[Q] Random reboots - EVO 4G Q&A, Help & Troubleshooting

Since installing CM7.1, my phone has been rebooting randomly -- like 5-8 times a week.
It usually happens when using Google Navigation (but not always); and usually when in the car and plugged in to charger (but not always.)
I thought it was CM, so switched to Sense (Swagged Out Stock) -- but it's still happening -- usually when I most need the navigation!
I tried the GPSCLRX thing; didn't help.
Could it be the car charger? The heat from being on the dashboard? Any way to narrow down the cause?
Thanks!

Is it a full boot or a quick boot? Gingerbread does a quick boot, where it just shows the bootanimation for a few seconds and then reentered the OS, when the system runs out of memory.
Sent from my PC36100

It's a full restart -- goes back to the white HTC screen!

Does your phone get hot at all? How many apps do you have running in the background? Phone's usually restart if they run out of memory, get too hot, run out of battery (which I assume isn't the case for you), or have a software error. Checking the temp and the background processes on your phone can help eliminate a few causes and let us know which is the most likely culprit.

I've had this problem before when my phone gets hot. Also more frequently happening when charging and running navigation. This happened a lot when running CM. I changed to deck and it doesn't happen too often now. Not sure if it was coincidental.

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[Q] Troubleshoot reboots

Hi,
My Desire has a rebooting problem...
If I play a cpu-intensive game like Angry Birds, it will always reboot after a while (gets hot and then reboots). Usually goes into a boot loop and I have to pull the battery.
I've noticed that if I do somewhat intensive tasks while the phone is charging, it also reboots - again this appears heat-related. again, boot loop, and battery pull.
I can put up with these reboots - b/c I can predict when they're going to happen. however,if anyone has ideas about how to prevent apps from overheating the cpu, please let me know...
However, sometimes it's just sitting on the desk in front of me and it reboots. this is much more of a pain. I have a LogCat reader installed but how do I pinpoint the apps causing the reboot in the log? Alternatively, I'm wondering if I leave it plugged into ADB, can that record the reason for a reboot?
Any advice is much appreciated.
I'm on AuraxTSense with an ext2 partition, in case that helps

[Q] Normal Stability?

Hello all. Ever since I got my EVO, I've been experiencing random restarts, even before I was rooted. Right now, I am running CM7.1 and Tiamat from kernel manager, and I probably have to do about 8 restarts and 5 battery pulls a day, no matter how often I use the phone. For instance, today I woke up and had to do a battery pull because the screen would not turn on. The light was also still orange despite the battery being fully charged. I unplugged it at about 8 in the morning and by 10 with no use, I had to pull the battery again because the screen was frozen off once again. Once I got it back on, the battery was down to 80%. I tried using it and half the apps would force close immediately, so I restarted... You get the picture. Some roms have been better than others, and kernels don't seem to make any difference, and I figured it was about normal. Then, I installed what is supposed to be a really buggy CM7 on my touchpad, and have only had to restart it once in the past 2 days, which makes me question how stable my phone actually should be. Does it seem like I should take it in to sprint, or is my experience about normal?
I also never overclock because of my already poor battery life and have tried underclocking, but don't see any noticible difference
bump. should I post somewhere else?
Run an RUU but stay s-off for the moment and see if the problem persists. If your phone begins working properly, then you can flash a recovery and flash whatever rom you want - but don't restore your backup. I'd start totally fresh if RUUing fixes your problems, don't restore your apps and data, just download them from the Market as you need them.
If the RUU doesn't help and the problem continues, take it in to Sprint. It's up to you if you want to s-on before taking it in - I've never heard of anyone getting problems from Sprint with s-off but without root, but I think it's a general rule to do so.
I hope everything works out for you!
Sent from my Evo + MIUI using Tapatalk!
I have heard and seen on here many times that random reboots are caused by battery problems, and bad software installs. Try calibrating the battery, also use battery monitor widget to see what ur batt temps are. Then reinstall all your apps, do not restore them then see if that helps.
Sent from my PC36100 using XDA App
I'll try an RUU when I get enough time to do some thorough testing. I have reinstalled everything directly from the market multiple times since I've had the phone, and also have used a total of four batteries with no change in behavior. I Will try the RUU soon though. Thanks for the replies

[Q] Phone reloads itself with no error messages, almost like hot boot.

I was wondering if anyone else was seeing this issue or knew what was causing it. My phone has for the longest time, been doing almost a hot boot on it's own, where I will notice the phone is at my desk, I see it come on by itself, menu and back buttons lit, and it looks like it reloads all the os. No errors, or crash errors, just on it's own. I have nothing stock uninstalled (everything on the phone is stock, rom included), did have some disabled via TB, but to test I allowed all services/apps to load as when I got the phone, still does the same thing, like every other day. I have the latest OTA, rooted, with the freeza update for LI3, running apex launcher pro and of course some apps/widgets like everyone else. This happens no matter what, but always on it's own. I have a widget that shows memory usage, and I'll have sometimes 300mb free, and once this "hot boot" the phone does, i'll be back at over 1.2 gb free, so I know it's reloading everything on the phone. is there any way of figuring out what is causing this, cause I know this isn't normal behavior. Any help would be great!
so I think I found the answer.. Via WIFI settings I had enabled under Advanced: Keep WIFI on during sleep, NEVER (increases data usage)... Of course when you'd then try to use your phone after some time, you'd notice it switch radios from 3/4G to WIFI, and sometimes it would take a few seconds to do that. When I had that option enabled the OS would reset itself after about a day of use, as I described above, not a full restart, no crash/force close errors, you'd just see the phone come on, and basically everything reloading.. After trouble shooting whether it was an app or something causing this, it was, I believe, the WIFI setting, since I changed it to keeping WIFI on "always" during sleep, in that advanced setting, the phone has not done the issue described. Going on 79 hours with no issues, which is the longest I've seen since noticing this problem.. So hopefully in the future if this happens to others, this method might be what was the problem/cure..
I always keep wifi on.. it seems to save a lot more power than 3g and its clearly faster =p.
Sent from my SPH-L710 using xda app-developers app

[Q] Reboot problem when not charging

I have had my P607T for a couple of months now. It is box stock no changes. Over the last few weeks I have noticed that it will reboot while using various apps. (Fliipboard, Chrome, Clash of Clans, Papyrus...) They don't seem to all be heavy graphics or network. The only symptom is that the screen starts to flash then "bang" reboot (and trouble rebooting when not plugged in). It would not be too annoying except that it will loose wifi settings and the wallpaper. I have tried different wallpapers (saw a thread blaming the live wallpapers ) Unloaded some apps (had another phone issue with FitBit and HTC blink on my N4). I stay away from CoC (my base has been raided so often now ...). Any thoughts? I am really trying to like this tablet more than my old ASUS Transformer but this reboot and reset wifi is a pain.
Thanks in Advance,
marka
manderson8898 said:
I have had my P607T for a couple of months now. It is box stock no changes. Over the last few weeks I have noticed that it will reboot while using various apps. (Fliipboard, Chrome, Clash of Clans, Papyrus...) They don't seem to all be heavy graphics or network. The only symptom is that the screen starts to flash then "bang" reboot (and trouble rebooting when not plugged in). It would not be too annoying except that it will loose wifi settings and the wallpaper. I have tried different wallpapers (saw a thread blaming the live wallpapers ) Unloaded some apps (had another phone issue with FitBit and HTC blink on my N4). I stay away from CoC (my base has been raided so often now ...). Any thoughts? I am really trying to like this tablet more than my old ASUS Transformer but this reboot and reset wifi is a pain.
Thanks in Advance,
marka
Click to expand...
Click to collapse
Have you tried a factory reset? I'd make tmobile replace it
was hoping to avoid the reset button. Tried it and still giving trouble it rebooted while restoring apps. I bought the tablet on ebay, I don't think TMO will take it back. oh well I'll keep poking about.
thanks,
I experience exactly the same problem since the update to 4.4.2 (kitkat): The screen starts to flash, suddenly the tablet reboots. I tried a factory reset multiple times, also removed the SD card and reflashed the ROM via KIES, nothing helped so far. Also, even when plugged into the outlet for several hours the tablet didn't charge at all (I think it stopped charging when the screen saver kicks in).
A couple of weeks ago I filed a RMA request (my dealer sent the tablet to Samsung), yesterday I got it back. It was charged at 60% and when I plugged it to the outlet it actually charged (even when the screen went off). But after about one hour (the battery was still > 60%) the flashing reappeared and after a while the tablet started to reboot again. Interestingly the battery now showed only 2% and the low battery warning appeared.
I think the problem might occur only when the battery runs low (which happens very fast as something seems to drain the battery), while android still shows a much higher battery level . Never experienced these problems when the tablet was plugged in so far.
Wall-E said:
I experience exactly the same problem since the update to 4.4.2 (kitkat): The screen starts to flash, suddenly the tablet reboots. I tried a factory reset multiple times, also removed the SD card and reflashed the ROM via KIES, nothing helped so far. Also, even when plugged into the outlet for several hours the tablet didn't charge at all (I think it stopped charging when the screen saver kicks in).
A couple of weeks ago I filed a RMA request (my dealer sent the tablet to Samsung), yesterday I got it back. It was charged at 60% and when I plugged it to the outlet it actually charged (even when the screen went off). But after about one hour (the battery was still > 60%) the flashing reappeared and after a while the tablet started to reboot again. Interestingly the battery now showed only 2% and the low battery warning appeared.
I think the problem might occur only when the battery runs low (which happens very fast as something seems to drain the battery), while android still shows a much higher battery level . Never experienced these problems when the tablet was plugged in so far.
Click to expand...
Click to collapse
At least I don't feel so alone with this issue... I have been paying more attention to my build up process since the factory reset. I found, the other night quite by accident, that when I logged in to Twitter the reboot started. So for the next few days I have left Twitter off the machine and it is doing better. I suspect that something is hitting the power drain (like you mention) and that causes it to have problems. In that thought I have also turned off the power saving mode and auto screen now just to add to the list of things I am avoiding.
Rgds,
manderson8898 said:
At least I don't feel so alone with this issue... I have been paying more attention to my build up process since the factory reset. I found, the other night quite by accident, that when I logged in to Twitter the reboot started. So for the next few days I have left Twitter off the machine and it is doing better. I suspect that something is hitting the power drain (like you mention) and that causes it to have problems. In that thought I have also turned off the power saving mode and auto screen now just to add to the list of things I am avoiding.
Rgds,
Click to expand...
Click to collapse
Have you considered rooting and using root apps to stop the apps from being able to do such things?

[Q] Won't stay boot/stay on (mostly) when on battery. Really strange, please help.

Completely stock T-Mo m8. Been running Lollipop since the OTA came through, and it has worked fine for the longest time, no problems other than a bit of lag, even after clearing the cache.
A couple of days ago, the phone began to shut down whenever (seemingly) any app was launched when on battery, and then would not boot on repeated attempts. It doesn't seem to make it past the first stage of the bootloader (first HTC screen, pre-animation), most of the time. Sometimes it will make it to the T-Mobile animation and then give up.
While plugged in, it boots and works fine 9/10 times, but sometimes gives some resistance to booting. If it is unplugged and any apps are launched, it shuts down as if the battery were removed. Though, the whole while the battery seems normal, no weird fluctuations or sudden drops in battery level.
If it is unplugged after having booted and it is relatively inactive (no apps launched, or any processes, i.e. alarms, syncing, downloads, etc.), it will remain powered on.
I have attempted to Factory Reset a couple of times, and cleared the cache a couple of times. The problem persists. I can boot into recovery, though I am not rooted.
Is my battery in need of a replacement or some such? I would like to remain fully stock if at all possible. I may be able to get a replacement phone out of T-Mobile, but would also like to avoid that.

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