Develop Bugs

WiFi on the G3 headaches [SOLVED]

I just got an LG G3 last friday (Black Friday) on T-Mobile (got tired of Sprint). Anyway for the most part this phone has been great. A minor glitch with a game (possibly from porting it's data over from my S3). The main problem I have is with the WiFi.
First off WiFi calling sucks. If I don't have 3 or more bars on my WiFi connection the call gets fuzzy. During one call that was clear it just randomly dropped. So that isn't cool.
Secondly, if I connect to a WiFi network at home or work or where-ever and then go somewhere else and come back or go to another place with a network I want to connect to it won't connect at all. It will show all the networks and give me the option to connect. But instead of connecting it will try to connect for a long while and then just give up. I cannot get connected again until I reboot.
I have tried the suggestions found on this thread (and other places): http://forum.xda-developers.com/lg-g3/help/lg-g3-wifi-issues-t2829811
No luck with those suggestions. Which include the following:
Turn off and back on the wifi radio.
Disabling the "wifi signal is weak" option.
Disabling the battery saving for wifi.
Forgetting the network (my network list was automatically imported from my Google account).
Installing the "WiFi Manager" app and enabling the 5GHz channels (US) and changing 2.4GHz channels to "Complete".
Made sure that "Internet unavailable" option is disabled.
Made sure that "Keep Wi-Fi on when screen is off" is set to "Yes".
Disabling NFC.
Disabling BlueTooth.
Disabling Wi-Fi calling.
I don't have problems with a weak signal. So I am perplexed. My Samsung Galaxy S3 worked just fine on these networks. Restarting always seems to allow me to connect again. But I shouldn't have to restart every time I want to connect to WiFi.
All of my other wireless devices connect just fine in the household (a PS3, my fiance's Moto X, my old S3, MacBook Pro, Lenovo Windows 8 laptop, an HP running Ubuntu 14.10, and another Lenovo running Ubuntu 13.04).
Why is an older model phone doing so much better than the G3? Both phones are rooted (old and new). Does anyone have a fix? My phone is currently running LG's factory rom "D85110m". That is with Android 4.4.2 (my old S3 is on a cyanogen rom of the 4.4.x series as well).
Please help me fix this. Otherwise I might return it for an S5.
Thanks!
**** Update ****
Per my below post, it seems I have fixed my problem. I ended up doing two factory resets, unrooted, and did a final factory reset to fix the problem. Then I switched to the PurpleDrake method to root it the second time (and it worked really well without any issues).
Good luck everyone!
**** End of Update ****

Try to factory reset the phone. I don't know what version you are on but I assume its 10m

xmagiicsx said:
Try to factory reset the phone. I don't know what version you are on but I assume its 10m
Click to expand...
Click to collapse
It is on 10m. Do I need to unroot before I do the factory reset? I have never had to do one before.

So it appears that doing a factory reset does not fix it. I guess I am taking it back and having them replace it. And I will demand it be a brand new one since I just got this phone a little over a week ago.

SOLVED!!!!
Ok, so I finally got it fixed. Albeit accidentally as I didn't expect it to be fixed at this point.
Here is what I ended up doing:
Two factory resets.
Unrooted the phone (via these instructions: http://www.androidrootz.com/2014/07/how-to-unroot-lg-g3-all-variants.html).
One last factory reset at T-Mobile store by me (because they forced me to).
The wifi did not start working correctly again until after that very last factory reset that I did. The unroot process also does a factory reset. But, and this may be key, it downgraded my phone to 10c from 10m in the process. I then did an OTA to 10m after the final reset.
I unrooted it because T-Mobile's diag software detected it was rooted and said that made the warranty invalid. And after I unrooted it I took the phone back to the store and demonstrated the problem to the employee that sold me the phone in the first place. He tested it for about 10 minutes and came to the same conclusion as myself. He then had to go to his manager to approve the replacement.
They got out the new phone to replace it with then the manage told me that he was required to have us to one more factory reset. So I went into the settings on the phone and did one last reset. And for some reason, since this point, the wifi problem has gone away.
I think it is possible that something I did to the phone caused the problem in the first place. But since I did so much to it in the first few days (rooted and installed a ton of apps) I am not entirely sure. My two current theories are it was either caused by this malware infected flashlight app I installed that kept popping up the Play Store to install a particular app. Or it was caused by the rooting method I used.
The original rooting method I used was "Stump Root". So the second time around I used the PurpleDrake method. This is a tiny bit more tedious, but very effective and it didn't seem to break anything. Further, when I installed TWRP I made sure that I grabbed the recommended image for it that is specifically for the US T-Mobile LG G3 device and installed that using Flashify.
After I got it safely rooted I tested the crud out of it and it seems to be working fine.
One last thought. It is possible that somehow Titanium backup caused the problem when I restored text and call logs. But I seriously doubt it.
Anyway, if anyone has any questions for me about this please shoot me a message. I am more than happy to help.
Thanks,
Patrick

WiFi disconnect

So, I noticed my pixel 3 xl WiFi is disconnecting frequently.
It's connected to a secure 5Ghz band.
I did reset network, updated to November update
My other devices are properly connected and never had an issue. My S8 has never had this issue.
I did forget WiFi and tried again. It's only pixel 3 xl that's doing that.
I am not rooted and bootloader is locked..

LimitsX said:
So, I noticed my pixel 3 xl WiFi is disconnecting frequently.
It's connected to a secure 5Ghz band.
I did reset network, updated to November update
My other devices are properly connected and never had an issue. My S8 has never had this issue.
I did forget WiFi and tried again. It's only pixel 3 xl that's doing that.
I am not rooted and bootloader is locked..
Click to expand...
Click to collapse
I'm noticing the same thing. Can't narrow it down. Are you using any of those VPN based ad blockers?
Sent from my Pixel 3 XL using Tapatalk

bigdave79 said:
I'm noticing the same thing. Can't narrow it down. Are you using any of those VPN based ad blockers?
Sent from my Pixel 3 XL using Tapatalk
Click to expand...
Click to collapse
Nope, no VPN either.
I was just using Chrome connected to my TV the first gen. And it randomly disconnected again.
I did complete factory reset too. Same thing.

I'm having this same issue. When connected to WiFi, things typically work for a few seconds, then they go to hell. It's intermittent, and it never works for longer than a minute.
In my household there a Pixel 2 XL, S9+, LG V20, and this Pixel 3 XL. All phone's, game consoles, laptops, security cameras, and even guest phone's work fine, but not the Pixel 3 XL. It does the same crap on my works WiFi too.
When I first setup the phone, I transferred data from my old phone. It took 22 hours to complete whatever tasks it had to complete when the transfer was done. That turned out to be the start of my wifi issues.
I've factory reset, reset network settings, deleted all sorts of caches, tried other networks, different network settings, even tried removing my case, and bought a new router. Nothing works...

I'm also having disconnect issues. One of the Pixel's wi-fi connection issues FAQs suggested resetting the wireless router to see if that cleared things up. I tried that after forgetting & re-establishing the connection didn't help. It made a substantial improvement, but it did not eliminate them. Obviously something else is going on.

Mine seems ok. The only disconnects I ever experience are my XBOX One disconnecting in the middle of games...

gregb882 said:
I'm also having disconnect issues. One of the Pixel's wi-fi connection issues FAQs suggested resetting the wireless router to see if that cleared things up. I tried that after forgetting & re-establishing the connection didn't help. It made a substantial improvement, but it did not eliminate them. Obviously something else is going on.
Click to expand...
Click to collapse
I tried this too with no improvements. I dont think this is a good solution though since my wifi doesnt work on any network i try. I work for a fairly large company, getting them to reset the hundreds of routers they have would definitely not work!

I had the issue too and read somewhere that turning on Bluetooth would stabilize the WiFi connection.
I tried it and it works for me.
I don't consider it a solution, but it might be a usable workaround for you.

I too have been encountering the issue with WiFi disconnecting. That said I only know it is happening due to picking up my phone and apps connected to my smart home report no connections. The phone has reconnected to WiFi but the apps are not recovering.
I am not using VPN ad blocking and my Bluetooth is on.

My Bluetooth is never off, but some devices use the same piece of hardware for both so I've done the opposite and shut it off to see if that might fix it and there's no difference whether Bluetooth is on or off.
Thanks for posting a new idea though!

Same problem here but only with AVM Fritz WLAN products. Access points from other companys work without problem.
Wi-Fi disconnects every few minutes, switches to mobile and immediately reconnects.
AVM Support say that they have tested it with one of the employees Pixel 3XLs and it's working without problems.
Google replaced my device but same issue with the new one.
I tried flashing the very first Factory Image and it has the same problem. And with Q the problem exists too.

I was able to find a solution for me. It was caused by AFWall+.
I uninstalled it and installed new beta 3.2. Setting everything by hand and now the disconnects are gone ?

Android 10 broke my wifi

After taking the update my phone rebooted and a screen came up saying my OS was corrupted. I hit "try again" and the phone rebooted. The update broke my wifi connection... First it dropped out every 10 seconds. After I reset my router it got better but still drops out a few times an hour. I am unable to fix it. Wish I could go back to android 9 without resetting the phone.

panflute said:
After taking the update my phone rebooted and a screen came up saying my OS was corrupted. I hit "try again" and the phone rebooted. The update broke my wifi connection... First it dropped out every 10 seconds. After I reset my router it got better but still drops out a few times an hour. I am unable to fix it. Wish I could go back to android 9 without resetting the phone.
Click to expand...
Click to collapse
Sounds like you might need to try a factory reset. No "OS was corrupted" message here and my WiFi has been fine.
Sent from my Pixel 2 XL using Tapatalk

Well resetting my pixel 2xl means days of work so that is my last option. I had no problems with 9.
Here is one of my 9 screens. Every time I upload or download anything, including this room, my wifi drops in and out.
After playing with this all day I've determined that the wifi sensor itself has weakened. Some people are reporting the sensors in the phone do not work after the update.

All kinds of issues with the Pixel 2 XL with 10, blew it off and went back to 9.0 for now...restoring as we speak.

dendk said:
All kinds of issues with the Pixel 2 XL with 10, blew it off and went back to 9.0 for now...restoring as we speak.
Click to expand...
Click to collapse
What kind of issues?? I've actually found A10 to run pretty good on my P2XL. Just curious is all

Sensor problems, touch screen issues, reinstalled 10 sofar so good with it.

@dendk
Excuse me, you wrote above that you were downgrading to Pie. Did you upgrade again to 10 after that and everything's fine now?
I have actually downgraded to 9 until wifi problems get solved with a fix or something. After updating to 10, wifi kept disconecting from time to time.
dendk said:
Sensor problems, touch screen issues, reinstalled 10 sofar so good with it.
Click to expand...
Click to collapse
---------- Post added at 08:09 AM ---------- Previous post was at 07:54 AM ----------
@EeZeEpEe
I already did a factory reset. In fact, the problems with wifi begins as soon as, after factory resetting, you try to configure your "new" phone trying to connect to wifi. It does connect but saying "connected with no internet access".
I took some screenshots and sent them to Google support and they offered me to replace the phone.
What I have done so far is to downgrade to Pie. The wifi problems have disappeared, so it is clearly a software problem. Many others have reported exactly the same in some forums.
I will wait until Google comes with a fix for this.
EeZeEpEe said:
Sounds like you might need to try a factory reset. No "OS was corrupted" message here and my WiFi has been fine.
Sent from my Pixel 2 XL using Tapatalk
Click to expand...
Click to collapse

Nobody here with wifi problems after Android 10 update?

Here goes a possible (and temporary) solution, until Google solves this problem.
After many tests, I have come to a conclusion: Android 10 on Pixel 2 XL (at least on mine) has made the phone have a really poor coverage for the 5Ghz wifi band. When connected to that band, as soon as I get a little bit far from the router, I receive the "Connected with no internet" and after a while my phone disconnects and inmediately tries to connect again in an endless loop.
The good news is that I've been able to get a stable connection... but only on the 2,4Ghz. For this, I've had to make some changes both in the router and in the phone:
- In my router (O2/Telefonica in Spain, Mitrastar router) on the 5Ghz band configuration I had to remove the Guest/Virtual Access Point, which was pointing to the 2,4Ghz band. I suppose other routers will have a similar configuration.
- In my phone I made sure that I connected only to the 2,4Ghz band (you should see two wifi networks, one with PLUS or something like that and one without the PLUS: this is the one you have to select).
- Once connected, make sure you select "use device MAC" instead of "use arbitrary MAC" under connection configuration. The second is default on Android 10 and can make some routers go crazy because they think you are a hacker or something and so they block your connection.
After that, you should have an absolutely stable connection as you used to on Android 9 Pie, only that you are using the 2,4Ghz and not your fast 5Ghz connection. Obviosly this is a temporary solution until Google solves this. But at the moment I don't really need that extra speed on my phone, so I can live with that.
What is abolutely clear is that this an Android 10 bug and it only happens with certain Pixel phones like Pixel 2 XL. Mi wife's 3a XL has no problem at all after the update.
Hope this helps.

I have actually noticed the same exact issues going on with my Pixel 2 XL on Android 10. IHow do I change so that using my device's MAC address is the default option?

I have actually noticed this issues going on with my Pixel 2 XL on Android 10. In android 9 wifi connectivity was really really good. i have been using this phone since the launch without any issue but recently after updating to android 10 i have seen that the wifi connection is really really poor. Sometimes even disconnect automatically & sometime while connected to the wifi it shows no internet connection. I guess this is a software problem!!! I hope google fix this ..

Only on the 5Gz band. 2,4Ghz band remains stable. Just make sure you connect to that band.
astaineakash said:
I have actually noticed this issues going on with my Pixel 2 XL on Android 10. In android 9 wifi connectivity was really really good. i have been using this phone since the launch without any issue but recently after updating to android 10 i have seen that the wifi connection is really really poor. Sometimes even disconnect automatically & sometime while connected to the wifi it shows no internet connection. I guess this is a software problem!!! I hope google fix this ..
Click to expand...
Click to collapse
---------- Post added at 07:26 AM ---------- Previous post was at 06:49 AM ----------
You can try one more thing. On the 5Ghz configuration of your router, try to change the channel setting to a fixed channel instead of the predetermined Auto (I have set mine to 100(DFS)) and connect again from your Pixel. It will probably say "Connected, no internet" for a while, but just wait for a minute till it gets connected to the Internet and see if it stays stable

Just so you don't feel alone. I also started have wifi issues immediately after upgrading to Android 10

I've been having the same wifi problem that others have mentioned since the Android 10 update. However, it is also affecting my cellular and data signals, albeit to a lesser degree. Google tech support had me do diagnostics (rebooting in safe mode) and determined that I do indeed have a problem. However they want me to go through Verizon to try and get a replacement phone. They said if Verizon won't replace it, then they will. I really don't want to trade in my practically new phone on a refurbished model, so I'm going to live with this for a while longer and see if Google will release a new update to fix this bug.

I just got off the phone with Google Fi support about my Pixel 2XL and its' wifi issues are the same. I downloaded 10 like the first or second day it was available and began having issues with wifi immediately. Pictures on websites would not load and the pages load ten times slower. They recommended to send feedback and the steps I have taken to attempt a resolution but, I still have the same problem. I did a factory reset and still no fix for it. They first wanted to possibly send me a new replacement but, I was adamant that it was the software and not hardware since the wifi was perfect right before I updated to Android 10. Feedback will be sent so they can provide it in there November Security Update.(crossing fingers)

Totally concur with this thread, started as soon as I updated to A10B5. 5G connects, shows no bars, and "no internet connection". Using my old Nexus 6 at the same spot, 2 or 3 bars, internet connection right away. Just wondering if anyone that is unlocked has tried flashing the last 'Pie" radio file and results?

I too have connectivity issues on a pixel 2 XL even after a factory reset. I'm using a dual band AT&T Gateway or a Asus dual band router. I haven't tried turning off the same named 5 gigahertz band to see if it makes a difference, after reading here.

I havent had any issues with Wifi that i know of. But im having charging issues and sound issues

I'm having a similar issue with the normal Pixel 2 and using Google WiFi mesh system.
My pixel 2 refuses to connect to the 5Ghz network at my place whereas at my parents place (also using Google WiFi) it connects flawlessly to the 5Ghz one.
My pixel 3 XL is also connecting without any problems.
I used the app WiFi analyzer on my pixel 3XL and noticed that my Google WiFi is using the 5126 frequency.
If I use the same app on my pixel 2 it isn't even going that far.
At my parents place the frequency used is way lower.
Around 5000'ish

I'm having the same issues with WiFi. I finally disabled the 5 GHz signal from my router so I'm now only using the 2.4 GHz signal. This made my WiFi so much better at home. There is a lengthy thread about this issue in the Pixel Support forums, but it doesn't seem like anyone from Google has stopped by there to assist or gather info.
Sent from my Pixel 2 XL using Tapatalk

LG G7 PM/ULM stopped voice roaming

Long story short, I have 2 LG G7's that I got from eBay as "fake" PM's and were flashed to ULM (20.f). Both were activated on Twigby (native Sprint coverage plus voice roaming through both Verizon and it's roaming partners and Sprint's roaming partners; no data roaming available) and have worked flawlessly over past 6 months. Android 9.
Then suddenly, couple days ago, one of the G7's has lost roaming capabilities. Tried network reset and factory reset, but it didn't fix it. I know it can see the Verizon towers but it never connects to them.
The other G7 is still working fine. Twigby support is good (I spent couple hours with them troubleshooting) but they don't sell these phones and their best educated answer was that there is some kind of hardware damage or the system files are corrupted (especially that factory reset didn't fix anything)
The only roaming setting I can find is the data roaming, which is off. I am 100% convinced that I have seen a more complex set of options that included voice/call roaming too, but I cannot locate it right now. Maybe it was under Android 8 (that's how it was shipped to me)
Questions to you, and trying to save some time.
- obviously, what could be wrong? (especially if you had a similar experience)
- should I try to re-flash the same version? (I think it's 20.f)
- or should I roll it back to newest Android 8 version? (hoping to be able to use the call/voice roaming setting)
- what about Lineage?
Thanks.

FYI, I first reflashed it with Android 8 file and the roaming worked right away. Reflashed it again with 20f file and it's still working.
No idea what caused it but re-flash is the fix.

ooompa said:
FYI, I first reflashed it with Android 8 file and the roaming worked right away. Reflashed it again with 20f file and it's still working.
No idea what caused it but re-flash is the fix.
Click to expand...
Click to collapse
Looks like something got corrupted in the os , glad to see the reflashing fixed it!

Question ⚠️ Suddenly, The mobile data connection started to fail.

POCO F3
Suddenly, The mobile data connection started to fail.
It suddenly disconnects, and I have to turn airplane mode on and off to get it to connect again, but it doesn't take long, it varies, and the connection is lost again.
And when it's connected, it's very slow, but a lot, it went from a 15mbps connection (before the problem), to a .3mbps connection. I have installed several ROM'S, and nothing fixes it. Another thing I've noticed is that suddenly he also started using Roaming when he didn't have it before.

Update: Testing with another mobile, with the same SIMCARD, i can connect to my red 4G, but in this POCO F3, when i tried connect to 4g cant, I get a notification that the selected network cannot be connected, The only one that accepts me is the one with 4G R (I think it's roaming).

UPDATE: Also I think that is a problem of crash of the Band 28 LTE

My modem often crashes too, since I bought the phone last year. Standard ROM, no unlock/root, updates when FW goes out.
I mostly see modem crash when the phone switch from wifi to LTE to wifi to LTE etc when I go outside. At one point I notice I have no data connection, sometimes it displays the "no SIM card" icon, the modem program loops and crash and the phone becomes warm because of this and lose its battery real fast.
Only cure is to reboot the phone.

Hi, my phone just started having a very similar issue after working fine for almost two years. I am on T-mobile in US, where are you? Did you find out any more info on this?

stevencrayne2 said:
Hi, my phone just started having a very similar issue after working fine for almost two years. I am on T-mobile in US, where are you? Did you find out any more info on this?
Click to expand...
Click to collapse
The truth is that I never found out, what I did find out is that my IMEI of my cell phone had a report of theft (I bought it second-hand) and only 2 networks (from my country) grabbed me: "telcel and altán", of which altán only got roaming and only telcel got the original 4g, on the other hand "at&t and movistar", nothing, only the company detected me, but they didn't get a signal... No way, I gave up, I switched to the only one that if he caught me it was Telcel (even if he didn't want to).

stevencrayne2 said:
Hi, my phone just started having a very similar issue after working fine for almost two years. I am on T-mobile in US, where are you? Did you find out any more info on this?
Click to expand...
Click to collapse
A lot of people complain about modem crash since the beginning, Xiaomi never fixed it. It seems the problem is happening when switching cell towers/wifi. At one point you notice you have no data or the "no sim" icon, you have to reboot.

I was experiencing that a lot when I was on a MVNO for the major networks (Mint Mobile, Google Fi, etc.). Upon switching to AT&T Prepaid, I am experiencing far, far fewer disconnects. Some particular locations will give me the exclamation point, but by and large it's much better.

It seems everyone is torn in half, between this glitch being software related, or hardware related.
I have tried everything to blocking out certain bands with network guru, to taking my phone apart and looking for some kind of issue. Been through countless roms, and firmwares, and kernels. I've gotten a new Sim card too. Have tried Compressed air. with nothing seeming to solve this issue permidently.

Zinnz said:
It seems everyone is torn in half, between this glitch being software related, or hardware related.
I have tried everything to blocking out certain bands with network guru, to taking my phone apart and looking for some kind of issue. Been through countless roms, and firmwares, and kernels. I've gotten a new Sim card too. Have tried Compressed air. with nothing seeming to solve this issue permidently.
Click to expand...
Click to collapse
For what it's worth, I'm also using a custom ROM (Arrow OS 13). I recall a while back there being kernels people developed that attempted to address the phone restarting issue.

Veiranx said:
For what it's worth, I'm also using a custom ROM (Arrow OS 13). I recall a while back there being kernels people developed that attempted to address the phone restarting issue.
Click to expand...
Click to collapse
Phone does not restart. It's just that at one point, you notice your data are not working, you cannot enable them, nor make phone calls, you may have the "no sim" account, your phone may go warm because the modem is constantly restarting.
In the end, you have to reboot your phone and everything is normal again.
As it about always happens while outside, I cannot connect a usb cable to dump logcat or others.

Magister54 said:
Phone does not restart. It's just that at one point, you notice your data are not working, you cannot enable them, nor make phone calls, you may have the "no sim" account, your phone may go warm because the modem is constantly restarting.
In the end, you have to reboot your phone and everything is normal again.
As it about always happens while outside, I cannot connect a usb cable to dump logcat or others.
Click to expand...
Click to collapse
Try to put some pressure on the phone screen, not too much, push down slightly or press it together in your hands while holding volume up volume down and power button. Let me know if this helps

Zinnz said:
Try to put some pressure on the phone screen, not too much, push down slightly or press it together in your hands while holding volume up volume down and power button. Let me know if this helps
Click to expand...
Click to collapse
Were you listening to something on Bluetooth via mobile data?
were you driving?
What was the ambient temperature in the room or outside when this occured?
Just trying to narrow down hardware or software.
My poco f3 likes to reboot with the no Sim error, when I'm driving around on mobile data, listening to Spotify via Bluetooth.
I'm curious what circumstances other users have encountered this error in, or what they were doing at the time when it occurred

As it happens about only when I'm outside, I can be driving (phone connected in BT) or walking.
But my phone never reboots, never.