We can try to figure out LCM controller by software probe. First we will establish backlight connectivity.
Download and run s1giveio1.4:
http://rapidshare.com/files/209057470/s1giveio14.zip
Issue the following commands, excluding the comment (starting at the comma and until the end of the line):
Code:
o ee 4 ; this should turn the backlight on
o ee 0 ; and this line should turn it off
Issue 'q' to quit.
Post your results. If backlight is on A2, you should be able to turn it on and off with the above two commands.