Tchibo registration problem

[mgol]

Originally Posted by inquisitor

I've just tested the USSD-menu (*104#) with my Tchibo SIM and I could access it flawlessly. Anyway suppose your problems are either caused by some component on the O2 network, as the error message comes from Tchibo or the USSD-menu is inaccessible from roaming networks.

I doubt it. The problem has started in France but continued in Germany, where I was connected to O2. Apparently something is wrong with my SIM. But how can I found out it without calling O2 or Tchibo ?

Originally Posted by inquisitor

According to this German wiki Tchibo SIMs used to remain active for 365 days after the last recharge, but since May 2010 they are active infinitely.

Great, thanks !