Use this flash if you are on stock 372 phone and you are going to flash any other MP. It is very important step - else you can kill your phone!
This is Code Group 7 only so it will NOT change your Bluetooth address!
Note: after flashing this shx file your phone will deny to turn on. That is normal - do not panic! Just turn your phone in bootloader mode by *+#+ON and flash over the shx file of the Monster Pack that you choosed