
Use Finder on a Mac or the Apple Devices app / iTunes on Windows to install an IPSW file. Apple only accepts versions it is still signing, so check the “Signed” label before you download.
Read the guide: How to restore an iPhone, iPad or iPod with an IPSW file