I tested the R10 firmware and it is fine, the UART does not go to sleep after 5 seconds, so no need to wake the modem. That is great, but I could not update through FOTA, only manually by downloading the .exe file and using the MangOH KIT.
When I got to AirVantage and select a registered system like:
IMEI/ESN: 353635110527922
Serial Number: 7T1523323203B0
in the install bundle drop-down there is only release 6.2 and release 8 (which is currently on this modem). Why is R10 not available on AirVantage. We can only update our remote stations through FOTA.