MC7304 locks up after a few hours


I have been testing the MC7304. I am simply making and recording calls every few minutes (a few per hour) and after 12 hours or so this happens:

  1. USB audio - no audio is received.
  2. if I perform a reset (AT!RESET, AT+CFUN) then the device gets stuck resetting (+CFUN: 6)
  3. The only solution is a hardware/power reset. This won’t be possible in a production environment.

Are there any known bugs in this area? Is there an update or even a workaround?

Model: MC7304
Revision: SWI9X15C_06.03.32.04 r28324 CNSHZ-AR-BUILD 2015/05/25 01:09:15


Looks similar…