Revamped version of the iPhone 3G with faster processing speeds. Repair of this device is similar to the 3G, and requires simple screwdrivers and prying tools. Model A1303 / 16 or 32 GB capacity / black or white plastic back.

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How to fix Blank Screen but the Phone is Working?

I Have Iphone 3GS 16gb, I got it off ebay for £30 the Screen was smashed and was unknow if working. after getting the phone I checked for water damage and the was no sign, I fix the screen and had the phone working for 5 days then backlight started going off and on. I then check the for damage on motherboard but the was no sign of damage after putting the phone back together the phone was fine for a day but then the screen stop working and was blank but the phone is still working and works in itunes, I have put a new LCD and it still not working. I have try resettinng and everything but coz I have downgrade 4.1 and I now cant update only re jailbreak to 4.1. Am just about ready give up! anyone got any ideas?

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kimberley roby, check the 6R8 coil first. It might be that it has failed. The intermittent error would be consistent with that. If your coil checks out okay you may have to look further into the IC 109 which may not bne working. Proceed in a systematic manner and work on one part at the time. Check this site for the voltage measurement. Hope this helps to get you started, good luck.

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