So, there seems to be a CPU monitor built into the stock ROM. I thought that maybe flashing a custom kernel would fix it, but I have a custom kernel on my G3 and SetCPU still seems to be fighting something else on the system. I can set a range of frequencies that I want to use, but something continues to set the minimum level to something other than what I have chose. It doesn't last but a couple of seconds, but I would love to know what is causing this to happen in the first place. Does anyone know if there is a service that is causing this to happen? I've been trying to figure this out for a couple of months now, but no one seems to have an answer for it.
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So I hve been going nuts trying to figure out why my phone keeps rebooting. I'm in another country so getting a replacement isn't an option for me and it seems it hasn't helped some people anyways (After a while it comes back).
THe only constant I see is that the CPU usage after maybe 30 seconds after the phone comes on stays at 95-100% all the time. Only thing that makes sense is that the phone is shutting itself down before it melts down.
This kinda makes sense since it seems the more I try to do the more random the reboots become.....and battery life is beyond horrible. I did the steps to increase battery life and battery life is making this phone virtually unusable off AC power (EXample: Leaving from my Brother in laws apartment and travelling 10 floors down to my car results in 89% battery left. Phone is dead within the hour if i use it and 3 or 4 if leave it idling.
I tried killing all the tasks that te phone starts up with but nothing change the CPU usage. I thought maybe it was the kernel but I flashed the latest one from this thread: http://forum.xda-developers.com/show...RI+version+PRL [the undervolted version]. Not sure if that would help (THe info in this forums is so scattered and disorganized it makes my head spin.....and I'm a techie).
Also try flashing the combo package of the latest radio, PRI, NV etc and that doesn't work also....CPU usage is still through the roof.
I just got this a few days ago. I'm currently on:
HBoot 2.10 [s-off]
H/W 0004
Basband 2.15.00.11.19 [I was on this before I was rooted]
Kernel version 2.6.32.27-SBC-net-4.2.2-less-havs [email protected] #19 [Just flashed] ROM myn's Warm TwoPointTwo 9RLS 4)
Software: 3.3-.651.3
PRI Version: 1.90_0003
PRL Version: 60662
Can I get some help from people smarter then me. I'm at the end of my rope and I'm not convinced a handset swap is going to fix my issue esp. since this was BNIB straight from Sprint and other people who've had this issue and had a new phone seem to somehow have it later.
If i leave it alone it will reboot on its own eventually. If i switch from airport to turning on the cell data, reboot, turning on wifi......reboot, toggling 4g.......reboot, After a few web page searches......reboot, open up an application.....reboot.
This isn't temperature related as far as I can tell.....The app I have monitoring temp has seen this happen at 25 degrees and sometimes less.
PLEASE HELP
Ok.. firs tthings first..
when your phone is unstable and rebooting, dont use an undervolt kernel. Undervolt kernels provide less power to the CPU at set frequencies.
In my case, I discovered undervolting CAUSED reboots, because my phone couldnt handle anything under 950mv... there is such a range in the quality of the components that theres no way to always say yes, undervolting this much will work with every phone.
so 1: Use stock kernel ( for whatever rom your using.. also use a well established rom, not one of the 'hey, last night i got bored and made this' ones.. it may work, but it may be so buggy its what is causing your crash )
2: do a fresh install. run the phone with 0 apps added, see if it has the same issue. If it does, may be the phone itself. If it doesnt, its one of your apps.. install one at a time, and see if it improves.
and you made two posts why?
Didn't know they would move it. Posted in the wrong forum and they moved it as well. lOL. My bad.
I've been on a stock kernel up until I started trying different kernels. I will try the other one then.
My CPU usage is the problem I think. I have both memoryusage and system monitor and both report the same thing.....95-100% usage constantly. If I could resolve that then maybe my phone would work properly.
Didn't know they would move it. Posted in the wrong forum and they moved it as well. lOL. My bad.
I've been on a stock kernel up until I started trying different kernels. I will try the other one then.
My CPU usage is the problem I think. I have both memoryusage and system monitor and both report the same thing.....95-100% usage constantly. If I could resolve that then maybe my phone would work properly.
I have an issue with any custom ROM's I've tried, when the phone sleeps my cell radio turns off and I cant receive phone calls, sms's and the like.. The service comes back after a minute of having the screen on, but its a real hassle. I dont have this issue with either of the stock roms, both 4.0.1 and 4.0.2 but anything custom causes me issues.. I wipe data, cache and dalvik and take care not to install any apps and the issue still arises.. I noticed there are a few other people having similar issues, but unlike them I do not have to reboot to get my cell radio working and its not just data, I have also tried the gamut of radio's but I am hesitant to flash radios constantly since my understanding is flashing them has a greater risk to brick your phone should something happen. Does anyone know anything I could try? I dont understand how custom roms all do this but a stock one wont..
set minimum CPU frequency to 700 mhz.
also try other radios (UGLA4 works very well)... flashing a radio won't brick your phone as long as its for your phone.. which in this case, just dont flash I515 radios (verizon)
what rom? kernel?
yannisthegreek has a thread about this; not uncommon by the sounds of it.
Purely conjecture on my part, but I think it's a power issue, i.e. your phone isn't supplying the radio with enough power to kick start it from sleep. Basing this on the fact that a particular kernel (Fugo IIRC?) or upping your min freq to 700 seems to fix the issue. I've yet to experience this however.
I'm going to try setting it to 700mhz right now, I've flashed CM9, Modaco, Codename Android, Revolution, used the Kernel that was provided with those ROMS and Franco's and Trinity, I have also tried every radio as well with the same results.. it does make sense the way mudferret explained it and also explains why it will start up after my phones out of sleep mode and running faster, the weird thing is that this just happened one day, my phone was fine running a custom rom and Franco's kernel and then one day I notice that I had calls going right to voice mail..
So glad I found this thread. I've been dealing with the same issue. People tell me when they try to call they get a fast busy signal. If I wake my phone for about a minute everything works again. I am going to try Fugo IIRC? kernel and see what that does.
Looks like setting my kernel to 700mhz did the trick.. using Franco Kernel and Modaco custom rom, this was driving me nuts.. I'm a happy camper now, thanks for the help guys..
flindil said:
Looks like setting my kernel to 700mhz did the trick.. using Franco Kernel and Modaco custom rom, this was driving me nuts.. I'm a happy camper now, thanks for the help guys..
Click to expand...
Click to collapse
Glad to see it up and running. I never had this problem but I always had my minimum frequency set to 700 MHz because I think I heard franco say something about it helps battery blah blah blah... it was a while back but I don't remember the full details
Yeah, I read that he said the difference on battery use was negligible.. that could have been why custom ROMS and kernels were working for me previously.
Sent from my Galaxy Nexus using xda premium
I don't believe that setting min freq to 700mhz solves anything that relates to ril.
If you were talking about voltages, that would be another story...
bk201doesntexist said:
I don't believe that setting min freq to 700mhz solves anything that relates to ril.
If you were talking about voltages, that would be another story...
Click to expand...
Click to collapse
What's the voltage differential between the 350 and 700 slots, if any?
Edit: I ask because I can't see my voltages on my current kernel
Have same problem post 4.0.4 update
I started seeing this too after a manual 4.0.4 update to my GSM Nexus. The phone is still stock (and was prior to the flash) with ClockWorkMod the only thing added. Still troubleshooting.
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UPDATE: Noticed that this does not happen while phone is being charged. I've tried playing around with a CPU speed program, but I haven't yet figured out if the settings are taking properly.
Okay does any one have this same problem or am i just doing something wrong?
Every time i let my kindle sit with the screen off after about 30 minutes or so, and I assume it keeps going and getting stuck in sleep mode but the only way for me to get it turned back on is to do the whole power button for 20 seconds and then reboot. Am I not being patient enough with it or is there some trick to getting the screen back on that i haven't found yet? Because I've tried multiple different things and there isn't a disable sleep mode option in my rom just the option to extend the time, even though its pretty much useless. But can anyone help me with this?
what rom are you on?
Right now I'm on Hell Fire 1.1 but last week i was running CM9 Reloaded and it did the same exact thing.
I was going to give a long speech about how people need to READ before installing any new roms but considering the Hellfire thread doesn't list what works and what doesn't, I guess it's not entirely your fault
It's called "sleep of death" (SOD). Some ICS roms have problems with it and some don't. The same could be said about certain individual devices. You could boost your minimum CPU usage to 600Mhz or more, or try a different rom. Though, it should be noted that changing your CPU settings will affect battery life.
okay that makes sense i had no idea that most of the new roms have problems with it. but I'll probably try to up the min cpu usage i suppose the difference between 600 MHz and 300 MHz isn't going to be a true killer for the amount i use it but which rom or roms would you recommend? That don't have this problem I'd really like to try barebones but every time i try to flash it my Kindle goes crazy so i gave up on trying with it.
I've been having this problem for some time now and let me tell you, it is so god damn annoying.
For some reason at least once a day the phone just constantly reboots by itself in a loop until the battery is pulled out and put back in, then the next day it just does the same old thing.
I know for a fact it is not kernel related because I've tried Franco, AK, and Lean Kernel, all have the same issue.
I've also tried stock rom and Xylon rom.
I turned off SR and the problem is still there, no underclocking no undervolting, completely stock rom/kernel.
Does anyone know how I can fix this? Is this app related?
Any help would be appreciated.
Thanks
I can see how that would be very irritating. There are a lot of possibilities for the cause, but I think the first thing I would do is use Trickster app or equivalent to set my cpu frequency down to about 1000 MHz and see if that makes it stop rebooting for a few days. If so, then you might have a device that can't tolerate a normal level of heat. In that case I'd try to get it replaced, or just live with a lower maximum frequency. Or you could try turning up the voltage for 1200 MHz a little, maybe 10 mV, and see if that makes it stop.
If neither of those worked, I would start looking for a rogue app or leftover script from a previous installation. Try wiping /system as well as cache, dalvik, and factory reset next time you install a ROM.
I guess I figured out the problem.
This only happens if I restart the phone while it is connected to the charger.
Sent from my Galaxy Nexus using Tapatalk 2
I've never really been active in these forums, but I read them plenty and usually find fixes to all my problems and answers to all my questions. This one has eluded me however. Here's how it is:
I rooted my phone many months ago and I don't remember exactly how I did it. I installed busybox and xposed and have been using my phone without tweaking it for a while. So now that I have time and the interest, I decided to do something about the very hot device in my hands. That's besides the point, although some of it may have something to do with the problem. Anyway, it turns out that even when all cores are active the last 2 cores in the big cluster remain unused, they bear no cpu load as reported by Kernel Auditor. It's quite annoying as I feel like the extra strain on the other cores is causing the heat curve to be a bit steeper than it should be, since the inactive cores are still generating heat with them being on and ramping up in operating frequency. Let alone, not getting the full value of performance out of this phone.
I've tried doing a full wipe to see if that fixed it, it didn't. I tried a custom rom and kernel and it still hasn't been fixed. Has anyone else had a problem like this?
tl;dr - the last 2 big cores are online but do not process anything
*UPDATE*
So it turns out that the problem was HTC pnp manager. Not sure why, but after I turned it off, all the cores were working properly. After turning it back on the cores stopped working again. I'm going to try switching to the default thermal_engine.conf file.
**UPDATE**
The default thermal_engine conf file did not fix the problem. I can only speculate that either something is wrong with pnp manager, or something is wrong with the hardware. I would like to find a way to fix this. I can manage without pnp manager, however, without pnp manager I have to run user apps, scripts, etc. to accomplish the same thing as pnp manager which could increase cpu usage and potentially cause slightly more heat and quicker battery drain. If I can use pnp manager and maintain use of all cores, I would prefer to do so. I'll take any suggestions, if you want to help but need more info I'd be happy to give more.
@ironman120693
How did you disable pnp manager?????
My phone doesn't have a custom kernel so is there any other way to disable it?????