BC66 NB-IoT Module (DevKiT)

[ameero95]

Hi everyone,

I'm looking into using an old NB-IoT DevKit with the discontinued Quectel BC66 Module I received from a colleague of mine. Does anyone have any idea how I can still use this DevKit? Unfortunately, the AT command firmware does not seem to exist on the device anymore. The device doesnt respond with a "RDY" after the booting process. Any help is greatly appreciated.

Kind regards,
Ameer

[LubOlimex]

Try sending "AT" without the quotes and see if it responds. If it doesn't respond, try downloading the latest firmware, you can request AT command firmware from the Quectel forums, just start a new thread and request AT firmware for BC66, similar to this one:

https://forums.quectel.com/t/bc66-latest-firmware/5637/6

Then use Qflash to download it to the module

[ameero95]

Hello LubOlimex,

Thank you for your reply. I will write them and ask for the latest firmware. I actually managed to scrounge up an AT command firmware for the BC66 I found on the internet and flashed it with an old QFlash Tool (version 4.15) because I read that the new QFlash tools do not work with discontinued hardware. The flash tool says PASS at the end of flashing but unfortunately, nothing changed and no "RDY" is given out after the device boot up. I dont think the device is dead though. Any idea what could be the problem?