Droid 2 Global SIM issue

Sr. Member

Got my Droid 2 Global 2 with an unlock code.   When I put in a foreign sim, it prompted for the code, I entered it and it worked fine.  However, when (in the US) I switch to GSM mode, it says there is no service.  Worse, it correctly displays "T-Mobile/TalkMobile" (the SIM is a UK Talkmobile SIM which in other phones roams fine on T-Mobile and AT&T) so it has found the network and the SIM, but is preventing me from using it.   On my Samsung Renown, things work fine with this SIM.


Any ideas?   In the past, we know that the Verizon SIM doesn't work on US networks, but what is blocking other SIMs here?



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