Author Topic: Samsung Galaxy S2 (Read 3164 times)

Clannad_92 · « **on:** March 20, 2012, 03:22:22 AM »

hi minna...
yesterday my father just bought Galaxy S2 for me...and im gonna tell you that this is the first time im using other smartphone besides Nokia...

okay, first question...how to know if the sim is connected to the internet? and is there any simplest way to connect to network rather than Setting>Wireless and network>mobile network>use packet data?

second, how long the batteries if going online all days staright?

hope that some answer ASAP...thanks

Bob2004 · « **Reply #1 on:** March 20, 2012, 10:06:14 AM »

That's an Android phone, right? You can tell if the phone is currently using the internet connection because there is a little icon in the top right with two arrows to indicate usage, beneath a letter indicating the network type.

As for turning the net connection on and off, I'm honestly not sure where this "Use packet data" option is. On my phone it's just "Settings -> Wireless & Networks -> Mobile Network" to toggle it on and off. There's also a sub menu with settings to disable mobile internet when roaming, and to toggle "always on mobile data" - which basically prevents anything on your phone from connecting to the internet unless you manually tell it to. So you don't need to worry about Facebook or something using up your bandwidth downloading status updates.

As for batteries, online doesn't actually use up that much extra battery, so don't worry about it too much. Though it depends on the type of network and the signal strength. Obviously it depends on the phone too, so I've no idea how long yours lasts.

Clannad_92 · « **Reply #2 on:** March 20, 2012, 12:28:22 PM »

thanks for letting me know...hmmm, looks like i have to navigate through to on/off mobile packet...

okay, one more...
how to exit a program? do i need to close it via kill i task manager? or just hit back button only and leave it?
or can i exit from a program by using middle key(home?)?

ayakashi · « **Reply #3 on:** March 20, 2012, 01:41:39 PM »

Quote from: Clannad_92 on March 20, 2012, 12:28:22 PM

thanks for letting me know...hmmm, looks like i have to navigate through to on/off mobile packet...

okay, one more...
how to exit a program? do i need to close it via kill i task manager? or just hit back button only and leave it?
or can i exit from a program by using middle key(home?)?

Hitting home should not exit the program, but you should be able to exit using a back key. There is no need to kill programs, in fact, task killers can create more problems than they solve. Just leave it to the OS.

TIP: hold home button for a couple of seconds to get a list of recently used apps.

Bob2004 · « **Reply #4 on:** March 20, 2012, 08:42:30 PM »

You don't ever need to exit a program, Android handles all that by itself. It kills off programs as and when needed, and it's best to just leave it to deal with it the way it wants to. If you really need to stop a program you can find it in the application settings section and use "force Stop", but that shouldn't ever be necessary.

Some programs can be exited by using the back button, some have quit buttons. For those which don't have either, or where it's not really feasible to keep pressing back, just leave it - as said, Android will close them later if necessary.

Clannad_92 · « **Reply #5 on:** March 21, 2012, 03:39:45 AM »

Im asking how to exit apps because i dunno how to exit internet browser...i guessing that pressing home button and leave it to be closed down on its own is sufficient enough...is that wrong?

Thanks...

Bob2004 · « **Reply #6 on:** March 21, 2012, 04:53:09 PM »

Quote from: Clannad_92 on March 21, 2012, 03:39:45 AM

Im asking how to exit apps because i dunno how to exit internet browser...i guessing that pressing home button and leave it to be closed down on its own is sufficient enough...is that wrong?

Thanks...

Yep, that's right. It doesn't matter if you leave it open in the background, because it's not actually doing anything, and it will be killed if needed.

Mistgun_Zero · « **Reply #7 on:** March 21, 2012, 05:05:31 PM »

In my opinion surfing the web does put a lot of strain on battery of S2. Just staying online may not consume much.

One of the main reason is that the common white colour web page's put a lot of strain on that AMOLED screen of S2. (AMOLED screens consume max power when displaying white color and minimum for black.)

Clannad_92 · « **Reply #8 on:** March 22, 2012, 03:40:27 AM »

Quote from: Mistgun_Zero on March 21, 2012, 05:05:31 PM

In my opinion surfing the web does put a lot of strain on battery of S2. Just staying online may not consume much.

One of the main reason is that the common white colour web page's put a lot of strain on that AMOLED screen of S2. (AMOLED screens consume max power when displaying white color and minimum for black.)

What does that mean?im confuse...surf web put strain, stay online save batt, but showing webpage with common white is consuming power...maybe i should low down the brightness...maybe that should help saving the batt a little...

Freedom Kira · « **Reply #9 on:** March 22, 2012, 12:03:04 PM »

Quote from: Clannad_92 on March 22, 2012, 03:40:27 AM

What does that mean?im confuse...surf web put strain, stay online save batt, but showing webpage with common white is consuming power...maybe i should low down the brightness...maybe that should help saving the batt a little...

Basically, if your phone is just sitting in your pocket and connected to the web, it doesn't consume much energy because the screen is off. But when you're actually browsing the web, the white background you see on most web pages will cause more battery drain because the AMOLED screen uses more power to display lighter colors.

If that is the case, you should see if you can change the default background color of web pages.

Clannad_92 · « **Reply #10 on:** March 22, 2012, 01:38:20 PM »

Quote from: Freedom Kira link=topic=34112.msg4757641#msg4757641

If that is the case, you should see if you can change the default background color of web pages.

Hmmm, but how?
Im warning you all, im still new to android...so, please bear with me...

Freedom Kira · « **Reply #11 on:** March 23, 2012, 09:17:09 AM »

I don't know how to do that. I said you should look for the option and see if it's available.

Clannad_92 · « **Reply #12 on:** March 23, 2012, 10:18:29 AM »

Airhawk · « **Reply #13 on:** March 23, 2012, 10:27:18 AM »

Mine usually lasts 2 days when im using it actively for around ~5 hrs a day.

As for killing tasks with the task manager i never have had any problems with that

Clannad_92 · « **Reply #14 on:** March 25, 2012, 12:01:22 PM »

Quote from: Airhawk on March 23, 2012, 10:27:18 AM

Mine usually lasts 2 days when im using it actively for around ~5 hrs a day

Cool!!that is way long...

costi · « **Reply #15 on:** March 25, 2012, 12:09:38 PM »

Quote from: Airhawk on March 23, 2012, 10:27:18 AM

As for killing tasks with the task manager i never have had any problems with that

Using task killers and the like does more harm than good - Android does a very good job of managing memory by itself and it will kill apps as needed, while at the same time using any available RAM to keep apps in the background.
What task killers do is force close apps to keep as much free RAM as possible (what's the point?) - the effect is that when you come back to an app it needs to be started from scratch instead of simply being pulled form the background. This takes time and is CPU-intensive, therefore eating more battery.

kitamesume · « **Reply #16 on:** March 25, 2012, 01:47:44 PM »

the "free up as much ram as you can" thing is kind of a double-edged technique, if you think about it, the un-occupied ram is being wasted but at the very least it is ready to be used by tasks that would need them without delay. on the other hand if you didn't kill tasks and just reserved enough ram for the next program then wouldn't that be more efficient?

if you got tons of ram you wouldn't need the task killers anyway.

i wonder if those phones have a throttle program, something that forcibly throttles the CPU to slow down, this could help prolong the battery-life, also screen brightness can be lowered for saving up more battery-life.

Bob2004 · « **Reply #17 on:** March 25, 2012, 10:01:26 PM »

Quote from: kitamesume on March 25, 2012, 01:47:44 PM

the "free up as much ram as you can" thing is kind of a double-edged technique, if you think about it, the un-occupied ram is being wasted but at the very least it is ready to be used by tasks that would need them without delay. on the other hand if you didn't kill tasks and just reserved enough ram for the next program then wouldn't that be more efficient?

if you got tons of ram you wouldn't need the task killers anyway.

i wonder if those phones have a throttle program, something that forcibly throttles the CPU to slow down, this could help prolong the battery-life, also screen brightness can be lowered for saving up more battery-life.

It doesn't really take any extra time to close applications to free more RAM when it needs it. It knows which programs are safe to close and just overwrites them in memory as needed.

I think it is possible to over/underclock Android phones, but you need to have rooted it, and be using a rom that's able to do it. I imagine doing so would reduce power draw too, but only when using really intensive applications - and the trade-off would be that those apps would run slower. Since when it's idle it's not really using much power anyway, it only uses a lot when under load.

kitamesume · « **Reply #18 on:** March 26, 2012, 06:36:52 AM »

well true the programs would slow down considerable, but what if you set it to throttle lightly by 70% battery-capacity? and throttle aggressively when battery hits 35% or below? it would prolong battery-life considerably.

i think management is the best way to prolong battery-life, if you use apps on the tablet really frequently then it wouldn't last you long. but if you manage your usage and only use intensive programs when you're plugged in then you could even prolong battery-life to more than it originally can.

rostheferret · « **Reply #19 on:** March 26, 2012, 06:49:34 AM »

If I don't really use my phone - short of phone calls and texts, which is pretty much only what I use it for anyway - it can last me close to 3 days, 2 comfortably, permanently connected to wifi. When bored at work, browsing the internet I've run down the battery from full in about 5-6 hours. My phone (Sony Ericsson Xperia X10 Mini Pro - I know, what a retarded name) has a far smaller screen than yours too. Turn down the brightness of the display as much as you can bear; this is what'll kill your battery life far more than anything else.