My iPhone 3GS 6.1.6 can't be detected by iTunes, computer, and other softwares.
What should I do? It is a second-hand phone and before these events happened, I've jailbroken this phone unsuccessfully. Please, help!
- I've already tried using another USB and another computer but it didn't work.
- The screen of my phone is completely black.
- Whenever I try entering DFU or recovery mode, it won't work.
- I tried charging the phone but nothing appears on the screen.
What should I do? It is a second-hand phone and before these events happened, I've jailbroken this phone unsuccessfully. Please, help!
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