try to check the permission level see if papago allow to use location services?
you may required to reboot your phone ..
your location ? klang valley , KL / PJ area? or?

anyways, this is why i said previously , do not update to the Stable ROM KK,
few user success or without issue doesn't mean it is perfect!
you go and read the forum in chinese version, or MIUI forum, ton's or dozen of complain !

please think twice or forth before you choose to upgrade it.

and to revert back from KK to JB it is very hassle..

my humble suggestion again... wait for another 2 week first !!!

i don't have facts or proof to support above statement, just based on my guts feeling, you can buy it or dump it!

When I told my clients that you cant reach me by phone today... he did this

I'm wondering that you guys that have call drop problems updated the phone OTA or via desktop? Mine seems fine (Maxis user), the only thing is that the GPS works at first, but once you turn it off and turn it back on, it goes weird. Loading GPS seemed like forever, especially in Waze. Still haven't find a way to resolve this, maybe I should do full ROM download and install?

I think location matters.

You are in Klang Valley I suppose? Some in Penang didnt have such problem. He's in Sabah I think if his location is correct.

Right now Klang Valley is definitely affected.

seri kembangan , sungai besi , bdr sunway = Klang Valley