Xenolphthalein wrote:I am currently working on a programm which (hopefully) allows to downgrade the firmware (mini and jr), using original code from xyz ware. But do not expect a release in the coming month. Progress is pretty slow, because i have not that much time for it and the code from xyz is pretty bad.
Not that downgrade will help but anyway. Noticed a interesting thing with my Mini.
If I hold down the button/led while turning on the power the led turns white after a while and then I release the button. The led remains white and if I connect it to my computer with USB-cable it shows up with firmware version 1.0.1 and a serialnumber that is mostly zeroes.
Xyzware prompts me to upgrade firmware which I can do but it does not exit the white-led mod and still identifies as 1.0.1 after upgrade. When I then powercycle the printer it goes back to firmware 1.1.4 and the real serialnumber and (sadly) still remembers my blocked NFC-card.
I wouldn't be surprised if this "recover mode" would allow for a firmware downgrade by replacing the firmwarelatest.bin file and do an upgrade but since downgrading won't help us I haven't tried.
Not sure if this is any help, I was hoping that it would reboot as factory reset with an empty blacklist but sadly it did not. Tried it twice. Once with the MacOS version of XYZware and once with the windows version.
However, I've got a feeling that this is some kind of recovery firmware that can be used to restore firmware on bricked printers after failed firmware upgrades.