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[Q] Stock myTouch 4g, 100% CPU

Hi All,
I have a mt4g which is rooted with S=Off. I switch between the Sense launcher and Launcher Pro Plus. Usual apps on the phone, not too many.
For last week or so, I have been seeing that sometimes the phone gets really really laggy and Norton Util tells me that the CPU is 100%.
Also, I think most of the times, when this happens, I see a Sync icon up top. I do not sync a lot, just 2 GMail Inboxes and weather (every 6 hours). But I do see that Sync icon most of the times when this lagging happens.
I have tried removing apps, but this still seems to be a problem. I have see somewhere that turning the USB debugging to ON has helped many, but did not work for me.
I tried CM7 RC1 when it was out, but didnt like it (stock camera etc...) and I restored back to my stock ROM. Could this have done something?
Thanks
Ravneet

On your home screen hit menu key. Go to settings. Select accounts and sync. See what all is listed there. Chances are something with sense is constantly syncing.
Disable everything from syncing. See if the problem goes away. If so turn on one thing at a time until you find the culprit.
Hope that puts you in the right direction.
Sent from my HTC Glacier using XDA App

Have tried that. When I go there nothing is synching. Strange.
I have tried to remove all accounts from synch but still see the problem.
Went into recovery and wiped the cache about a hour ago. So far so good. Hope it stays this way.
Sent from my HTC Glacier using XDA App

I've noticed that there are apps that as soon as i download them, and open them that my cpu will go to 100% until I reboot my phone. System panel is a good app that isn't too obtrusive that will tell you exactly what app is doing what.
Have you installed anything new lately?

I uninstalled everything new.
Moreover I think every time this happens the battery is less than 30%. Maybe in low battery profile there are some apps which are over utilizing the CPU.
Sent from my HTC Glacier using XDA App

There's a couple threads like this. The stock Rom seems to have issues running rooted. Best bet would be to flash a different rom
Sent from my HTC Glacier using XDA Premium App

Turn on USB Debugging... See if that does anything

USB debugging is set to ON.
Sent from my HTC Glacier using XDA App

@NicGraner: Why would the stock ROM have problems with being rooted?
I am still having this problem. Uninstalled everything that is not important.
The phone just becomes unusable and I have to reboot. Un-installed Watchdog Lite too, as I thought since it is monitoring, it is taking up some CPU in background too.
No widgets on the home screens.
I guess I am gonna do a full refresh using the PDxxx.zip and go back to stock stock and then see what happens. not sure if I will lose my root once I do that.

Try the royal glacier rom it's solid stable and the sh!t
http://www.thepetitionsite.com/2/stop-t-mobile-from-being-bought-by-att/.......

I returned 5 phones for this exact problem, then I finally got one where the usb debugging trick actually worked. Before that I was just using OSmonitor from the market to see when I was hitting 100% then I would have to yank the battery as that was the only thing that would make it stop.
When I got this new phone I installed os monitor and waited for it to happen again, which it did, then I turned on usb debugging and watched my cpu usage graph drop to 0%. SUCCESS! Unfortunately since this was my 6th phone this solution seems to be the exception rather than the rule.
I did a lot of poking around on google trying to fix this and found a lot of people with different results. Try disabling t mobile sync and go to the myaccount app in the market and uninstall the updates. If that doesn't work try getting a new sim card and sd card, or just keep returning phones until t mobile offers to send you a g2x...
Also if you search around you'll see that this isn't just a problem with the mt4g. I found multiple threads where this happens on the nexus one, and several galaxy s phones. I really hope google is aware of this.
Sent from my HTC Glacier using XDA App

@johnsmith970: Thanks for the info. I will try calling TMO tonight and see what they say.
I am really bugged by this now. The phone gets totally unusable once this happens.

They will say to do a factory reset. Every tech support person I talked to told me to do that. This didn't solve the problem for me at all. It still exhibited the same symptoms on a fresh reset and not even signed in to google.
I would advise calling htc support just to let them know you are having this problem. Sending back a half a dozen phones per customer can't be good for anyones wallet or their peace of mind.
Sent from my HTC Glacier using XDA App

I have no idea why the stock rom doesn't like being rooted it's just what's been said and the solution which is most widely given (and mostly worked unless theres an underlying problem) is to flash a custom rom.

OK! I have more information for anyone interested.
I am tracking processes now in OS Monitor app from Market.
Most of the times it is the bluetooth daemon (bluetoothd) that goes bonkers. I was connected to my GPS in my car while driving, and when I came out of the car...the bluetoothd is going bonkers...looks like it may be trying to 'find' the device it was connected to. At the same time logcat2 process is also utilizing 30+% of the CPU.
I turned off Bluetooth and both the processes went away
So let me see if this sticks for couple of days.
Thanks

Nicgraner said:
I have no idea why the stock rom doesn't like being rooted it's just what's been said and the solution which is most widely given (and mostly worked unless theres an underlying problem) is to flash a custom rom.
Click to expand...
Click to collapse
I wasn't even rooted.

If you want to keep stock rom this is what I did and its absolutely solid.
Install this stock rom:
http://forum.xda-developers.com/showthread.php?t=1042586
After installing this rom flash faux123 first time kernel. After its all booted up reboot back into recovery and flash faux123 cfs rc3 kernel. I have my cpu set at 1200mhz and everything is gravy.
Sent from my HTC Glacier using XDA App

Why does my phone slow down at night?

Seriously, around 10pm at night my phones touchscreen becomes very slow and unresponsive and the only way to fix it is a reboot. this only happens when connected to wi-fi and only at night.
More over when playing games sometimes it seems to stop being a multi-touch screen. that is to say playing Gangstar for example if i am walking forward and press the attack button the virtual analog stick stops responding.
Is my phone defective or is this a common problem? I am on an unrooted desire s from Three.

SetCPU/ Juice Defender/ Any other crapware that could be screwing with your processes installed?
Which radio do you have installed? You can update your radio without rooting.

I dont have setcpu or juice defender, i have lookout mobile. might that be doing it? also using cloud based text prediction with swiftkey x.
As for the radio i'm fairly new to android, how do i find that out?
Android 2.3.3
Sense 2.1
Baseband version 20.28I.30.085AU_3805.06.02.03_M
Kernal 2.6.35.10-g2ee27f5
[email protected]#1
Wed Jun 8 19:20:03 CST 2011
Build number 1.47.771.2 CL78999 release-keys
software number 1.47.771.2
If all that gibberish helps?

I have lookout. No slow down here.
Sent from my HTC Desire S using xda premium

yeah I didn't think that would be causing it. It's just weird. I guess I'll look at using a newer radio or wait for the official update due this week sometime.
Sent from my HTC Desire S using XDA App

Uppy said:
yeah I didn't think that would be causing it. It's just weird. I guess I'll look at using a newer radio or wait for the official update due this week sometime.
Sent from my HTC Desire S using XDA App
Click to expand...
Click to collapse
I can't recommend either of those. If it was your radio you'd see poor performance across the board, not just kicking in a set time.
The official update seems to have more problems and issues than Jordan. I see a new thread daily in the Q&A section about new issues since the OTA update. Avoid it like you'd avoid Jordan.
The best way to rule out user error is to factory reset. If it's a hardware fault of the phone, the problem will persist and you know it (unfortunately) needs to go back for repair. Backup what you need, and try it. After the restore, try not to put anything back on app wise until after 10pm. Perhaps do the wipe at 9pm. Use google maps to test multi-touch. Mybackup Pro from the market, although not free, does have a trial period (or it used to) that should suffice for this experiment. Plus for non-rooted users, it's worth paying for as a backup app. Can even save your home-screen arrangement.
If it stops then you know it was something you had installed/set-up or a hiccup with your ROM. To find out which from here it is trial-and-error. Install this which gives you back the battery usage monitor Froyo (Android 2.2) used to have....
http://forum.xda-developers.com/showthread.php?t=1179809
I'm assuming here that poor laggy screen response will go hand-in-hand with battery drain. Something kicking off at 10pm on WiFi should make itself apparent by moving quickly up the list between 9pm and 11pm.
Let me know if this helps. If not we can try a few other ideas out.

Thank you, I tried a factory reset last week, the problem was fine for a while but this weekend it started again, once again playing gangstar or any game that requires multi touch becomes unresponsive and te only way to fix it is a soft reset. I guess I got a defective phone. damn. its only 2 weeks old too.

Uppy said:
Thank you, I tried a factory reset last week, the problem was fine for a while but this weekend it started again, once again playing gangstar or any game that requires multi touch becomes unresponsive and te only way to fix it is a soft reset. I guess I got a defective phone. damn. its only 2 weeks old too.
Click to expand...
Click to collapse
So all is fine until gangstar goes on? I must admit i don't play many games, but it does sound like the game is at the root of this. Any other similar reports on the game in the market? Tried emailing the dev? Still don't understand why 10pm would be significant. Is it ok playing this game at other times? What happens if you manually change your clock to 9:55pm during the day?
Sent from my HTC Desire S using xda premium

No not just gangstar, Gameboid, N64oid, GBAoid, NOVA, Spider-Man, most games.
I know but its always 10pm and happens every few hours after that until I go to bed. its just bizarre but the time might be a coincidense?

This may be a bit "out there" and a wild guess, but are you using a non-official charger when you play games? Say at around 10pm? I have heard that the cheap chargers from Hong Kong / China although they spit out 5VDC, it's such a noisy unrectified rippled DC output it hampers touch screen performance. See these examples...
http://www.youtube.com/watch?v=ejja4601NGQ
And this thread seems to sound like your problems...
http://forum.xda-developers.com/showthread.php?t=1141352
Edit: This is the on I was looking for....http://www.youtube.com/watch?v=DpDyMykRH9M

Wait, when I'm at my girlfriends house I use her blade charger, might that do it?
Sent from my HTC Desire S using XDA App

Best way to check would be to use that multi touch test app mentioned in the last clip. Should tell you if your chargers output is causing the multi touch issue. Gotta be worth a try. HTC are taking up to 5 Weeks to get repairs done. My friend returned his desire s recently (fried eMMC chip) and that's how long it took!
Sent from my HTC Desire S using xda premium

Thanks wnp, i've come to the conclusion that it's faulty however. "Ghost images" are now starting to appear on my phone. Like right now even though I'm on the xda app I can faintly see my sense clock and icons.
Very frustrating.
Sent from my HTC Desire S using XDA App

[Q] Nexus S random reboot and bug help!

Since I updated my Nexus S (i9020a to be exact) to ICS 4.0.4, my phone has been randomly rebooting like everyday! I did manually update it but I got stock Android and also I am unrooted not have my bootloader unlocked. Why is this happening so frequently? Should I factory reset my phone?

kyokeun1234 said:
Since I updated my Nexus S (i9020a to be exact) to ICS 4.0.4, my phone has been randomly rebooting like everyday! I did manually update it but I got stock Android and also I am unrooted not have my bootloader unlocked. Why is this happening so frequently? Should I factory reset my phone?
Click to expand...
Click to collapse
Try that yes
Sent from my Nexus S using xda premium

I just did. No reboot yet... hoping that this worth my data...
Sent from my Nexus S using XDA

I also had a spontaneous reboot a couple of days after I updated to 4.0.4.
It's only been four days total, so I'll be keeping an eye on it.
Sent from my Nexus S using xda premium

nope... didn't get it there...
maybe you should wipe your cache and dalvik-cache... and don't forget to fix permissions...

savantist said:
nope... didn't get it there...
maybe you should wipe your cache and dalvik-cache... and don't forget to fix permissions...
Click to expand...
Click to collapse
The thing is I'm not rooted and it seems that factory resetting actually did a job cuz no reboot so far... I'll update forum if this method works...
Sent from my Nexus S using XDA

Personally I've had several occurences of random reboots and actually at the phone lock into a reboot loop till I pulled the battery.
I think the issue is RAM management. The Nexus S doesn't have as much RAM as most tablets and it's younger sister the Galaxy Nexus. Something in how the OS decides which of the background services should be terminated and cached under heavy RAM load seems to be part of the problem.
For example, I seem to have improved my phone stability by removing apps that update in the background and don't need to (UAL, I'm looking at you ) and disabling background updates in other applications (TripIt, PodKicker Pro, etc) to prevent them from leaving background services running. That seems to have helped in my case.

[email protected] said:
Personally I've had several occurences of random reboots and actually at the phone lock into a reboot loop till I pulled the battery.
I think the issue is RAM management. The Nexus S doesn't have as much RAM as most tablets and it's younger sister the Galaxy Nexus. Something in how the OS decides which of the background services should be terminated and cached under heavy RAM load seems to be part of the problem.
For example, I seem to have improved my phone stability by removing apps that update in the background and don't need to (UAL, I'm looking at you ) and disabling background updates in other applications (TripIt, PodKicker Pro, etc) to prevent them from leaving background services running. That seems to have helped in my case.
Click to expand...
Click to collapse
You actually might be right! Ics probably is optimized for phone with duel core and at least 1gb of ram...
Sent from my Nexus S using XDA

kyokeun1234 said:
Since I updated my Nexus S (i9020a to be exact) to ICS 4.0.4, my phone has been randomly rebooting like everyday! I did manually update it but I got stock Android and also I am unrooted not have my bootloader unlocked. Why is this happening so frequently? Should I factory reset my phone?
Click to expand...
Click to collapse
wipe data may solve this issue.

I have been running Pete's Bugless Beast which has both the ROM and Kernel updated to 4.0.4. Never had a random reboot.
I doubt it is a memory issue. When my phone doesn't have a foreground app open it usually has 130 MB ~ 150 MB free. I never see it go below 100 MB.

AeroEchelon said:
I have been running Pete's Bugless Beast which has both the ROM and Kernel updated to 4.0.4. Never had a random reboot.
I doubt it is a memory issue. When my phone doesn't have a foreground app open it usually has 130 MB ~ 150 MB free. I never see it go below 100 MB.
Click to expand...
Click to collapse
My phone is not rooted, so is there any way to fix it without flashing anything?
Sent from my Nexus S using XDA

Exactly when is it powercycling?
Is it when running a certain app? When plugged in? When on standby? When you set it down or bump it?
There a number of different reasons the phone could be powercycling.
If it's while running a certain app or completely at random while you're not using it, unprevoked, first try hard resetting it. That will resolve the majority of issues.
If it's when you set it down or it's bumped, it's an issue with the battery making contact. Remove your battery, clean the contacts gently with a pencil eraser, make sure the contacts are clean and free from pocket lint on the phone itself and reinsert the battery.
If it's still doing it after a reset, it could be your processor. The best way I've found to test your processor is to max it out. You can do this by running a benchmark app over and over while everything on your phone is running. I personally use "Neocore" (available in the Play Store). Turn on your bluetooth, wifi, max your screen brightness, gps, every battery sucking processor running setting available. Run Neocore as 'Interactive Mode'. If you run that for an hour without powercycling, your processor is good. If it powercycles, you have a bad processor and should have your phone replaced through Samsung warranty.
Best of luck to you!

Random reboot
My phone is rebooting at least 15 times a day !
It is very random : during a phone call/installing an app/unlock the phone/writing with keyboard/phone is idle...
Applications are also often not responding...
I did a factory reset/wipe data several times but it didnt change anything.
Phone :Nexus S i9023
Carrier : unlocked ( HK )
OS/build number : Android 4.04/IMM76D
A really big amount of people posted the same issue on google mobile forum. ( i can't post link yet as it is my first post ) title "Random reboot of nexus with Android 4" ( please google it ) , but nobody mentionned anything with CPU. Could it be really that many people having a default CPU ?

After my last post, no reboots for while but now reboots are back with increasing frequency.
Sent from my Nexus S using xda premium

I don't usually like resurrect a really old thread, but after a road trip where my Nexus S randomly rebooted 4-5 times while running Podkicker Pro and Maps Navigation I went and reset my device to factory defaults. The next day I had the phone reboot in the middle of a podcast. Today it rebooted halfway through the first ring when I received a call.
Seems to be, at least in my case, that the reboots are related to mp3 audio.
This lead me to find this bug logged against the galaxy nexus: http://code.google.com/p/android/issues/detail?id=22669
It doesn't provide an answer, but it does provide some insight. I think personally I might look at different ringtone formats and see if converting my custom ringtone to something other than MP3 will help, but I'm not optimistic.

Android OS Using Massive Data Amounts

Today, I downloaded an app called Swype Keyboard. It has worked fine with all my friends phones, but for some reason as soon as I downloaded that app, my data shot up 1000% more. I went through about 2GB of data in under 15 minutes. When I go to check out my data statistics, the major part of it is Android OS. It is saying that it is using 500MB (.5GB) of data, when normally, it is at the bottom with barely any data usage. I have no idea what is wrong and why my data shot up that much.
Everytime I went back and checked my data (every 2 mins) it would shoot up about .1GB. As soon as I uninstalled that app, it started getting slower, but it has still gone up a lot.
I was wondering if anyone knew what was wrong. I'm really hoping it wasn't the app because I really enjoy that app and wish that it is another problem.
Rooted and running CM10 (RC 4) if that helps.
Thanks!

CM10.1 reports data usage incorrectly.

Yup, RC 4 (I think) has a math calculation error in the OS itself. So you didn't use that much I assure you, the next RC fixed the problem
Sent from my SCH-I535 using xda app-developers app

Crashing every few minutes

My first post here. I've been lurking and learning for a year or more and this is the most knowledgeable place I know of.
I have the att version of this tablet and I am having serious crashing issues. I can use an app for about 20 minutes or so and it will blue screen and restart itself. After it happens once it will do it every few minutes until I leave it alone for a while. Sometimes I need to hard restart it and sometimes it will restart on its own but the screen doesn't come on. Only sound. As far as I can tell it's not overheating and this will happen even if I install nothing from the play store and just use the factory apps.
I have reset to factory many times and reinstalled the firmware with kies and that didn't help. I have returned the tablet to att for a replacement and I have the same problem with the replacement. I'm past the 14 days now and would need to return to Samsung but I don't want to do that if there is something I can do on my own.
Anyone else having these issues or can point me in the right direction to fix this?
Sent from my SAMSUNG-SM-G900A using XDA Free mobile app

I am sad to say that I am experiencing the same issue. I have noticed that I experience the issue more when playing games and / or when there is a lag in data transfer in an application. I can tell this usually when playing a game that is synchronized with the server I will experience the blue screen of death and when I restart and load the game again the game is several moves behind where I actually was. I usually don't experience this error in a lot of other applications especially word processing applications, but I have noticed that it is an issue. I assume its software related, and though it is frustrating, I'm glad to know I'm not the only one.
For a short time I thought that it was related to frequent use of the touchscreen, but I'm not sure that this is true. I don't feel like mine restarts once every 20 minutes.
Sadly I have not found a solution to the problem. Any help would be greatly appreciated. If anyone needs any logs or system information; if you can tell me how to send it I would gladly send it.
Sent from my SAMSUNG-SM-P907A using XDA Free mobile app

Yes. It is very nice to know I'm not the only person having the issue.
20 minutes is really more of an average. Sometimes I can go longer without an issue but it is guaranteed it will crash.
You bring up a great point that I didn't notice. It is more frequent when it is an app that uses a lot of data.
Sent from my SAMSUNG-SM-G900A using XDA Free mobile app

No such issues on the international P905... Not in any of the games I play (It does 6 hours straight without issue) nor in data-heavy apps.
So it's likely AT&T-branded related.

My ATT version occasionally has a few apps that crash. I just restart and usually it's good. It is the same apps that do it so I don't thinks it the tablet.

I am experiencing the same thing on my P907. Can't seem to nail down the culprit.

Are any of you that are having this issue rooted?

Isun said:
Are any of you that are having this issue rooted?
Click to expand...
Click to collapse
I am but I believe I saw this happen before I had rooted. Its odd its never rebooted when I am using anything. It seems to happen when its idle./
Jeff

Earthdog said:
I am but I believe I saw this happen before I had rooted. Its odd its never rebooted when I am using anything. It seems to happen when its idle./
Jeff
Click to expand...
Click to collapse
I had the same issue then realized it was connected to Knox. I had 'Frozen' all Knox connected apps after I rooted an thought that might be it. I did a new root and it worked fine till I installed SuperSu which was not the issue specification but rather the fact that it disables Knox during the installation. I did one more clean wipe then when I rooted this time I just left Knox alone and I have had zero random reboots or crashes and I have not tripped Knox.

No, no root. Stock. I have minimised the frequency by switching from samsung keyboard to the swipe keyboard but it still occurs.
Sent from my SAMSUNG-SM-P907A using XDA Free mobile app

It happened when it was stock and it happens rooted. It's gotten to the point now that I went back to my iPad. I'm not liking the iPad since I've switched but I just can't use the note with it crashing all the time. I don't know what else to try.
Sent from my SAMSUNG-SM-G900A using XDA Free mobile app

I've seen a report or two about stability issues related to micro USB cards. If any of you are using one it may behoove you to try shutting down, removing the card and running without it for a while just to rule that out. Sometimes a corrupted card can do it when an application writes or reads from a particular location of the card. It's worth a shot.

Mine doesn't crash. But I feel it freezes occasionally. Itis actually subtle, but I can feel it. Especially, I certainly feel that my note 3 runs more smoothly then the note pro 12.2. Mine is a wifi version. Has anyone else got the same feeling? How can I optimize the device?

dhu6719 said:
Mine doesn't crash. But I feel it freezes occasionally. Itis actually subtle, but I can feel it. Especially, I certainly feel that my note 3 runs more smoothly then the note pro 12.2. Mine is a wifi version. Has anyone else got the same feeling? How can I optimize the device?
Click to expand...
Click to collapse
Do you use a microsd card? Most cards are really slow compared to internal memory. The Note Pro seems to install whatever it can on External-sd when adding a new app. Go into application manager to move all apps back to internal storage. See if that helps with the stutters and freezing.
Sent from my SM-P900 using Tapatalk

dodo99x said:
Do you use a microsd card? Most cards are really slow compared to internal memory. The Note Pro seems to install whatever it can on External-sd when adding a new app. Go into application manager to move all apps back to internal storage. See if that helps with the stutters and freezing.
Sent from my SM-P900 using Tapatalk
Click to expand...
Click to collapse
All my apps are installed internally. I got some time to run the benchmark tests and the scores all seemed to be normal. However, in Antutu, the memory score of the note pro is about 60% of the score of note 3. Could the memory be the reason for the stutters?

So I called Samsung and I am sending it in for repair. As I said in my first post I already swapped for a new one at att and I have the same results so I'm not thrilled about sending this in just to have the same issues with whatever they send back to. Be it a new tablet or if they say mine is fixed. I didn't pay over $900 for something I can't use so I will get this resolved one way or another. I will report back when it's returned to me.
Sent from my SAMSUNG-SM-G900A using XDA Free mobile app

I think I may have licked it and not really sure why but I've gone from a dozen crashes a day to zero for the last few days. I went into Kies and did a Firmware Upgrade and told it to completely wipe out all of my data. It downloaded the firmware and reinstalled, I rerooted restored everything from Titanium Backup and its all good so far... Something to consider

joscwy said:
I am sad to say that I am experiencing the same issue. I have noticed that I experience the issue more when playing games and / or when there is a lag in data transfer in an application. I can tell this usually when playing a game that is synchronized with the server I will experience the blue screen of death and when I restart and load the game again the game is several moves behind where I actually was. I usually don't experience this error in a lot of other applications especially word processing applications, but I have noticed that it is an issue. I assume its software related, and though it is frustrating, I'm glad to know I'm not the only one.
For a short time I thought that it was related to frequent use of the touchscreen, but I'm not sure that this is true. I don't feel like mine restarts once every 20 minutes.
Sadly I have not found a solution to the problem. Any help would be greatly appreciated. If anyone needs any logs or system information; if you can tell me how to send it I would gladly send it.
Sent from my SAMSUNG-SM-P907A using XDA Free mobile app
Click to expand...
Click to collapse
im having the same problem. it occurs almost always when im playing games. I thought this device's hardware was top notvh for a tablet but it can only run on the lowest quality settings of most games. im very disappointed.

I experience this too, but it usually happens when the cover is open and it's on the back side of the device, it sometimes interact with magnetic sensor (some little movements of the case) and causes soft-reboot.
Nothing happens if cover is on the front side.

I should have my tablet back tonight or tomorrow depending on UPS. they sent me an email stating they replaced a component (whatever that is) and updated the software. We'll see if that fixes it.
Sent from my SAMSUNG-SM-G900A using XDA Free mobile app