Rep: 1
1
The upper 1/3 part of the touchscreen is very laggy and pretty much useless, and nearly every 20-60 seconds it acts like i touched anywhere on the screen. It can get really annoying! :/
PS: I have never seen the inside of an iPhone and i never tried to open it in any way!
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Rep: 63
2
2
Sounds to me like the digitizer needs replacement. Unfortunately, that is a rather difficult job so unless you want to hand your device in to a repair shop I recommend you buy an already assembled fixtureboard+digitizer+homebutton. I have made good experiences with that, got mine on eBay for 32$ here:
http://cgi.ebay.de/APPLE-IPHONE-3G-TOUCH...
Doing the job yourself is easy. Follow the step-by-step guide on ifixit and use the old LCD with the new digitizer/lens. You'll figure it out!
Before doing this, i'd check out the connector 2 and see if it's damaged, so you won't be out 30 bucks in case it's not the digitizer that's faulty.
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