Upgrade Frimware on RMU500-EV

IoT Modules 5G Module
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1

Hello!
I want to upgrade the firmware of the Quectel RM520N-GL which is placed on the RMU500-EV. The module is placed with a layer of silicon on Evaluation Board which makes it not so easy to force the download mode via pin bridging.

I tried the FOTA method but it wont work - same with the at+boot=1 commando to set the module in Download mode.

Any tipps on how to upgrade it?

Thank you in advance!

2

Dear @Sebkl
Do you try to contact the EVB to PC and use Qflash to upgrade?

3

Yes I did and QFlash wont recognize the Firmwares .zip file. The Internet suggested, that the modem is not in the correct download mode.

4

Dear @Sebkl
Please check user guide, you need to unzip the file and select corresponding file.