Thanks for the quick alert I had actually installed Boeffla-Kernel 5.2-beta2 and the Google Play Services (NlpWakeLock and NlpCollectorWakeLock) was draining my phone like crazy - barely getting through a 17hr day of normal use compared to 4.1 with Perseus kernel which lasted me 24hrs or more.

Once I flashed this new Boeffla-Kernel 5.2-beta3, somehow it went back to normal

EDIT: Yah, I know it makes no sense

This post has been edited by tigerporc: Feb 13 2014, 12:22 PM

After root, install "LagFix (fstrim) Free" from Google Play, run it (trim /system /data /cache) and reboot. This will highly likely solve your lag problems. As for the battery drain, check that Google Now is disabled (under Voice Search)
And if still not satisfied by battery life, I highly recommend greenify app to greenify to hibernate any lesser used apps that have wakelocks as well use your wifi/mobile data in the background.

BTW since 4.4 not coming to SIII, Xiaomi Mi3 looks mighty attractive as a replacement if needed (Selling for SGD419 via Xiaomi Singapore online sales in March 7)

This post has been edited by tigerporc: Feb 21 2014, 08:57 PM

True but our smang fellow forumer here is just gonna root only and did not mention wanna install custom kernel Really big thumbs up to Lord Boeffla for a great kernel; pity to hear bout his stolen car. Really should buy his donation version of apps if can afford it guys

Am currently anti-Knox, so Samsung has really screwed up as far as I am concerned, they should just prepare a Knox enabled ROM version for enterprises to secure their phones and leave us consumers the normal unlocked bootloaders and normal ROMS. Samsung really is making the same mistakes that HTC made... {sigh}

This post has been edited by tigerporc: Feb 22 2014, 08:45 PM

Heh, mistakes the arrogant market leaders make lah

/begin rant
HTC's
H/W quality issues even for high-end flagship phones (WiFI etc)
Locked bootloaders (then unlocked with no warranty)
HTC marketing (just google HTC phone/mobile mistakes)

Samsung's
H/W quality issues (SDS)
SIM region-locks
Waranty Issues for Knox Warranty flag
Knox for all flagship phones (maybe not so relevant for normal users)
Samsung marketing - nothing so say, spending needed to keep up with Apple

/end rant

But in the end I have to admit, the masses are the ones who determines the success of these companies. Not the enthusiast or fan-boys (i.e. most of us here on this forum)

If not any bad apps, sounds like beginning symptoms of SDS (happened to me)

This post has been edited by tigerporc: Feb 22 2014, 10:04 PM

Well, I just lived with the random reboots, maybe twice or so a month (normally happens at night during charging so when I wake up, will see the SIM PIN lock) ... then if I remember correctly within 3 months, suddenly started freezing/hanging (tried to fix it during the weekend flashing all the versions of stock ROM - no joy). Freezes without 10 minutes of using any apps that uses WiFi (actually any app, but apps using WiFi freezes it fastest) Had to send it in for warranty. The motherboard got replaced to a new one without the insane chip.
Full story click the warranty replacement link in my siggy.

But mtxx suggesting bout the battery is the easiest explanation I suppose
Buy his batteries to test?

That sim region lock thing is really Samsung's plan to prevent grey/parallel imports and does not work properly too. (It is the NOT the US sim carrier lock, that one is straightforward - after contract period over, can request the unlock to be done by the carrier)

This post has been edited by tigerporc: Feb 23 2014, 10:57 AM

No offence bro, I really do believe also battery problem is the easiest explanation.

Samsung should just come out and confirm it already, will it be out or not

Just to reconfirm.. this post by mtxx does not help? (or is not a solution?)

This post has been edited by tigerporc: Mar 17 2014, 06:38 PM

Doesn't seem like due to updates or flashing; so simplest explanation is stuck power button?.
Sent it for warranty claim or fix (at your own risk - google for videos showing how to hit the side of the S3)
Good Luck