Error of App Close Main! During Start Up

You can fix the app close main error..

1) Open your filemanager/explorer
2) Go to c:/system/bootdata & delete FirstBoot.dat
3) Turn off phone & take out your MMC card
4) Turn on phone and put in current time/date
5) Wait for it to boot up then turn off phone again.
6) Put MMC back in and turn on phone.