Guida | Sbrandizzare Zyxel VMG8825-T50K Tiscali

Maybe it could be possible to manually extract the 12-digit code from the 36-digit one. A too simple example: have you tried to check if the 36 digits divided into 3 groups work?

2501000E0900 13009C030490 330691452269

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I hadn't tried that, but I just did. Unfortunately, it doesn't work. I tried the codes both separately and combined, but it didn't unlock additional options in the bootloader.
Alto Basso