Hi Shantanu, I was trying to backup my AP & BP. http://www.motorolafans.com/forums/a...-firmware.html These are the steps i followed to backup BP 1. Downloaded all files and installed python(C:\te). 2. Copied loader_for_ramldr2.bin ,putusb.py into c:\lte 3. Installed libusb . It detected my ming and gave some information. 4. Installed pyusb . it found the directory where python was installed and installation completed. 5. went to cmd prompt and launched python console. 6. import putusb --- successful. 7. put my ming in BP passthrough mode and connected to usb port. 8. dev = putusb.MotoUsb() ---- I am getting an error " AttributeError: MotoUsb instance has no attribute 'dev' I don't know what i have done wrong.Any suggestions. Note that I am just trying to backup the generic firmware i have so that I can post it in the forum.