[Q] Help please...changed LCD density and now in boot loop. Can't ADB push...

Hi All

I'm running the stock Jelly Bean (4.1.2) on my Note which is rooted.

I changed the LCD density by editing the build.prop after reading changing it to 213 would make it like the Nexus 7 interface. However, I'm now in a boot loop.

I have a copy of the original build.prop but I can't adb push it to my Note because I get a permissino denied error. If I try to adb root it tells me I can't do it on production builds and remount tells me the operation is not permitted.

Any chance this can be sorted without me having to flash the ROM again?

thanks in advance

EDIT: I originally flashed the ROM with Mobile Odin Pro and injected root. I don't really want to flash the ROM again as I'd lose root. I have the backup build.prop on my hard drive and also on the external CD card in my Note. Can I use adb shell / su / mount to copy it over?