[Q] Can anyone help with a corrupt file?

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http://forum.xda-developers.com – I somehow messed up the services.jar file under system/framework. I don't know if I deleted it or somehow edited it inadvertently but now my phone will hardly function. It does boot, but every app/process force closes. I cannot even access the task manager or make calls. Is there any way to restore the file, through clockwork mod or? My brother has the same phone so can I copy the file from his phone on the SD card and then stick it in my phone and update zip from sd? Except it is not a zip. Hmm... I am on a Sprint Samsung galaxy s2 Epic 4g touch Thanks in advance. (HowTos)