How to write PM file using Advance box without damaging simlock area

damaging simlock area is a very annoying when we accidentally damaged it.
But now here's How to write PM file using Advance box without damaging simlock area.
1. Select Nokia Servic Tools
2. Choose BB5 option
3. select PM Maintenance tab
4. Check Write Full PM option
5. Click PM Authority
6. After its done, Hit process
7. Select your modified PM without (308-120)