Hot and slow without apparent reason - LG V20 Questions & Answers

I have my AT&T V20 since launch. When is working fine, I love it. BUT, at times it gets hot and slow with no apparent reason. If it was slower, it would be considered frozen (as in not respoding at all). When it does that I hate the phone and I want to make it a 1000 pieces.
I tried new battery, factory reset, removing apps and the thermal paste mod which gave a temporary improvement. I also stopped using the sd card in suspicion that had something to do with it.
Now, I am just patient until the Pixel 4 comes out which looks to be one of my top up coming alternatives. Definitely my next phone will not be LG. My previous phone was the Nexus 5 and I am moving on from LG. I am hoping to get a phone that is not carrier branded and has vowifi and volte on AT&T.
In the meantime, any tips for things I can do or apps that can help will be appreciated.
Sent from my LG-H910 using Tapatalk

Hi I came on here today to start my own thread about my issue but your problem seems to be similar so I'll join in here If you don't mind.
I have a vs995 but I'm using H910 (at&t) firmware so I could have FM radio. Everything was going great really great untill I finally started using it was my daily driver.
So yes my device is certainty getting hot and suddenly cold like your device. I listen to a lot of online radio or music and I noticed my device is so hot I could feel the heat from it in my pocket which is just a no go. I get rapid battery drain as well not surprisingly when you feel heat.
My device is a new refurb. I did the cpu throttling test and I got very good results, hardly any red, so I decided not to do the thermal mod and won't do it untill I fix this problem. I did change the thermal-config file which I need to revert to stock to see if that is causing it but I don't thing it is.
I have frozen a lot of AT&T apps using Titanium backup. I had installed Greenify, Naptime and Servicely but I've now disabled those for the moment while I have this problem.
I used an app called SystemPanal2 which shows and monitors running processes with battery drain. It a bit of a complex app and didn't really learn anything from it. One thing though is that the app had a high battery drain for "Unknown Processes" so I don't know what that could be, it might be the cause of the problem. I get high ratings for the expected things like Display, Android System, SystemUI and something called "Call Services".
One thing I did is put my sim into another fone and set up a hopspot for my V20. Using the V20 for streaming apps on wifi the phone did not get anywhere near as hot for the short time I did this.
I suspect a few things. It could be something to do with the AT&T bloat apps specifically related to Call Management. It could be that flashing H910 on my VS995 comes with negative side effects that I can't fix. It could be a problem with the custom kernel I flashed which was working almost as fluid and Lineage 16 when I tested that.
I don't think it's the battery. I have a perfine 4100 on the way but I think it's software. If I can't resolve this soon I'm going to have to reflash original VS995 firmware and start again from scratch which I really don't want to do, but it's not in a state I can use as a daily driver as it is.
One last thing, in troubleshooting this issue I went into Hidden Menu *#lgmenu#*910#. Field_Test>Modem_Settings>....most of the options you'd expect to find there are missing including select bands etc. Can someone tell me if this is normal for the H910? I'm concerned I may have debloated some at&t stuff that caused this.

@Eezony feel free to join. Mine is not rooted, stock H910 with the latest update. Since I am not rooted, I have even less access to the running processes.
Now you mentioned it, the phone tends to behave more normal when I am traveling overseas using another device as a hotspot to the V20 and the V20 on airplane mode (and using WiFi Calling and other apps).
In the modem settings I have Engineering Mode and PDP setting.

Thanks @haris163. As I said I'm highly suspect the issue has something to do with AT&T specific settings/bloatware/services etc. In which case it would affect my rooted and your non-rooted device in the same way.
Now since I posted I disabled some further background at&t process (physically deleted the apk's in system/priv-app ) that I had disabled but were showing up as a running idle process strangely. I'm running my fone beside me at home with earbuds plugged with streaming music app on and so far the device is not hot in the same way it was in my pocket. Hopefully I've found something but too early to tell. One of the process was called something like at&t_remote_service.

Well, I have since reverted back to US996 by flashing KDZ.
As I was saying the reason I flashed H910 at&t on my device was for the FM radio capability. Unfortunately the at&t version introduced some hoops to go through to get wifi and signal working properly which I didn't fully remedy. All these issue were resolved by reverting to US996 which is carrier bloatware and modifications free.
But that one has no fm radio so I ported the fm radio app to the US996.
The result is now I'm fully satisfied with my software setup without troubling issues.
You don't have to be rooted to flash US996, just use lgup patched version.

Related

[Q] Need some help

Hey guys,
I've been with the forum for a couple of years already but got caught of guard recently. I got a mytouch4g in december and it had been working great except for power amp and one or two other programs that I obtained and installed. I reset the phone to factory and reinstalled everything and it started running great again. Mind you, I haven't rooted the phone or really had the need to since it does everything that I've wanted to do to it if I were to root it. Recently in the past couple of days though, the performance has SEVEARLY dropped. Its dropped to the point where the swype on the phone won't even function properly half of the time. I've continue to soft reset the phone hoping it'll clear out the OS and function properly but it keeps slowing down. I was hoping someone may have been receiving the same issues and might be able to help me out. Also, I've noticed that whenever I'm in an area where I have poor coverage, the phone begings to heat up a lot and drains my battery. At work its been happening but it stopped when i managed to connect to the wireless. Its still consuming a pretty high amount of my battery though. I've tried searching for these symptoms but wasn't able to find anything.
Any help is greatly apprceiated, I know this community is one of the best out there. Thanks guys!
Also, has anyone been receiving any issues with their wireless radio or their cell radio with the phone is tilted on its right side to view videos?
When you notice the issue happening, try to go into settings>about phone>battery>battery use and see what is consuming most of your battery-sometimes certain apps you download can cause issues....
Yes, problem is definitely with one of your apps. Get watchdog lite and monitor your system for couple of days to see what takes up resources. Or, start fresh and add apps one by one and see where you start having problems. Also, certain live wallpapers can bog down system beyond believe... learned it the hard way.
As far as radio perfomance - every phone will have a certain position in which signal degrades. Just a nature of the beast.... something will always block antennas one way or another.

GApps on Rooted LG V20

Does anybody know if we are able to flash any other versions of GApps on the rooted LG V20?
My V20 is from AT&T and since day one it has had terrible battery life. Where I was able to use my Note7 or Droid Turbo all day and still have battery left, the V20 eats the battery charge like Sally Struthers in a See's Candy warehouse. I mean, I have to charge this thing at least 2 times a day when I use it to search the web or any battery intensive purposes. I never had this problem on any other phone. I have been trying to find ways to improve my battery. I used Rom Toolbox Pro to disable all kinds of stuff, and it worked great, until my phone started Grand Mal seizing giving me the Google Play Services has to close notifications, which I then had to factory reset just to get my phone working properly again.
I would like to try flashing a minimal version of GApps that pretty much just has the play store and play store services. Are we able to do this on our V20's without having any issues? If you have any input at all I would really appreciate it.
IMHO it must be an app or two you have installed draining your battery like that. On a full charge I can a whole day and a little in to the next. I am a heavy user too. Are you blasting the brightness at 100% all the time? If so auto brightness will help a little. Go in to setting and see what is using that much drain
tnick84 said:
IMHO it must be an app or two you have installed draining your battery like that. On a full charge I can a whole day and a little in to the next. I am a heavy user too. Are you blasting the brightness at 100% all the time? If so auto brightness will help a little. Go in to setting and see what is using that much drain
Click to expand...
Click to collapse
I was thinking it might be something I installed, as well. But I can't seem to pinpoint any apps that might be causing the battery drain. I keep the screen on auto brightness like you mentioned so it shouldn't be the screen. GSam almost always shows the Android System and Kernel (Android OS) at the top of the list of battery-draining apps. I love the phone, I just cannot figure out what is going on. I mean, I am not doing anything different than I have on my previous phones, and the V20 seems to be working fine. I thought maybe it is something with Nougat. I will gladly post some pics of app usage or data if it might help figure this problem out.
nikktrikk said:
I was thinking it might be something I installed, as well. But I can't seem to pinpoint any apps that might be causing the battery drain. I keep the screen on auto brightness like you mentioned so it shouldn't be the screen. GSam almost always shows the Android System and Kernel (Android OS) at the top of the list of battery-draining apps. I love the phone, I just cannot figure out what is going on. I mean, I am not doing anything different than I have on my previous phones, and the V20 seems to be working fine. I thought maybe it is something with Nougat. I will gladly post some pics of app usage or data if it might help figure this problem out.
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Click to collapse
What rom are you on? Are you on stock white theme? I'm running a dark theme, which can help save a little juice. I'm also running as many team blackout apps as I can (many Google apps) to avoid all the whiteness. Just throwing out some ideas.
tnick84 said:
What rom are you on? Are you on stock white theme? I'm running a dark theme, which can help save a little juice. I'm also running as many team blackout apps as I can (many Google apps) to avoid all the whiteness. Just throwing out some ideas.
Click to expand...
Click to collapse
Interesting! I have never heard of Team Blackout Apps, they look pretty nice! Yes, I am on the stock ROM just the way it comes. I haven't changed anything at all. I have barely installed any apps just to see if I can find what is causing the battery to drain. Are there any other ROMs that work with the AT&T variant of the LG V20? It seems like they haven't made any yet for the AT&T V20. I am still waiting for Xposed to be released that is compatible with nougat so I can use Amplify.
nikktrikk said:
Interesting! I have never heard of Team Blackout Apps, they look pretty nice! Yes, I am on the stock ROM just the way it comes. I haven't changed anything at all. I have barely installed any apps just to see if I can find what is causing the battery to drain. Are there any other ROMs that work with the AT&T variant of the LG V20? It seems like they haven't made any yet for the AT&T V20. I am still waiting for Xposed to be released that is compatible with nougat so I can use Amplify.
Click to expand...
Click to collapse
I don't think there are any roms for AT&T variant atm. I did see an AT&T user flashed the stock deodexed rom by tilde88 in rom section. Not sure of all the details though. I'm assuming you would lose some functionality...would need to flash stock kernel as well.
What is your leading source of battery drain under system usage?
tnick84 said:
I don't think there are any roms for AT&T variant atm. I did see an AT&T user flashed the stock deodexed rom by tilde88 in rom section. Not sure of all the details though. I'm assuming you would lose some functionality...would need to flash stock kernel as well.
Click to expand...
Click to collapse
Yeah definitely, I think it is a little bit too early, for me at least, to expetiment with a deodexed ROM. But I know there will be some awesome developments coming out soon. I was so happy to see that a root was figured out for the V20 so quickly after it was released. Until then, I will keep experimenting with the stock ROM.
Swizzle82 said:
What is your leading source of battery drain under system usage?
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Click to collapse
Hi Swizzle82, thank you for the reply. It is kind of difficult for me to pinpoint what the leading source of battery drain is because the apps seem to bunch all detected processes and wakelocks together. I know that Call Services & Android System show up on top a lot of the time, but since I factory reset the phone today, the stats are minimal compared to what I previously had. WeChat also uses resources, but I used that app all the time on my Note7 and previous phones, even more than I do now, and it never caused a problem. I attached some screenshots from GSam, BetterBatteryStats, Wakelock Detector, and CPU Spy Reloaded., I don't know if they will help, but just switching between those few apps and taking some screenshots over the span of 6 minutes, my battery percentage dropped from 79% to 76%.
nikktrikk said:
Yeah definitely, I think it is a little bit too early, for me at least, to expetiment with a deodexed ROM. But I know there will be some awesome developments coming out soon. I was so happy to see that a root was figured out for the V20 so quickly after it was released. Until then, I will keep experimenting with the stock ROM.
Hi Swizzle82, thank you for the reply. It is kind of difficult for me to pinpoint what the leading source of battery drain is because the apps seem to bunch all detected processes and wakelocks together. I know that Call Services & Android System show up on top a lot of the time, but since I factory reset the phone today, the stats are minimal compared to what I previously had. WeChat also uses resources, but I used that app all the time on my Note7 and previous phones, even more than I do now, and it never caused a problem. I attached some screenshots from GSam, BetterBatteryStats, Wakelock Detector, and CPU Spy Reloaded., I don't know if they will help, but just switching between those few apps and taking some screenshots over the span of 6 minutes, my battery percentage dropped from 79% to 76%.
Click to expand...
Click to collapse
I had android system for a while killing me.. I factory reset and setup every app one by one with no data transfer or anything. Installed every app like it's first install. I charged it til it reached 100 percent, with the phone plugged in, I went to data/system/batterystars.bin and deleted that file and rebooted. It was a long process but it hasn't been an issue since. This was when the phone first came out last month. Never knew which apps data it was but it is gone now.
Swizzle82 said:
I had android system for a while killing me.. I factory reset and setup every app one by one with no data transfer or anything. Installed every app like it's first install. I charged it til it reached 100 percent, with the phone plugged in, I went to data/system/batterystars.bin and deleted that file and rebooted. It was a long process but it hasn't been an issue since. This was when the phone first came out last month. Never knew which apps data it was but it is gone now.
Click to expand...
Click to collapse
That sounds like a good idea to try. I will do this today since I already factory reset it yesterday. I would rather do it now before I get further into using it again. I have not heard about this until you mentioned it so maybe there is an issue with app transfers with the V20 causing it. The battery does seem to drain less than before, but it seems like there are still some issues. Thank you for the suggestion!
nikktrikk said:
That sounds like a good idea to try. I will do this today since I already factory reset it yesterday. I would rather do it now before I get further into using it again. I have not heard about this until you mentioned it so maybe there is an issue with app transfers with the V20 causing it. The battery does seem to drain less than before, but it seems like there are still some issues. Thank you for the suggestion!
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Click to collapse
If you followed did the dirtysanta method, make sure you flash the Konverged kernel for the H918. Or Tilde88's 5.1 kernel for the H918. It worked wonders on improving battery life. Also make sure you disable Lookout - that drains a lot of battery it seemed to me at least. I usually get about a day and a half of battery life when I use my normal amount (which is honestly quite a bit).
Twisted
twistedvip said:
If you followed did the dirtysanta method, make sure you flash the Konverged kernel for the H918. Or Tilde88's 5.1 kernel for the H918. It worked wonders on improving battery life. Also make sure you disable Lookout - that drains a lot of battery it seemed to me at least. I usually get about a day and a half of battery life when I use my normal amount (which is honestly quite a bit).
Twisted
Click to expand...
Click to collapse
Okay, thanks for letting me know! I have not even looked at those kernels thinking they weren't cross compatible with H910. I am going to try it right now with the dirtysanta method. I will disable Lookout, as well. There are a ton of apps that I never use that drain the battery. I will let you know how it goes :good:
Did you own a V10 or other Lg phone prior?
Swizzle82 said:
Did you own a V10 or other Lg phone prior?
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Click to collapse
No, I had the Note7 before getting the LG V20. Before that I had a Note 4 and a Droid Turbo. This is my first LG phone and I really do love it. I actually like it more than the Note7, the only problem I have is the battery. I do think that factory resetting and manually installing the apps instead of restoring them will help, and using the Konverged kernel seems promising, from what I am reading.
nikktrikk said:
No, I had the Note7 before getting the LG V20. Before that I had a Note 4 and a Droid Turbo. This is my first LG phone and I really do love it. I actually like it more than the Note7, the only problem I have is the battery. I do think that factory resetting and manually installing the apps instead of restoring them will help, and using the Konverged kernel seems promising, from what I am reading.
Click to expand...
Click to collapse
Yup I always start fresh and install apps manually anytime I reset my phone. I think it's always nice to start fresh - even if it is sometimes a bit inconvenient to go through all the apps you've installed and choosing which ones to install. Hopefully you get it all sorted out!
Swizzle82 said:
I had android system for a while killing me.. I factory reset and setup every app one by one with no data transfer or anything. Installed every app like it's first install. I charged it til it reached 100 percent, with the phone plugged in, I went to data/system/batterystars.bin and deleted that file and rebooted. It was a long process but it hasn't been an issue since. This was when the phone first came out last month. Never knew which apps data it was but it is gone now.
Click to expand...
Click to collapse
twistedvip said:
Yup I always start fresh and install apps manually anytime I reset my phone. I think it's always nice to start fresh - even if it is sometimes a bit inconvenient to go through all the apps you've installed and choosing which ones to install. Hopefully you get it all sorted out!
Click to expand...
Click to collapse
Okay, I just factory reset the phone, rooted it with DirtySanta, and flashed the Konverged kernel and the phone is NOTICEABLY faster and smoother! This is great! Each time I reset the phone, it had noticeable lag. I just figured it would go away over time, which it did, and that it was because it had to load and download everything since it was fresh. But with the Konverged kernel, it has none of the lag and is silky smooth! Time to manually install the apps I want and disable some stuff I don't need. I will update you guys after I see how the battery is with the new setup Thanks a lot for your help, I really appreciate all the input!:good:
I need your help! I changed the screen cover sensor to off not realizing that I would not be able to turn off the static after rebooting my phone since the sensor is off. Would somebody please post a few screenshots showing how to navigate to the screen sensor settings so I can tap my way there and turn it back on? I am trying but there is no way to tell where to tap with all the static. Thank you!
Nevermind, I fixed it! I finally navigated to the second screen settings and turned it off when the screen is off and that got rid of the static after I turned the screen off then on again. Note to self, never do that again LOL.
nikktrikk said:
I need your help! I changed the screen cover sensor to off not realizing that I would not be able to turn off the static after rebooting my phone since the sensor is off. Would somebody please post a few screenshots showing how to navigate to the screen sensor settings so I can tap my way there and turn it back on? I am trying but there is no way to tell where to tap with all the static. Thank you!
Nevermind, I fixed it! I finally navigated to the second screen settings and turned it off when the screen is off and that got rid of the static after I turned the screen off then on again. Note to self, never do that again LOL.
Click to expand...
Click to collapse
Wow I'm fairly impressed you managed to do all that with the static screen haha - glad to hear it worked out for you in the end.
Get me your stock system.img and boot.img, and I'll make you a modded ROM with a custom kernel!
twistedvip said:
Wow I'm fairly impressed you managed to do all that with the static screen haha - glad to hear it worked out for you in the end.
Click to expand...
Click to collapse
Haha yeah, I never knew something like that could cause such a huge problem. Now I can't seem to find what I did to cause that in the first place. I have been looking through all of the settings and can't seem to find anything that affects the proximity sensor. On top of that, the screen rotation stopped working, it will not rotate when I turn the phone to the side to type. I have toggled all of the motion and second screen settings, calibrated the motion sensor, and nothing is affecting it. When I turn the main screen off, the sensor does not shut off the second screen when I cover it with my finger, and the phone does not recognize when I rotate the screen. I am kind of at a loss on how to fix it.

[Q] Device occasionally loses Internet connection for both WiFi and cellular

Now that I've got the Moto X Pure Edition activated, I've been able to work out some of the kinks inherent using it as a daily driver. One noteworthy issue that remains is an odd bug where the device will completely lose connection to the Internet on both a WiFi and cellular data connection, usually after transitioning between types of connections. When this happens, an exclamation point is displayed next to the icon representing whichever connection is currently active and nothing is able to transmit data to or from the Internet or even my local network.
Rebooting the device always fixes the problem, but this issue is materializing a bit too often for my liking, which is usually once every time that I return to a WiFi network after being disconnected from one for some time (more testing may have to be done to confirm exactly what triggers it).
The device is running the stock rom (rooted) and the stock kernel along with the usual tweaks (ad-blocking, Xposed framework, audio fixes, etc.). Anybody seen this before or know what might be causing it?
UPDATE (3/1/2017)
Figured it out! The problem appears to have been caused by my failure to whitelist certain applications in PowerNap. After following the instructions found in the Moto X Pure Edition power optimization thread, the problem appears to have vanished. I don't know if it was the Google Services Framework, JavaTcmdHelper, Android System, or some combination of those that needed to be whitelisted, but the problem has vanished. At least one of those must be responsible for verifying the validity of an Internet connection in sleep mode, which would cause the device to become confused when it would wake up with a different connection that it hadn't verified (that's my theory at least).
At any rate, it is no longer an issue.
Update (Later on 3/1/2017)
Well, it looks like it might not be fixed so well after all. A couple hours after arriving home today, I went to use the device and saw the dreaded "!" next to the network indicator. Still, two days is longer than it's ever lasted before. I've cleared the cache and dalvik/ART cache to see if something in there might be gumming it up and will add another post to this thread if the problem returns.
Still an issue
Looks like it might not be fixed after all. I lost connection again the other day in a parking lot and once more today after getting home. Any ideas as to what could be causing this?
I just recently got my x pure. I've seen this issue on mine too.
Another one!
inkdaddy66 said:
I just recently got my x pure. I've seen this issue on mine too.
Click to expand...
Click to collapse
Interesting. Are you running the stock Rom? Rooted? Amplify/Greenify/PowerNap?
Bill720 said:
Interesting. Are you running the stock Rom? Rooted? Amplify/Greenify/PowerNap?
Click to expand...
Click to collapse
I'm unlocked and rooted. Running validus 7.1.1 ROM.
does your configuration look anything like this?
inkdaddy66 said:
I'm unlocked and rooted. Running validus 7.1.1 ROM.
Click to expand...
Click to collapse
That too is interesting. I'm running the stock Rom, (rooted) so we can probably eliminate that as a potential cause. Given how little reference there is to this on the web at large, the problem is probably caused by a common app or setting (or some kind of unfortunate combination) running on both of our phones.
All we need to do is figure out what kind of "unusual" stuff our devices have in common. I'll rattle off a list of software and settings that might be out of the ordinary or network-related; you tell me if you're running anything like it on your phone.
AdFree
A.R.I.S.E. audio
FolderSync
Ice Box (Motorola Update Service is the only frozen app)
TOTAL Wireless My Account App
Pebble, MyTracks, and Pebble MyTracks
SlingPlayer (this one sometimes wakelocks)
Titanium backup (I tried restoring some WiFi access points once, but it didn't work)
Xposed Framework with Amplify, Greenify, and Power Nap installed and configured as instructed in the Moto X Pure Edition battery life guide thread OP. I've also got MinMinGuard and YouTube AdAway.
As far as settings go, I've not got much in the way of unusual configurations. I enabled the system UI tuner to get the battery percentage and the extended developer options to try out multi-window, (and to change the animation scales to .5X) but everything in there is still pretty much stock.
Does your configuration have anything in common with mine?
Close, but no cigar
It got almost 8 days this time before it happened again. I thought that maybe switching to the legacy DHCP client had done the trick, but that was apparently not the case. Any ideas as to what could be causing the issue or how to fix it?
Or, if you're having the same problem, can you look at my list in the previous post and tell me if any of the software or settings are similar so that we can narrow down the cause?
I have had this problem appear about three times over my 13 months of ownership and all three times was when my bootloader was still locked (obviously running stock not rooted). Never found a solution except to reboot.i only unlocked and rooted my device about a month ago.
Anything familiar?
aybarrap1 said:
I have had this problem appear about three times over my 13 months of ownership and all three times was when my bootloader was still locked (obviously running stock not rooted). Never found a solution except to reboot.i only unlocked and rooted my device about a month ago.
Click to expand...
Click to collapse
Interesting. Between that, my findings, and the fact that @inkdaddy66 was having the problem on a non-Motorola Rom, I want to think that we can eliminate the Rom software as a cause. Did you see any familiar software on my "potential troublemakers" list up in post 6? I'm thinking that if we can find a common program or workflow, then we'll be able to narrow down the cause of the problem.
In the meantime, I'll try posting in the general Android troubleshooting forum here on XDA and see if anybody there has seen the problem or has any troubleshooting tips.
Bill720 said:
Interesting. Between that, my findings, and the fact that @inkdaddy66 was having the problem on a non-Motorola Rom, I want to think that we can eliminate the Rom software as a cause. Did you see any familiar software on my "potential troublemakers" list up in post 6? I'm thinking that if we can find a common program or workflow, then we'll be able to narrow down the cause of the problem.
In the meantime, I'll try posting in the general Android troubleshooting forum here on XDA and see if anybody there has seen the problem or has any troubleshooting tips.
Click to expand...
Click to collapse
Nothing used from your list except system UI tuner when I experienced the problems. That would leave either a ROM and/or hardware issue IMO.
Cause and effect differential diagnosis
aybarrap1 said:
Nothing used from your list except system UI tuner when I experienced the problems. That would leave either a ROM and/or hardware issue IMO.
Click to expand...
Click to collapse
Hmmm... That's also interesting, but I just don't see how system UI tuner could be harming anything. Do you have any other apps or settings at all that you think could be causing the issue?
If this were anything other than my primary, I'd hard reset and troubleshoot that way, but I don't exactly have the time to pull the rug out of an otherwise-working setup right now, so this is going to have to be done the hard way (or, in the case of hardware glitch, lived with).
At any rate, I discovered a new symptom earlier in the week. This time, Internet connection was lost, but only for WiFi, so the connection would actually fall back to Cellular and still continue to work. As before, toggling the connection had no effect, but rebooting the device "fixed" it. I thought maybe it was a fluke, since we'd had an AP hiccup over the weekend, (I refuse to reboot that thing because I'm going for an uptime record) but it happened again on Wednesday, so I'm not sure what to make of it.
Side-issue aside, I'm beginning to wonder if it's some kind of combination of network behavior and usage pattern that brings the issue about. It seems like if I stay within range of the WiFi network, no issue develops, but if I move out of its coverage and don't touch the phone for a while, that allows for ideal conditions under which to replicate the problem (sometimes). I haven't nailed down a consistent pattern yet, but the problem does emerge more often when I'm returning home than at other times. Any thoughts?
Update (3/24/2017; 12:32PM)
Scratch that last part about the issue only being triggered upon "arriving home." The problem happened again this morning, in the same general area. First, no WiFI, then, after resetting the connections, no cellular either. I captured a LogCat before rebooting this time though. Anyone want to take a crack at sifting through that to see if it offers any clues?
I lose cellular data, from time to time, I don't kow if I'm losing WiFi capability also, because I'm on the road when this happens.
It takes a reboot or switching in and out of airplane mode to regain data.
I have had this happen on TruPureXMM ROM and stock-rooted Marshmallow.
I have not spent much time on stock-unrooted, so i don't know if it would happen then, also.
Possible fix
Just to follow up on this again, I have finally reached the eighth day of uptime without the problem materializing, which is the longest that I was able to go before without it happening. This time, I went in to the developer options and disabled "Cellular data always active." I'd give it another couple days to know for sure, but if this sticks, then I think we might've found the fix!
pizza_pablo said:
I lose cellular data, from time to time, I don't kow if I'm losing WiFi capability also, because I'm on the road when this happens.
It takes a reboot or switching in and out of airplane mode to regain data.
I have had this happen on TruPureXMM ROM and stock-rooted Marshmallow.
I have not spent much time on stock-unrooted, so i don't know if it would happen then, also.
Click to expand...
Click to collapse
If your trouble is isolated to just one connection and/or cycling the connection brings it back, then the issue you are experiencing is unrelated to the one described in this thread.
Bill720 said:
Just to follow up on this again, I have finally reached the eighth day of uptime without the problem materializing, which is the longest that I was able to go before without it happening. This time, I went in to the developer options and disabled "Cellular data always active." I'd give it another couple days to know for sure, but if this sticks, then I think we might've found the fix!
If your trouble is isolated to just one connection and/or cycling the connection brings it back, then the issue you are experiencing is unrelated to the one described in this thread.
Click to expand...
Click to collapse
Cellular data always active should never be on (it's disabled in stock rom), except if you have VoLTE only with no fallback to 3G or 2G (Jio is the only provider that comes to mind, but this phone doesn't support their service anyway) or otherwise unusual scenarios I can't really think of.
Huh, and CELLULAR DATA ALWAYS ACTIVE (for faster network switching) sounds like such a good thing.
Mine was selected on.
My loss of data happens in the same spot, usually, but is not leaving wifi. Perhaps it is a tower to tower handoff spot.
I turned it off. Time will tell.
Thanks, fellas!
pizza_pablo said:
Huh, and CELLULAR DATA ALWAYS ACTIVE (for faster network switching) sounds like such a good thing.
Mine was selected on.
My loss of data happens in the same spot, usually, but is not leaving wifi. Perhaps it is a tower to tower handoff spot.
I turned it off. Time will tell.
Thanks, fellas!
Click to expand...
Click to collapse
Always on is not necessarily a good thing. Reality is that when you lose or turn off WiFi, mobile data should only be delayed only by a second or two. There is no real benefit to having it on except for maybe VOLTE.
pizza_pablo said:
Huh, and CELLULAR DATA ALWAYS ACTIVE (for faster network switching) sounds like such a good thing.
Mine was selected on.
My loss of data happens in the same spot, usually, but is not leaving wifi. Perhaps it is a tower to tower handoff spot.
I turned it off. Time will tell.
Thanks, fellas!
Click to expand...
Click to collapse
Actually, it's a battery killer more than anything else... It keeps cellular data active even when on WiFi.
It is possible it's a tower thing though. I have noticed at this one hotel I stay at frequently people tell me they call and it rings or just goes to voicemail even though I have good signal. After investigating it a bit, I'm in a spot that has nearly identical signal strength from 3 towers and it's a metro area so there are 4+ bands accessible... I've seen times watching LTE Discovery where it keeps switching bands and towers for 30 to 120 seconds or so, like it can't make up it's mind what to talk to because it's confused, then it locks on for a while before it starts it's cycle again. During those cycles I think is when people​ can't call me, can't really say if it affects internet or not since I tend not to use my phone too much in the evenings when I'm on the road (usually on laptop).
Uptime record, but... it's back
acejavelin said:
Cellular data always active should never be on (it's disabled in stock rom), except if you have VoLTE only with no fallback to 3G or 2G (Jio is the only provider that comes to mind, but this phone doesn't support their service anyway) or otherwise unusual scenarios I can't really think of.
Click to expand...
Click to collapse
Interesting. I thought for sure that I had the default settings checked in there, but maybe I did change it early on and just forgot. Either way, waiting an extra five seconds to establish a data connection isn't that huge of a deal for me, so I'll leave it off anyway in exchange for battery life when the signal's poor.
At any rate, however, the problem has returned. I was just a few hours short of 9 days of uptime and really thought that I was out of the woods with this problem, but it has returned once again upon returning into range of the home access point. Looks like we're back to the drawing board on this one.
pizza_pablo said:
Huh, and CELLULAR DATA ALWAYS ACTIVE (for faster network switching) sounds like such a good thing.
Mine was selected on.
My loss of data happens in the same spot, usually, but is not leaving wifi. Perhaps it is a tower to tower handoff spot.
I turned it off. Time will tell.
Thanks, fellas!
Click to expand...
Click to collapse
So you're having the same problem too? That makes at least four of us now. Do you mind sharing what Rom and flashed tweaks (Xposed Framework, A.R.I.S.E. audio, root, etc.) you're using as well as any unusual software or settings? Anything in common with my list on page 1?
Bill720 said:
So you're having the same problem too? That makes at least four of us now. Do you mind sharing what Rom and flashed tweaks (Xposed Framework, A.R.I.S.E. audio, root, etc.) you're using as well as any unusual software or settings? Anything in common with my list on page 1?
Click to expand...
Click to collapse
I think we've established that my issue is different, but it has occurred on TruPureXMM and stock but rooted Marshmallow, both with Substratum, Xposed (Gravity Box only) and Viper Atmos.
Same as you =Titanium Backup
*another* new strategy (sigh)
For this week's shot in the dark, I'm going to try manually switching WiFi off before I leave anyplace covered by an access point. Since the problem seems to occur most often when connected to WiFi or when connecting to it, maybe this will make some kind of a difference.
pizza_pablo said:
I think we've established that my issue is different, but it has occurred on TruPureXMM and stock but rooted Marshmallow, both with Substratum, Xposed (Gravity Box only) and Viper Atmos.
Same as you =Titanium Backup
Click to expand...
Click to collapse
I see now; my mistake.

[RESEARCH] Mobile network standby drain (Oreo)

Since the first release of oreo I started using the rom as a daily driver, later on paired with a good kernel it had some good perfomance
But after some days of using the rom i started to notice a huge battery drain caused by the Mobile network standby process?
My battery was old (OEM 2014 battery) so i decided to revert back to lineageOS just after a couple of days where I haven't had any issues with that mobile network standby
Now I'm really curious what is causing this issue,drain because I am using the phone on the same settings as on 7.1 nougat, I am living in a country where all networks run on 3G,H+,2G etc. so no 4G if this can be a cause
Changed the network modes many times and tested throughout the days but there was no sucess the drain was still persist, tried updating,downgrading bootloaders swithing modems but again no sucess
If there, in the world of android is any solution, here is the thread to discuss about this issue. :fingers-crossed:
I've wondered this too. I've been running los15 on my g900v , I rooted and boot the first ROM that would work without having or remembering todomuch, I ran the first custom kernal I could find via google, and ran whatever was noted as the latest Verizon modems. its like right off the bat, smooth , consistent battery life and nice. Then the next day I noticed things would crash, my Bt temperamental at best and restarted it just to get by. if I have sync on at home, WiFi off, it just chills , if I turn sync off and drive around town, my battery life gets eaten by the unknown. I pulled some logs to see whats up with my BT but haven't got around to it yet. But my battery too is old (I literally found my s5 in the trash) and I run weird processes and tweak settings all the time just to mess with it, so that could be it to. If I see anything weird I'll let you know.
I'm struggling with this issue for months, since the first port of an Oreo custom ROM (LOS and RR) for the Galaxy A3 Duos (my device) started being developed.
From the beginning I had this problem, and what, since then, puzzles me the most is the fact that only some of us, flashing the same ROM in the same device, experience the issue. Whenever I flash any of those ROMs, even before installing any user apps (or when running in safe mode), the drain is there, which leads me to think that the culprit must be some setting: not an app, because I have none installed; not the ROM itself, because not everybody has this problem.
Unfortunately there seems to be no developers looking into this bug.
For the sake of information, I've observed two things that should help to narrow down the issue; or maybe not.
First, all the devices affected, as far as I've searched, are double SIM.
Second, the Mobile Network Standby (MNS from now on) drain is narrowy connected with the Bluetooth drain (which "also" occurs in Oreo). I've experienced the following: If, after a full charge, I don't switch on Bluetooth at all, then what drains my battery (according to Advanced Battery Usage information) is MNS. However, if I switch bluetooth on -even if only for one minute- then what apparentlyh drains my battery is Bluetooth, at the same speed as MNS did before switching bluetooth on.
Funny enough, the battery use info reports zero minutes activity for both Bluetooth and MNS. But how can a process which runs zero minutes drain 50% of the battery?? I'm afraid that the battery use information isn't reliable. But then that's very bad news, since, in such case, it might well happen that the real juice sucker is neither MNS nor Bluetooth!! We might be dealing with a "ghost" here, since we can't even trust the battery use information provided by the OS.
If someone has something with which to contribute to this research, or any ideas, please comment.
I'm having the same trouble on android 9 betas, even better, my phone gets without signal during those times and there's nothing I could do but rebooting the phone.
How can we help solve this? it looks like it's annoying a lot of people now

Introduction, Thanks, and a Question: Can Patched LGUP Make Backup of Stock h910

Good morning from Upstate New York, USA.
First, thank you to all the members who have posted such excellent information here. If time spent on this site were worth university credits, I think I would have earned a degree this past week or two. My name is Richard and I'm a semi-retired IT guy who still does some Web development (not so much apps as general Web stuff). I'm amazed at the breadth and depth of knowledge on this site.
The abridged version of why I wound up here is that I have two LG V20 h910 phones. One was still in the box until two weeks ago. I decided to put it into service as a car unit, mainly to run GPS-dependent navigation and mapping apps, because the GPS radio in my main phone is getting tired. It still works, but the signal strength is borderline.
My main phone also has a lot of other apps that I need, some of which require location services, but none of which require an especially strong or consistent signal. So rather than wipe that and move everything to the spare phone, I decided to put the spare into service for car-related stuff. Besides, having another phone number for very limited distribution will come in handy since my "main" number is starting to get too many blasted robocalls.
Because the navigation apps I use don't require Google Play Services, I decided to try rooting the spare phone and trying out more lightweight custom ROMs. That became quite an adventure, albeit a very educational one. I installed about half a dozen ROMs (not including cross-flashing to get root back), thought I bricked the phone about as many times, and in the end wound up with stock Oreo (no root). I'm going to test that today to see how well it navigates. If it works well, I may leave it that way.
If not, then I'll reinstall the unofficial LineageOS 17 beta, which came closest to meeting my needs for this device. It had everything I needed except the ability to route the sound to the car radio via BT using any way that I'm aware of. Other than that, it ran the GPS-dependent apps splendidly. I'm following the progress of that project and may try it again if that deficit is fixed (or if I feel like trying to fix it myself).
Which brings me to the question:
Can Patched LGUP Make a Usable Backup of an AT&T h910?
It's a real drag to have to downgrade / crossflash and re-root to re-flash stock. I know ATT doesn't release .kdz files, but can LGUP DUMP make usable backups of a stock AT&T system that can be easily restored? If so, how would I do that?
As I said, I really don't need root on this device, assuming it does what I need it to do (basically run my navigation and mapping apps). I'm going to test that today, which is an excellent day for that because it's cloudy outside. But if it doesn't, then probably I'll be trying LOS 17 again. It would be nice to have an easier way back to stock than crossflashing, downgrading, re-rooting, and re-flashing.
Thanks again,
Richard
GeekOnTheHill said:
Good morning from Upstate New York, USA.
First, thank you to all the members who have posted such excellent information here. If time spent on this site were worth university credits, I think I would have earned a degree this past week or two. My name is Richard and I'm a semi-retired IT guy who still does some Web development (not so much apps as general Web stuff). I'm amazed at the breadth and depth of knowledge on this site.
The abridged version of why I wound up here is that I have two LG V20 h910 phones. One was still in the box until two weeks ago. I decided to put it into service as a car unit, mainly to run GPS-dependent navigation and mapping apps, because the GPS radio in my main phone is getting tired. It still works, but the signal strength is borderline.
My main phone also has a lot of other apps that I need, some of which require location services, but none of which require an especially strong or consistent signal. So rather than wipe that and move everything to the spare phone, I decided to put the spare into service for car-related stuff. Besides, having another phone number for very limited distribution will come in handy since my "main" number is starting to get too many blasted robocalls.
Because the navigation apps I use don't require Google Play Services, I decided to try rooting the spare phone and trying out more lightweight custom ROMs. That became quite an adventure, albeit a very educational one. I installed about half a dozen ROMs (not including cross-flashing to get root back), thought I bricked the phone about as many times, and in the end wound up with stock Oreo (no root). I'm going to test that today to see how well it navigates. If it works well, I may leave it that way.
If not, then I'll reinstall the unofficial LineageOS 17 beta, which came closest to meeting my needs for this device. It had everything I needed except the ability to route the sound to the car radio via BT using any way that I'm aware of. Other than that, it ran the GPS-dependent apps splendidly. I'm following the progress of that project and may try it again if that deficit is fixed (or if I feel like trying to fix it myself).
Which brings me to the question:
Can Patched LGUP Make a Usable Backup of an AT&T h910?
It's a real drag to have to downgrade / crossflash and re-root to re-flash stock. I know ATT doesn't release .kdz files, but can LGUP DUMP make usable backups of a stock AT&T system that can be easily restored? If so, how would I do that?
As I said, I really don't need root on this device, assuming it does what I need it to do (basically run my navigation and mapping apps). I'm going to test that today, which is an excellent day for that because it's cloudy outside. But if it doesn't, then probably I'll be trying LOS 17 again. It would be nice to have an easier way back to stock than crossflashing, downgrading, re-rooting, and re-flashing.
Thanks again,
Richard
Click to expand...
Click to collapse
The short answer is no ...the LGUP is not easily restored
The best way I found was to leave the patched aboot and TWRP on the phone and use the 20H rooted rom along with MK2000 kernel (Newest)
and reinstall TWRP (It gets wiped with the 20H rom)
their is a H910_20g_Oreo_full_stock_Tested.zip if you really want to restore the phone to full stock and take the OTA to 20H
clsA said:
The short answer is no ...the LGUP is not easily restored
The best way I found was to leave the patched aboot and TWRP on the phone and use the 20H rooted rom along with MK2000 kernel (Newest)
and reinstall TWRP (It gets wiped with the 20H rom)
their is a [I can't post links yet, even when quoting] if you really want to restore the phone to full stock and take the OTA to 20H
Click to expand...
Click to collapse
Thank you. That's actually the image I used in the end. If stock Oreo works best for what I need this particular device to do, then I'm okay with using stock Oreo, uninstalling the crapware that I can, and disabling what I can't.
I can also attest that that image worked flawlessly.
Richard
I should also mention that this whole adventure has given me even more respect for the V20. It's practically impossible to brick. No matter how badly I hosed it, there was always a way back.
Richard
The "spare" h910 passed its navigation tests with flying colors. I took it for a two-and-a-half hour drive to Micro Center, and my favorite nav app (Magic Earth) performed flawlessly there and back. The only hiccup was on a small stretch of road where half the birds suddenly disappear from the sky due to the topography (the road was cut through rock). It confuses all GPS-based systems.
So that's my new navigation device. I'm also going to route my work number to it since I'm paying for the service anyway. I took the lowest-level AT&T prepaid plan with data. It's only 1 GB with one-month rollover, but I use very little. It will mainly be for traffic data for the navigation apps.
One thing I noticed was that the "car phone" was much cooler than the h910 I had been using before, even after navigating for two and a half hours. So I decided to retire the other h910 I'd been using as my "main" phone, but leave it configured as a hot spare.
I picked up a XIAOMI Mi Mix 3 at Micro Center for USD $379.98, which I think is a steal hardware-wise. I'll use that as my main and personal phone, and the h910 I put into service two weeks ago as my car and business phone. That's assuming I like the XIAOMI, of course. I'll see if there's someplace I can talk about my initial impressions of that phone.
Richard
GeekOnTheHill said:
The "spare" h910 passed its navigation tests with flying colors. I took it for a two-and-a-half hour drive to Micro Center, and my favorite nav app (Magic Earth) performed flawlessly there and back. The only hiccup was on a small stretch of road where half the birds suddenly disappear from the sky due to the topography (the road was cut through rock). It confuses all GPS-based systems.
So that's my new navigation device. I'm also going to route my work number to it since I'm paying for the service anyway. I took the lowest-level AT&T prepaid plan with data. It's only 1 GB with one-month rollover, but I use very little. It will mainly be for traffic data for the navigation apps.
One thing I noticed was that the "car phone" was much cooler than the h910 I had been using before, even after navigating for two and a half hours. So I decided to retire the other h910 I'd been using as my "main" phone, but leave it configured as a hot spare.
I picked up a XIAOMI Mi Mix 3 at Micro Center for USD $379.98, which I think is a steal hardware-wise. I'll use that as my main and personal phone, and the h910 I put into service two weeks ago as my car and business phone. That's assuming I like the XIAOMI, of course. I'll see if there's someplace I can talk about my initial impressions of that phone.
Richard
Click to expand...
Click to collapse
I currently have a Xiaomi Poco F1 that I play with from time to time. only real problem with it is no network bands for Tmobile (Mint Sim)
I get a good strong signal on band 5 on AT&T so it fine for me.
I also had a Mi Mix 2s that seemed pretty solid. But it was Stolen and never recovered after just a month of use.
Anyway, Enjoy your new phone and Happy new year
clsA said:
I currently have a Xiaomi Poco F1 that I play with from time to time. only real problem with it is no network bands for Tmobile (Mint Sim)
I get a good strong signal on band 5 on AT&T so it fine for me.
I also had a Mi Mix 2s that seemed pretty solid. But it was Stolen and never recovered after just a month of use.
Anyway, Enjoy your new phone and Happy new year
Click to expand...
Click to collapse
Thank you, and Happy New Year to you, as well.
I forgot to update this thread, but sadly, I returned the Xiaomi the day after I bought it. Just when I actually thought I might get to like (or at least live with) MIUI, I made an actual phone call; and the sound quality was so horribly bad that I knew it was something I would not be able to live with.
I searched around for answers, and found something on Xiaomi's site about sometimes needing to reset the phone after doing the update that had been installed OTA after I bought the phone, so I tried that. But when it rebooted, it wouldn't accept my password. Neither would their Web site; and three password reset requests went unanswered. Then I tried by phone number, and it said the account didn't exist.
I packed up the phone, put the SIM in the V20 with the tired GPS, and also installed a new spare battery in that phone. I'd had the battery for a while but hadn't installed it because the battery life on the V20 was okay. But since I had the phone out of the case anyway, I installed it and charged it while I was on my way to Micro Center to return the Xiaomi.
My intention had been to buy another phone while I was there; but when I reached for the V20 after I parked the car, I noticed that it was cool. I thought I'd forgotten to plug the charging cable in because it had been running hot. But it was plugged in and fully-charged. So I'm guessing that the old battery was faulty and had been causing the heat issues in the V20. I guess that might have caused the GPS issues, too, although I haven't had time to check.
In any case, the one V20 works acceptably well for everything except navigation and mapping, and the other V20 works fine for navigation and mapping; so I'll just keep them both activated for now while I do more research. I do plan to purchase a newer phone, but I'm no longer in a hurry now that the one V20 is not overheating. It gives me time to do the kind of research I like to do before purchasing electronics.
Thanks again,
Richard

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