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原帖由: ankur ,

文本:

If it happens all of sudden, then this will be a software issue.

Problem may be of two type :

1- Software

2- Hardware

Software can be repair through Hard Reset, Just try the combination (Power + Volume up + Menu)

and if it fails then you have to Flash the device.

Download files from Samsung-updates.com

and check guide [http://mytabletguru.com/flash-samsung-android-odin-tool/|how to flash samsung android tablet]

Hardware Issue:

If the software section fails to solve your issue, then you have to Change network ic.

(Use multimeter to check PCB)

状态:

open