touch screen iphone 4s - GSM-Forum

Pat9429 · 12-01-2014, 10:16

hello,
Excuse me for my English.
the touch screen of my iPhone 4s does not work (bad contact) on a strip of 1/2 inch vertical right.
Is the U19 ic need resolder or should we check things before?
Thank you for this very complete forum.

jokkergsm · 12-01-2014, 11:10

check with another lcd before changing or resoldering ic's

Pat9429 · 12-01-2014, 11:23

thank you for your answer, but it's already done

Pat9429 · 12-01-2014, 14:44

hot air station and x40 Binocular screen is enough to do the job, because for reballing, I am not equipped!...

Pat9429 · 12-02-2014, 16:42

you know what pin u19 manages the extreme vertical strip right?
thank you

Pat9429 · 12-02-2014, 16:55

Quote:

Originally Posted by Pat9429

you know what pin u19 manages the extreme vertical strip right?
thank you

It's either H6 or G8 to the right of the vertical line U19 circuit?

PappaBaer2002 · 12-02-2014, 22:04

Where is your problem now?
What do you mean exactly saying "already done"? Did you reheat U19 or did you remove U19? Replaced oder recalled? Problem solved or not?

Pat9429 · 12-03-2014, 08:47

"already done" is the touch screen change.
I think the best solution "fairly easy" is to start with a hot air station, but is it sustainable?
Or should we do further testing before?

12-01-2014, 10:16	#1 (permalink)
Pat9429 Junior Member Join Date: Nov 2014 Posts: 7 Member: 2297918 Status: Offline Thanks Meter: 0	touch screen iphone 4s hello, Excuse me for my English. the touch screen of my iPhone 4s does not work (bad contact) on a strip of 1/2 inch vertical right. Is the U19 ic need resolder or should we check things before? Thank you for this very complete forum.

12-01-2014, 11:10	#2 (permalink)
jokkergsm No Life Poster Join Date: Jan 2002 Location: freak land Age: 44 Posts: 699 Member: 8866 Status: Offline Thanks Meter: 50	check with another lcd before changing or resoldering ic's

12-01-2014, 11:23	#3 (permalink)
Pat9429 Junior Member Join Date: Nov 2014 Posts: 7 Member: 2297918 Status: Offline Thanks Meter: 0	thank you for your answer, but it's already done

12-01-2014, 14:44	#4 (permalink)
Pat9429 Junior Member Join Date: Nov 2014 Posts: 7 Member: 2297918 Status: Offline Thanks Meter: 0	hot air station and x40 Binocular screen is enough to do the job, because for reballing, I am not equipped!...

12-02-2014, 16:42	#5 (permalink)
Pat9429 Junior Member Join Date: Nov 2014 Posts: 7 Member: 2297918 Status: Offline Thanks Meter: 0	you know what pin u19 manages the extreme vertical strip right? thank you

12-02-2014, 22:04	#7 (permalink)
PappaBaer2002 Crazy Poster Join Date: Jan 2014 Posts: 51 Member: 2110377 Status: Offline Thanks Meter: 5	Where is your problem now? What do you mean exactly saying "already done"? Did you reheat U19 or did you remove U19? Replaced oder recalled? Problem solved or not?

12-03-2014, 08:47	#8 (permalink)
Pat9429 Junior Member Join Date: Nov 2014 Posts: 7 Member: 2297918 Status: Offline Thanks Meter: 0	"already done" is the touch screen change. I think the best solution "fairly easy" is to start with a hot air station, but is it sustainable? Or should we do further testing before?