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inquisitor · 21-10-2010, 19:34

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.
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.

	(#55)
inquisitor (Offline) Senior Member Prepaid Professionist Posts: 1,399 Join Date: 15 Nov 2006 Country:	21-10-2010, 19:34 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. 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. terminals:* Samsung: Galaxy S5 DuoS (G900FD); BLU: Win HD LTE; Nokia: 1200; Asus: Fonepad 7 ME372CG; Huawei data: E3372, Vodafone R201, K3765, E1762; postpaid: O2 on Business XL; prepaid: DE: Aldi Talk, Lidl; UK: 3; BG: MTel, vivacom; RU: MTS; RS: MTS; UAE: du Tourist SIM; INT'L: toggle mobile VoIP: sipgate.de (German DID); sipgate.co.uk (British DID); ukddi.com (British DID); sipcall.ch (Swiss DID); megafon.bg (Bulgarian DID); InterVoip.com