After I updated the software and firmware for my Garmin Montana 700, the AA battery pack no longer works with the unit. I have done all the troubleshooting through chat, and have been unsucessful after fixing the issue. The Device will not boot with the battery pack installed. I replaced batteries, cleaned terminals, tried soft resets, and have no success whatsoever. The unit still works with the provided battery that came with the unit. Has anyone else had an issues with updating their Garmin device that caused the battery to brick itself after doing so? I received no help from garmins chat support. They had me try and send my garmin file to their website, which is impossible, because the folder is 11gb in size, and you can only send 1200mb max file size. The support provided only suggested I buy an higher capacity battery, since the original works, and would not acknowledge the fact that this only happened after updating the device. Any help I could get from others with this issue would be greatly appreciated.