for those who having deep sleep issues , try appling gps fix 2 - from here
It doesnt fix the problem :( Today after watching youtube and surfing net for about 2 hour i turn off screen and cpu stuck at 192mhz instead of deepsleep.
I also turned o...
The best way is flash stock X10a rom with FlashTool.
Stock X10a ROM: http://www.multiupload.com/SR8R1B5KII