Why is my touch screen not working properly?
After replacing the power button and back glass, my iPhone touch screen seems to responding erratically and unpredictably.
Is this a good question?
Score
9
136981
4 Answers
Chosen Solution
Rep: 661
5
2
1
Okay this could be down to a few things, connection issues or the flex could be damaged.
First please try a hard reset by holding down the power and home button at the same time until the screen goes black and the apple logo appears, then let go. if the issue is still present please do the following.
Complete the following guide and remove your display completely iPhone 4 (GSM/AT&T) Screen Replacement
Once you have done this check the following locations for any type of damage,
Both sides of flex, as there is a snag point with could have been damaged.
These connectors are for both the LCD and the touch screen, it is worth checking both and possible cleaning them with isopropyl alcohol and a cotton bud if they appear dirty in some way.
It is likely the flex has become damaged, if it has please replace and the issue should be resolved. If the flex appears okay, sadly you may have to resort to replacing the screen anyway.
Please let me know how you get on and I'm alway here to help just ask.
Best Regards
Brendan Mills
Was this answer helpful?
Score
5
where shall i buy iphone 4s touch screen ? how much cost for touch diplay? i am from india
yes ur answer is correct .., but how much time can i reset my iphone4 ?..
kindly share alternate solution
thanks in advance
thank you for working
Rep: 37.6k
22
51
42
First try a hard reset
Press and hole the power and home button togeather for about 7 seconds then let go of home and keep pressing power this will restart it and see if the touch work then
Was this answer helpful?
Score
3
Rep: 49
1
As we know to replace iphone 4/4s power button we unsrew it all the way until we raech power flex at the same time during replacement of power button you might left touch flex losen or it get broken try with new screen if it works then fine otherwise try replacing another power flex it might be problem with flex who actually making touch not to respond properly thanks
Was this answer helpful?
Score
2
It's a common mistake to damage the touch digitizer ribbon cable when removing the screws for the power button, need to be extra careful not to touch the display cables when doing so.
Unfortunately when this happens the screen needs to be replaced.
4 Comments
How to fix a iphone 4s that the screen is not working the left screen is working but the right screen isn't working
by ALBERTTTTSS
My 4s touch is not responding after I open it for WiFi antenna its wifi signal range is too low...and after I resemble it its touch not responding any way...plzzz help me..thnxx in advance..
by samzz
iphone touch not working after change my charger
by Dasara Krishna
sir my iphone 4s touch not work plzz help me
by Arif Warsi