Apple iPad Air 4 (Cellular) iPadOS 15.5 IPSW firmware
Apple iPad Air 4 (Cellular)
Not signed
iPadOS 15.5
Build 19F77 For iPad13,2, J308AP
Global · IPSW
A newer version is available for this region: iPadOS 27.2 beta 4
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
5.35 GB
Downloads from updates.cdn-apple.com.
File details
- OS
- iPadOS 15.5
- Region
- Global
- Type
- IPSW
- Released
- Size
- 5.35 GB
- File name
iPad_Fall_2020_15.5_19F77_Restore.ipsw- MD5
3f24813e73fcbd0b848fc208dbc9fa41- SHA-1
cb1f03199d3eb55fec317c568810a1ab8a47e3f5- SHA-256
e1de75517eceaab1a2a3db0641ad499e11002b87264f1b00737c563cb700f7f8
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: iPad13,2, J308AP. 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