Modem stuck in firmware update

IoT Modules LTE Standard Module
1

Hey there,
I’ve recently spoken to Yann who gave me a firmware upgrade package for my EC25-E. I’ve started the firmware upgrade about 15 minutes ago and it’s still suck updating. It’s currently at send NON-HLOS.ubi and it’s not progressing.
I’ve just decided to abort the upgrade there and as expected now the modem won’t even respond to another upgrade attempt. Great.
Any idea how to proceed from here? I’ve found some instructions to reflash the modem via fastboot but that’s still a stupid issue…
Thanks!

Edit: yeah the modem doesn’t even come back after a power cycle. I done fucked it didn’t I

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since I’ve reached the max amount of edits:

  1. The usb interfaces in /dev/ttyUSB* don’t appear anymore
  2. I don’t think I can flash the modem via fastboot since I cannot open a serial connection to the modem. That seems to be one of the non-standard features of the mini-pcie pinout, and I can’t access those pins while the modem is seated into the mini-pcie slot.

Seems like a surprisingly unrecoverable situation

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the usb serial console has luckily reappeared. Wanted to get into EDL mode but it’s just not doing it.
If I just touch VDD_EXT and USB_BOOT together while booted nothing happens at all.
rebooting my system afterwards and as such also power-cycling the modem doesn’t work either.

Are there some reset pins on the modem that I need to use?

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finally figured out how to get into EDL mode. EDL mode is in fact QDL mode on the modem.
I had to first short VDD_EXT and USB_BOOT together, and then suspending and resuming the system actually made the modem visible.

Then, finally, the god damn firehose flashing utility worked. What an endeavour.

Let’s hope it doesn’t shit itself again during the flashing process.

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Note for the previous reply: You apparently need to suspend a second time after the modem pops up in lsusb otherwise it won’t respond to the hello request by the firmware flasher

yeah so I think I need help with this one. The firmware upgrade and flash utility is somehow really bad at doing exactly that.

I’ve tried like four flashes now and each time it gets stuck mere seconds after starting a flash.

First time it got stuck at five dots, second time at two, third time at one and now it’s stuck at three dots.

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left another update running for two hours and got zero progress after the initial hang (this time it randomly made it to the ubi file again, it’s pretty random how far it gets before it dies). it’s definitely not finishing. the firmware update tool seems to have some issues

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is there a way to enter fastboot mode in EDL mode? that would allow me to bypass the flasher…

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I’d like to avoid killing the internal flash or causing other means of damage though trying too many firmware flashes.

Any idea what else I could try?

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The main thing keep copy of QCN to avoid losing the network …
The great thing ,you figured how to do EDL mode by your self
The funny thing is Quectel didn’t support in this post

As I know you can’t bypass the flasher

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really disappointed about that. I’m a paying customer and received zero support for something that the officially supported flasher tool does wrong.

At this point it seems that all I can do is try to flash over and over again until I finally get a lucky flash and get that stupid firmware onto the modem. Had a flash that got up to fourty percent earlier today, but since then it’s been getting stuck at the very beginning again.

Edit: And yes, I have unloaded the qcserial kernel module, and yes, I have stopped ModemManager. This is not my fault.

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it’s actually amazing. I’ve just spent hours installing windows just to try the fucking windows flasher and now I’m told that I need to contact support to download the mother fucking windows driver.

Fuck this place.