I am currently on firmware 01.08.00.00 on the X1C and 00.00.06.40 on the AMS. I am not able to update the firmware. It stays on 0% for a while and then I get an update failed message and to restart the printer.
I have tried all of the following:
Replaced the SD card
Perform the upgrade from the Bambu Handy App
Perform the upgrade from Bambu Studio
Perform the upgrade on a Wifi hotspot from my phone instead of my home Wifi
Did you try it from the screen on the printer? If that doesn’t work the other thing I see a lot of people saying is just to keep trying. I’m wondering if the servers that host the updates go down sometimes? I’ve seen people say it worked hours later and I’ve seen people say it took a day or two.
It looks like you’ve tried all fixes people normally do. Is the printer able to read the new SD card ok? Could you format it from the printer screen? I would open a ticket with Bambu just to make sure it isn’t something on their end causing it.