You were right about waiting, still only 52%... but the most time consuming thing will be opening up the box again to flash OpenWrt.. what a PITA.
I should have posted here before trying to update, you guys are really helpful. What I was trying to achieve was changing the dial tone on the FXS ports with AT commands or adb, but I wanted to ask my question here with an up to date modem firmware...
Edit: not looking good, when I looked at it last it was at 98%, I came back and the state was DISCONNECT and progress 0%. I waited and eventually power cycled the router, now it's totally unresponsive, only the power led is on and I can't even get an IP from it via DHCP.
Edit2: I left it powered off for a while and now DHCP is working and the router is seen by the framework as Nordic B02. admin doesn't work as a password. I can't find the guide I used from this point on, it's been a couple of years since I did it. I remember I had to take it from B02 to B12 via OTA and it took almost an entire day. I'll continue tomorrow. If you guys have any up to date guide handy please let me know.
Edit3: with a fresh mind this morning I found the guide I had used, it was on an Italian forum, duh! :homer: 