Modem Firmware for GL-E750

Hey there, I have a MUDI that can’t connect to AT&T - there’s a thread that says the old fix isn’t needed but it seems that’s related to a firmware update on the modem. Router connects just fine to T-Mobile BTW.

In the control panel it’s showing Modem Name EP06ALAR02A08M4G

Turns out there are instructions for doing this onhttps://docs.gl-inet.com/router/en/4/tutorials/upgrade_quectel_module_software/

I followed this tutorial for my Mudi E750v2 but stayed blocked at 99%:
Config:
Router Firmware 4.319
Modem Firmware flashed : EM060K: https://fw.gl-inet.com/download/EM060K-modem-firmware/EM060KGLAAR01A12M2GA.zip

...
[052.358]: upgrade progress 99% 118033380/118279820
[052.359]: send finished
[052.360]: <log value="Finished sector address 14592"/>
[052.362]: <response value="ACK" rawmode="false" />
[052.362]: <program PAGES_PER_BLOCK="64" SECTOR_SIZE_IN_BYTES="2048" filename="..\sbl1.mbn" num_partition_sectors="121"  physical_partition_number="0" start_sector="0" />
[052.364]: <log value="INSIDE HANDLE PROGRAM"/>
[052.365]: <log value="start_sector 0, last_sector_address 121"/>
[052.366]: <response value="ACK" rawmode="true" />
[052.366]: send ../sbl1.mbn, filesize=246440
.
gl_modem AT AT+QGMR

returns:

Modem is not exit.Please make sure bus.

I did a factory reset and retried. Same result.
Now my modem is not detected any more. I cannot restore the modem firmware at 100% so my router is unusable with 4G!

WHAT SHOULD I DO? Thanks for your help.

Perform the upgrade again

I already did it many times and today again, but same result.
Could the modem be bricked??

modem firmware?

Yes i have tried to upgrade the modem firmware.,without success. I am afraid the quectel 4g modem is broken.

What error does it report?

See the output in my first post in this thread. . It stops always at this last line, like frozen. I have to ctrl+C to get the hand again even after long minutes :

[052.366]: send ../sbl1.mbn, filesize=246440
.

With one dot instead of three like on the upgrade tutorial.
If I can change the modem or hard flash it, with a bit explained , tell me. It is OK.

QFirehose-ar9531-sha256-7383f4 or QFirehose
Which one did you use?

QFirehose-ar9531-sha256-7383f4

Try anothe

Great! That worked with QFirehose -f EM060KGL....! Thank you!
But What a confusion! Why is the Upgrade Quectel Module Software - GL.iNet Router Docs 4 making us install the QFirehose-ar9531-sha256-7383f4 or QFirehose version???????

Replace QFirehose-ar9531-sha256-7383f4 with QFirehose

YES. IT WORKED DIRECTLY, but:

Because of the outdated command on the gli doc page:

QFirehose
QFirehose Version: QFirehose_Linux_Android_V1.4.7
[000.001]: Builded: Apr 9 2023 12:27:46

QFirehose-ar9531-sha256-7383f4
QFirehose Version: Quectel_LTE&5G_QFirehose_Linux&Android_V1.4
[000.007]: Builded: Apr 14 2022 04:54:50

I spent several hours trying with this outdated QFirehose version of the doc
YOU SHOULD UPDATE YOUR DOC! I lost many hours because this old doc.
Thank you although again

I'm sorry, but you're the first person this has happened to

Thank you for considering my problem! Sorry too, I am a newbie with modem firmwares...

The version of the QFirehose tool in the documentation is really old
I will try to update
thank you

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