Having read the title...
...it wasn't hard to guess the name on the byline.
7 publicly visible posts • joined 23 Aug 2012
They are in all probability knackered. The BGAs separate from the mainboard without much encouragement.
First you'll lose the sensor that detects the cover is off and disables the mmc slot (you can work around this by editing and recompiling the module *OPENSOURCE FTW!*), then you'll lose the radio module (no phone functionality) and finally you'll lose the internal 32G mmc - BRICKED!
I bought a replacement on ebay (tested, the vendor said) and surprise, surprise it had the same faults as the unit I wanted to repair.