S2 boots once, then stalls

Hi guys,

I successfully followed the advice on this thread (http://forum.xda-developers.com/gala...od-s2-t3189884) and I have installed CM12.1 's nightly from 29/8.

I boot in once, no problem. But on the second boot the phone bricks. The only way I can get into the system again is to load Philz kernel again and reinstall. But after the second boot the phone bricks again.

Any ideas? It may be the nightly, but even updating to the latest (31/8) didn't fix this.

I can get the CM10.1 stable to work fine, but that drain my battery faster than I can charge it.

I'd like to use 12.1, though: am I just doing something wrong that causes the bricking?

thanks,