SOLVED [soft brick]-[need help] ---Edited
I have a Atrix 2 MB865 which is not a AT&T phone.. It was on ICS before..I rooted it,flashed custom recovery and everything went smooth till here.Then I tried to flash carbon 4.3 unoffical rom through CWM recovery.. Got a message that flash was a success but when I rebooted I got stucked in bootloop.. I tried flashing a stock rom using RSD lite in fastboot mode but everytime it get stucked at "7/20 rebooting cbt.bin fail".. Any help will be greatly appreciated.
Recovery mode is not working and phone is opening is just fastboot mode and no matter what stock rom I flash (ICS or GB) it is stucked at that 7/20 rebooting step and I get a FAIL message... again I say any help will be really appreciated.
EDIT:I can enter stock recovery... will this help???
The above scenario was my problem yesterday and after a lot of browsing and understanding the basic concept I was able to recover my phone.I want to thank to all the Atrix community group for helping me out and providing very good and accurate set of instructions. For me I come from a samsung background so dont have any much knowledge about Motorola chipset but again thanks for the helpful threads/post I was able to recover my phone.
SO THIS IS HOW I RECOVERED
As I mentioned in the above scenario that I was able to enter in fastboot and Stock recovery mode but flashing a stock rom (no matter ICS or GB) wont work because flashing failed in RSD LITE (7/20 Reboot cbt.bin FAIL).
I had drivers and I had antivirus turned off and I have met the every requirement that is favourable for RSD lite to flash stock rom package to my MB865.
Then I saw this THREAD
,all thanks to @alteredlikeness
He proposed a menthod of flashing firmware without using RSD Lite and it WORKED!!!!
He provided a batch file package and told to extract in your FXZ folder(extracted Stock Rom folder).
As told the device must be connected in fastboot mode to PC and then the batch file should be run ... I followed all the instructions carefully and took a while to run the batch file but in the end it flashed everything and I recovered my phone.
Just in case if anyone has met the above mentioned problem try this method .. It seems to be working for both AT&T and NON AT&T MB865 phones.
My Phone:Samsung Galaxy SL GT-I9003
"THERE IS NO FATE BUT WHAT WE MAKE"