Chosen Solution
While I was playing a game the phone just crashed (screen got grey), so I removed the battery, put it back in, but the phone doesn’t want to turn on or charge now. When I connect it to my laptop, it gets recognized. Well, nothing shows up, only the sound gets played but after few seconds it plays the sound when you disconnect the device than it plays the “connect” and again the “disconnect” sound and this goes on and on. I think I can say that it is getting power becase when i push the power button or plug it into charger I can see small red light in the light sensor. What shoud I do?
@jump3r for a known-good starting point I suggest that you start with a new battery. “plays the sound when you disconnect the device than it plays the “connect” and again the “disconnect” sound” this could be a sign of a failed battery.