Develop Bugs

Amazing, Just Amazing!!! H TO 3G TO G maybe solved!!

I have just installed Evils Custom Barebone rom v5 on the dev bord for desire, its a rom build that has no sense, just helixlauncher2. Now before i installed this i had the stock rom running and that always kicked my network preference to G and if i set it to HSDPA only, i would get scratchy 3G/H... Since installing the bareback rom, which has no sense running at all, i am on 3g or h constantly, and when i load a web page it always kicks into H.
I must also add that after i rooted i also updated my radio (baseband) to the new one released, the asia update
This could mean that sense applications or sense itself is forcing our phones to 2G networks as preference, I know this idea is out of the box but its looking that way, especially in my case.
JD

JupiterDroid said:
I have just installed Evils Custom Barebone rom v5 on the dev bord for desire, its a rom build that has no sense, just helixlauncher2. Now before i installed this i had the stock rom running and that always kicked my network preference to G and if i set it to HSDPA only, i would get scratchy 3G/H... Since installing the bareback rom, which has no sense running at all, i am on 3g or h constantly, and when i load a web page it always kicks into H.
I must also add that after i rooted i also updated my radio (baseband) to the new one released, the asia update
This could mean that sense applications or sense itself is forcing our phones to 2G networks as preference, I know this idea is out of the box but its looking that way, especially in my case.
JD
Click to expand...
Click to collapse
very good news! although it's most likely the radio update that has fixed the problem! (i had the issue with the HD2 and it was discovered that it was not the fault of the Sense services that the connection would drop)
please keep us updated as it can take a while for the connection to drop, it can stay stable for hours and then drop like crazy.
thanks for posting but do keep us updated!
thanks!

Its definatly not the radio update mate as i still had the problem straight after rooting and updating to the new radio..... The problem only was solved when i installed the custom barebone rom, i now have HSDPA on tap, instead of blank spells when i had wcdma only on previous to the custom rom.
I just added that if people want to replicate what i did, then they have the full picture
Plus constant 3 bars of 3g reception
JD

JupiterDroid said:
Its definatly not the radio update mate as i still had the problem straight after rooting and updating to the new radio..... The problem only was solved when i installed the custom barebone rom, i now have HSDPA on tap, instead of blank spells when i had wcdma only on previous to the custom rom.
I just added that if people want to replicate what i did, then they have the full picture
Plus constant 3 bars of 3g reception
JD
Click to expand...
Click to collapse
strange
well please do some further testing and report back! download a 50mb file while surfing the net and see if it drops
if it doesn't then there is a fault with Sense which HTC must fix.

ok gonna test now, also just made a phone call which was liquid! pure liquid!! No breaks or anything... I think we may be on to something here guys! something thats pretty big!
This rom is avoid of any sense, sense looking like what is killing our connections;(
JD

Started to download 114mb nvidia graphics driver, whilst on 3 bars it was downloading very fast, then it dropped to two bars, and it hung, after downloading 2mb, then it popped back up to three bars, downloaded another 2mb and then dropped back down again to two bars. When surfing it always stays three bars. It looks like tmobile have put a cap on how much we can download in bursts.
Im still noticing 95 percent surfing on hsdpa improvment.
JD

also i think removing sense and all of its RAM burden helps the phone to make better and faster decision's. This could be whats happening here

Also reporting a better WIFI signal strength, wad usually one bar from my room, now is now a constant 2 bars on signal icon

Stock T-Mobile ROM, never had any issues?
This seems to happen with every new HTC release. Could it just be poor network performance?
Why do I never have issues? Live around Nottingham but work all over the UK, no problems with HSPA.

Ok, i unchecked under location, determine location by wifi towers.... Went to download that 114mb file again,
Worked 100 percent.
downloaded in just under 10 mins no hang))
so its solved!!
JD

hi i got the desire last week, what is this problem

PAULRYAN52 said:
hi i got the desire last week, what is this problem
Click to expand...
Click to collapse
Imaginary.

i dont have any problem with h or 3g

firedup said:
Imaginary.
Click to expand...
Click to collapse
just look at how many people up and down the country on this board that are having 3g/hsdpa problems..
If you have nothing productive to say then please reframe from commenting on this issue!

PAULRYAN52 said:
i dont have any problem with h or 3g
Click to expand...
Click to collapse
Paul some people are having intermittant G/3G/HSDPA
My problem was solved by not having Sense And with the CM Mod being uploaded as we speak i will see if its to draw with that as well.
But im definatly getting faster, always H speeds now, and the only thing i changed was the rom
JD

JupiterDroid said:
Paul some people are having intermittant G/3G/HSDPA
My problem was solved by not having Sense And with the CM Mod being uploaded as we speak i will see if its to draw with that as well.
But im definatly getting faster, always H speeds now, and the only thing i changed was the rom
JD
Click to expand...
Click to collapse
i must be lucky i dont seem to have the issue

So if some people have it and others don't how can it be device and not network related?

It's OS and Network related.
There's an open bug on the android development site about it. I don't know all the ins and outs but the OS seems to have some difficulty re-acquiring dropped signals. So if your network has dodgy 3G coverage you're more likely to experience this.
I'm sure it's far more complicated than my explanation though and involves all kinds of fascinating intricacies regarding the type of 3G coverage and automatic switching between the different connections yadda yadda...

Yeah its pretty deep, all i know is it has been fantastic since Sense has been off my phone

JupiterDroid said:
Ok, i unchecked under location, determine location by wifi towers.... Went to download that 114mb file again,
Worked 100 percent.
downloaded in just under 10 mins no hang))
so its solved!!
JD
Click to expand...
Click to collapse
Just to clarify here, switching rom and radio on your phone did not solve the issue as there was still a dropout, but what has fixed it is disabling the location, what do you mean location by wifi towers?

[Q] Sprint GS3 Signal Reception

So this is my first flash to a different ROM on my GS3. I have been rooted for a while and decided I wanted to try a different rom on 4.2.2 coming from 4.1.2 with touchwiz. I am using the Dirty Unicorns 4.2.2 ROM and I noticed my signal reception is spotty at best. I am talking data and voice together. I flashed back to my 4.1.2 touchwiz stock rom and the reception went back to normal. I did some research on this issue and started looking into APNs. I noticed the file on the Dirty Unicorns rom is full of VZW, CREDO, Sprint... but the stock Sprint ROM only has Sprint stuff. The differences in the 2 files, only looking at the Sprint settings is slightly different still.
Is this my issue? If so should I use the stock APN file?
I am using the stock MD4 baseband and my PRL is 25015. Any thoughts or troubleshooting steps are appreciated.

I did some deeper research to find that the signal reception seems to be reporting incorrectly in the Dirty Unicorns ROM. I downloaded an app from the play store called network info II. This reported my cell reception to be the same it was on the stock MD4 touchwiz rom. I also think that the signal bar is reporting the faulty reception listed in the about section of settings. I made a few phone calls and ran Pandora on the cell network with no abnormal loss of quality.

Try a app in play store
Signal Check Lite
Gives a lot of info and signal strength for data too

I like that app better than the other one I was using... Thanks for the tip!
GSXeclipsePSI said:
Try a app in play store
Signal Check Lite
Gives a lot of info and signal strength for data too
Click to expand...
Click to collapse
Back to my issue, it looks as if the phone is reporting correct numbers in the signal information fields. What it looks like it is showing is the data connection it is using. I also, sometimes, find my phone on LTE even when I connected to wireless seems interesting. I am not sure however about the signal bars at the top of the phone. Rarely ever do I see them rise above 2 bars. Maybe somebody from an AOSP rom or CM rom could chime in with an answer.. even a DEV!!
FYI: Would have posted this in the development forum but I didn't have enough posts at the time. I am also sharing my info just in case it isn't around or it helps someone else.

[SOLVED] Same problems over here
edit 10/10/13 [SOLVED]: I found this thread about Team Sonic Modem Flasher Tool. There are five available radios in the super easy package. 1-4 came up with error messages, "No SIM card," or no signal with an Unknown Baseband in the phone settings. The fifth one, "LI3" radio solved my problems.
The Flasher Tool doesn't have a means of backing up your current radio. Seems like as soon as you start installing these other radios, your original one (mine was an MB1) was gone. BTW, my phone Baseband was a long string of letters and numbers. The type of radio that you've got is the last three characters.
I was also experiencing problems with other ROMs than the stock rom on my Sprint Galaxy S3. I was running Cyanogenmod 10 release candidate, and it seems to me that the signal was way worse than with the stock rom. I would also be in downtown Seattle, certainly with LTE service, and still I was stuck at 3G. 4G/LTE seems to be a thing of the past with the newer ROMs that I've been enjoying.
At the moment I'm back to a stock ROM, CleanBean v4.2 with Android 4.1.2. It seems to be happier. But I won't be back to an area with normal cell service for quite some time.
An interesting idea that the ROMs were reporting the incorrect signal strength. But reporting 3G vs 4G incorrectly too? That seems like something else was wrong.
I was thinking perhaps it was the radio or something, but CM doesn't really mention anything about flashing specific radios.

Are you judging from actual numbers or the signal bar? The latter is notoriously inaccurate many times (and can vary depending on what rom you're using

As for not jumping on 4g when I should have been, that was my oops. I had the settings in the phone to only do CDMA/3G rather than LTE/CDMA/3G. I would flash the radio to the newest version and leave it at that. I heard from someone else in another thread that the radios don't get changed.
dkerlee said:
I was also experiencing problems with other ROMs than the stock rom on my Sprint Galaxy S3. I was running Cyanogenmod 10 release candidate, and it seems to me that the signal was way worse than with the stock rom. I would also be in downtown Seattle, certainly with LTE service, and still I was stuck at 3G. 4G/LTE seems to be a thing of the past with the newer ROMs that I've been enjoying.
At the moment I'm back to a stock ROM, CleanBean v4.2 with Android 4.1.2. It seems to be happier. But I won't be back to an area with normal cell service for quite some time.
An interesting idea that the ROMs were reporting the incorrect signal strength. But reporting 3G vs 4G incorrectly too? That seems like something else was wrong.
I was thinking perhaps it was the radio or something, but CM doesn't really mention anything about flashing specific radios.
Click to expand...
Click to collapse
As for the feeling that the signal was reported incorrectly, I learned this. Dirty Unicorns, probably most other modded ROMs as well, are reporting the TRUE data signal strength in the signal bars. I downloaded Signal Check Lite. I compared the signal reported in the ROM to what this program says and they are identical. The bars are reporting the connected network types signal strength (ie. LTE,3G). It also says to be showing the RSSP which has been widely skeptical in most threads. If you're worried about your signal, check that program before switching away from a ROM or going back to stock. I actually kind of like them displaying the good info rather than just voice signal.

Does the kernel being used have any affect on signal reception? I'm just curious because I've switched between a few different 4.3 ROMs and the quality of signal is different between them.
When I was running Slim Bean 4.3, receiving a data signal at work wasnt a big issue. This morning I flashed Liquid Smooth 4.3 and even though the numbers being reported for signal strength are very similar, data on Liquid Smooth is almost unusable. Let me reiterate; Same phone (latest PRL), same location, same radio (MD4), same signal data numbers, using 2 different 4.3 ROMs and getting 2 extremely different usability results.
I'm not blaming either ROM, so I dont want to post in said threads, but is there a reason why this would be happening?

You are using data on the cell network and not the wifi network correct? There is a slight chance that it could but it would be mostly dependent on your modems I think. I am sure the modems and the kernel interact but that is about it. Testing for my issues, I am flashing the stock kernel back in, after doing a nandroid of course.
Disclaimer: I could be speaking rubbish. If I am please feel free to correct me, as I am still trying to learn.
uodii said:
Does the kernel being used have any affect on signal reception? I'm just curious because I've switched between a few different 4.3 ROMs and the quality of signal is different between them.
When I was running Slim Bean 4.3, receiving a data signal at work wasnt a big issue. This morning I flashed Liquid Smooth 4.3 and even though the numbers being reported for signal strength are very similar, data on Liquid Smooth is almost unusable. Let me reiterate; Same phone (latest PRL), same location, same radio (MD4), same signal data numbers, using 2 different 4.3 ROMs and getting 2 extremely different usability results.
I'm not blaming either ROM, so I dont want to post in said threads, but is there a reason why this would be happening?
Click to expand...
Click to collapse

Custom ROM and stock kernel don't seem to work, at least with me. Recovering from nandroid right now.

Skeeredfitless said:
Custom ROM and stock kernel don't seem to work, at least with me. Recovering from nandroid right now.
Click to expand...
Click to collapse
On custom ROMs you run, I think its best to run the kernel that the developer incorporated into the ROM for awhile. Then if you are sure your picking the correct kernel, you can try it out, but not before a nandroid of course. A touchwiz kernel is not going to function correctly on a AOSP ROM. Can cause alot of problems, TW & AOSP kernels are 2 totally different animals.

My battery life is sucking. I am trying to improve it so I thought I might try the stock one.
joeyhdownsouth said:
On custom ROMs you run, I think its best to run the kernel that the developer incorporated into the ROM for awhile. A touchwiz kernel is not going to function correctly on a AOSP ROM. Can cause alot of problems, TW & AOSP kernels are 2 totally different animals.
Click to expand...
Click to collapse

Skeeredfitless said:
My battery life is sucking. I am trying to improve it so I thought I might try the stock one.
Click to expand...
Click to collapse
Too many factors to list can cause this, try a different ROM with a clean wipe. Never use a TW kernel on a AOSP ROM.

Why does every KK rom have data issues?

I've tried Liquidsmooth, CM Remix, Omni, and now Carbon. Every KK rom shows me the orange no data connection icon. Airplane mode toggle and wifi toggle doesn't work. Reboots only work sometimes. And that's not really a solution, rebooting my phone every 5 minutes. Why is this happening?

I only home that you switched all these ROMs with clean installs. Did you?

Of course

yea same here got a gnex on eBay having trouble getting it going ..looks like I'm going to an old ROM that my other gnex runs and at least has data connection
4.2.2. lol....
what baseband are people using for KK on gnex Verizon ?
Sent from my Galaxy Nexus using XDA Premium 4 mobile app

rsswga said:
yea same here got a gnex on eBay having trouble getting it going ..looks like I'm going to an old ROM that my other gnex runs and at least has data connection
4.2.2. lol....
what baseband are people using for KK on gnex Verizon ?
Sent from my Galaxy Nexus using XDA Premium 4 mobile app
Click to expand...
Click to collapse
yeah.. maybe your baseband version (radio.img) didnt suited you.
maybe broken driver ~ reflash kernel with wifi driver works for me. ( changing rom didnt change anything to radio/driver setting)

My old 4.2.2 JBSourcery gets signal just fine. And for some reason Omni gets better than the others but still cuts out.

Explodee said:
My old 4.2.2 JBSourcery gets signal just fine. And for some reason Omni gets better than the others but still cuts out.
Click to expand...
Click to collapse
your baseband??
sometimes when u using adblocker apps or network tweaks/mod its can easily mess your network setup. just double check if any.

Flashing roms doesnt change radios right?

the only way I can get data is if I put it right beside my network extender.
I've tried all the radios.. did I get a dud..?
sent from a violated gs3
---------- Post added at 02:13 PM ---------- Previous post was at 02:12 PM ----------
Explodee said:
Flashing roms doesnt change radios right?
Click to expand...
Click to collapse
nope
sent from a violated gs3

Explodee said:
Flashing roms doesnt change radios right?
Click to expand...
Click to collapse
rom can affects data coverage from the Rils files (in libs). usually continuously using 4.3 rils right now cause google doesn't update for gnex. gnex roms still on progress in this. CM & slim update the coverage issues so far. dont know wt others. sorry if im wrong..
http://www.slimroms.net/index.php/news/431-weekly-3-2

Explodee said:
I've tried Liquidsmooth, CM Remix, Omni, and now Carbon. Every KK rom shows me the orange no data connection icon. Airplane mode toggle and wifi toggle doesn't work. Reboots only work sometimes. And that's not really a solution, rebooting my phone every 5 minutes. Why is this happening?
Click to expand...
Click to collapse
I dont know what carrier you are on but when I was using my Verizon Galaxy Nexus, every ROM I flashed usually had no data on first boot. I got in the habit of rebooting the phone before I even went through the setup and after that, data had no issues. It was a known thing. Toggling airplane mode and 3g/LTE was also known to cause issues at one point. So if you clean flash, boot up and let it sit for a few seconds before going through the google setup. If data doesnt automatically connect, reboot right away. It should connect fine after that.

Yeah I'm on Verizon now. Hopefully making the switch to T-mo in about a month. The problem is not that data doesn't connect at all, the problem is that it will drop out and never come back. I live in Boston and in the subway I will lose the signal underground and it will never come back. Also my office is right in the main downtown area and I barely get a 3G signal no matter what. I know my signal strength isn't part of this problem. It's the data connection somehow becoming disconnected and staying idle that is stopping me from staying on KK.

Explodee said:
Yeah I'm on Verizon now. Hopefully making the switch to T-mo in about a month. The problem is not that data doesn't connect at all, the problem is that it will drop out and never come back. I live in Boston and in the subway I will lose the signal underground and it will never come back. Also my office is right in the main downtown area and I barely get a 3G signal no matter what. I know my signal strength isn't part of this problem. It's the data connection somehow becoming disconnected and staying idle that is stopping me from staying on KK.
Click to expand...
Click to collapse
Since you're on Verizon check shiny Rom. The guys there have done a lot of tweaking to improve data.
The reason data is problematic is partially since the gnex is no longer supported and the toro variant has had no officially android release since 4.2.2 and the ril and telephony stack have changed how they work with cdma in both 4.3 and 4.4. I believe the toro uses a bit of an older radio. Is this a problem when you disable 4g as well?
Sent from my HTC One using Tapatalk

I've gotta say that Shiny ROM is just about flawless. I've never had issues getting or keeping a data connection when there's signal. I'm using the FK01/FK02 radios from 4.2.2 and the 4.2 bootloader.
I'll give my little testimony here: a basic stock rom will get you farther than a fully-featured one. I've heard the expression "mo' features, mo' bugs" and that seems to fit quite well. I'm not aware of any features in any rom that you can't get from one xposed module or another, so that's what I've been doing. I'd say give it a try and see if your data issues are resolved for good.

Shiny has always worked fine for me. I run latest everything.. bootloader, radio. CM I think worked fine for me but was ugly. Paranoid Android seems to have some connectivity issues.. I wish someone could solve this data issues. Maybe it is time to leave my nexus behind Just been waiting for another verizon nexus
Explodee said:
I've tried Liquidsmooth, CM Remix, Omni, and now Carbon. Every KK rom shows me the orange no data connection icon. Airplane mode toggle and wifi toggle doesn't work. Reboots only work sometimes. And that's not really a solution, rebooting my phone every 5 minutes. Why is this happening?
Click to expand...
Click to collapse

I've got about 7 different Nandroids and have been switching between them to test. CM Remix which I believe is based on Slim seems to be working OK. I tried Slim this morning but still got a lot of data cut-outs

Explodee said:
I've got about 7 different Nandroids and have been switching between them to test. CM Remix which I believe is bases in Slim seems to be working OK. I tried Slim this morning but still got a lot of data cut-outs
Click to expand...
Click to collapse
wow.. lot of roms tested. that pretty brilliant idea for solving this. just use the best. data networks really different for each country.
* i found out a different in apn setting wt different rom. slim rom only captured 4g by my local provider (APN). when im tried asob its give choice in Apn setting ( 3g /4g). my country not fully h+ at several area. so changing to 3g got better network (better low than nothing)

memaro_maro said:
wow.. lot of roms tested. that pretty brilliant idea for solving this. just use the best. data networks really different for each country.
* i found out a different in apn setting wt different rom. slim rom only captured 4g by my local provider (APN). when im tried asob its give choice in Apn setting ( 3g /4g). my country not fully h+ at several area. so changing to 3g got better network (better low than nothing)
Click to expand...
Click to collapse
I don't think that applies to CDMA

Signal Issues

Hi all
So I know that many people have reported the same issue but no one ever seems to come to a conclusion on what is causing the problem...Some say it's the network, some say it's the software etc. Anyway I'm hoping to get to the bottom of this, my issue is as follows:
I see signal issues multiple times a day where I have signal bars and phone calls and texts work but data does not. The only thing which resolves the issue is a full reboot.
I currently run Cloudy G3 2.2 in my imported 32GB G3, I saw the same issues on the stock ROM too though. The signal issues only seem to occur when the signal drops to a low "H" signal...all the time i am in the office I have a full "H" signal and do not see the issue...the issue only occurs when the signal drops quite low...even when it goes back to full again the issue remains until I do a full reboot.
Anyone got any idea what this is all about? I don't want to have to switch phones to get rid of this issue....
Thanks

Just to be sure, did you flash the lollipop baseband when you installed cloudy

Ermmm I thought it came with the baseband?

Just checked and i do indeed have the Lolipop baseband...any other ideas? From searching around it seems a lot of people have this issue!

sheppy1 said:
Just checked and i do indeed have the Lolipop baseband...any other ideas? From searching around it seems a lot of people have this issue!
Click to expand...
Click to collapse
Id say if it happens on Stock Rom as well its probably a network issue related to the cell towers in your area. So i wouldnt worry too much about it

Can't be that either as it happens in multiple locations which are all around an hour from each other I'm gonna have to sell the phone at this rate and get a one plus one or something

sheppy1 said:
Hi all
So I know that many people have reported the same issue but no one ever seems to come to a conclusion on what is causing the problem...Some say it's the network, some say it's the software etc. Anyway I'm hoping to get to the bottom of this, my issue is as follows:
I see signal issues multiple times a day where I have signal bars and phone calls and texts work but data does not. The only thing which resolves the issue is a full reboot.
I currently run Cloudy G3 2.2 in my imported 32GB G3, I saw the same issues on the stock ROM too though. The signal issues only seem to occur when the signal drops to a low "H" signal...all the time i am in the office I have a full "H" signal and do not see the issue...the issue only occurs when the signal drops quite low...even when it goes back to full again the issue remains until I do a full reboot.
Anyone got any idea what this is all about? I don't want to have to switch phones to get rid of this issue....
Thanks
Click to expand...
Click to collapse
Try Flashing 'Newer' Modem, first.....
If you are using Model D855.....:- http://forum.xda-developers.com/showthread.php?t=3110376... Thanks to @Step-han

I have the latest 20p version already though, there are no newer versions

Have a case open with Vodafone (they have simply suggested sending the phone in for repair, not an option for me) and have a case with LG too who have only suggested basic things so far (none of which have worked) aiming to get both of them to progress the cases to their engineering teams

Mobile Network Standby draining battey on Oreo 8.1 ROMs

So, I was on latest MIUI China beta before. Somedays ago, I flashed the Resurrection Remix 6.0.0 (06.03.2018 build). Battery was draining fast. I checked battery usage and there was this ”Mobile Network Standby” which was draining the battery. It even consumed more power than Screen and Android System. I thought it was some bug on RR. So, I flashed Lineage OS 15.1 (05.03.2018 build). Everything was fine here too. Except that ”Mobile Network Standby” thing. It was draining battery on this ROM too. I tried L OS 15.1 12.03.2018 build and RR 6.0.0 10.03.2018 build. That bug still present in these ROMs too.
I tried possibly everything to fix that issue. I've tried following -
1. Network Setting Reset
2. Turn off Data always on in Developer Settings
3. Turn off VoLTE (I don't even use LTE here)
4. Clean cache via TWRP
5. Turn off WiFi scanning during sleep
6. Turn of Location Services
7. Turn off Google play Services wakelock and background running via Privacy Guard
8. Finally, I clean flashed both ROMs
But, Nothing has fixed the issue.
on Nougat 7.1.2 ROMs everything is absolutely fine. There's no draining issue
PS - I used stock kernel with CN Firmware 8.3.1 and 8.3.8
Is there any possible fix for this issue? Anyone else having this issue? Any updates on fixing this issue in future?
Sorry for my English btw
Thanks
Update: Using the ForceDoze (root method) app reduced the battery drain. But, it didn't really solve the problem

Try the app "ForceDoze", helps with almost any battery drain. Does require root though. Another explanation could be that your reception is bad for whatever reason, so also check that. Also flashing a newer GApps might help.

8166uy said:
Try the app "ForceDoze", helps with almost any battery drain. Does require root though. Another explanation could be that your reception is bad for whatever reason, so also check that. Also flashing a newer GApps might help.
Click to expand...
Click to collapse
Tried. Even tried Greenify force doze by rooting. No improvement.
And cellular reception is pretty fine here. I don't have this issue on nougat ROMs

I have same problem with clean lineagos 15.1. Probably everone on lineageos have the same problem. Thank you for listing what do not help. I do not have to try myself.

Nope, don't have it. Rarely goes above a few percent of the battery usage.

8166uy said:
Nope, don't have it. Rarely goes above a few percent of the battery usage.
Click to expand...
Click to collapse
what kernel and firmware you're using? did you clean flashed? and which rom btw?

Stock kernel, firmware 8.3.1, OpenGApps of 11th of March, LOS 15.1 version of 5th of march, and dirty flashed all in-between version since the switch to the "official" status.

I tried using sim slot 2, a sim duplicate, also I have migrate my network carrier... still the same...
Since I read it also happens in miui roms and it could be firm related issue I flashed oldest firm required by LOS15.1, that as luk said is 8.1.4, and after switching off WIFI it still drains my battery...
I don't know why this happens, and I don't know why it is happening just to a few of us but is totally annoying...

bite_your_idols said:
I tried using sim slot 2, a sim duplicate, also I have migrate my network carrier... still the same...
Since I read it also happens in miui roms and it could be firm related issue I flashed oldest firm required by LOS15.1, that as luk said is 8.1.4, and after switching off WIFI it still drains my battery...
I don't know why this happens, and I don't know why it is happening just to a few of us but is totally annoying...
Click to expand...
Click to collapse
Root and Use ForceDoze app
It reduced the drain noticeably. But, this drain still persists

8166uy said:
Try the app "ForceDoze", helps with almost any battery drain. Does require root though. Another explanation could be that your reception is bad for whatever reason, so also check that. Also flashing a newer GApps might help.
Click to expand...
Click to collapse
it reduced the drain via rooting. via adb it doesn't do anything. but the drain still exists. Thanks a lot

This problem occurs due to incorrect work with VoLTE, including after various ways to disable it (in the settings, through Build.prop, etc.) and is relevant only for some cellular operators.

Kiasyd said:
This problem occurs due to incorrect work with VoLTE, including after various ways to disable it (in the settings, through Build.prop, etc.) and is relevant only for some cellular operators.
Click to expand...
Click to collapse
I disabled VoLTE and I still have this drain. Dont think It's it.

Lesiuk said:
I disabled VoLTE and I still have this drain. Dont think It's it.
Click to expand...
Click to collapse
As I said, the problem don't be solved by switching off the VoLTE in all of the listed ways.

Fix for battery drain Oreo 8
Work around, issue is with 4G preferred network type under mobile network settings, just change to 3G and
all will be fine. Guess I'll be waiting for the good people of Android to send out fix one of these years?

gfm1948 said:
Work around, issue is with 4G preferred network type under mobile network settings, just change to 3G and
all will be fine. Guess I'll be waiting for the good people of Android to send out fix one of these years?
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all won't be fine. I've tried that. though, draining reduces on 3G network. but, mobile network standby still drains battery. no fix so far. not even a clue, what's causing this drain

I only get a noticeable drain on the train, so I guess it has something to do with connecting to, or scanning for, network masts.

im having the same issue but I have full signal lte. mobile standby is at 34% last I checked. clean install, gapps nano and magisk 16.4
volte disabled. klte galaxy s5 g900t.

I think i know whats happening. When i first installed los 15.1 on my s5 it showed 2 sims when i only have 1 sim port. A reboot seemed to fix the issue and now shows 1 sim. However, i also noticed that without signal, mobile network standby is at 72% draining battery. At this point im thinking the phone is searching for network. What if that even though there is full siignal on lte, the phone is continually searching and scanning even though its connected to cellular network?? Thus giving us this massive battery drain.

I have an Umidigi A1 PRO and had a similar issue, Mobile Network Manager battery drain. I contacted Umidigi and they replied to me:
"Ok, please go to 'Settings --> Security location --> Location (under Privacy) --> Scanning' and disable both Wi-Fi- and bluetooth scanning. That scanning function uses both bluetooth and WiFi (in any phone) even if they are turned off."
This reduced battery drain considerably and now overnight, with wifi switched off, battery usage is between 2% and 3%. Even in day with wifi switched on drain is what I would expect of any mobile. There must be a reason why this option is not placed under 'Network'. I haven't tested out the above (dual sim), but will try adding a second sim and see what happens as the the Mobile Network Manager battery usage is still above normal.
Regards.

I have the same Cell Standby issue.
However Wifi & Bluetooth scanning are disabled.
I have also set my preferred network to 3G since I don't have an LTE contract yet.
I'm currently using a Galaxy Note 4 (SM-N910F), with the current Resurrection Remix Oreo build (RR-O-v6.1.0-20180712-trlte-Official).
I sure hope somebody figures this out.