[DataCentre]

I just went to upgrade my BB 8100 Pearl OS from 4.5.0.18 to 4.5.0.37. Everything was going just great like my upgrade to .18, but then there was an error during the muli-load. So my upgrade has failed. My BB has no OS on it and I can't get anything to install. All it shows is a doddle on the screen which is saying that there is no OS installed.

Please help. What am I to do now?

[penguin3107]

How do I wipe the BlackBerry using Jl Cmder? - BlackBerryFAQ

Then reinstall the Handheld OS.

[DataCentre]

I'm trying now to just load the CORE files into the phone without backing anything up. I'm hoping that this will do the trick.

UPDATE:
Ok...I've wiped the device and reloaded the CORE OS. Just waiting for the reboot as the install was successful. Now just have to install the rest of the stuff, and re-sync and I'm good to go!

Thanks.