ITunes Errors/Below 100
- You are attempting to downgrade an iPhone from iOS 5 to iOS 4.x. To resolve, use either custom firmware created by PwnageTool/sn0wbreeze or use notcom's fixrecovery utility available on his site.
- On an iPhone 4 downgrading from iOS5 use the option in TinyUmbrella to allow a baseband "upgrade" to bypass the error and go back to basband 4.10.1
- Unable to downgrade. Try changing the USB port (the back one of chassis is better) and restart computer.
- The installed version of iTunes may also be too old. Update iTunes.
ASR does not exist on ramdisk or is corrupt/not signed.
Not enter the downgrading mode, change USB port (the back one of chassis is better) and restart computer.
- Due to asr being patched, the SHA signature is automatically changed and after being resigned the kernel will refuse to use it. Therefore proper kernel patches are required. If necessary kernel patches are not applied, it will fail to load asr and error 9 would occur during restore.
- Removed bbfw file in the firmware folder of an unzipped IPSW. Can also be used to prevent a baseband update. The device is bootable, if you set the auto-boot to true or use TinyUmbrella and use "Kick Device out of Recovery".
- You are trying to update to a custom firmware from Pwnage Tool 4.1+. You always have to go into DFU mode and restore from there.
Occurs when you want to install a beta firmware with iTunes for Windows (actively blocked by Apple; beta users are developers and therefore must have a Mac).
Error 13 may also signify a USB problem. Check the USB connection and try other direct ports or maybe the USB cable is an older one. Device isn't bootable.
The installed version of iTunes may also be too old. For firmwares 4.0 and higher you need iTunes 9.2 or higher. Update iTunes.
Custom firmware update fail (PwnageTool until 4.0.1). You have to restore the device with a custom firmware. Update to a custom firmware isn't working. Device isn't bootable. 2
USB Problem. Check the USB connection and try other direct ports or maybe the USB cable is an older one. Device isn't bootable.
You're trying to 'update' to a beta firmware instead of performing a restore. Device is still bootable if you kick it out of recovery mode.
- Device failed to display the applelogo img3 which results in this error.
- One or more of the nand0/nor0 flash images were missing from the IPSW.
This occurs when the media library on the device is corrupt and cannot be modified or updated.
Updating to the latest version of iTunes and then restoring should resolve this issue
Error when downgrading 2.0 to 1.1.1.
Custom firmware restore fail (PwnageTool since 4.1). You have to put your device into the DFU mode and not into recovery mode. Device won't boot correctly an stuck at the Apple logo after the error. Press and hold power and home button until it reboots.
Cannot restore or update due to hardware problems.
- In software you have to set default web browser.
- In hardware, it's a communication problem. Check all connections, also try to change battery.
- faulty baseband flash or processor
- Happens frequently after water damage. Remove and clean motherboard.
Hardware error. Return your device to Apple if possible. The problem is a bad dock connector on the iPhone. Must change the connector. If you have tried almost everything, reset the logic board (leave uncharged for five days or remove battery for half an hour), then pwn and restore. if this doesn't work, the "hard disk" of your iPhone is damaged.
See Apple discussions thread about this problem. You might need to change the battery.
Hard disk is run out of space when trying to download TV show's or movie's Please clear space and then continue downloading.