I got this error after a software upgrade, I've look across the forum and found nothing useful or not as a walktrough as I want since I'm not that techie so is there anyone who can write me a simple how to get rid of this I'm kind of desperate just bought the unit and thougt that it will be a walk in the park to upgrade de software!

Please help!!!!

Now it seems like i've been able to install it, but I get an infinite hour glass any help???

it finally got back!!!

But is there anyone who can tell me if it's because I've tried to install the Rogers software instead of the T-mobile (my BB is unlocked but T-mobile branded and I use it with Rogers).

An answer will be helpful because I might try to reinstall Rogers!

543: VM_FS_MISMATCH: Incompatible Java filesystem installed

The VM detected that the operating system binary is different from the operating system binary used to create the Java file system. This means that the Java native methods may not be linked properly and as such, the integrity of the system cannot be guaranteed. The system can be recovered by using the VM DLFX and DLPS commands to delete the fixups and persistent store. This will clear all data and fixups and let the filesystem re-link to match the new operating system binary.

Note: The recovery order is:
Delete fixups
Delete persistent store
Reset device

Try a full system wipe, followed by an OS install.