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原帖由: Ethan Chow ,

文本:

You likely have purchased a retail demo unit with a special firmware. The hardware is (probably) identical to the regular tab 4, so you can just ODIN it back to the stock consumer firmware.

Instructions here, you need a PC and usb sync cable.

http://forum.xda-developers.com/tab-4/general/guide-how-to-restore-stock-firmware-t2979006

Download links for FW and drivers:

http://forum.xda-developers.com/tab-4/general/links-stock-galaxy-tab-4-firmware-t3013128

状态:

open