Argh, I’m very sorry that this happened to you! I’ve now written 2 firmware updater scripts that you can execute on device. I’ve tried to cover all eventualities but it’s still possible I didn’t think of something, so if anything fails, please report back and I’ll fix it.
First, the System Controller update (on old FW, this probably requires toggling the standby switch after the update to get everything back to normal, and if the charger doesn’t want to charge, unplugging and replugging the batteries once):
curl -sfL mnt.re/update-pocket-sysctl | sudo bash -
Then, the Keyboard/Input update (probably after a power cycle):
curl -sfL mnt.re/update-pocket-keyboard | sudo bash -
Note that the dash (-) at the end is important. Also, disclaimer: it’s dangerous to pipe stuff from the internet to sudo bash, it’s best to read the script first. These one-liners are merely for convenience.
This will update everything to the latest release 20250429. In the future, from here you’ll be able to update through fwupd / Gnome Firmware as well.