URGENT HELP NEEDED WITH IPHONE 3GS - Wont Turn On

[DJEFFX]

Right okay, so today I picked up my iphone 3gs 16gb from the screen replacement shop as i just had the screen replaced due to a cracked screen, when i got home, the phone worked perfectly fine, about 20 minutes ago, i pressed the home button, and nothing happened, i knew exactly that my charge on the phone was around half full or so, i panicked and pressed the home button and sleep/wake button for 15 seconds, which is a hard reset i believe? again, nothing, with even more panic, i went to get my usb charger and connected it to my laptop, and yet again, nothing at all, not even itune recognises it, please help me, i already tried connecting it to my laptop and going into DFU mode but nothing happened, could it be the screen replacement places fault?? I am literally desperate for help.
Please let me know
thanks

 

[hoagtech]

Right okay, so today I picked up my iphone 3gs 16gb from the screen replacement shop as i just had the screen replaced due to a cracked screen, when i got home, the phone worked perfectly fine, about 20 minutes ago, i pressed the home button, and nothing happened, i knew exactly that my charge on the phone was around half full or so, i panicked and pressed the home button and sleep/wake button for 15 seconds, which is a hard reset i believe? again, nothing, with even more panic, i went to get my usb charger and connected it to my laptop, and yet again, nothing at all, not even itune recognises it, please help me, i already tried connecting it to my laptop and going into DFU mode but nothing happened, could it be the screen replacement places fault?? I am literally desperate for help.
Please let me know
thanks

If your computer recognises it in itunes and restores properly. It would be a hardware related issue.

I would first open the phone and reconnect your lcd/headphone/digitiser (1,2,3)

Most of the time you should see white coming from a broken lcd. I would bet it either a loose connection or your water damaged iphone has finally caught up.

 

[DJEFFX]

If your computer recognises it in itunes and restores properly. It would be a hardware related issue.

I would first open the phone and reconnect your lcd/headphone/digitiser (1,2,3)

Most of the time you should see white coming from a broken lcd. I would bet it either a loose connection or your water damaged iphone has finally caught up.

Nope, Itunes doesn't recognize it. And my phone hasn't been anywhere near water, I've always had a silicone case around it and a screen protector most of the time.