I am an Android developer and I have been using my SGS2 for a while and I was accessing the debugging mode without any problem, until I broke my phone's screen. I found a repairer who replaced the screen with another. Since that day I cannot access my S2 neither on Debugging mode, nor on USB File Transfer mode.
How can I fix this?
It still charges when connected to PC, but no feedback in my Win 7. I tried with other computers and getting the same things ...