Install Paxx12 Firmware and Enable Remote Screen
I won’t elaborate on this too much since it’s all well documented elsewhere. Here is the doc on how to install it:
https://snapmakeru1-extended-firmware.pages.dev/install
The doc on how to enable ssh access:
https://snapmakeru1-extended-firmware.pages.dev/ssh_access
Enable Remote Screen. Note, I think I needed to reboot the printer, and totally missed that in the instructions the first time:
https://snapmakeru1-extended-firmware.pages.dev/remote_screen
Download the Firmware Via SSH
SSH into the printer. You can use putty to connect to the printer IP. The default username/pass is root/snapmaker.
Connect your USB flash drive and run the command df -h to find the path to that drive. In my case, it was /mnt/udisk
CD to that directory cd /mnt/udisk but use the path you found above.
Go to https://github.com/paxx12-snapmaker-u1/SnapmakerU1-Extended-Firmware/releases and copy the link to the latest firmware bin file. Now run the following command to download it:
curl -LO <insert url to the latest firmware bin>
Go to the remote screen at http://<ip of your printer>/screen
Now go to the settings -> About -> Firmwrae Version -> Local Update and click on the firmware you downloaded. The screen will immediately disconnect, but should come back up in a couple minutes.