1) Write FW MAIN and FS
2) Backup GDFS from the phone
3) Write GDFS to the phone
4) Transform Brown To Red certificate or viceversa

And all with DCU-60 and FARMANAGER+ SEFP plugin.

How can WE use that?!

UNLOCK locked PONE
If you have branded and locked phone..and if you unlock it at a service centre.. you might be pasible to lock the phone again because SEUS recognize by IMEI that you have an phone manufactured for XX operator.
BUT!! if you make backup of your unlocked phone gdfs... you can always write it back and bring the phone to the state where was UNLOCKED. (GDFS contains locks and user info's)
Whit FAR+SEFP 00.10.50
a) flash original GDFS
b) FLASH MAIN
c) FLASH language
enjoy!

REVIVE a dead phone
If you have an bricked phone and you are bright enought to backup your gdfs (GDFS contains locks and user info's) then you can resurect your phone by doing this:
Whit FAR+SEFP 00.10.50
a) flash original GDFS
b) FLASH MAIN
c) FLASH language
d) remove the battery, reinsert battery after 10 sec and start Davinci client
e) with Davinci 13.7 flash it with R1N035 Firmware .DVT
f) After all complete's with OK.. and your phone is ALIVE... then you can flash it with whatever you want as FW.

WARNING :if you want to flash another GDFS from topsony or whatever... don't use latest Firmware revision.. try old ones...because from R1BC-up SE prevent changing the IMEI by 3rd aplications... (and gdfs contains that kind of informations) and you use davinci.. wich is 3rd aplication.