If you ever get the "App. Closed Main" error when you bootup, this will fix it.

Using your file explorer go to e:\system\programs
You will see some various files in there - but we are just gonna concentrate on the .exe files.
One or (some) of them are giving the error when you bootup.
Click them one by one and if it gives you an error, just delete it.
You can do this if you get any other error during bootup aswell.


App Close Main error.. (drugi nacin):

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.