I understand your struggle.
I was frantically searching for solutions when it came to this issue. I had just completely rebuilt the phone, all the way down to its frame, for damage related reasons. It just so happened that I had an issue at one point seating the screen in the frame, so, as you may imagine, I put it upon myself to attempt to get it to sit in the frame nice and snug. In the process, the screen assembly came in and out of the phone a plethora of times. At some point during this process, I must have mixed up the 1.2mm screw with one of the 1.7mm screws.
Of course I didn't realize the fatality of my mistake until I came across this thread. I had also seen some other horror stories about how micro-soldering was your only option. At this point, I was willing to give most of any sensible ideas a shot, so I did.
I removed all four screws on the motherboard's screen assembly shield. After I did this, I then took a closer look at all of the screws I had sitting there on my desk. At this point, it was time to see if I had mixed any of them up (I did). It appeared that I had definitely mixed up the 1.2 or 1.3 millimeter screw with one of the 1.7mm screws. At that, I then took to measuring (by eye) the 1.3 and 1.2 millimeter screws to see which was shorter. I made my choice (which you could much more formally do), and put them all back in their designated holes.
HOWEVER, for the 1.2 and 1.3 millimeter screws, I did not tighten them as much, hoping that just maybe nothing would short out or that no further damage would o
Keep in mind,
I had spiritual help throughout the whole fiasco. :D
I then booted the phone
(no fingers crossed).
Hooray! The phone successfully was restored.
Keep in mind though, I may not have tightened the wrong one in place of a shorter screw to an extent where I could have broken it. Your condition may be different. I do, however, giving something of this nature a shot.
From one human to another,
take my word. I was skeptical, and you should be too, but if you really want that phone of yours back, give this a shot.
IF, and I mean IF, this phone is to act up again, I will attempt the remember to come back to this thread and let you fellas know.
this is not full-proof, but I do think it is worth a try.
Thanks all, hope you can carry through with your repairs!