Unless you're living under rocks, you know already How to overclock the N900 but as i stated that these modded Kernels will make the about page say unknown for the hardware and software, so personally, i'll wait for the PR1.2 before overclocking mine...

Forget about that !

You'll just need to do some additional steps to bring it back so that you can still normally use automatic firmware updates in the future:

- launch X Terminal
- type sudo gainroot (you need the rootsh package installed)
- type apt-get install --reinstall mp-fremantle-generic-pr
- if asked for confirmation press Y and Enter
- when done reboot the N900

Now the Settings/About window will show correct version information and firmware updates will work as usual !

Via : my-symbian