NR7101 Module Firmware Upgrade Fail

Mayone78

Hi everyone, could anyone tell me a working method to downgrade from the LTE version ZYXELR13A02 - ZYXELR13A04 to the RG502QEA_R11A07-ZYXELR13A02 version?
Thanks so much to anyone who can help me.

Arona

did this happen to somebody? LTE module not shown on device.

DOES

https://community.zyxel.com/en/discussion/comment/70876#Comment_70876

I have the same version. Did you find an upgrade or downgrade path. Attempts to apply the published module firmware eg. 02-04 feils…

Arona

https://community.zyxel.com/en/discussion/comment/74942#Comment_74942

did you check the log file?

DOES

https://community.zyxel.com/en/discussion/comment/74975#Comment_74975

no I did not, I half expected the failure since I did not match the from-version. I suspect I will need a custom update from Zyxel, but from what I see they are not very helpful with second hand ISP equipment…

Arona

correct!

I 100% agree with you..