Basically, i got this phone(GS2 i9100M) a week ago and found way too many problems that i cannot fix. So, why exactly does so many people like about this phone compared to other variant, e.g. GS2 T989 with snapdragon processor? I mean, my brother has the T989 and i also had it before too until i sold it to get this. It seems like i've been experiencing a lot of problem from this phone that does not really occur on the T989. The default music player is faulty which causes auto reboot, and the phone constantly heats up; even when viewing photos from the gallery! What attracted me to get this phone was people's opinion about the CPU and GPU also the gorilla glass, but i dont really notice a big differences in speed between the two phones. The T989 also doesn't heat up this much or this often. Feel free to share your experience people, and would appreciate if someone can offer me some advices on how to fix the heating up issues.
First, its better to talk n read at 9100 forum section but since im a 9100 user, ill share it here
Yes, on day one i got my 9100, it gets really warm even when not charging and got a lot worse when on charge. Its mostly the media scanning process which seems unstoppable on the earlier build when the SGS2 was released
I first noticed that its solved when using XXKG3 firmware and above. And also, undervolting to around 50mv reduces the heat too. A normal 9100 is capable of undervolting up to 175-200mv but it depends on phones are some silicones are made better and its not a constant result. What samsung made is setting the voltage at all the same safe level to avoid reboots. U have the option to undervolt it to reduce heat or even underclock to 1Ghz since 1.2ghz is quite overpowered and u want to conserve the battery and make it last longer.
Try Siyah kernel and learn to tweak using voltage controller and extweaks. There r guides given in SGS2 section here on XDA and it is well compiled.
Cheers
Sent from my GT-I9100 using xda premium
bershote Legiflature;
Thanks for your reply. I've posted in the wrong section by mistake. Someday I'd consider rooting the phone, but at the moment I don't want to take the risk because I'm still kind of new to smartphones and don't know much about it. What's your opinions on ICS? Do you think ICS OS release will solve most of these problems?
Related
For the convenience of writing,Overclock shall be referred to as OC.
So,the Ace has started recieving OC kernels,which is a good thing but OC is dangerous too.I decided to make a thread and warn all users who don't know much and overclock.So,with this thread,I intend to educate all newbies about OCing before users start bricking their phone.
I shall write about overclocking,what overclocking does and then discuss abotut the various advantages and disadvantages it comes with
WHAT IS OVERCLOCKING?
Overclocking is the process of operating a computer component at a higher clock rate.In our case,the processor.Most people overclock their phones for perfomance but this so-called perfomance comes at a price which every user who oc should know about.So,I am going to discuss it
Android phones are clocked at a safe level when we buy it.However,we exceed this 'safe level' when oc it.
ADVANTAGES OF OVERCLOCKING:
1.Perfomance-OCing gives perfomance and thats what most people go after when they oc.
2.Cost-saving-Some people who have extensive knowledge about OCing do it to save money.For eg-Some people claim that they can get clock speeds upto 1GHz
when they oc.SGS has a clock speed of 1GHz(but when they overclock,they get better speeds I just put this one in so that people can have better knowledge)
DISADVANTAGES OF OVERCLOCKING:
1.Excess heat production-OCing produces more heat,nothing to be added
2.Lifespan decreases-By overclocking to extreme levels,you are actually killing your phone.Because of the excess heat generated,some interior parts may get damages.
3.Damage to GPU-Because of the heat generated(i think)
4.Excess Battery consumption-Because of the intense heat generated and the unusual number of charge cycles,battery consumption becomes high.As you might already know,Ace's battery is really suckish.With OC,its going to be even worse.
5.Permanent effects-If you were having weird effects when you OCed for a long time,you are not going to feel much better when you right-clock again
6.Instability-Stability levels of various phones vary Some get OC speeds near 1GHz while others are having trouble getting over 900MHz
7.FCs,Reboots and other errors-You have a chance of getting constant reboots and FCs when you OC,it depends.Some have even complainde of their touchscreen having complains when they switch to OC kernel
FINAL WORDS:
IF YOU DON'T KNOW WHAT YOU ARE DOING,DON'T DO IT
OCing experiences/Suggestions:
Valakas:
Im used to OCing almost all the PC's i had, and my SGA wasnt an exception but sadly i didnt notice any huge improvement in the performance or in the lags i had in some huge games.
OC is a good way of wasting battery life and perhaps burn your phone. i wouldnt advise anybody to do it because its just not worthy.
P4qui7o:
I better get a new and stronger phone instead doing this !
Anyway you're phone is gonna "howl" some day after OC, and if you don't have money to buy another one, you've better keep it at 800Hz, stock ... my opinion
Yukinok25:
I have been OC's my HTC HERO since I bought it (2009), it's an old ARMv6 525mhz, which I pushed to 710mhz/MAX.
I NEVER had any issue for my OC's, I obviously can say that it becames maybe slightly warmer than the stock clock but nothing near hot.
Thanks to this, my Hero is running all the lastest rom with no lag for this two years, and so the other people in the Hero forum (basically 90% of the people OC's).
I am agree with the opener that OC's could be dangerous and it might decrease the lifespan of your device, but I also think it depends on the hardware, and I am not agree when I just read is "not" useful, because it DOES give a huge boost to your device.
Besides you can undervolting your CPU when your smartphone is in Idle (my MIN is 19 mhz), so the heat won't be generated anymore, you will save battery life, and the paradox... you will extend the life cicle of your CPU.
Also keep in mind that developers are improving the OC's working on new governors and kernels all the time.
There are risks also when we flash a rom or a new radio version, but that doesn't mean they are not useful. We flash them because we want to enhance our devices
Pardon me,if there are any mistakes,technical or grammatical,if i have missed anything.
Thanx to Wikipedia,PujitJuneja and Google
P.S. I didn't copy-paste it from anywhere,wrote it all down.So,a click on the thanks button will be greatly appreciated
Cheers
I think this was a good piece to explain risks and rewards of OCing.
All d noobies should take a look at this.
Sent from Galaxy Ace GT-S5830 using Grif's Cyanogenmod & allinone ram script.
Dont jus say thanks, use d 'THANKS' button. [XDA RULE]
Sent from my GT-S5830 using XDA App
EmoBoiix3 said:
Sent from my GT-S5830 using XDA App
Click to expand...
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Empty Reply?
Anyways, this is an awesome thread for people who don't know a lot about Overclocking
EmoBoiix3 said:
Sent from my GT-S5830 using XDA App
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Whats that supposed to be,empty post?
pujitjuneja said:
Empty Reply?
Anyways, this is an awesome thread for people who don't know a lot about Overclocking
Click to expand...
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Couldnt have done it without you
I better get a new and stronger phone instead doing this !
Anyway you're phone is gonna "howl" some day after OC, and if you don't have money to buy another one, you've better keep it at 800Hz, stock ... my opinion
Prawesome said:
Couldnt have done it without you
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Hehe, always happy to help (Well only for some people )
Thank for ur info
devilsking said:
Thank for ur info
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Anytime
Well done
Sent from my GT-S5830 using XDA App
Great work!
And to add to this maybe..
The battery will get effed up pretty soon coz of the rapid discharging and the more than usual number of charge cycles and also the heat
Im used to OC almost all the PC's i had, and my SGA wouldnt be the exception to that rule. But sadly i didnt notice any huge improve in the performance or in the lags i had in some huge games.
OC is a good way of wasting battery life and perhaps burn your phone. i wouldnt advise anybody to do it because its just not worthy.
Thanx for the suggestion guyz...Will add them
Without cooler (radiator) OC on SGA its a danger experiment-be care full. Sorry for my weak English.
Sent from my GT-S5830 using XDA App
Thanks for the useful info here ....
GT5830 said:
Thanks for the useful info here ....
Click to expand...
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Anytime
PafcioPjay said:
Without cooler (radiator) OC on SGA its a danger experiment-be care full. Sorry for my weak English.
Sent from my GT-S5830 using XDA App
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Its already written-heating effect
As the name implies, would like to know if the banding issue has been addressed in the OMAP4430 variant of the SGS2.
Since the entire circuitry has essentially been replaced, i would assume so.
Thinking of swapping my i9100 for an i9100g, since i heard it has better acoustics, less heating issues, longer battery life and pretty much the same real time performance ( i couldnt care less about synthetic benchmarks).
So as long as the interface remains lag-free just like the original, and banding issue fixed, im getting the i9100g.
Maybe you considering this as an issue (like myself) but for Google is not.
I can't answer your question because i dont have i9100g but im afraid it has no difference. I was hoping ICS will correct the whole situation but as far as i see from the videos has been posted around, is the same sh1t. We have to live with less than 24bit
What you heard was probably placebo. Longer battery life? Really? Also don't why you would switch to a phone with such a limited development community.
I have it and it has no color banding, at all. But DO NOT swap your I9100 for a G, as it has way more community support than the G version.
Longer battery life? Really?
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It has longer battery and less heating, thanks to processor being capped at 1008 Mhz.
So I have come to believe that our galaxy phones would run hot during CPU intensive tasks such as web browsing with lots of flash GPS, data usage and webbrowsing. What I don't get is that, why is our phone hotter than for example an iPhone when during CPU intensive tasks?
Surfing the web on data doesn't get as hot on the iPhone as my galaxy s2
One possible reason is due to the fact iphone 4s CPU is clocked at 1Ghz compared to ours at 1.2 Ghz. You can try clocking down, it doesnt completely make the phone cold, but I found it helps. Im my case at least, all my apps work just fine even at 1 GHz.
Can you describe where the heat source is? Mine is just around the camera. I've found out in fact many custom roms cause this. Resurrection, sensation, none worked without heating. Though with stock rom, I've rarely had heating problems (only while charging). So I assume custom roms do not help much in this sense.
shadowyman said:
Can you describe where the heat source is? Mine is just around the camera. I've found out in fact many custom roms cause this. Resurrection, sensation, none worked without heating. Though with stock rom, I've rarely had heating problems (only while charging). So I assume custom roms do not help much in this sense.
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Just to confirm, you have the i9100 correct? Not the AT&T or Tmobile SGS2?
shadowyman said:
Can you describe where the heat source is? Mine is just around the camera. I've found out in fact many custom roms cause this. Resurrection, sensation, none worked without heating. Though with stock rom, I've rarely had heating problems (only while charging). So I assume custom roms do not help much in this sense.
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Yea around the camera. That's where all the heat comes from. I don't remember stock at all as I quickly changed from stock to AOSP. But every AOSP rom so far has the heating problem. I just underclocked my phone to 100mhz to 900mhz. And also step down the GPU.
you could have tried changing modem and kernel.
Kaze105 said:
Just to confirm, you have the i9100 correct? Not the AT&T or Tmobile SGS2?
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Yes, got it from Amazon international unlocked version (i9100)
NZed said:
So I have come to believe that our galaxy phones would run hot during CPU intensive tasks such as web browsing with lots of flash GPS, data usage and webbrowsing. What I don't get is that, why is our phone hotter than for example an iPhone when during CPU intensive tasks?
Surfing the web on data doesn't get as hot on the iPhone as my galaxy s2
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Click to collapse
Lol well the iphone is twice as thick as the S2
Sent from my GT-I9100 using xda premium
Exynos
Its actually the problem within Exynos chip-set ,its get super hot ( 50+ degrees Celsius!) during intensive task ,other phones use different SoC,i think samsung already solved this issue in S III ,hopefully ^^
Hello I own the Samsung Vibrant for two years now and even though I was a bit reluctant to overclock the phone at first as new phones were coming out in the market and its (Vibrant's) performance deficit was becoming all the more significant (in comparison to newer phones) I "succumbed to the temptation". At first by a little margin (no more than 20% overclock) but eventually -as I was seeing my phone to be capable for it- for even greater ones. There was a time that I was using my phone at 50% over-the-stock clocks.... those were the days
Eventually -it seemed- as if it somehow starting becoming less and less capable holding the clocks so I started lowering my clock thresholds eventually killing the overclock altogether. Mind you the grand total of the time(s) that I had my phone overclocked (up until then) was not that great...
But then ICS came out with all its fancy tools and the "temptation" overcame me again and as if from a miracle I was able to maintain 50% overclocks like the good ole days (1512Mhz to be exact). To be sure -that time around- that that is a stable clock I devised a slew of different test from extensive software decoding, to 3D and CPU rendering. My phone was rock solid. To address the battery issue I bought an extended battery and all was well in "Vibrant-Ville"...
To my dismay though even though my phone seemed rock solid I seemingly starting losing my overclocking capacity (once again) as I migrated into Jelly Bean, so I said to myself "oh no, no, I'm not going through this again, I'd choose a moderate overclock and I'll leave at that". So I disabled Live-OC, custom voltages, hell even deleted NSTools and used the standard 1.2GHz setting, my battery was better, my phone was rock solid once again and thanks to jelly bean my phone was still fast enough...
Two days ago -though- the ghosts of the past reared their ugly head once again, out of the blue my phone lost its stability. Anytime I was trying to do anything remotely complex and it would reboot (BTW I'm using Helly-Bean right now, using the "Smooth" setting, Smartass governor @ 1.2ghz, pretty standard stuff).
I love this phone but I feel it's nearing its death-bed, what's your opinion guys?
I'll prolly remove the oc altogether but I fear it won't be enough, I fear that instability would start encroaching the 1ghz setting as well one of the days and then it would be game over. I want to avoid this fate at all costs, so anything you could recommend I would try, even changing my rom.
Also to those who used overclocks in the long term what was your own experience?
Thanks for your attention
No response(s)?
Sorry for the bump but I take it none of you guys ever have/had any of the problems I'm describing. Hmm, that means that I was unlucky with my piece of hardware it seems... pity :/
More than likely an aging chip is the case. Personally my phone runs smooth at 1GHz, so I don't see the need to unnecessarily overwork the CPU. After reading your original post, one line stuck out to me in particular. You mentioned that you ran the CPU at 150% for a time, and to me that sets off a red flag. Setting the CPU at 1.5GHz is risky and can cause some major wear on the CPU. Not to say I've never overclocked that high, but I usually only set it that high when playing a high graphics game. Even then, 1.5GHz is not recommended if you wish to use your device long-term. Even 1.4GHz is considerably pushing it. Although our devices can handle it, eventually, they're going to tire out. Now some phones may be able to last longer than others, it depends on the amount of iron in the sand used to make the silicon processors or other minuscule things could play a role. Essentially, it's random. No two chips will be exactly identical nor run exactly the same. So in your case, that may be the case. Perhaps your device really is nearing the its end. Considering that your phone was made to last only a few years at stock speeds, you should still be pleased with how long it's lasted. However, it is understandable if you're upset with this. The only thing I can suggest is to not overclock anymore and to try and keep its temperature low. Perhaps try undervolting? But if you want your phone to last, don't overclock (if your phone's processor is already starting to fail at 1.2GHz, when it used to run rock solid at 1.4 or 1.5GHz, then you definitely need to stop overclocking entirely). More than likely you won't hear other Vibrant users discuss similar problems because they've already moved on to new devices, before the long-term effects of high overclocking began to take its toll. But if you do a little research, you'll find other users on other devices having similar problems to what you are having.
Wish you the best in your efforts, and hopefully you'll get a year or two more out of the device... Hopefully someone will come forward with a better recommendation/solution to your problem. Since I pretty much stated what you probably already knew.
I'm not for overclocking, nor have i overclocked my vibrant.
With that being said, i have never had any performance issues, and I'm having difficulty recalling any issues with stability either..
I hope you treat your new phone with more respect..
I'm sure it will live you much longer for it.
Sent from my amazingly stable SGH-T959 using SlimICS
Samsung Galaxy note 2 for JB ROMs. Like I have MeanBean there is only 3 but I been using saber??
JamesCaywood said:
Samsung Galaxy note 2 for JB ROMs. Like I have MeanBean there is only 3 but I been using saber??
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I have run PBJ, Saber, Perseus and Beans Stock so far (all on Beans ROM). I only messed with overclocking and undervolting on perseus and frankly didn't notice any real difference. For me Beans Stock has been the best for battery life (just cracked 2 days on a charge with 3 hours of screen time), but even that is only slightly better then I got with the other kernels. As for performance the phone is so good I can't honestly say one is better than any of the others. I am sure some people can post some test scores that show one being better than the other, but I am not sure in the real world there are major differences.
Alright thanks
I like my kernel Really, stock is already pretty good. For what 95% of users need, it will do just fine. My kernel just strips out a lot of stuff from stock and leaves you with pretty much just what is needed for the kernel to run, not much more. Overclocking isn't going to do much for you outside of getting pretty benchmark numbers. Undervolting also isn't going to do much for battery life as you won't be able to drop the voltages enough to do anything appreciable. Having 50 different I/O schedulers and CPU Governors is great on paper, but really, most of them aren't going to improve performance or help battery life.
imnuts said:
I like my kernel Really, stock is already pretty good. For what 95% of users need, it will do just fine. My kernel just strips out a lot of stuff from stock and leaves you with pretty much just what is needed for the kernel to run, not much more. Overclocking isn't going to do much for you outside of getting pretty benchmark numbers. Undervolting also isn't going to do much for battery life as you won't be able to drop the voltages enough to do anything appreciable. Having 50 different I/O schedulers and CPU Governors is great on paper, but really, most of them aren't going to improve performance or help battery life.
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Alright thanks
I have Perseus installed strictly for the screen tuning. If not for that one feature, I'd be on stock.
Sent from my SCH-I605 using Tapatalk 2
imnuts said:
I like my kernel Really, stock is already pretty good. For what 95% of users need, it will do just fine. My kernel just strips out a lot of stuff from stock and leaves you with pretty much just what is needed for the kernel to run, not much more. Overclocking isn't going to do much for you outside of getting pretty benchmark numbers. Undervolting also isn't going to do much for battery life as you won't be able to drop the voltages enough to do anything appreciable. Having 50 different I/O schedulers and CPU Governors is great on paper, but really, most of them aren't going to improve performance or help battery life.
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For what it's worth, PBJ was a close second on my device to Beans Stock. I would rank them 1 and 1a. I totally agree on the OC and UV comments...I tinkered with them a lot and it didn't seem to do anything. Appreciate your work...I was a Tweaked devotee on the droid charge.
Something that people probably don't realize, overclocking and undervolting will negatively affect the power usage stats in Settings. They are based on specific power usage levels for each frequency, and if you add frequencies or change voltages from stock, the stats won't work correctly. Will it be a big difference? No, but it will be affected nonetheless. It wouldn't make the battery drain faster or slower, but it would affect what application(s) the system sees as using the most battery.
Alright so if I use your kernel it won't miss up MeanBean stuff?? Are should I just leave it stock
JamesCaywood said:
Samsung Galaxy note 2 for JB ROMs. Like I have MeanBean there is only 3 but I been using saber??
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Subjective questions and what they do for you:
As a member of many different forums and networks, I see people asking subjective questions all the time and wanted to expand on them and what they do for the person asking.
I am going to use the topic of smartphones for the purpose of this post as it's easily the most frequent.
People always ask what launcher they should use, or what app works best for something etc..
Typically my answer [albeit cold and withdrawn] would be something like, "try all of them and choose the one that works best for you". This response is usually met with hurt feelings or some troll itching to lash out and pull his keyboard commando card.
I will liken this scenario to a car or truck. If someone were to ask me or you what make and model of car you drive and what you like, you could easily answer Kia [I'm using what I drive as an example here]. Then typically they would say they heard Chevy was better or Ford has something similar blah blah blah.
Ok, then if Chevy makes something better then why the hell did you ask me?! This type of question is always subjective because it builds on my personal choice. My preference. But the person asking the question almost always has their own preference or bias which taints the question to begin with.
Any question that asks a person or group of people for an answer that is inherently based off of personal preference begs to be answered the same way. It also makes the person who asked the question look stupid because they were too lazy to simply try the options and make a calculated decision themselves. They don't have the capacity to form an answer of their own. This is the uneducated method.
So when someone asks me which launcher I choose, I could answer Apex Pro. But that's only because it works well for my needs and my application which is specific to me and me only. Hundreds or thousands of people will argue why Nova, Launcher Pro, Chameleon or one of the many other launchers is better. This is an endless argument as again, the best launcher is the one that works best for you. On your phone. With the apps you have installed. The way you use your phone. The same holds true for kernels. Case closed.
Subjective questions will almost always be met with subjective answers. The easy way to not make yourself look and come off as lazy or stupid is to try things yourself and decide which works best for you in your specific situation.