Chosen Solution
Hi, Am trying to fix a waterdamaged 5S, got everything working expect the touch screen. The screen is tested and works fine, i have cleaned the phone thrice with alcohol I assmue the the touch IC is broken, So my question is, where is it located - is it replaceable ?
Sami420, that would be the Broadcom BCM5976. Check step 13 of this guide. It is a BGA IC and will need to be replaced through a reball method. For that you need special equipment as well as very strong skills.
