iPad 4 iTunes Error 9 - GSM-Forum

hardboy · 05-18-2017, 08:43

Hello.

iPad in DFU mode.
I already cheange:
USB cable
USB port
Battery
Touch screeen
Erase NAND IP BOX v2
Camera

And still after few second on screen I have info about error 9.

Someone have a solution or good advice how to repair ?

emrez · 06-24-2017, 12:56

Hi, try with 3eTools, -> see iTunes. ipad recovery mode when you throw software, does serial no? -> Nand is not ready for the software. No problem reading. Voltage, write feet should be checked..

TBC01 · 06-24-2017, 20:12

error 9 is usually unexpected drop from usb, is the battery charged enough minimum 20%?

to rule that out isolate the battery and run at 4.2v 2.1amps via psu, make sure battery posts are isolated. I am fairly sure HDFU which is what you have now is not able to charge a battery, this is due to system priorities in hdfu mode, it runs the barebones systems from usb power.

No serial number can be derived from a fresh nand install in itunes, thats actually why it trips hdfu.

05-18-2017, 08:43	#1 (permalink)
hardboy Freak Poster Join Date: Sep 2008 Location: Poland Age: 35 Posts: 139 Member: 863309 Status: Offline Sonork: 4540726 Thanks Meter: 41	iPad 4 iTunes Error 9 Hello. iPad in DFU mode. I already cheange: USB cable USB port Battery Touch screeen Erase NAND IP BOX v2 Camera And still after few second on screen I have info about error 9. Someone have a solution or good advice how to repair ?

06-24-2017, 12:56	#2 (permalink)
emrez Freak Poster Join Date: Jun 2016 Posts: 106 Member: 2588255 Status: Offline Thanks Meter: 29	Hi, try with 3eTools, -> see iTunes. ipad recovery mode when you throw software, does serial no? -> Nand is not ready for the software. No problem reading. Voltage, write feet should be checked..

06-24-2017, 20:12	#3 (permalink)
TBC01 Crazy Poster Join Date: Mar 2017 Posts: 57 Member: 2697189 Status: Offline Thanks Meter: 37	error 9 is usually unexpected drop from usb, is the battery charged enough minimum 20%? to rule that out isolate the battery and run at 4.2v 2.1amps via psu, make sure battery posts are isolated. I am fairly sure HDFU which is what you have now is not able to charge a battery, this is due to system priorities in hdfu mode, it runs the barebones systems from usb power. No serial number can be derived from a fresh nand install in itunes, thats actually why it trips hdfu.