ipad can't be restored or updated because firmware is corrupt even in recovery mode

Hello wangshasha,

We're here to help.

Let's try the steps below for help troubleshooting why your phone can't be updated or restored because of corrupted firmware.

"Get more help

• If you see an error when you update or restore your iPhone or iPod, find out what to do.
• If you can't update or restore your device with recovery mode, you can't use recovery mode because of broken buttons or your device is stuck in Activation Lock, contact Apple Support."

If you can't update or restore your iPhone or iPod touch

Thank you for using Apple Support Communities.

Take care!