Samsung S3 I9300 Digitizer IC replacement need advice/help - GSM-Forum

zhizhi778 · 03-23-2014, 22:29

Hello!
I've got a Galaxy S3 I9300 with a burnt digitizer IC lying here. I want to try to replace the digitizer IC.
Attached Is a picture showing the IC.
I know it would be easier to replace the whole display unit but since I want to learn and practise my soldering experiences I want to ask for advice here:

Given the location of the IC what do you suggest to get it out there without damaging it and how to solder a new one in place?
I've got a hot air rework station and (electronics) soldering equipment available.
I have also a vacuum pump for holding small parts in place available.

My concerns are how to protect the resistors nearby while using hot air or otherwise by using a tip how to reach the pins near the resistors?
What would be a good/the best method for this replacement?

http : / / i m g u r . com/Xf59c9T

Thanks and best regards
Zhizhi778

dannyogolo · 06-10-2014, 16:58

Did you succeed?
I have 2 units same problem - it displays but the digitizer doesnt touch.
You should also be concerned about the heat getting to the LCD

03-23-2014, 22:29	#1 (permalink)
zhizhi778 Junior Member Join Date: Mar 2014 Posts: 1 Member: 2153721 Status: Offline Thanks Meter: 0	Samsung S3 I9300 Digitizer IC replacement need advice/help Hello! I've got a Galaxy S3 I9300 with a burnt digitizer IC lying here. I want to try to replace the digitizer IC. Attached Is a picture showing the IC. I know it would be easier to replace the whole display unit but since I want to learn and practise my soldering experiences I want to ask for advice here: Given the location of the IC what do you suggest to get it out there without damaging it and how to solder a new one in place? I've got a hot air rework station and (electronics) soldering equipment available. I have also a vacuum pump for holding small parts in place available. My concerns are how to protect the resistors nearby while using hot air or otherwise by using a tip how to reach the pins near the resistors? What would be a good/the best method for this replacement? http : / / i m g u r . com/Xf59c9T Thanks and best regards Zhizhi778

06-10-2014, 16:58	#2 (permalink)
dannyogolo No Life Poster Join Date: Nov 2002 Location: Nigeria Posts: 2,980 Member: 18200 Status: Offline Sonork: 100.1608286 Thanks Meter: 82	Did you succeed? I have 2 units same problem - it displays but the digitizer doesnt touch. You should also be concerned about the heat getting to the LCD