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.
At least for a number of others, failed AMS firmware updates took replacing the main board in the printer to fix. After replacing the main board in the printer, AMS firmware updates were able to continue normally.
If you have this problem best to contact Bambu support. They seem to have been pretty responsive. They will want logs so might hit the wiki and see how to collect them.
With the number of these there have been, and I’m not aware of a single case where a firmware update issue wasn’t solved by replacing the main board, I have to wonder if there wasn’t a bad batch of main boards.
In a lot of the cases where this occurred, the user lost the use of the AMS unit(s) until it was resolved but resolution was pretty quick.
I don’t know if they were repaired under warranty or if Bambu has replaced main boards outside of warranty. If this is a warranty only kind of thing, folks might want to find a convenient time and try updating their AMS units before warranty times out.
I bought a X1C combo last year black Friday sale and my AMS units updated fine so maybe other combos bought then are fine too. Would be helpful if those with problems post when they got their printers so might be able to see how big an issue it might be and maybe get systems fixed before they time out of warranty - if this is only a warranty repair. I don’t know. If someone else knows…
I replaced the AP board and I didn’t. A lot of the Bambu spare parts come with a tiny tube of silicone glue and when you’re working on the printer you’ll find lots of connectors that have the glue on them. It’s meant to hold the connectors in place when the printer is doing its thing (vibrations) and also when it’s being shipped. I print a lot and I’ve never had one vibrate loose though. The challenging part of this repair is going to be the waiting when you’re done. Someone from Bambu has to change the AP board that’s connected to your account on their end when you’re done.