Hey! We are using two EM9191 5G modems together with an Amarisoft Callbox. Both were working fine. Due to project requirements we need to use band N40 which is listed as supported in the EM9191 technical spec. AT!BAND=? does not list n40 as supported. I am not sure if that is due to the old firmwa…

Upgrade of old EM9191 firmware and band N40 support

jyijyi June 14, 2022, 12:37am 2

I have a backup file in my PC:

EM9190 . EM9191 fw problem