Zapped 771xv

I had a 771xv professionally installed in my 2000 F250. I purchased a second transmitter which worked fine for the past year. I recently got a 791xv professionally installed in my car with a second remote. I wanted to take one of each type of remote and have it for each vehicle. I zapped the 771xv with a bitwriter to remove the remotes from memory and went to install one of the original remotes as per the installation instructions. I opened the door, turned the key to the on position, and then pressed the valet/program button to select channel one. Nothing happened. The LED did not flash, no siren output. I pressed the valet/program button a second time and held, and pressed the lock button on the remote. Again, nothing happened the LED did not flash, no siren output.

Any suggests on what I'm doing wrong, and how to program the remote to the 771xv? Also, will I have the same problem programming the 791xv? I did not do anything with that one since I could not get the 771xv to work.

It is not locked. When it is Zapped, it would also put it at the factory default settings. That would also unlock it, if it was. I did verify that it is not currently unlocked. The valet switch does work. It allows me to put the alarm in valet mode, and take it back out. It is currently not in valet mode. I believe that it is not suppose to allow you to program the larm in valet mode. I did try both ways though.

Correction:

It is not locked. When it is Zapped, it would also put it at the factory default settings. That would also unlock it, if it was. I did verify that it is not currently locked. The valet switch does work. It allows me to put the alarm in valet mode, and take it back out. It is currently not in valet mode. I believe that it is not suppose to allow you to program the larm in valet mode. I did try both ways though.

I tried disconnecting the batteries (it's on a diesel truck) for 10 minutes. It is doing the same thing. No lights, or chirps.

I tried both doors open, right door only, left door only and even both doors closed. All have the same results.

As far as the "locked" transmitter, I went back and purposely locked it and tried it that way, then unlocked it and tried again. It still has no lights/chirps after pressing the valet button.

I read in one of the forums that the remotes would work on each, but at this point, I am just trying to get it to work as it did before I started. Luckily, I did not do anything with the 791xv alarm.