It might be the old question, sorry for bothering but I really need help on this. I was away from crack berry for a while so didn't know the solution.
I updated my z10 yesterday with above update. Everything is fine but the battery is draining so fast also the charging speed has became low in comparison with old OS. I dont know how the default power saver works as I don't see any output with that. Please help
Damn..

oldest OS-10.2.1.537 - Indian user