You can fix the app close main error..
Read Carefully 'App. Closed Main' Tutorial :
- Open your filemanager/explorer
- Go to c:/system/bootdata & delete FirstBoot.dat
- Turn off phone & take out your MMC card
- Turn on phone and put in current time/date
- Wait for it to boot up then turn off phone again.
- Put MMC back in and turn on phone.