c905 backupfirmware before flashing

Hi,

I have a c905 with a faulty down button. I tried to flash the phone with a new firmware but it didn't fix it. Now i'm trying to restore the original AT&T firmware so I can send it back for a new one. I've searched for the original firmware, but no one has it.

I have another AT&T c905 with the original firmware on it, i want to extract/backup the firmware from this phone so I can restore it to the other phone. Is there a way to do this?
I have a2uploader, and my phones are CID 53

there is no way to backup from phone and your problem is on the hardware, not software, might be keypad IC fault or check the button for yourself if warranty is over

Try change keypad