Disable nRF9160 Downgrade protection

[CWallach]

After Downgrade protection in the NRF9160 has been set with AT%XPRODDONE=1,  switching it off with AT%XPRODDONE=0 returns ERROR.   Is there a way to disable downgrade protection so that the %XRFTEST command will work?

Thanks

[Øyvind]

Hello, 

Please issue AT+CFUN=4 before issuing AT%XPRODDONE=0, this worked for me.

If this did not work, Can you please provide some information on what modem FW version you are running?

Kind regards,
Øyvind

[CWallach]

Its not working for me. AT+CFUN=4 returns OK, AT%XPRODDONE=0 returns ERROR.  Some info:

%HWVERSION: E244

%SHORTSWVER: nrf9160_1.1.1

nRF9160-SICA

Thanks

[Øyvind]

Sorry for the delayed answer. I have forwarded your issue to our internal team. Will get back to you.

Kind regards,
Øyvind

[Øyvind]

Hello, 

Sorry, the documentation has not been sufficient for this command. The XPRODDONE command should not be used as you have indicated. This command should only be used when production is done. When first used, the command cannot be re-enabled.

We are sorry for any inconvenience this may cause, and will replace the board if needed. 

Kind regards,
Øyvind