I am having an issue with the AVR GSM Cellular Development Board I
recently purchased. The board seemed to work ok in the beginning
using the battery power, but the power drained out pretty quick. Of
course I read the manual and attempted to charge the board using the
12v connection on the board which required me to have the BAT_E jumper
closed before connecting the source. The battery did not charge and
is now dead and the board is not responsive to anything. Another
issue that happened was upon attempting to connect the USB for
debugging it kept disconnecting when the power was on. Please advise, thank you!