had my n900 o/c'd @ 900mhz permanently......

after running pr1.2 @ 900, my device got very unstable after a few wks..

it was all of a sudden also. it was unusable! then i think i rebooted and it wouldnt load past the 'dots'

i eventually found it was due to a corrupt emmc..

reflashed old f/w and emmc, then pr1.2...... worked again.

it may have been due to me o/c always @ 900mhz with unstable pr1.2 f/w and emmc was corrupt