Loss of Service:Fix(kinda) test - Samsung Epic 4G Touch

Hey as everyone knows there are some people having LOS and it will remain that way until after a reboot. First I'm rooted but not with a custom kernel. I'm on the stock kernel(just flashed CWM and then root.zip) So I have had LOS a few times since I got my phone. Just a few minutes ago I got LOS after a phone call and it remained that way. AbsolutZeroGI on IRC wanted me to try something whlile I had LOS before I rebooted. I went into the task manager, selected the ram tab and then pressed the clear button. That didnt bring service back but after I did that I did get the roaming notification(but still had LOS) so I plugged my phone into my PC(not to try to fix it but to boot into recovery) and then I noticed my signal came back without a reboot as soon as I plugged in the cable. Now I'm not really sure if/why plugging in the USB would correct this or if it was just a coincidence or if it fixed it. Although I know the other times I had LOS it didnt come back until a reboot no matter how long I waited.. So I would like to run a test..
The next time you get LOS go into the taskmanager, select the ram tab and then click clear, then plug your phone into your PC (Edit: While your screen is off). Did your signal come back or do you still have LOS?
EDIT:
I just got home, was sending a few text messages had a signal, put my phone down, came back and turned on the screen and I had no service. So I came back to my PC to test this out again. When I came back to the PC I had a PM from AbsolutZeroGI. He told me he just got the LOS and the steps didnt work. And so far I've been the only one to get it to come back without a reboot. So I tried again.. I plugged it in and unplugged it multiple times... nothing.. still no service, I tried to remember the exact steps I did the first time and I thought "when I plugged it in and it worked was my screen on or off" So I tried one more time. I turned the screen off, waited a few minutes, had the usb cable plugged into the pc then plugged in the phone. I waited a few more seconds, turned the screen on and boom, I had almost all the bars but no 3G icon and a few seconds later the 3g icon came back on.
So here is my theory: When the screen goes off maybe there is a bug in the sleep process that somehow causes the LOS. When you wake it, whatever it is that disabled it, doesnt re-enable it so it "thinks" it's still sleeping, until it's back in sleep mode and something like plugging in the usb wakes it for usb debugging. So I think it somehow goes into a deep sleep and doesnt fully wake up when the screen goes on, but something like plugging it in fires another separate process that does fully wake it.

Thank you in advance for everyone who tests this out for us. If we can find a real method that works every time we can start working on a temporary fix until Sammy gives us a firmware update so LOS won't be so bothersome.

i have not experienced the los, but have experienced very poor signal when trying to connect to the net. but when i rebooted the signal did get better

Although I know some people stated that they had this issue on unrooted phones as well as rooted, I myself had the issue with my first Epic Touch after I rooted. Before I rooted, I never experienced the issue.
I exchanged my phone Thursday because there was no way to return to stock at the time and I haven't experienced the LOS of service at all.

plmiller0905 said:
Although I know some people stated that they had this issue on unrooted phones as well as rooted, I myself had the issue with my first Epic Touch after I rooted. Before I rooted, I never experienced the issue.
I exchanged my phone Thursday because there was no way to return to stock at the time and I haven't experienced the LOS of service at all.
Click to expand...
Click to collapse
Hmm maybe I'll install the stock kernel and see of that fixes it. I only had my phone since yesterday and it was rooted after an hour or so of having it and since I've had at least 5 Los. :-( but I have read the same that people claim its happening to them as well without ever rooting
Sent from my SPH-D710 using XDA App

I'll definitely try in a few when my los kicks in. Had my first touch for three days and no los occurrences but my new one has had them 5 times in two days.
Sent from my SPH-D710 using xda premium

I've had my phone since launch day. I didn't root until the 20th. I had no LOS in that time I was completely stock. Right after I installed bubby's CWM and root the problems started. I mean the same night. It had happened several times until I went back to the stock kernel. I have since had the LOS for literally 5 seconds while it switched from Sprint to roaming and service was right back. Not a problem since. I'm not saying these other kernels are the complete problem and that the phone is not without bugs. I just think that maybe the other kernels make the problem (if any) worse.
---------- Post added at 07:58 PM ---------- Previous post was at 07:56 PM ----------
jirafabo said:
I'll definitely try in a few when my los kicks in. Had my first touch for three days and no los occurrences but my new one has had them 5 times in two days.
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
The other night I had 5 times in two hours. Literally!!

I'm completely stock and picked up my phone on Launch day. I had several LOS during the first few days. I updated my PRL, Profile, Firmware etc. and it hasn't been an issue since.
I do have an issue roaming, as in my phone wont.

Ok guys, I'm going to update the OP but here is a new development.
I just got home, was sending a few text messages had a signal, put my phone down, came back and turned on the screen and I had no service. So I came back to my PC to test this out again. When I came back to the PC I had a PM from AbsolutZeroGI. He told me he just got the LOS and the steps didnt work. And so far I've been the only one to get it to come back without a reboot. So I tried again.. I plugged it in and unplugged it multiple times... nothing.. still no service, I tried to remember the exact steps I did the first time and I thought "when I plugged it in and it worked was my screen on or off" So I tried one more time. I turned the screen off, waited a few minutes, had the usb cable plugged into the pc then plugged in the phone. I waited a few more seconds, turned the screen on and boom, I had almost all the bars but no 3G icon and a few seconds later the 3g icon came back on.
So here is my theory: When the screen goes off maybe there is a bug in the sleep process that somehow causes the LOS. When you wake it, whatever it is that disabled it, doesnt re-enable it so it "thinks" it's still sleeping, until it's back in sleep mode and something like plugging in the usb wakes it for usb debugging. So I think it somehow goes into a deep sleep and doesnt fully wake up when the screen goes on, but something like plugging it in fires another separate process that does fully wake it.

graffixnyc said:
So here is my theory: When the screen goes off maybe there is a bug in the sleep process that somehow causes the LOS. When you wake it, whatever it is that disabled it, doesnt re-enable it so it "thinks" it's still sleeping, until it's back in sleep mode and something like plugging in the usb wakes it for usb debugging. So I think it somehow goes into a deep sleep and doesnt fully wake up when the screen goes on, but something like plugging it in fires another separate process that does fully wake it.
Click to expand...
Click to collapse
I saw that theory from someone else around here as well. Definitely seems like something is going to sleep and not coming back on and the modified kernels seem to exacerbate the issue for some reason. (Maybe the source Samsung released is older than what the phone shipped with and the issue was improved between the two versions?)

Nothing against the devs or anything like that, but this LOS issue is why I havent rerooted my current Epic Touch.
As much as I want to flash that new
midnight roms, I'm holding back just for that reason.
This message was developed and sent from my SGSII-EPIC 4G TOUCH!

graffixnyc said:
So here is my theory: When the screen goes off maybe there is a bug in the sleep process that somehow causes the LOS. When you wake it, whatever it is that disabled it, doesnt re-enable it so it "thinks" it's still sleeping, until it's back in sleep mode and something like plugging in the usb wakes it for usb debugging. So I think it somehow goes into a deep sleep and doesnt fully wake up when the screen goes on, but something like plugging it in fires another separate process that does fully wake it.
Click to expand...
Click to collapse
That wouldn't work, because in reality, the phone checks cell towers for new calls something like every 5-10 seconds. No sleep for the wicked radio.
No. It is definitely something that disables the radio entirely.
---------- Post added at 10:56 PM ---------- Previous post was at 10:53 PM ----------
plmiller0905 said:
Nothing against the devs or anything like that, but this LOS issue is why I havent rerooted my current Epic Touch.
As much as I want to flash that new
midnight roms, I'm holding back just for that reason.
This message was developed and sent from my SGSII-EPIC 4G TOUCH!
Click to expand...
Click to collapse
There's no reason not to root the phone now AT ALL.
The current root method of:
1) Install custom recovery+kernel,
2) Flash su binary,
3) Flash stock recovery+kernel
---
The current root method does nothing but add files to /system partition -
you change nothing else in the operation of the phone but add root privileges.
Flashing roms while they are in beta though, that's just asking for trouble, unless you are testing for the rom builder.

I have the LOS icon at this very moment, yet I just received a call? Also, I plugged it into my computer, but nothing changed.

Hi all. I just had LOS and tried to use my car charger instead of my computer. It didn't fix the issue but I did notice that the charging led wouldn't illuminate. after reboot the phone gets signal and the led is working fine. I don't know if that is significant but wanted to mention it.
Sent from my SPH-D710 using XDA App

Interesting thread. Ive had mine for 3 days now and havent experienced this at all.
Sent from my SPH-D710 using Tapatalk

about 5 times a day when i try to place a call the call get stuck in "dialing" mode and never connects. if I try to end it it is still stuck in the task bar and there is no way to make another call unless I reboot. The signal bars look normal. is this the LOS?

I bought two E4GT's on launch day and I told the lady to just activate them and I would do the rest of the setup. She was messing around with them for awhile and I asked her what was going on, and she said they were doing a system update.
That makes me think that the factory firmware had the bug, but they already had an update at launch. If that is the case, I think there's a good chance the source code released was for the original firmware, which reintroduced the bug into all the custom kernels.
This could also explain why some unrooted users have the los - maybe their Sprint store was too lazy to do the update for them (although they should have got a notice for the ota update by now).
FWIW, neither of our phones have this issue and both are still stock. Baseband version is EG30.
Sent from my SPH-D710 using xda premium

leond said:
about 5 times a day when i try to place a call the call get stuck in "dialing" mode and never connects. if I try to end it it is still stuck in the task bar and there is no way to make another call unless I reboot. The signal bars look normal. is this the LOS?
Click to expand...
Click to collapse
No, but that is major suckage, happens to me once a day. Makes me want to punch babies.
los, which I get too, is when you get the no smoking signal instead of a cdma signal.

I went to root+stock kernel and the problem is gone and LOS is gone to

txmikester said:
I bought two E4GT's on launch day and I told the lady to just activate them and I would do the rest of the setup. She was messing around with them for awhile and I asked her what was going on, and she said they were doing a system update.
That makes me think that the factory firmware had the bug, but they already had an update at launch. If that is the case, I think there's a good chance the source code released was for the original firmware, which reintroduced the bug into all the custom kernels.
This could also explain why some unrooted users have the los - maybe their Sprint store was too lazy to do the update for them (although they should have got a notice for the ota update by now).
FWIW, neither of our phones have this issue and both are still stock. Baseband version is EG30.
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
There was no update when these phones were released. If she was activating the phone then she was 9/10 referring to a profile update and prl update which each phone does when being activated.
Sent from my SPH-D710 using xda premium

Related

[Q] Working brick?

So I have been a long time follower of XDA, did all sorts of things with my Vibrant and just recently got the SGS2 from Sprint. A few days ago I flashed Calkulin's E4GT v2.6 and since then everything has gone down hill:
> The phone started acting like it was "charging" with nothing plugged in, red LED light stayed on and the battery had the charge symbol.
> Car mode began coming on over and over again.
> The phone would freeze and after I took out the battery it would automatically restart with me pushing the power button once the battery was re-inserted.
In hopes to just be down with it I flashed it back to stock with ODIN and everything seemed fine...
Now the phone is constantly freezing, Displaying that I have no service, The touch screen becomes unresponsive while charging, Car mode is still trying to launch.. not as frequently but it has happened. Other minor issues was the pattern lock would display when I woke up the phone even though I never set one...but I could do anything with the pattern to unlock it, even just touching a circle. Worse part in my opinion is either the phone will not recognize the PC or the PC will no longer recognize the phone so I can try ODIN again, same PC, drivers and USB cord being is.
Any suggestions on how I can remedy the situation?
Same thing happened to me, when I tried flashing an AIO over Calkulins you're pretty much done. You'll have to unroot and go to sprint. I ended up getting a new one since I was within the 2 week exchange.
monk3yguy said:
So I have been a long time follower of XDA, did all sorts of things with my Vibrant and just recently got the SGS2 from Sprint. A few days ago I flashed Calkulin's E4GT v2.6 and since then everything has gone down hill:
> The phone started acting like it was "charging" with nothing plugged in, red LED light stayed on and the battery had the charge symbol.
> Car mode began coming on over and over again.
> The phone would freeze and after I took out the battery it would automatically restart with me pushing the power button once the battery was re-inserted.
In hopes to just be down with it I flashed it back to stock with ODIN and everything seemed fine...
Now the phone is constantly freezing, Displaying that I have no service, The touch screen becomes unresponsive while charging, Car mode is still trying to launch.. not as frequently but it has happened. Other minor issues was the pattern lock would display when I woke up the phone even though I never set one...but I could do anything with the pattern to unlock it, even just touching a circle. Worse part in my opinion is either the phone will not recognize the PC or the PC will no longer recognize the phone so I can try ODIN again, same PC, drivers and USB cord being is.
Any suggestions on how I can remedy the situation?
Click to expand...
Click to collapse
What exactly did you use when you did this? I flashed it back to stock with ODIN
Maybe link to the file(s) you used?
Also maybe the exact steps you took. None of this sounds right. And if you flashed the complete EG30 tar you would be back exactly to when you purchased the phone. Everything would be overwritten so there really wouldn't be anything left to linger and cause issues.
Try a ##786# reset
Just_s said:
What exactly did you use when you did this? I flashed it back to stock with ODIN
Maybe link to the file(s) you used?
Also maybe the exact steps you took. None of this sounds right. And if you flashed the complete EG30 tar you would be back exactly to when you purchased the phone. Everything would be overwritten so there really wouldn't be anything left to linger and cause issues.
Click to expand...
Click to collapse
Once the device started acting funny, I basically pulled out the battery until I got home where I could flash it back.
This is the stock files I have saved to my computer:
http://forum.xda-developers.com/showthread.php?t=1351761
The phone is still somewhat usable, 3G, voice calls, everything works as normal until some of the symptoms start up again. Primarily the issues I am having is the phone completely freezing and occasionally displaying no service and of course not recognizing any PC connection.
Try a ##786# reset from dialer.
To get your MSL, in adb shell, type "getprop ril.MSL" without the quotes. If you use Android Terminal make sure you aren't using the Swype keyboard or it'll auto capitalize the "I" despite being told not to.
Initially, sounds like the USB port has some **** in it or damaged ;p
First off thank you everyone who has replied, I have definitely looked into all of your suggestions throughout the day. Here is what I have come up with.
I tried the ##786# for a clear reboot, all the symptoms still continued =(
I started figiding with the micro USB port and finally was able to get my computer and phone to connect to each other, I have also been reading that the port also causes the phone to spontaneous "ghost" charge and activate car mode.
So I am pretty sure it is a hardware issue, in particular the usb port. Tomorrow I am going to get the parts and make a jig to reset the binary counter and just take it in to Sprint and get an exchange.

Power button not working suddenly

Last night while using my phone it suddenly rebooted itself, and when it came back on the power button no longer worked. I could use the volume buttons to wake the phone, but even that stopped working after a while. I went to sleep and let it charge overnight, and when I woke up, all was working normally. Its been normal all day until a few min ago, the phone rebooted and now once again the power button wont work. Anyone had this problem? Any suggestions, besides take it to Sprint, which I will do if it continues?
Well I took it to a Sprint store and the tech said the button is physically fine, and worked when doing a hard reset but once the phone came back on it went back to not working again. So he thinks it's a software issue and ordered me a replacement. And my E4GT is completely stock, never rooted. Just decided to let u guys know just in case anyone else happens to have the same problem.
Sent from my SPH-D710 using xda premium
just wondering how long you have had your phone before this bug, any other issues before this.
Pp.
sent from my microwave ala XDA premium.
Shift2win said:
Well I took it to a Sprint store and the tech said the button is physically fine, and worked when doing a hard reset but once the phone came back on it went back to not working again. So he thinks it's a software issue and ordered me a replacement. And my E4GT is completely stock, never rooted. Just decided to let u guys know just in case anyone else happens to have the same problem.
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
If it is a software problem which it sounds like to me I would root that thing and throw a rom on there and see if that works. Preferably Phantom Hackers Blazer rom 4.1 Pure win!
PanchoPlanet said:
just wondering how long you have had your phone before this bug, any other issues before this.
Pp.
sent from my microwave ala XDA premium.
Click to expand...
Click to collapse
I bought the phone brand new in October, and no i havent had ANY issues before this. This just came out of the blue
Sent from my SPH-D710 using xda premium
I have almost the same issue, mine will reboot and the battery will drop from 90% to 50 or 40% once i had 59% rebooted and drop to only 6% i changed different batts, changed roms back to stock and the same, i will take to sprint
Shift2win said:
Last night while using my phone it suddenly rebooted itself, and when it came back on the power button no longer worked. I could use the volume buttons to wake the phone, but even that stopped working after a while. I went to sleep and let it charge overnight, and when I woke up, all was working normally. Its been normal all day until a few min ago, the phone rebooted and now once again the power button wont work. Anyone had this problem? Any suggestions, besides take it to Sprint, which I will do if it continues?
Click to expand...
Click to collapse
rbtrucking said:
If it is a software problem which it sounds like to me I would root that thing and throw a rom on there and see if that works. Preferably Phantom Hackers Blazer rom 4.1 Pure win!
Click to expand...
Click to collapse
my phone did the same thing i rooted it an put caulk rom an it worked again...been working ever since
---------- Post added at 06:06 PM ---------- Previous post was at 06:04 PM ----------
latoso said:
I have almost the same issue, mine will reboot and the battery will drop from 90% to 50 or 40% once i had 59% rebooted and drop to only 6% i changed different batts, changed roms back to stock and the same, i will take to sprint
Click to expand...
Click to collapse
if u are rooted u might wanna wipe the battery stats first an see if that helps.go into recovery an look for wipe its the last one ..mite save u a trip to sprint
rbtrucking said:
If it is a software problem which it sounds like to me I would root that thing and throw a rom on there and see if that works. Preferably Phantom Hackers Blazer rom 4.1 Pure win!
Click to expand...
Click to collapse
I have this problem right now it came out of no where and was working fine till now. When I flashed a new rom my power button still wont work.
My power button isn't working either. My phone randomly reboots and isn't usable. My buddy gave me his old Samsung Moment to use It's like I'm back in the stone age with this thing. No insurance on my E4GT either FML.
IA-32e said:
My power button isn't working either. My phone randomly reboots and isn't usable. My buddy gave me his old Samsung Moment to use It's like I'm back in the stone age with this thing. No insurance on my E4GT either FML.
Click to expand...
Click to collapse
It's still under a year old isn't it? Take it in and spend the $35.00 for Sprint to troubleshoot and replace it under warranty.
I was having this issue with my e4gt so i tried to flash a new ROM onto it. That didn't work, so I restored it to factory using this one-click Odin method http://forum.xda-developers.com/showthread.php?t=1721229
Since the power button didn't function for me I had to use Terminal Emulator to reboot into download mode. Restoring to factory seemed to have restored the power button. I had a few phantom reboots but the phone has been running for 13 hours right now. Seems to be fixed. I plan on waiting a week before rooting it again, in case i decide to take it to Sprint.
Hope this helps
HELP!!
hooshR said:
I was having this issue with my e4gt so i tried to flash a new ROM onto it. That didn't work, so I restored it to factory using this one-click Odin method http://forum.xda-developers.com/showthread.php?t=1721229
Since the power button didn't function for me I had to use Terminal Emulator to reboot into download mode. Restoring to factory seemed to have restored the power button. I had a few phantom reboots but the phone has been running for 13 hours right now. Seems to be fixed. I plan on waiting a week before rooting it again, in case i decide to take it to Sprint.
Hope this helps
Click to expand...
Click to collapse
did that fix the problem? im on the universe 2.1 rom and for some odd reason while i left my phone on the table it all of a sudden rebooted and my power button wasnt working either? well can you let me know if that fixed the problem for you? I cant use the power button at all and whenever i take out my battery and put it back in, it automatically starts my phone up right when i put the battery in. but please let me know if urs is fine now. thanks
sh*t, nevermind i just tried to do the odin one click and it restored my factory settings and everything but the power button still doesnt work... =( damnit!!
ok nevermind that too... sorry for blowing up your post but just wanted to inform that i just applied more pressure to the power button and held it there for a few seconds and then let go and all of a sudden the power button started working again... i was reading through other posts about this and they said that it happens often with this phone... but this is how i ended up fixing mine if the odin one click doesnt work...
http://mobiletechvideos.mybigcommerce.com/samsung-epic-4g-touch/
For those of you who don't have insurance, or those who this option is cheaper, they can replace the power button for $35. I didn't look if it includes shipping. If it were me, and I had a little more money, I'd get the power button and usb port changed to new ones at the same time. The port might go out eventually and it saves you the time and hassle of sending it in again. Hell, $75 is still cheaper than paying the $100 deductible if sprint tries to make you pay that for a refurb.
My phone started rebooting constantly since last week. I went back to the ICS 4.03 ROM and it was ok for a few days and then it starting rebooting again yesterday. Today once the phone screen goes off it comes back on and when i press the power button to turn the screen off, it restarts. The only time it acts normal is when it is charging. I do have insurance so I'm thinking about removing the superuser app and taking it to sprint. My question is will they try fixing it before giving me a replacement & will it be refurbished? I'm at wit's end with this phone. I loved this phone until last week
acrite04 said:
My phone started rebooting constantly since last week. I went back to the ICS 4.03 ROM and it was ok for a few days and then it starting rebooting again yesterday. Today once the phone screen goes off it comes back on and when i press the power button to turn the screen off, it restarts. The only time it acts normal is when it is charging. I do have insurance so I'm thinking about removing the superuser app and taking it to sprint. My question is will they try fixing it before giving me a replacement & will it be refurbished? I'm at wit's end with this phone. I loved this phone until last week
Click to expand...
Click to collapse
If you can go back to gingerbread(clean install) you should give that a try before you go back to sprint and find your self back at square one after flashing ics, replacement phone may have gb installed. Run some stock rooted gb for a while and see what happens.
Pp.
Sent from my ginger infused Mayan calculator.
PanchoPlanet said:
If you can go back to gingerbread(clean install) you should give that a try before you go back to sprint and find your self back at square one after flashing ics, replacement phone may have gb installed. Run some stock rooted gb for a while and see what happens.
Pp.
Sent from my ginger infused Mayan calculator.
Click to expand...
Click to collapse
I did that & it was ok for a few days then it started again...today it worked better than most days but the power button still wont turn the screen off if I press it
I have the same symptoms with mine, which started 2 days ago while out of town. The only difference being my power button goes from hyper-sensitive in that if I even brush my finger by it it closes the screen to not registering anything no matter how hard I click. Any way to tell via logs, etc if this is hardware or software? Phone is unuseable with the constant reboots...
Update
Had been running Calks 3.0 before the power button issue, so decided to start over to see if it helped:
1) Ran Calks Format All
2) Reflashed 3.0
3) Ran his Bare ROM Converter
Result: Problem disappeared, so far. Will report back if anything changes, but worth a complete reformat and reflash try since I am out of warranty as an original adopter 9/16/11.
this just happened to me while running cm10 alphas. power button wouldn't work at all and occasionally it would just reboot.
i full wiped and installed one of agat's mods. we'll see what happens.
ShoePhone said:
Had been running Calks 3.0 before the power button issue, so decided to start over to see if it helped:
1) Ran Calks Format All
2) Reflashed 3.0
3) Ran his Bare ROM Converter
Result: Problem disappeared, so far. Will report back if anything changes, but worth a complete reformat and reflash try since I am out of warranty as an original adopter 9/16/11.
Click to expand...
Click to collapse
Everything was perfect since the re-flash UNTIL I took a flight and the same problem with the power button started again. Whats funny is the last time the same thing happened. Chain of events:
1) Two weeks ago phone was perfect running Calks 3.0 GB ROM and had been for the last 3-4 months. Stock rooted for 5 months prior.
2) Went to airport, phone went thru security scanner and boarded plane.
3) Prior to departing, checked phone and noticed the power button didnt turn screen back on.
4) Pulled battery/ put back in, and the phone rebooted without me pressing the power button, which it never had previously.
5) Phone boots back up to lockscreen, and notice the power button is hyper-sensitive (If I lightly brush my finger against it, the "Power Off, Reset, Recovery...." screen pops up. Its like the power button has become a capacitance button like the four at the bottom face of the phone.
6) Try using, and it randomly reboots, even completely avoiding the right edge of the phone (power button side)
7) If phone screen is allowed to go dark, power button wont awaken it, but volume buttons sometimes will...Also, plugging/unplugging into charger will awaken screen. If I reboot the phone with it charging, it turns off and goes into charging mode with the green battery bar graph.
8) Struggled with the phone screen turning on/off, randomly rebooting with/without touching, turning, using, etc.
9) Arrived home and after many attempts, booted into Rogue Recovery, wiped/all format/reflashed Calks 3.0/Bare ROM converter and phone was just as it was before....Until 5 days later when I boarded another flight.......Why?

Random reboots when in certain coverage area

I just had a weird problem start the other day. I was at work and my phone constantly rebooted throughout the night. When I left for the weekend it didn't do it at all again until I was driving past where I work. And now at work again it is rebooting over and over. My phone is rooted and I am using miui rom.
jah8551 said:
I just had a weird problem start the other day. I was at work and my phone constantly rebooted throughout the night. When I left for the weekend it didn't do it at all again until I was driving past where I work. And now at work again it is rebooting over and over. My phone is rooted and I am using miui rom.
Click to expand...
Click to collapse
This has been happening to me since switching to CM11. Every day on my commute to and from work the phone reboots when I drive through a particular area. I spent two hours in that area yesterday and my phone boot looped the entire time.
I am having the exact same problem. I thought I was going crazy, but I can literally repeat the reboots by walking to certain areas in my apartment building and on my commute to work, however not a single reboot the whole day at the office. SO STRANGE!
I'm glad I'm not the only one, I don't even know where to start, I haven't changed or downloaded anything on my phone in months.
Sent from my SPH-L710 using Tapatalk 4
I have done multiple roms, changed network variables and even odin'd back to stock...still happening.
I temporarily loaded stock and updated PRL and profile, yet the problem is still occurring. Logcat is useless because it rotates at startup, unless someone is aware of another way to see old logs?
I posted this on the CM thread, but figured it might help here as well. I connected my laptop on the drive home and captured logcat right up until the phone started rebooting. Maybe someone can make sense of this. Thanks in advance.
Wow, I thought I was going crazy! Same thing is happening to me as well.
Any updates? I'm still having this
Sent from my SPH-L710 using xda app-developers app
This is familiar to the problem I've been having on my phone running MOAR. The battery died while I was at my house and ever since I get constant reboots if I run DKP kernel, I flash the stock kernel bundled in the MOAR ROM and the reboots stop but I get not signal within a half mile or so radius of my house. I flashed back the stock ROM and modems and radios of all versions but nothing helps. I got the MSL code and did a reset via the ##786# menu but that didn't help. Sprint said it's probably a tower upgrade that's going on but other Sprint phones get signal/reception without any problem and they won't replace the phone because of a small crack on the screen.
maxpower12 said:
This is familiar to the problem I've been having on my phone running MOAR. The battery died while I was at my house and ever since I get constant reboots if I run DKP kernel, I flash the stock kernel bundled in the MOAR ROM and the reboots stop but I get not signal within a half mile or so radius of my house. I flashed back the stock ROM and modems and radios of all versions but nothing helps. I got the MSL code and did a reset via the ##786# menu but that didn't help. Sprint said it's probably a tower upgrade that's going on but other Sprint phones get signal/reception without any problem and they won't replace the phone because of a small crack on the screen.
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Click to collapse
Do you mean ##72786# ? Did you try updating your Modem to MK3 ? You can find it HERE.
prboy1969 said:
Do you mean ##72786# ? Did you try updating your Modem to MK3 ? You can find it HERE.
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Click to collapse
I've done both resets. There's another option in ##786# that wipes everything and reinstalls the ROM and reactivates the phone. I've tried the MK3 modem with no luck. Last night I was able to get the phone into LTE only mode in the ##3282# menu after several tries and the connection was stable, in CDMA only mode it disconnects constantly and reboots occasionally, same with CDMA/LTE mode. The problem with LTE only mode is that LTE is not available everywhere yet.
jah8551 said:
I just had a weird problem start the other day. I was at work and my phone constantly rebooted throughout the night. When I left for the weekend it didn't do it at all again until I was driving past where I work. And now at work again it is rebooting over and over. My phone is rooted and I am using miui rom.
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Click to collapse
Having the same issue since last week. I installed CM 10.2 and accidentally triggered the knox warranty, so can't even take it back to Sprint now. Afraid to go back to stock, as I've read that I may brick my phone. Stuck with constant reboot loop at home (unless I turn airplane mode). Has anyone found a fix? Please help... about to go to t-mobile and switch providers!
PS: Does anyone know how I can apply the ##72786# in CM 10.2? Is it possible?
yodaddyleo said:
Having the same issue since last week. I installed CM 10.2 and accidentally triggered the knox warranty, so can't even take it back to Sprint now. Afraid to go back to stock, as I've read that I may brick my phone. Stuck with constant reboot loop at home (unless I turn airplane mode). Has anyone found a fix? Please help... about to go to t-mobile and switch providers!
PS: Does anyone know how I can apply the ##72786# in CM 10.2? Is it possible?
Click to expand...
Click to collapse
I don't think dialer codes work on CM. I got the reboot loops to stop by flashing a different kernel but by doing this the phone has a very hard time keeping a connection to the tower. I noticed last night that the phone seems to have a problem connecting to LTE or eHRPD even if it's in CDMA only mode but seems fine if I go into ##DATA# and using my MSL code I change the network to EVDO only mode.
I'm also experiencing similar characteristics of an on going reboot. My phone has been doing this for the past two days, I've reverted to the stock ROM, updated my PRL and yet I'm in a constant reboot. I went to Sprint and they offered to re-install the stock ROM for a fee ($75), I laughed while the friendly consultant called me an idiot for rooting my device. Anyhow, I'm all ears for a solution and in hope to get this phone working again. Last resort, I may just bite the bullet and buy an S4...
Cheers!
EDIT: I was last using the Slim Bean 4.2 build
Interesting thing, my sister and brother each have an S3 with Sprint. They came to visit last night and my sister's phone goes into a reboot loop but my brother's phone is fine. They're both running stock 4.3 and unrooted. The problem seems to be with certain S3s not liking certain towers.
I'm having a very similar problem. I have a i9305 which keeps restarting on it's own. Seems completely random, today it has done it twice, yesterday it did it about 5 times. Sometimes I'm using it when it happens and sometimes it's just sitting on my desk. Also if the battery is below about 40% it will often go in to a boot loop when it restarts. It was doing it when stock, rooted it and flashed a couple different roms, still did it, back to stock now and it's continuing to restart randomly.
There's a lot of people having this issue if you do a google search. THere does seem to be a power button issue with a lot of S3's but mine doesn't have any of the other power button symptoms (such as turning on as soon as you insert the battery).
I'm reluctant to return the phone as I can't be arsed dealing with the warranty process and I rooted it
Similar problem on stock rooted 4.3 row with kt kernel. reboots seem to happen at my house and only in lte/cdma mode. At the same time I notice constant reception issues. In cdmal no problems at all.
Nice, I just set mine to CDMA instead of lte/cdma and no more problems, no more 4g but I don't care as long as my phone works
Sent from my SPH-L710 using Tapatalk 4
jah8551 said:
Nice, I just set mine to CDMA instead of lte/cdma and no more problems, no more 4g but I don't care as long as my phone works
Sent from my SPH-L710 using Tapatalk 4
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Click to collapse
If you get your MSL code you can go into ##DATA# and edit the "HDR/1X Selection" under "Others" and force the phone to be LTE only. It might take a several tries before the selection actually sticks and signal sometimes goes away for me momentarily. There's also the problem that LTE isn't available everywhere yet so when I leave my house I select LTE/CDMA in the regular networks connections menu and let the phone reboot.

[Q] Wifi doesn't start at boot

More often than not, when I start up my G pad, the Wifi does not turn on regardless of the way it was set before. Toggling the button on quick settings, or tying to turn it on manually in settings, does nothing; it says "turning on wifi", but it hangs. Rebooting usually fixes it, but sometimes requires more than one try.
Has anyone else experienced this? I'm hoping that it's a software glitch that will get fixed in the next ota update or when I flash my next rom, whichever comes first. If it's a hardware problem, however, I'd better return it before my rma period expires. Any ideas?
Thanks!
In the advanced setting under WiFi do you have the tablet set to keep WiFi on during sleep? I never turn mine off and do not have a problem. Using a v500 not a v510.
Sent from my LG-V500 using XDA Premium HD app
yojimboj said:
More often than not, when I start up my G pad, the Wifi does not turn on regardless of the way it was set before. Toggling the button on quick settings, or tying to turn it on manually in settings, does nothing; it says "turning on wifi", but it hangs. Rebooting usually fixes it, but sometimes requires more than one try.
Has anyone else experienced this? I'm hoping that it's a software glitch that will get fixed in the next ota update or when I flash my next rom, whichever comes first. If it's a hardware problem, however, I'd better return it before my rma period expires. Any ideas?
Thanks!
Click to expand...
Click to collapse
Yes, I've experienced it, if by starting up the G Pad you mean from it bring completely shut down, rather than sleeping. Also happens when doing a restart sometimes. As you say, a further restart sorts it out. I very rarely shut the tablet down or restart it though, usually I just let it sleep, so it hasn't really bothered me, except for the first time when I thought for a horrible moment the wireless hardware had died!
Wht if you don't want to use wifi when you boot the tablet? Then you have the wifi radio wasting battery from the start. Can't you install an app tht turns on the wifi at boot?
It took 6 reboots to get wifi working this mornino! Previously it had only taken 1-2 tries. It also had seemed on previous occasions that rebooting while unplugged would be more likely to successfully turn it on, but no luck; it failed multiple times both plugged and unplugged.
Needless to say, I will never turn the damn thing off if I can help it, but I'm not exactly happy about it.
LBJM, I rarely want to start up without having wifi enabled, but I suppose you could use apps like Tasker or Llama to turn it on or off under certain conditions.
LBJM said:
Wht if you don't want to use wifi when you boot the tablet? Then you have the wifi radio wasting battery from the start. Can't you install an app tht turns on the wifi at boot?
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Click to collapse
The issue isn't simply that Wi-Fi is off when the tablet first boots up, it's that it refuses to switch Wi-Fi on until it's restarted a second time, so don't think this would help.
---------- Post added 30th January 2014 at 12:01 AM ---------- Previous post was 29th January 2014 at 11:55 PM ----------
yojimboj said:
It took 6 reboots to get wifi working this mornino.
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Click to collapse
6 is getting a bit crazy! Thankfully a single restart worked for me on the couple of occasions it happened. I've actually ended up restarting a few times over the past week for other reasons, but haven't seen this issue occur again. I'm going to shut it down completely shortly, so will see what happens then.
I would take that in for a warranty replacement. That sounds like a dodgy network chip on the main board. I just restarted today and had no problem like what you mention.
Sent from my LG-V500 using XDA Premium 4 mobile app
I turn it off every night and in the almost couple of months that I have had my G Pad I have never had this problem.
Yeah I would RMA your Gpad. You shouldn't have to jump through hoops to turn on wifi.
Oddly, the issue has pretty much stopped - - just as well, since I was past my RMA date! I'm going to chalk this one up to some odd app interference, since it resolved with any rom updates or re-flashing.
Thanks again to everyone for their help!

Random Reboots?

I was just wondering if anyone else has an issue with their Note 4 rebooting randomly with no external input. This started happening with the Android 6.0 update both on the download from here and the AT&T official release, Any Ideas? I've already purchased a new battery due to a separate issue, any idea?
I had the same problem. The phone would freeze and randomly reboot. Sometimes the system crashes and asked me for the typed-in password (not fingerprint). Sometimes when I charge the phone, and unplug the power cable, the charging led stays lit and the battery has to be pulled. I decided to switch the battery with my wife's Note 4 and see if the effects remained. So far I haven't had any problems after switching the battery, so I believe the battery may be the cause of all these issues. I'll keep you updated on the issues.
I'm back. The battery replacement didn't fix the reboots. I think my phone's hardware is permanently damaged. :crying:
have you downgraded?
and can you help me with my problem?[
AlexanderDAB said:
have you downgraded?
and can you help me with my problem?[
Click to expand...
Click to collapse
I'm downgrading to stock 5.1.1 right now. I'll keep you updated. I placed an order for a Galaxy S7 Edge International Version (G935F) yesterday.
ajumatt said:
I'm downgrading to stock 5.1.1 right now. I'll keep you updated. I placed an order for a Galaxy S7 Edge International Version (G935F) yesterday.
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Click to collapse
can you downgrade to Android 5.0.1 and help me with my problem?
its something completely different to this topic
I've been having the same issue, started about 2 weeks ago. phone would start being sluggish then if I continue tapping on screen, it'll reboot. At least once I saw it go into recovery & reinstall firmware(?). Another time it just sat at the bootloader screen waiting for software download or something till I took out the battery. Most likely it's a software issue related to 6.0 update or updates afterwards. taking out the SD card helped a bit.
but basically got annoyed & upgraded to LG V20 today. Coincidentally, there was another person at the AT&T store with a Note 4 having the same issue.
Mine just rebooted twice on me a while ago, first is emergency calls only now the reboots then what. And yes the slow charging is a problem too. MM got serious issue dam att
Sent from my SAMSUNG-SM-N910A using XDA-Developers mobile app
adavis1201 said:
I was just wondering if anyone else has an issue with their Note 4 rebooting randomly with no external input. This started happening with the Android 6.0 update both on the download from here and the AT&T official release, Any Ideas? I've already purchased a new battery due to a separate issue, any idea?
Click to expand...
Click to collapse
use wakelock its an app u get it from play store.it makes ur cpu always running.some how it fixes the problem of random reboots. dl it and set it to partial lock (the 5th option)
Same problem. Just started a few weeks ago. REALLY frustrating having to enter my password every 3-4 minutes. NEVER buying another Samsung, too many damn issues with this phone.
My reboots tend to happen once the phone goes below 60% battery. It's fine above 60%. Once it goes below 50%, the reboots tend to happen with any intense network activity. The phone will often go from 50% to 22%. I forgot what the 30's and 40's look like. I will try the Wakelock app.
Ugh. I posted about this a few weeks ago. It's started happening more frequently and will occasionally go into a boot loop or show 0% battery even though there's a charge.
Has anyone found any solution? I haven't tried wiping / resetting but I'm getting close to trying it.
Here is a cautionary tale for you. My completely stock, unroooted phone started acting the same exact way. On the 4th or 5th battery pull (to fix a frozen screen) it just crapped out. It's totally unresponsive. Deader than a door nail. Tried everything. The download mode, discharging by power button depression/battery removal, etc. Adb shell command does not detect it. Nor Odin. Computer throws up a qhsusb_bulk error when I plug it into pc. I have NO CLUE how to fix it & I am desperately seeking a solution. Please proceed wisely with your oddly acting phones & don't let this happen to you.
k.babymamma said:
Here is a cautionary tale for you. My completely stock, unroooted phone started acting the same exact way. On the 4th or 5th battery pull (to fix a frozen screen) it just crapped out. It's totally unresponsive. Deader than a door nail. Tried everything. The download mode, discharging by power button depression/battery removal, etc. Adb shell command does not detect it. Nor Odin. Computer throws up a qhsusb_bulk error when I plug it into pc. I have NO CLUE how to fix it & I am desperately seeking a solution. Please proceed wisely with your oddly acting phones & don't let this happen to you.
Click to expand...
Click to collapse
Same issue. Just got off the phone with Samsung support, all possibility of having this particular phone with this particular issue sent in for evaluation has been suspended. Translation, they know it is an issue and will not stand by the changes they push to their products (latest OS). I am researching the prospect of legal action since THEY pushed the new OS against my request. Shouldn't that affect the warranty or coverage? Consulting my attorney friends as we speak. Will let you know. I am not sure how WakeLock will help, it is not going to sleep, it is repeatedly power cycling through a kernel process until the battery overheats or it reboots.
Same issue
Since Marshmallow, my 910A will get sluggish or freeze, shut down, sometimes reboot and sometimes just brick (temporarily). Sometimes--more often in recent days, I get a "dll_mmc read fail" message and the target that says do not stop downloading. No matter what I've tried--factory and soft resets, cache clearing, battery pull, replacement, and SD card switch, contacting AT&T and Samsung rep--it doesn't seem to change. This is a daily issue and becoming more frequent. Any suggestions or do I just need a new phone? Thank you.

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