I just got my screen replaced today due to earpiece speaker not working. Now my iPhone will not turn on at all. I have tried putting it into DFU Mode, Plugging it into 3 different computers, Using Jailbreak boot mode, Factory Restoring 3 times, running programs to kick it out of restore mode and Re-Jailbreaking. But it will still not load past the Apple logo. I have waited for 3 hours now. after about 20 minutes it resets itself and goes back to the loading screen. I will take it to get fixed as a last resort, I have just spent almost $180 getting it repaired. I have tried everything all the forums and youtube have suggested. Does anyone have any more tips or suggestions? EDIT: This phone was second hand, out of warranty, and has been jailbroken. I was told I would have to pay $200+ to get it replaced.