Hi looking for Schematic on Touch Panel Connector to troubleshoot hardware issue

If anyone has a schematic or better yet troubleshooting/service manual for XT875 would be greatly appreciated. My touch screen isn't working even after replacement and I think it has something to do with motherboard connection and need to check voltages/pin assignments. Any help very appreciated...I have had this phone for 4 years and hope to have it for another 4...

Scott

DAC Options for our new Type-C connector?

I'm hoping that with the new USB Type-C connector and Power Delivery 2.0, someone will finally make my ideal type of DAC for phone use in the car:

USB input for powering DAC from cigarette lighter adapter (2.1A)
USB input/output for connection to Type-C jack on phone - phone sends digital audio to DAC, and phone simultaneously charges at (relatively) high power thanks to Power Delivery 2.0
3.5mm audio line out - connect to car AUX input

Currently the DACs I find that come closest to meeting this are the FiiO E18 and the Creative Labs E5, but both add a lot of expense and complexity in trying to be everything to everyone (internal battery for portable use, headphone amp with volume control, etc.). Reviews also state that using them with a phone while also charging the phone can be very touchy.

Is anyone else looking for something like this, or have ideas about where it can already be found? I'm not averse to using a portable DAC in the car, but I want the phone charging to be pretty bulletproof. :good:

USB/MHL 11-pin Connector Pinout

I am having a hard time finding the pinout for the 11-pin USB/MHL connector for the various Samsung Galaxy S4.

Does anyone here know where the pinout of the connector may be found or otherwise have the information?