For backup AP cg you can use telnet or mpkg with commands
cp [device] [output_file]
cramfs (34, 37, 41,42,43): /dev/roflash*
jffs2 (35,36): /dev/mtdblock*
kernel (33): /dev/mtd7
bootscreen(39): /dev/mtd11
bootloader(30): /dev/animation
For backup your BP firmware you can use profile for FB3:
[FB3 Profile]
ID=Rokr E2
UseLdr=0
RamDld=E2.ldr
Addr=03FC8000
Jump=03FE7FF7
[Code Groups]
CG1=10080000-102E4547
CG2=10390000-103FFFFF
CG3=10040000-10066E27
CG4=10020000-1003FFFF
CG5=1000F000-1000F297
CG6=10010000-1001FFFF
CG7=10350000-1035FFFF
CG8=10000000-1000FFFF
CG18=10330000-103307FF
with BP loader RDL1 from any firmware.