Guys if you wanna wake the screen with volume keys try this.i'm using it with b526 and works like a charm.do a wipe cache and dalvik only and install zip from sd.
All credits go to spirosbond who prepared this for stock rom.
though,i don't know if this works with other beta versions.
Sent from my U8800 using xda premium
Thanks for this I have been searching for a way to do this since I installed official GB. I am on 522 and can only guess that it should work with that as well. I have not rooted after GB install and have only standard recovery (I assume) is this how you did it or is your phone rooted and with other recovery? If i wipe cache/ dalvik cache what do I lose? Is it just app info and APNs etc
Fantastic! As you said works like a charm. Many thanks
By the way I am on Official 522, so works on more than 1 version