Did I Fry My Key?

[Jehu]

If I had the two batteries in the key the same way,one in the wrong way for about 12 hours could that damage the transmitter? I have still not figured out why the locking system won't initialize with the key. I've replaced a sticky door actuator and all the locks work when using the key in lock to lock or unlock,even the trunk lock when locked locks the doors and the fuel door ... I just bought a brand new truck actuator because when the remote system was working the key button never locked or unlocked the trunk so I assumed it was bad or one of the wires in the trunk was broken to the actuator.. I checked and repaired any damaged wires. First off If the key locking the Trunk locks the doors too that means the actuator is OK doesn't it? So my problem seems more likely either the key transmitter or the receiver ,either that's not sending the command to the GM or not getting a signal from the key even though the LED on the Key lights up.. I may make a pain in the neck out of myself repeatedly bringing this up but I can't see just forgetting about the whole system for good ... I have to think someone somewhere sometime had this happen and found the fix..

I've tried Battery Resets... taking the Neg cable off,pulling the GM and the RM... putting them back in and reconnecting the battery.. I've scoured the Web searching the topic and found no solutions... I've had a dealership scan the 20 pin connector and tell me to replace my front latches and actuators for a "Door Open" fault code... I've checked the wires for the receiver antenna in the Rear View Mirror which are ok.. I know the Alarm works because when I either disconnect that plug or remove the fuses under the back seat for the the Alarm goes off.. I get the feeling I'm going to have to place a call to BMW USA for some old time engineers in De who know the system because nobody has a clue here..