2720a-2b RM-520 v8.62 successfully convert to RM-520 v8.20 and unlocked by cyclone with procedure...
1. Box: Cyclone Box with DCT4 plus activated
2: Cable: UFC Cable set to 5.1k
3. Flash phone using RM-519 v8.20 firmware to downgrade
= download the firmware at cyclone support site =
4. Write PM file
= download PM file =
here
5. Unlock and repair BT if necessary
6. Do hardware modification
Here's the logs:
Phone unit:
Flashing:
Write PM:
Unlocking:
Pinout:
Hardware Modification:
= Make a jumper and follow the red line =
Finish Product:
Hope it helps... thanks...