Just a quick question guys, I'm a bit of a newbie to Android so forgive me if I'm being daft.

I'm on a SGS2 from DiGi under smart plan, but the battery life has been abysmal. So I'm going to flash it to the XXKH3 ROM. Obviously, this means I'll lose the Malaysia/DiGi specific CSC. Will this ruin anything, or will it be as simple as just re-entering the APN values?

Thanks.

Thanks for the quick response guys, I appreciate it

It's been a bit of a bumpy ride since I switched over to the "dark side" (used to have an iPhone ) but hopefully this firmware update will get rid of the annoying battery problems.

I'm just expecting it to last one day on medium use, with GPS off and 3G on for most of the day. That's not unrealistic, is it? Cause right now I'm only getting about 12 hours, with Android OS and Android System taking up a fair bit of battery. Flashing from 2.3.3 to 2.3.4 should at least help, right?

I defined my moderate use as:

1 FB account
1 Twitter account
Widgets: Engadget/weather/cnn
1 Gmail account
Skype
Viber
Whatsapp

Mostly set to push, those that require sync set for 1 hour, except for weather which is updated every 3 hours. Some intermittent use of games and GPS, but nothing heavy.

I think most people would agree that my definition of moderate is pretty alright.

That's basically the kind of battery life I'm hoping for. Fingers crossed!

+1

It's a pity battery technology hasn't quite been able to keep up with the advances in computing power and screen technology.

Another question, is there any way to name the phone, like in iPhone I could call it, say "PhantomThief's Captain McPhone" using itunes and it would appear when connecting to other networks and such. Is that possible with the SGS2?

Did a little experiment last night to see how much juice the phone uses when left to its own devices. I basically only left 3G/HSDPA on and switched off GPS/Wifi/Bluetooth and the rest. I also switched on BetterBatteryStats to monitor for any apps that might cause wake or partial waketimes.

8 hours 30 minutes later the battery fall to 85%, a majority of the battery taken up by Android OS and Cell Standby and nothing really standing out in waketime list. I'm assuming this is pretty much normal for an Android phone, correct?

If so, looks like it's time for a new charge schedule. I'm gonna start charging overnight so that I can start the day with 100%, because I don't think 85% is going to last me the entire day. At least not now while I'm still treating the phone like a new toy

Edit: Unless, of course, I switch off 3G as well. I wonder how much battery that would leave me with. Or maybe even force it to stay on EDGE, that could be even better. Sounds like it's time for a few new experiments

This post has been edited by PhantomThief: Aug 27 2011, 10:03 AM

Haha, yep, you just caught me before the edit. Sorry la, just woke up, brain not yet warm up

Gonna try to switch off 3G but use EDGE instead tonight, and then I'll try with mobile data off altogether on Sunday night. Should be interesting

That's interesting. How many people here use cases/screen protectors for their phones? I'm currently using a silicon case and matte screen protector, but it's kinda pissing me off. Very tempted to just use it naked, but I'm afraid it'll get scratched up faster than an idiot who steps on a cat's tail. Any experience from anyone using it naked?

I'm really damn tempted to bring my S2 around naked now, but I think I'm still too afraid at this point xD

Btw, I'm very tempted to root to get rid of bloatware, but I'm also quite afraid. Is there any simple and safe way to root for XXKH3 firmware?

If I follow your advice and I end up scratching my baby, will you buy me a new one?

On a more serious note though, how is litening rom vs stock KH3? Also, I'm assuming that flashing with litening rom will wipe the memory from my phone?

That's cause it's BetterBatteryStats, not batter. And you'll find it on the XDA forum with a download link there. Just google BetterBatteryStats and you'll find it

Gonna flash with Litening 6.1 now. God help us all.

Lite'ning ROM 6.1 successfully installed, along with SetCPU and Gemini App Manager to undervolt and freeze bloatware respectively

Sorry mate, not a clue.

Definitely. GPS is a gigantic battery hog.

Well, it all depends on how you use it and how well you take care of your phone. For example, I was previously on the iPhone 2G for almost 4 years, before I finally switched here to the SGS2. So I know I am capable of taking care of my phone. Also, I will be using my SGS2 as a wifi hotspot quite frequently, so data becomes quite important to me.

That's why I took the 2 year rm68 plan, because it's the best fit for me. YMMV

Here's the logic the way I see it:

The RAM is probably filled with data that the programs, including the Android system, requires at one point or another. So when you click "clear RAM", my assumption is that it will clear any non-essential data in the RAM, in other words, anything that isn't needed to keep the phone running is shut off.

Now over the course of the night, the phone may once again attempt to perform certain functions or procedures, but the data it requires is no longer contained in the RAM, and thus it needs to reload all the information once again, perhaps from the kernel or some other system files, back into the RAM. This would account for the consumption of the battery by the Android System.

As for exiting all applications, unless the application has been set by the user or is some rogue app that restarts itself, exiting them stops the multitasking while retaining the data needed by Android within the RAM. This would save on processing power while eliminating the need for Android to reload.

That is the logical explanation as I see it, please correct me if I'm wrong

That is some insane battery life, bro. Would you mind sharing some info/links about these apps that can prevent deep sleep? Cause even when I switch to EDGE overnight and having killed off a fair bit of bloatware, I still only get just about a day's worth of battery out of it.