/mnt1/System => Delete!

Hello,

Sorry for my bad english, it's not my language.

I have a problem with my iPhone 4. Unintentionally, I deleted the file / mnt1/System.

It is wanting bypass my iPhone because of the iCloud protection.

I tried to restore the system files by taking on another iPhone 4 but my program displays an error "not the same serial number."

Can you help me?

thank you