Originally Posted by fathi
Thanks.can you tell me how to do that?
FAQ article on Jl_Cmdr: How do I wipe the BlackBerry using Jl Cmder? - BlackBerryFAQ
See the sticky at the top of the Bold section with a link to the current OS and instructions on how to do it.
Follow the instructions and be patient. It can take an hour or so to update.
Make sure the device is plugged into the PC, not via a HUB.