Develop Bugs

General Questions about Screen and Battery

Hi There!
I got my wife one of these to replace her Motorola Defy.. She has a few questions I couldn't really answer...
1) She seems to be having problems with signal and therefore internet connectivity. All our other 6 devices wireless fine. It's running 4.04 Android Custom ROM. I read recently 4.04 users were reporting issues with the signal strength and wondering if I should change back to 4.03?
2) She says whites are not really white and when I compare to the Defy it would appear she is right.
3) She says the text doesn't look as sharp or crisp and again I am inclined to agree. I am not sure if this is a Pixel Density issue or a setting we can change.
4) Battery life is shocking. I'd say she is lucky to get 8 hours if she talks on the phone for perhaps 45 minutes a day. I am interested to know what a reasonable baseline expectation is.. Right now she is barely touching it.
5) Are the Nexus and Nexus S supported in the same forums and take the same ROMS?
NM I found the S Forums, sorry to have bothered you.

I think some users have found setting the Min CPU frequency to 729 instead of 384 helps to alleviate the signal drop issue. I have not experienced it myself. It might help if you report what rom/kernel you are using.
I personally get excellent battery life. Try enabling auto brightness and disabling auto-sync on data heavy applications such as some news readers or facebook. You can install CPUSpy and BetterBatteryStats to get an idea if your phone is properly going into deep sleep when idle and if not, what is preventing it from doing so.
Nexus S roms are NOT compatible with the Galaxy Nexus.

Thanks how do I change cpu frequency?
Sent from my GT-I9100 using XDA

Galaxy Nexus getting too hot!

Hi.
Recently my Nexus (GSM) is getting way too hot even when doing normal stuff like browsing the gallery or surfing the web.
I tried full wiping and installed different ROMs and Kernels but it didn't solve the issue. (Without even installing any app or restoring any backup)
I noticed that this mainly happens when I turn on my Wi-Fi.
Any help/tip will be greatly appreciated.

Make sure your not over locked in the rom your running or replace your battery. Even take it into the store and get a replacement its a manufacture issue
Sent from my Galaxy Nexus

Cm9 with default kernel keeps mine cool. Switching to Franco's kernel(milestone 3) makes it hot even when just listening to offline podcast and screen off. It overclocks from 1.2 to 1.34.
Try cm9
Sent from my Galaxy Nexus using XDA

colocynth said:
Cm9 with default kernel keeps mine cool. Switching to Franco's kernel(milestone 3) makes it hot even when just listening to offline podcast and screen off. It overclocks from 1.2 to 1.34.
Try cm9
Sent from my Galaxy Nexus using XDA
Click to expand...
Click to collapse
Hey man. Thanks for the help. Everything's OK now.
Much appreciated.

Verizon nexus same problem
I've noticed with my Verizon Nexus that i run into the same problem some times. When i have 4g hotspot on and it is plugged in to the wall charger it gets really hot. But the first time I noticed it getting hot was in my car running Google nav and trying to listen to music through the radio at the same time. I was thinking it might have been the defroster heating it up because it was right above my vents. But I've been noticing it at home a lot. Well anyway I'm gonna try running some different kernels.

In the VZW Galaxy Nexus (and I assume others, but there are some variation), the top part of the phone, around the camera, is where the processor, wifi radio, and LTE radio, are all located. If you're doing anything data intensive on wifi or lte, you'll notice a warmup. If you're doing anything on both, it will probably get hotter. I have a scheduled Titanium Backup run every night at 3am, and then have it upload to dropbox. It gets a bit warm, but cools back down to idling temps shortly after.

My CPU runs @ 65 degrees when Im browsing, im pretty sure thats not normal

[Q] Galaxy Nexus CPU temp

Hello all
This is my first post and Galaxy Nexus is my first Android phone.
So, when i bought my GNex it was on stock and I use Stock ROM about 3 days. In that period he never get any warm - not even whet I play Angry Birds RIO for about 30min.
Then my brother install me latest AOKP ROM and Franco kernel - great stuff, but now I feel heat around camera
I use TempMonitor PRO app and this is my results :
all apps close, not starting anything - around 32C
Gallery, cam, some apps started and closed - from 38 to 42C
Playing games (Angry birds RIO, Space, Sentinel HD) - 48 to 52C
My question is this :
Is that normal temp? How does Stock didn't heat that much
Tnx and i hope this will help if someone have the same question

Hi,
Your CPU temp is absolutely normal,no worries.And while playing games it's even perfect.
How does Stock didn't heat that much
Click to expand...
Click to collapse
You're not stock now...
After it depends at what CPU freq you're running,voltage,ambient temperature,etc...but here it's perfect.

I just posted in another users similar thread about their phone getting hot (he said "extremely" hot so hes likely going way past your temps). I too have found my phone to be warmer when running AOKP Build 38. I've run the Stock ROM and LiquidSmooth with Francos Kernel (also tried Provision briefly but it had some issues I couldnt overlook). AOKP gets the hottest by far for me (both at stock CPU and OC to 1420).
I plan on switching ROMs again soon and will take note of temp then

If you use a less feature rich rom you might have less heat issues.
I suggest using the trinity kernel together with a cm9 rom.
Sent from my Galaxy Nexus using Tapatalk 2

Your temps are fine but if you want to find something a little "cooler" try out different combinations. For me, CM9 and Trinity Stable 65 at 1344/384 stays pretty cool while gaming. Ultimately it is going to be a factor of your clock speed. You can adjust the frequency of your CPU back down to 1200 (1190?) and you'll see the temp difference. You might also see it slow down during certain UI interactions. Just play around with it, but your phone is still considered in the safe zone at those temps. They have thermal protection built into the kernels as well so even if something crazy happened your CPU would back off until cooldown and if it can't cooldown, it'll shut off for you but that would be a very rare condition. I've never had it happen and I've ran at 1650Mhz for a long time.

Tnx all for info. Great help!
Hmm it would be nice to get back to Stock but to keep root and maybe to install franco kernel... What you say about that?
It's iritating to play game 5 min or look pic in gallery and to feel heat in phone!
One more thing because I'm new in this stuff :
How to get back to Stock? Is it hard?

Your CPU is probably overclocked, don't worry, as long as it stays UNDER 55 degrees C, nothing will happen, if however, it goes over, it will burn your hand, if you're unlucky, it happened to me, with my GS II...

familyguy59 said:
Your CPU is probably overclocked, don't worry, as long as it stays UNDER 55 degrees C, nothing will happen, if however, it goes over, it will burn your hand, if you're unlucky, it happened to me, with my GS II...
Click to expand...
Click to collapse
Hi,
Why under 55°C???
The stock temp limit before thermal throttling is 64°C and in Francisco's kernel it's at 75°C.
And the max before the CPU shutdown is 110°C...The extreme protection and the extreme overheating
So above 55°C no worries...In any case if you don't disable the CPU temp limit (like in some kernels->Morfic,Glados and eventually Francisco but not (yet) in his app) you're good and before 110°C->thermal throttling->lower CPU freq according to the CPU Temp limit.
His CPU temp is actually normal,don't say stays under 55°C....56/57/58/59°C,etc...to 64°C or 75°C,no problem unless you stay at 75°C during 1 hour...
With that you said the guy no longer used his phone for browsing 5 mins in the sun...

familyguy59 said:
Your CPU is probably overclocked, don't worry, as long as it stays UNDER 55 degrees C, nothing will happen, if however, it goes over, it will burn your hand, if you're unlucky, it happened to me, with my GS II...
Click to expand...
Click to collapse
55 is a very low number and i would suspect most stock GNexs would go above that routinely under heavy load.
I've had my phone up to 66 and its nowhere near burning. Its warm to the touch and thats about it. Now if you are somehow putting your hand directly on the CPU (i.e. not possible) then yes that might feel much warmer.
Basically if you manage to burn yourself on your phone either its already fried or someone lit it on fire

After playing ShadowGun around 15min I get temp. around 65C?! That is really hot - for me!
I think to get back to Stock... This is way hot for me. What you say about that?
Can anyone post link how to get back to Stock? Guys this is my first android phone and if I get bootloop I will get a heart attack, really I will get one

Nemesis_GNex said:
After playing ShadowGun around 15min I get temp. around 65C?! That is really hot - for me!
I think to get back to Stock... This is way hot for me. What you say about that?
Can anyone post link how to get back to Stock? Guys this is my first android phone and if I get bootloop I will get a heart attack, really I will get one
Click to expand...
Click to collapse
Honestly don't be afraid of boot loops as you can most likely still get into recovery if that happens and all it takes it's a bad download of a ROM or forgetting that such and such kernel is incompatible. Be afraid of bricks and soft bricks lol. Although if you take the time to read before doing anything you'll be fine. Also just download a sick image for your phone from the tool kit to go back to stock. That's the easiest way.
Sent from my tin can using a string.

Hi,
65°C after playing 15 mins of an "intensive" 3D game...I don't see where is the problem...It's absolutely normal...
How can your CPU temp will be at 50/55°C (about,for example) after playing 15 mins of game???
You hope what temperature?
Which cpu frequency?GPU?Undervolt?
Don't focus much on your CPU temp,if it's overheated->thermal throttling...And in extreme situation...just a reboot...
It will be the same thing with the stock kernel,you will get the same temperature under the same conditions (playing)...

Unfortunately that's the way it is right now with dual core phones. My phone regularly gets too hot to even touch when playing games for over 30 minutes. I called to speak with samsung about it and they pretty much brushed it off as normal. I'm running on cm 9 with a franco kernel
Sent from my Galaxy Nexus using XDA

SGH-i747m overheating

Hello there xda. I bought my first SGH-i747m(Canada Bell version) and it had a pretty serious heat problem when I did use my cellphone doing anything for more than 5 minutes. After 15 minutes it usually bothers me too much so I just stop using my device.
I didn't try anything to fix it yet other than using a JB rom(ParanoidAndroid) on both my first device, and now my second device. They both do the absolute same thing. The bottom half gets really hot while the top half stays really cool.
Is that a common thing? If so, is there any fixes? It's really horrible to use a half hot/cold device, even worse than using a fully hot device.

Nah
Try turning Powersave On.
I had issues with overheating too.
Now they are all gone.
I'm running Nostalgia 7.5

It gets hot at the bottom because that's where the CPU and all that good stuff are, and that good stuff gets hot. Mine doesn't get crazy hot down there but it is definitely warmer down there then the top, that much is normal. Yours may be to hot down there however... Idk. But I've seen others with this issue cool the phone down with custom kernels. I've also seen people say custom kernels make there phone hotter.. Try it out.
Sent from my SGH-I747M using Tapatalk 2

bravomail said:
Try turning Powersave On.
I had issues with overheating too.
Now they are all gone.
I'm running Nostalgia 7.5
Click to expand...
Click to collapse
I'm on custom JB, so there' no "powersave".
I guess I'll try different kernels etc. I'm quite close to actually selling the device, overheating is one of my pet peeves.

Are you sure its overheating?
Like the gentleman a few posts up said. Depending on how you use it. The phone will get warm.
It should never be actually hot, to the point where it will harm you if you pick it up.
Sent from my SAMSUNG-SGH-I747 using xda premium

try going back to stock, all of a sudden the phone doesnt get as hot.
or try underclocking your kernel on custom. AOKP and CM both have an out of the box clock of 1.8 Ghz.
tune it down to 1.3 or 1.1. issue gone.

ThatJawn said:
Are you sure its overheating?
Like the gentleman a few posts up said. Depending on how you use it. The phone will get warm.
It should never be actually hot, to the point where it will harm you if you pick it up.
Sent from my SAMSUNG-SGH-I747 using xda premium
Click to expand...
Click to collapse
I feel like I shouldn't be complaining, and that it's not "overheating" but it's getting warm. I'm used to my SGS1 which runs ice cold whatever I do.
I just underclocked it, but I don't even feel the difference. I'm now running the new ParanoidAndroid with the custom kernel recommended in here. It has all the tweaking tools necessary.

Happened even on stock ROM
Mine runs a bit warm too. It is warm to the point where is gets uncomfortable to keep in my pocket at times and as far as I know it is doing "nothing". It will be fine, then I check an email or G+ notification then it goes crazy.
One commenter suggested going back to stock but mine has been doing the same thing since then, it just seem a bit more regular for the last few days. I am now in KyanROM 1.3. I am going to give that po.wer save thing a shot over the next day or so and let you guys know how that goes.

Use setcpu load up the setcpu widget and tell up what tempature your phone is
Sent from my SAMSUNG-SGH-I747

I notcied it is overheating when it's on LTE and the battery drain fast. I turned LTE off and I am using 4g or wifi and i don't have this problem

I noticed my phone started connecting to LTE since this week too but my overheating problem started long before that. What I noticed though is that the battery also started to drain a lot faster when it started. For the battery drain, I am thinking it is either that LTE thing or a rouge app trying access my GPS a lot since the icon keeps popping up more and more in the notification bar "searching". For now I have disabled LTE and GPS until I have time to investigate them.
By the way, I tried using PowerSave, as someone suggested to help with the overheating, but it screwed up how some of my emails are displayed so I turned it off.

Puzzling Random Reboot Issue

I've been trying to figure this out for months and have had no luck so I wanted to see if any of you had any recommendations.
I used to run Sense roms like the stock one and the sense 2.1 mctwist rom and they had no issues.
When CM9 came out, I decided to switch over to that. It functioned fine except I would get random reboots about 1-2 times each day. Tried clean installs, etc but nothing work.
Then CM10 came out and I upgraded. Once again, it works excellent except I still get random reboots once or twice a day.
And just recently I tried the AOKP Jelly Bean ROM, hoping it was a CM issue, but I also got the random reboots on AOKP.
What could be causing this? Occasionally I can go through the day without a reboot, but 9 out of 10 times, I get at least one reboot each day. Sometimes it happens while it's in my pocket and I don't even notice for a few hours.
These reboots are basically the phone starts showing the boot animation, but with a very dim screen and it just stays stuck with the spinning boot animation. It won't reboot until I pull the battery or do the 3 button reset.
Any advice? Should I try a different radio or...? I don't even know. I love JB so much so I'd hate to have to go back to a sense rom, but I can't take these reboots anymore.
Thanks

jpzsports said:
I've been trying to figure this out for months and have had no luck so I wanted to see if any of you had any recommendations.
I used to run Sense roms like the stock one and the sense 2.1 mctwist rom and they had no issues.
When CM9 came out, I decided to switch over to that. It functioned fine except I would get random reboots about 1-2 times each day. Tried clean installs, etc but nothing work.
Then CM10 came out and I upgraded. Once again, it works excellent except I still get random reboots once or twice a day.
And just recently I tried the AOKP Jelly Bean ROM, hoping it was a CM issue, but I also got the random reboots on AOKP.
What could be causing this? Occasionally I can go through the day without a reboot, but 9 out of 10 times, I get at least one reboot each day. Sometimes it happens while it's in my pocket and I don't even notice for a few hours.
These reboots are basically the phone starts showing the boot animation, but with a very dim screen and it just stays stuck with the spinning boot animation. It won't reboot until I pull the battery or do the 3 button reset.
Any advice? Should I try a different radio or...? I don't even know. I love JB so much so I'd hate to have to go back to a sense rom, but I can't take these reboots anymore.
Thanks
Click to expand...
Click to collapse
It could be an app causing it, or overheating. Do you over/under clock/volt? You may want to try underclocking a little, or raising the voltage a little. You may also want to check the system and kernel logs to see if they reveal the issue.

cmlusco said:
It could be an app causing it, or overheating. Do you over/under clock/volt? You may want to try underclocking a little, or raising the voltage a little. You may also want to check the system and kernel logs to see if they reveal the issue.
Click to expand...
Click to collapse
I used to overclock on my sense roms with no issue. But on CM10 I just have it set to stock speeds with no overclocking or adjusting the voltage. Could my phone be getting old and so even stock speed is causing overheating? My phone doesn't feel noticeably hot, unless it gets stuck in one of these reboots. Then it feels rather warm. What would you recommend I change my voltage to?
And I tried doing logs but they get wiped when I restart
EDIT: Odd thing I just discovered. I borrowed my friend's seido extended battery for the dinc and popped it in my phone. After charging it up for a bit, I used the phone and within 10 minutes it started acting weird and rebooted. And after restarting, it rebooted again a few minutes later. So basically it was even worse. Any correlation here? Does the extended battery = more heat = that's why my phone is rebooting?

It's hard to even guess unless you can get a log. If you give one of the stock based ROMs another trial for a few days, and the phone does not reboot, then it is safe to say it is not hardware. I'd start by at least ruling out the hardware possibility.
Do not use Titanium or some other app to restore any sort of data from one ROM to another. That often seems to cause a lot of people problems.
If your phone isn't that hot, I agree that heat isn't likely the problem. Mine absolutely roasts while navigating (while charging, screen on, gps and 3g antennas on, music playing, overclocked, weak original stock battery, otterbox case so it can't breathe, etc.) and it doesn't ever reboot from heat.
Everyone uses their phones differently. So what may be stable for one person might not be for others. I've come to the conclusion that there is only one person who can determine if a ROM is stable... that is the one person who uses it everyday. Just because some other people are using a ROM and getting good results, it doesn't mean that you ever will (even with you wiping/flashing/installing apps by the book).
CM9, CM10, or any and all ICS and JB roms are going to have things that aren't working right for some time still. It's just the nature of the beast. App compatibility, especially, is just one of those things. It's a testament to how good those awesome devs are that anything works on our Dinc running JB and ICS.
I never ran the ICS and JB ports for long (in fact only very short periods of time) because my problems far outweighed the benefits. There is no shame in GB working better for you. I run a variant of CM7 (which is gingerbread)... it is definitely different than stock-sense. Then I use alternate launchers (Go launcher is my favorite) to change it up even more. You can do so much customization that isn't dependent on the ROM. Then I can use something like ROM TOOLBOX PRO for even more customization.
Software is not fashion. What actually works never goes out of style (despite what the hipster kids on xda might be saying ...get off my lawn... grumble...)

jpzsports said:
I used to overclock on my sense roms with no issue. But on CM10 I just have it set to stock speeds with no overclocking or adjusting the voltage. Could my phone be getting old and so even stock speed is causing overheating? My phone doesn't feel noticeably hot, unless it gets stuck in one of these reboots. Then it feels rather warm. What would you recommend I change my voltage to?
And I tried doing logs but they get wiped when I restart
Click to expand...
Click to collapse
I would use incredicontrol and raise all max voltages by 25 or one push of the plus button. Sometimes as phones get older the processors get worn , and have issues with not enough power or even with the stock max frequencie of 998mhz. If raising the max voltage dosent help, i would underclock down from max 998.

Thank you both for the replies. I really appreciate it. I'll try overvolting and see how it goes tomorrow. If I still get reboots, I'll try running a stock rom for a few days and see how it performs.

jpzsports said:
Thank you both for the replies. I really appreciate it. I'll try overvolting and see how it goes tomorrow. If I still get reboots, I'll try running a stock rom for a few days and see how it performs.
Click to expand...
Click to collapse
Pardon me harping on my pet issue, but my phone does that if I underclock the CPU minimum to 128MHz. If I leave it at 245 I can go for days on end (I've seen uptimes of over 200 hours). For whatever that's worth...

musical_chairs said:
Pardon me harping on my pet issue, but my phone does that if I underclock the CPU minimum to 128MHz. If I leave it at 245 I can go for days on end (I've seen uptimes of over 200 hours). For whatever that's worth...
Click to expand...
Click to collapse
That is true, if i go down to 128 i have screen on freezing issues, and random reboots.

EDIT: Odd thing I just discovered. I borrowed my friend's seido extended battery for the dinc and popped it in my phone. After charging it up for a bit, I used the phone and within 10 minutes it started acting weird and rebooted. And after restarting, it rebooted again a few minutes later. So basically it was even worse. Any correlation here? Does the extended battery = more heat = that's why my phone is rebooting?
Click to expand...
Click to collapse
This is certainly a clue... but I don't know what it means...
I would not think the the extended battery would produce more heat. Since both batteries should be discharging at the same rates the heat output should be the same (just that the bigger one would take longer since it has more reserve). I've ran across stories of people who had phones that went completely wonky when they tried swapping batteries or getting a new one. I really don't know anything about it, I'm still on my stock battery.
It certainly couldn't hurt to try wiping your battery stats in clockwork. There is apparently some magic methodology to do it "correctly". I don't know about that either... here is a thread.
http://forum.xda-developers.com/showthread.php?t=1359395

Well just as an update, I tried the overvolting and clearing the battery stats but still got the reboots. I installed one of the Stock Sense ROMs and it's been running great with no reboots. Apparently my phone just doesn't like non-Sense ROMs for some reason. Oh well. At least I have a working phone. Pretty amazing how fast the stock rom runs!

Well, I guess it's good to hear the hardware is ok.
You still could try out the CM10s (or other JB roms) by starting off without installing your apps (if you can live without them). App compatibility might be your problem. Let it run for a while with no additional apps added. Then, add them back slowly (one or two a day or every couple of days) from the market only. If the reboots start up later on... you will probably recognize the one that is the source of trouble.
Of course you still have plenty of options in the gingerbread family to choose from. If you've never tried out some GB AOSP/CM roms, that would be worth a try. You've got stock roms, stock roms with sense removed, and the whole variety of AOSP/CM7 (official and unofficial) to choose from. Launchers...themes... mods... etc... all kinds of ways to change from whatever you start with. The only GB roms that I ever had problems with were the official "stable" CM7.0 and CM7.1 ROMs. I've been running one unofficial CM7 build (about 99.99% of the time...except to test drive newer stuff) for almost a year. Its been the best thing that's ever happened to my phone.