Hello. After upgrade my E975 I have a WiFi problem - it is slow. Speedtest shows up to 4 mbps when my PC connected to the same router shows 60 mpbs on the same server. I had France V20a and I have done factory reset because led notifications didnt work, now Im on V20 GER and WiFi is still slow.
I don't now exactly when the problem was show up, because i didnt testing wifi after update from JB. What should I do? Factory reset again?
Please, help me guys
i have the same problem...or an even worse one. after updating, the wifi signal is really weak. i cannot find networks that other phones (or our phone before the update) are connected to. i tried everything. factory reset. re flashing the rom , nothing seems to be working...can someone please help us?
Related
Wildfire with
ROM: CM 7.2
Kernel: 2.6.35.14-InfinityPlay
Radio: 3.35.20.16
For the last year wifi, after a short period of time i can't download, I mean, some times i connect, get into market for example and download/update, but after some time i can't, it's not a market problem because i can't download from anywhere, regardless the app, but i can browse normally(!), the problem is only in downloading. Even if i reset wifi, go in and out of airplane mode, restart the phone etc, the problem stays. Maybe if i try the next day it works ok. I dont know how it occurs or when and why, nor how/why/when it gets fixed...
The problem started when I had rompuzzle 2.2.1 a year before, till now. Since then I have flashed stock rom with 2.2.1, jockerdroid 4.2, cm 7.1, and cm 7.2 that i have now.
I suspect it is a radio problem, but can't be sure.
*Also sometimes I have low gsm signal, even in well covered areas.
Any ideas/suggestions?
Thanks
You said you flashed stock rom, i suppose it was a stock rom from Android?
It really looks like you have a problem with your radio (like you allready say for yourself).
It seems you have the newest one, so try a lower version.
I you have troubles finding a radio because the host is down or something just pm me or try google.
Hope this helped! Kind regards.
try radio 20.10
i have tried all 3 radios, but the problem stays. But i have noticed that when i enable tether and i put in the console the command for reverse tethering *usually* it gets fixed until the next time that i disconnect from my wi-fi.
i have not the same but similar problem,after a while i get dropped from router,even if my phone says its connected...this started to happen after changing our router (which i couldnt and cant set up) and setting up "N" wifi network...i found two options,how to solve it..
1)use free app wifi fixer from google play store (which somehow manages to know if you are connected or not and can automatically reassociate with router again)
or
2)flash HCDR.Kernel_v4_Flashable.zip from op on this page http://forum.xda-developers.com/showthread.php?t=798471
maybe it help, maybe not.. gl
I have *temporary* solved the problem by following the reverse tethering guide... I don't know why but after doing this procedure I can connect normally to my router, and if it disconnects (rarely) I just repeat the steps of the guide.
My phone started turning on and off its 3g connection. Wifi works solid.
I'm on a good signal area. It's not like the 3g is on and I can't connect in anything.
The problem is that the phone turns on and off. It doesnt fix the 3g connection.
Also, Checkin service it's draining the battery a lot.
Looks like a software problem with Google Play Services and its Connection checking service.
Anybody have seen this problem?
thanks in advance.
Starting to worry right now. Did a factory reset on a flashed V10j KDZ and it didn't change.
TWRPed a 20A Lollipop rooted ZIP and it didn't change. Right now I'm trying to go back stock using LG PC Suite.
I can't understand why this can be a hardware problem because 3G actually works but it keeps constantly getting on/off in ~10 seconds intervals.
Looks like a bad system file that is messing with it.
EDIT: Also, the phone can't search for mobile networks anymore. I just tell it to do a manual search and it can't find anything.
What would this be? Modem file broke? WTH.
alfablac said:
Starting to worry right now. Did a factory reset on a flashed V10j KDZ and it didn't change.
TWRPed a 20A Lollipop rooted ZIP and it didn't change. Right now I'm trying to go back stock using LG PC Suite.
I can't understand why this can be a hardware problem because 3G actually works but it keeps constantly getting on/off in ~10 seconds intervals.
Looks like a bad system file that is messing with it.
EDIT: Also, the phone can't search for mobile networks anymore. I just tell it to do a manual search and it can't find anything.
What would this be? Modem file broke? WTH.
Click to expand...
Click to collapse
I have random disconnects/drops too, Although my 3G/LTE icon never actually goes away, just the signal.
Personally I would suspect your modem as #1 suspect.
Factory reset rarely fixes much, I would try re-flashing the phone.
If KDZ flash doesn't fix it maybe try a tot & dll flash using LG Flash Tools with modified megalock.
It definitely looks like a modem issue BUT it can be a your os. I had issues where my modem wouldn't flash from a stock flash on my S4, But manually flashing my modem would SOMETIMES work, I would have to flash the modem a few times usually before it would actually flash.
I had problems before but it was caused by network. Did you tried with different SIM card from other network?
I have the same problem and couldn´t fix yet... Didn´t try to use another SIM card to check if is a network trouble, but it´s driving me crazy to be without connection and a huge battery draining...
Any other ideas?
viniciuscordeiro said:
I have the same problem and couldn´t fix yet... Didn´t try to use another SIM card to check if is a network trouble, but it´s driving me crazy to be without connection and a huge battery draining...
Any other ideas?
Click to expand...
Click to collapse
Just try with other network SIM. I had same problem long time back with Nokia n96, Motorola defy and some other phones. Some of time it helped to set phone only to use 2g network. That was happening the most of time when i used VIP network in Serbia.
Setting only 2g signal helped sometimes but after changing SIM card, problem was solved.
This problem happen to me without reason and after some time i tried same network again, there was no problems.
Probably a different SIM will correct the problem, because after a lot of trial and error changes I realized that the current Network APN (you can reach going on Mobile Networks inside Connections and Networks [translation] in the Settings) was faulty. I deleted the APNs and made a restore. (Delete and Restore are the only options inside Network APNs).
I imagine that changing SIM cards from another carrier will reconfigure the APNs and probably fix the problem.
I´ve tried a different SIM card and didn´t found any troubles, but when I put mine, the problem come back again... So it´s a problem with my carrier. I´ve deleted the APN settings, restart, restore, restart again and didn´t solve. I´ll call them to check if they are experiencing any network issues.
Hello!
This began about a month ago. I was using Lollipop 5.0 and had absolutely no problems with my phone until one day, all of a sudden I wasn't able to connect to my home wifi network. I enter the password and it just says saved,secured. Then I discovered I was unable to connect to any secured wifi network. I tried soft and hard restarting my phone, restarting my router, forgetting my home network and trying to reconnect, I tried clearing my Google services frame work data, and still nothing.
I finally decided to downgrade to Kit Kat and did a factory reset and loaded a stock version; no dice, I still was not able to connect to secured wifi networks. I tried rooting my device and deleting wpa_supplicants.conf, still back to square one.
I find that I am able to connect to unsecured wifi networks.
Im at my wits end, I really do not know what to do. Please help.
tsp
thestonedphilosopher said:
Hello!
This began about a month ago. I was using Lollipop 5.0 and had absolutely no problems with my phone until one day, all of a sudden I wasn't able to connect to my home wifi network. I enter the password and it just says saved,secured. Then I discovered I was unable to connect to any secured wifi network. I tried soft and hard restarting my phone, restarting my router, forgetting my home network and trying to reconnect, I tried clearing my Google services frame work data, and still nothing.
I finally decided to downgrade to Kit Kat and did a factory reset and loaded a stock version; no dice, I still was not able to connect to secured wifi networks. I tried rooting my device and deleting wpa_supplicants.conf, still back to square one.
I find that I am able to connect to unsecured wifi networks.
Im at my wits end, I really do not know what to do. Please help.
tsp
Click to expand...
Click to collapse
I think it's very normal you cant connect to secured networks,why do you think ,they are secured? :laugh:
ludoke said:
I think it's very normal you cant connect to secured networks,why do you think ,they are secured? :laugh:
Click to expand...
Click to collapse
These are known networks that I have the passwords for.
Same problem on lg g3 6.0...
Saved,secured but not connecting.
any fix for that ?
So the problem I'm having with my G3 is that the Network either drops and comes back repeatedly or completely drops and does not return. This only happens on 4G. When I go into network settings and change network mode to 3G it works fine and I get a constant signal all the time.
I have been using Fulmics ROM and I thought maybe that was the issue. But it wasn't.
I tried 3 different sims from three different carriers (Three, EE, O2) on several stock firmwares. (20N, 21C, 30A, 30F).
Each scenario is the same; network drops when phone is on 4G network mode, but its fine on 3G mode.
However, I have noticed that if I leave Wifi OFF allowing 4G data to connect first, then its fine. I can even turn Wifi ON again and the network is stable. I can even turn Wifi and Data OFF and the network is still stable.
But, if I toggle aeroplane mode, where Wifi connects first or where Wifi and Data is turned OFF; I am back to the network dropping.
Also, I live in London UK so there should not be any signal issues. Can anyone tell me why this is happening. I doubt it's software issue as I've tried several firmwares.
Any help is appreciated.
Mate I'm afraid there is a high possibility it's the Fulmics ROM.. I'm still trying to read up on the issue myslef, there's a ton of reports in the Fulmics thread and around.

I'm using an UK bought LG G3 as well (from Three) and started experiencing similiar issues after I flashed Fulmics. Even tried rolling back to 4.4.2 using a .tot file but didn't really help me.
Still scouring all around trying to find how to fix the issue..
engmia said:
Mate I'm afraid there is a high possibility it's the Fulmics ROM.. I'm still trying to read up on the issue myslef, there's a ton of reports in the Fulmics thread and around.

I'm using an UK bought LG G3 as well (from Three) and started experiencing similiar issues after I flashed Fulmics. Even tried rolling back to 4.4.2 using a .tot file but didn't really help me.
Still scouring all around trying to find how to fix the issue..
Click to expand...
Click to collapse
Hmmm looking back now this issue did start when I first installed fulmics 3.5. But shouldn't everything revert back to stock when you reinstall stock firmware.
thufz9585 said:
Hmmm looking back now this issue did start when I first installed fulmics 3.5. But shouldn't everything revert back to stock when you reinstall stock firmware.
Click to expand...
Click to collapse
That's what I thought but I guess it's a little bit more tricky.
Anyways I think I managed to restore some kind of stability in the signal, still unsure about the process though. Seems that different stuff are working for different people. In a few days I hope to have some information to give you how to fix it.
In the meantime try checking the Fulmics thread for ideas and suggestions (that's where I start off from).
engmia said:
That's what I thought but I guess it's a little bit more tricky.
Anyways I think I managed to restore some kind of stability in the signal, still unsure about the process though. Seems that different stuff are working for different people. In a few days I hope to have some information to give you how to fix it.
In the meantime try checking the Fulmics thread for ideas and suggestions (that's where I start off from).
Click to expand...
Click to collapse
Yeah let me know when you find a fix. Really appreciate the help.
One thing that is sort of a temporary fix for me, works on Three, EE and O2 (only ones i tried), is connecting Data first when on 4G mode.
So if I toggle airplane mode and if Wifi connects first then the network drops or keeps refreshing.
But, if I leave Wifi OFF and Data establishes a connection; the network is stable and I can then turn Wifi On again and the network will remain stable.
I just have to make sure the network does not lose connection (i.e. tunnel or airplane mode), and if it does ensure Data connects first.
Also, another thing. After I reinstalled Fulmic 5.3 it seems 4G mode is sort of stable. As in when on 4G mode instead of dropping the network it connects via 3G automatically. But this only happens with Three.
thufz9585 said:
Yeah let me know when you find a fix. Really appreciate the help.
One thing that is sort of a temporary fix for me, works on Three, EE and O2 (only ones i tried), is connecting Data first when on 4G mode.
So if I toggle airplane mode and if Wifi connects first then the network drops or keeps refreshing.
But, if I leave Wifi OFF and Data establishes a connection; the network is stable and I can then turn Wifi On again and the network will remain stable.
I just have to make sure the network does not lose connection (i.e. tunnel or airplane mode), and if it does ensure Data connects first.
Click to expand...
Click to collapse
Okay here is what worked for me - open this guide and download the Three specifiic Lollipop and Marshmallow .kdz files.
Flash the stock Marshmallow firmware first using the LG Flash Tool method. Your phone probably won't automatically get recognized since you're running Fulmics now so you'll need to change the COM port as described in post #
After that downgrade to stock Lollipop using the LGUP method. Personally I downloaded more updated (I think, not sure) files from here.
Then I proceeded to re-root and clean install Fulmics 5.1 and the 5.2 and 5.3 OTA updates from recovery. Booted and network works without drops now with 4G connectivity.
thufz9585 said:
Also, another thing. After I reinstalled Fulmic 5.3 it seems 4G mode is sort of stable. As in when on 4G mode instead of dropping the network it connects via 3G automatically. But this only happens with Three.
Click to expand...
Click to collapse
I changed my carrier and got an automatic SMS with configuration for my phone and instructions to save it. I should've known something was fishy when I recieved the "congratulations for setting up" message even before I recieved the actual settings. Anyways 4G was running fine on my new carrier with 32 mbps speed which is okay, much better compared to the same carrier 3G network, however I only had 3 bars of connection so I gussed what the heck, I should save that configuration after all, it might make things better. What a bloody mistake. I lost 4G connectivity and my phone refused to connect to the 4G network, only 3G (just as you describe).
What worked for me in this scenario was wiping the cache and dalvik (not really sure this step is even necessary to be honest, but I was headed for a full rom re-wipe anyway and decided to try with this first), going into the hidden menu and choosing LTE only connectivity (Fulmics Tweaks -> Hidden Menu [or the hidden code for the phone app if you decided to stay on stock, which I dont have] -> Modem Protocol -> RAT Selection -> LTE only. At this step my phone got to the usual 3 to 4 bars of connectiviy but was displaying "Emergency mode only" and no data at all. I proceeded to Settings -> Networks -> More -> Mobile Networks -> Access point names -> Reset to default from the menu. If network mode doesn't change back to GSM/WCDMA/LTE auto automatically, change it back manually. At this point I had restored back my 4G connection and everything is working normally (30-32 mbps connection stationary in my house through a wifi hotspot next to my laptop).
Good luck, I would follow the steps as described just in case. I tried many reflashes before that should've worked but didn't for me. However different things work for different people, hope this works for you and please report back
engmia said:
Okay here is what worked for me - open this guide and download the Three specifiic Lollipop and Marshmallow .kdz files.
Flash the stock Marshmallow firmware first using the LG Flash Tool method. Your phone probably won't automatically get recognized since you're running Fulmics now so you'll need to change the COM port as described in post #
After that downgrade to stock Lollipop using the LGUP method. Personally I downloaded more updated (I think, not sure) files from here.
Then I proceeded to re-root and clean install Fulmics 5.1 and the 5.2 and 5.3 OTA updates from recovery. Booted and network works without drops now with 4G connectivity.
Click to expand...
Click to collapse
I'd like to thank you so much for this information! I was having signal drop issue after installing Fulmics ROM. Tried to flash stock ROM but no success. After doing the downgrade via LGUP method to LP my phone is getting full signal again (at least I didn't notice any drop until now).
Thank you!
waltertakashi said:
I'd like to thank you so much for this information! I was having signal drop issue after installing Fulmics ROM. Tried to flash stock ROM but no success. After doing the downgrade via LGUP method to LP my phone is getting full signal again (at least I didn't notice any drop until now).
Thank you!
Click to expand...
Click to collapse
Glad I could be of help!
engmia said:
Okay here is what worked for me - open this guide and download the Three specifiic Lollipop and Marshmallow .kdz files.
Flash the stock Marshmallow firmware first using the LG Flash Tool method. Your phone probably won't automatically get recognized since you're running Fulmics now so you'll need to change the COM port as described in post #
After that downgrade to stock Lollipop using the LGUP method. Personally I downloaded more updated (I think, not sure) files from here.
Then I proceeded to re-root and clean install Fulmics 5.1 and the 5.2 and 5.3 OTA updates from recovery. Booted and network works without drops now with 4G connectivity.
Click to expand...
Click to collapse
Sorry for the late reply.
I followed your instructions and unfortunately it didn't work. :crying:
I first tried with the D85520f you provided and then with an updated D85521C firmware. But nothing worked.
The temporary fix, which I found works, is to ensure 4G mobile data establishes a connection first before Wifi (turn Wifi OFF then ON after data established). Then there is no signal drop until I go through a tunnel or phone restarts (signal drops completely), which means again i have to ensure 4G mobile data establishes a connection before Wifi or else it'll go back to the constant signal dropping.
Guess I'll just stick with 3G at all times. I've spent too much time trying to correct this than actually finding enjoyment in using the phone.
Anyway really appreciate the time and effort you took to help with this annoying situation. :good::good::good:
thufz9585 said:
Sorry for the late reply.
I followed your instructions and unfortunately it didn't work. :crying:
I first tried with the D85520f you provided and then with an updated D85521C firmware. But nothing worked.
The temporary fix, which I found works, is to ensure 4G mobile data establishes a connection first before Wifi (turn Wifi OFF then ON after data established). Then there is no signal drop until I go through a tunnel or phone restarts (signal drops completely), which means again i have to ensure 4G mobile data establishes a connection before Wifi or else it'll go back to the constant signal dropping.
Guess I'll just stick with 3G at all times. I've spent too much time trying to correct this than actually finding enjoyment in using the phone.
Anyway really appreciate the time and effort you took to help with this annoying situation. :good::good::good:
Click to expand...
Click to collapse
Modem 21C should be your answer! Please try with that.
Is anyone still out there
engmia said:
Modem 21C should be your answer! Please try with that.
Click to expand...
Click to collapse
I flashed dummies and get dropped 4g data like this.
I have tot back to stock and didn't help... not Kdz
Haven't downgraded yet to LP yet.
On turborom now.
Can I just flash this modem? Have a link to the 21c modem?
Flash in twrp or send via LG flash?
Phone model: Samsung Galaxy A71 SM-A715F/DS
Recently updated to One UI 3.1, Android 11, Google play update March 1 2021
Country: Philippines
As the title says, my phone out of nowhere couldn't detect any 5ghz on wifi. I don't know how long this has been because I don't check what wifi I'm connected to. As long as I was connected, I wasn't worried. But today I discovered it's been connecting to the 2.4 band of my wifi.
We have lots of other devices in the house and all of them detect the 5ghz band. all of them have no connection issues with that. only this phone. I'm not sure if this has something to do with the recent update, but I have a feeling it's because of that.
Things I've already tried:
Restarting the router.
Restarting my phone several times.
Restarting my phone in safe mode. still nada.
Wiping cache partition in recovery mode.
resetting network settings (using the reset option in settings)
disabling vpns/adguards etc.
enabling option in hotspot to prefer 5g bands.
All of them and still nothing. The only thing I haven't tried is doing hard reset or factory reset because I got lots of important stuff and settings already in my phone. I hope it won't get to that point.
Please help, seriously. Thanks very much!
bebotette said:
Phone model: Samsung Galaxy A71 SM-A715F/DS
Recently updated to One UI 3.1, Android 11, Google play update March 1 2021
Country: Philippines
As the title says, my phone out of nowhere couldn't detect any 5ghz on wifi. I don't know how long this has been because I don't check what wifi I'm connected to. As long as I was connected, I wasn't worried. But today I discovered it's been connecting to the 2.4 band of my wifi.
We have lots of other devices in the house and all of them detect the 5ghz band. all of them have no connection issues with that. only this phone. I'm not sure if this has something to do with the recent update, but I have a feeling it's because of that.
Things I've already tried:
Restarting the router.
Restarting my phone several times.
Restarting my phone in safe mode. still nada.
Wiping cache partition in recovery mode.
resetting network settings (using the reset option in settings)
disabling vpns/adguards etc.
enabling option in hotspot to prefer 5g bands.
All of them and still nothing. The only thing I haven't tried is doing hard reset or factory reset because I got lots of important stuff and settings already in my phone. I hope it won't get to that point.
Please help, seriously. Thanks very much!
Click to expand...
Click to collapse
Try to reflash the stock firmware again... Without doing a factory reset.
Hopefully this can help.