i had 2 questions, kindly assist :
1. i cant update my bb 8900 firmware. my phone firmware is on tmobile
(shud be from germany cos default language is dutch) - 4.6version, i downloaded 2 firmware :
8900jAllLang_PBr5.0.0_rel760_PL5.2.0.42_A5.0.0.461 _Maxis & 8900AllLang_PBr5[1].0.0_rel1168_PL5.2.0.67_A5.0.0.681,
1st one is Maxis operator cos i live in Msia, the 2nd one was tmobile UK. after installation, i deleted vendor.xml n open loader.exe in C:\Program Files\Common Files\Research In Motion\AppLoader.
when press next, i can see a box with messenger, press next, a box said no actions are required. i press advanced, saw 2 box but 1 check box was greyed out so i just tick the one. press next, i select do not automatic backup, n press finish. it run for a while n say "Your device's software has been updated successfully.", but i'm still on version 4.6? may i know which step i had left out?
2. i had another bb8900 with trackball not functioning after a while, i took out the mainboard n reassemble, it will be ok but trackball not functioning again after a while. i replaced trackball n trackball sensor board but still same. problem only solved after i replace the motherboard. anyone has some experience on which part i shud troubleshoot on the mainboard? or is it firmware problem?
thanks for looking into my post, i'm a beginner in repairing blackberry.