Yesterday I discovered my EDGE indicator on the BB had changed to edge, then GSM. Today the same thing happened. First got a 'sim not registered message', then a GSM indicator and only hours later, after another reboot, got the EDGE back.
Obviously BIS services did not work for these hours.
Phoned the SP who said MTN had reported a few problems in the last few days. Anyone know about this?
Today I saw it on a colleague's BB - happened at the same time as mine - and he has a different SP.