acquired bb 9900 software version is 7.1 bundle 1149, 11 months ago but its now mulfunctioning in a away that it just goes offline even though it doesnt show,no messages or calls come in and i have either to switch off and on or remove battery and return in which it wors for a few minutes and again goes 'off line'.
when i do cellular network connection issues sometimes blackberry ready test passes and sometimes fails.
what could the issue be?
