This has been bugging me for a while and google doesn't give me anyone with a similar problem.
After the second or third call I make, after a reboot, the cell network just drops. It's as if I was inside a tunnel, no signal.
If I go in Settings -> more... , the last item "Mobile networks" is greyed out and I can't access it.
It's like the chip came out or something and the OS doesn't find it... I don't know.
All I know is that a reboot returns the connection to the GSM network.... but that's inconvenient.
Does anyone know of a reason why this might happen? And how to fix ?
How old is your SIM card?
A friend of mine has the same problem and his SIM card is over 10 years old. I'm telling him to exchange it for a new one at his operator. When he finds time he'll do it. I can report back if it helped.
Sent from my pool filled with printer ink
pocaracas said:
This has been bugging me for a while and google doesn't give me anyone with a similar problem.
After the second or third call I make, after a reboot, the cell network just drops. It's as if I was inside a tunnel, no signal.
If I go in Settings -> more... , the last item "Mobile networks" is greyed out and I can't access it.
It's like the chip came out or something and the OS doesn't find it... I don't know.
All I know is that a reboot returns the connection to the GSM network.... but that's inconvenient.
Does anyone know of a reason why this might happen? And how to fix ?
Click to expand...
Click to collapse
I too experience exactly same problem my model is LG-E455
My friend exchanged his old SIM card for a new one. The problem is still there :/
Sent from my A0001
Have you tried to reinstall firmware with lg update windows app?
kentax said:
Have you tried to reinstall firmware with lg update windows app?
Click to expand...
Click to collapse
Please explain how to do that
Almost a year later.... sorry about being away.
A few months ago, my phone ran into some weird trouble and it did a full system reset...
I took advantage of that to unroot it and let an update install (which was available for a while, but refused to due to having the phone rooted).
Since that update, I don't remember suffering this problem any longer.
So yeah, just perform the official update, if you have one available:
- Settings -> About phone -> Software Update
I'm now on build number JZO54K, Software version E46010p-EUR-XX, kernel 3.4.0 and it just works.
Related
Hi,
I have serious issues with my H7.
Since 1 month or so i can't take any phone calls, or do, i have network issues like "emergency call only" or "no services". I have to resend texts very often, and i have issues going on the internet with 4G or 3G.
I flashed several updates, updated with OTA from B130 to B330 and i have still the issues.
I have no emei issue, and the modem should be replace every time i flash a new update so i guess its not the issue here.
I have mainly this issue while travelling but even going to the toilet make it happen.
I realy need to take phone calls so i realy need help :/
Thanks !
Hi,
the same issue over here: my Honor 7 used to be ok with EMUI 3.1, build PLK-L01C432B180, Android 5.0.2.
After update to EMUI 4.0, build PLK-L01C432B371, Android 6.0 it started to lose connectivity, there were time periods having "emergency calls only" or "no service" displayed. During that time no calls can be received (it still persists).
I do not know the fix for this, but you can try to limit your network mode from "4G/3G/2G auto" down to "3G/2G auto" or "2G only" this way:
Settings, More, Mobile network, Preferred network type
During the time I was trying this, I didn't experience the above issue.
Hope this helps.
Rgds,
H.
regH379 said:
Hi,
the same issue over here: my Honor 7 used to be ok with EMUI 3.1, build PLK-L01C432B180, Android 5.0.2.
After update to EMUI 4.0, build PLK-L01C432B371, Android 6.0 it started to lose connectivity, there were time periods having "emergency calls only" or "no service" displayed. During that time no calls can be received (it still persists).
I do not know the fix for this, but you can try to limit your network mode from "4G/3G/2G auto" down to "3G/2G auto" or "2G only" this way:
Settings, More, Mobile network, Preferred network type
During the time I was trying this, I didn't experience the above issue.
Hope this helps.
Rgds,
H.
Click to expand...
Click to collapse
Did you:
1- backup all your stuff with native Huawei Backup, including screen layout?
2- factory reset
3- gone through setup wizard and check connectivity
4- restore backup
The most common cause after an update is not having a facotry reset (cleans old files). Please post your results.
zinko_pt said:
Did you:
1- backup all your stuff with native Huawei Backup, including screen layout?
2- factory reset
3- gone through setup wizard and check connectivity
4- restore backup
The most common cause after an update is not having a facotry reset (cleans old files). Please post your results.
Click to expand...
Click to collapse
Hi,
many thanks for your questions.
Well, maybe a bad (more time consuming approach) from my side, but no, before update start I only made an offline backup of my contacts, thinking the rest can be set up again, when needed.
After update there were some GPS related issues too, but at the end it has turned out, that it wasn't because of GPS but waze: it wasn't able to find GPS signal whilst maps.me has just woked fine. This has been "fixed" via waze uninstall/reinstall.
To come back to your question, yes, after a while I did a full factory reset hoping that it will solve the (maybe LTE related?) issues, but there was no change at the end.
Kind regards,
H.
regH379 said:
Hi,
many thanks for your questions.
Well, maybe a bad (more time consuming approach) from my side, but no, before update start I only made an offline backup of my contacts, thinking the rest can be set up again, when needed.
After update there were some GPS related issues too, but at the end it has turned out, that it wasn't because of GPS but waze: it wasn't able to find GPS signal whilst maps.me has just woked fine. This has been "fixed" via waze uninstall/reinstall.
To come back to your question, yes, after a while I did a full factory reset hoping that it will solve the (maybe LTE related?) issues, but there was no change at the end.
Kind regards,
H.
Click to expand...
Click to collapse
Did you try to move your SIM card from one slot to the other?
Also did you experienced the same symptoms with other SIM cards? Just to exclude SIM card reader issues...
zinko_pt said:
Did you try to move your SIM card from one slot to the other?
Also did you experienced the same symptoms with other SIM cards? Just to exclude SIM card reader issues...
Click to expand...
Click to collapse
Hi,
nope, no SIM experiments, but network mode still set to "3G/2G auto" and no further issues since that (however without LTE)
Bye,
H.
regH379 said:
Hi,
nope, no SIM experiments, but network mode still set to "3G/2G auto" and no further issues since that (however without LTE)
Bye,
H.
Click to expand...
Click to collapse
I'm in same boat, but I have issues (ajnd have mentioned it several times) with 4G rather than calls. My phone also sits in 3G/2G mode and is fine, but worked perfectly well with Lollipop.
I would try swapping the sim slots, but can't as I need the memory card usage, and I'm not wanting to butcher a sim card to do that hack.
lybad said:
I'm in same boat, but I have issues (ajnd have mentioned it several times) with 4G rather than calls. My phone also sits in 3G/2G mode and is fine, but worked perfectly well with Lollipop.
I would try swapping the sim slots, but can't as I need the memory card usage, and I'm not wanting to butcher a sim card to do that hack.
Click to expand...
Click to collapse
Rule out first any SIM reading issues.
As for the butcher, usually if you say your SIM was lost, they will provide you a new one free of charge. So you can do some experiments.
It´s actually very easy.
About 8-10 months ago.....maybe a little longer, my wife and I purchased two LG K7 (LG-K330) on the Family Mobile plan (T-mobile). I have had zero problems with my phone. My wife on the other hand is having some bizarre problems and she's blaming me for them. Here is a small list of some of the problems:
1. Being blocked from websites that she has been to on several occasions.
2. When going to a website, she will get either redirected or a screen saying 404 Error and one that states she does not have permission.
3. On Facebook, she has lost the ability to access all of her settings. Her "Sharing" configuration has changed and she can't set it back. And she's saying that she doesn't have the same amount of access that she had previously.. She says that sometimes she can't access links in Facebook and when she tries it bounces her right back to where she was.
She has been poking around the phones files and she claims that there are very similar file on my laptop computer. Now she thinks I am trying to limit her access and phone usage. For all I know, she has deleted something that needs to be on the phone. My question is has anyone experienced something like this before and if so, is it repairable? One more note on this matter. This is the fourth phone that this has happened on. The others were Samsung's.
Any help would be greatly appreciated because I can finally prove to her that I'm not smart enough to "hack her phone.
LG K7
Provider: Family Mobile
Model LG-K330
Android ver. 5.1.1
Security Patch Level: 2017-04-01
Build Number: LMY47V
Software ver. K33011g
Phone has never been rooted and has stock firmware. It has been connected to my laptop a couple of times to transfer photo's.
That's a bizarre problem to be having. But have you tried factory resetting it? Back up important files like photos beforehand. This honestly sounds more like a problem with the network than the phone. Have you been using the network? Make sure your DNS is correct and that your network isn't being limited.
Billybobjoe13245 said:
That's a bizarre problem to be having. But have you tried factory resetting it? Back up important files like photos beforehand. This honestly sounds more like a problem with the network than the phone. Have you been using the network? Make sure your DNS is correct and that your network isn't being limited.
Click to expand...
Click to collapse
I swear it's her doing it somehow. It happens to every phone she has used. I have done several factory resets and it hasn't helped. She used our wi-fi connection at home ALL the time. I'll check out the DNS and see if it's being limited. But I would think that I would be having the same problem as I use the network a lot too.
Hey Billybobjoe, I have some additional information that might clarify the problem. She says she cant reach "https" sites, she can only see part of her Facebook page, the permissions are growing and sharing is a lot worse. She says she can't really get to a "real" website(it says something about "there is no cache for the page". She also states that she can no longer change her privacy settings on Facebook and that she thinks her phone is heavily connected to Russian social media websites.
Does this help in any way? Thanks in advance for all your help in this matter.
Billybobjoe13245 said:
That's a bizarre problem to be having. But have you tried factory resetting it? Back up important files like photos beforehand. This honestly sounds more like a problem with the network than the phone. Have you been using the network? Make sure your DNS is correct and that your network isn't being limited.
Click to expand...
Click to collapse
Hello.
I recently purchased an unlocked AT&T model V10 and am using it on Metro PCS.
The phone is having a hard time making and receiving calls. It will take a long time for an outbound call to begin (or will not even go through after a lengthy wait), and many calls are not being received and going straight to voicemail.
The problem and severity is intermittent, sometimes it will work without issue and other times no calls can be made or received for some time.
The data connection appears to be solid whenever it is being used, it just appears there is a problem with the phone trying to negotiate from a data connection to a GSM cellular connection.
Any input would be greatly appreciated as I have been searching around and have not had any luck. I've tried reseating the SIM, factory resets, etc.
Thank you.
MAybe wrong rom on it? Did you try reinstall software with lg bridge?
klemen241 said:
MAybe wrong rom on it? Did you try reinstall software with lg bridge?
Click to expand...
Click to collapse
I'm running the factory AT&T install, so no custom rom - I will try LG Bridge and see if there are any available updates.
Thanks for the tip, I haven't done much with LG phones before - I am certainly open to rooting the phone / trying a custom ROM to see if that will sort things out. It just seems like either a setting (I tried all different APN settings to no avail) or a software issue as it does work, just not consistently.
en5 said:
I'm running the factory AT&T install, so no custom rom - I will try LG Bridge and see if there are any available updates.
Thanks for the tip, I haven't done much with LG phones before - I am certainly open to rooting the phone / trying a custom ROM to see if that will sort things out. It just seems like either a setting (I tried all different APN settings to no avail) or a software issue as it does work, just not consistently.
Click to expand...
Click to collapse
there are custom roms for h901, other than that no custom roms
klemen241 said:
there are custom roms for h901, other than that no custom roms
Click to expand...
Click to collapse
Thanks, I noticed that I was having trouble finding an update past H90021w online and the phone shows no update available (I was previously on H90020j).
So now Wi-Fi calling is an option, however it does not let me enable it, it just sits on "Processing" until eventually it gives me an error connecting with the network. I turned it on manually through the SVC menu and it shows it as enabled in the settings, but I don't think it is actually working as it doesn't give any indication as to whether or not it s on a Wi-Fi call.
Looks like I'm running out of options and may need to go with a different phone.
en5 said:
Thanks, I noticed that I was having trouble finding an update past H90021w online and the phone shows no update available (I was previously on H90020j).
So now Wi-Fi calling is an option, however it does not let me enable it, it just sits on "Processing" until eventually it gives me an error connecting with the network. I turned it on manually through the SVC menu and it shows it as enabled in the settings, but I don't think it is actually working as it doesn't give any indication as to whether or not it s on a Wi-Fi call.
Looks like I'm running out of options and may need to go with a different phone.
Click to expand...
Click to collapse
yea you had bad luck with this one, v10 is great phone, but no custom or anything. I am luchy i have 960a, so everything works haha
I tried to changed APN manually to rogers but still data does not work, only call and text works. Is there a solution to this? I believe i got Pro 2 (cn with global rom installed)
I had the same issue, below is the APN setting on Rogers website, I've found that if you make the following changes, it will connect to 4G data (until you restart your device)APN Type: replace "internet + mms" with "*"
MVNO: ROGERS
MVNO type: SPN
This will get you connected.
However, I ran into another problem after configuring the network this way. After restarting the device, the phone can no longer detect the SIM card, and has an error message prompting restart).
This is my problem after restarting:
Comparing with other phones, the auto detected APN Type is typically "default", but entering default will cause the connection issue right away. The "*" will allow you to run until device reboot.
I too would like help on how to resolve this. Seems more software than hardware problem since it only fails after boot.
Mobile APN Settings
Parameter NameParameter ValueAPNltemobile.apnMMSC
http://mms.gprs.rogers.com
MMS Proxymmsproxy.rogers.comMMS Port80APN Typeinternet + mmsAPN ProtocolIPv4/IPv6APN Roaming ProtocolIPv4/IPv6All other settingsBlank/default value
@GSKC
I just tried your method looks like it works and as you said it doesn't work after reboot. However when I did "Network setting reset," I was able to connect to 4g again (but resets wifi passwords too). Hopefully there's a solution...
I noticed that this problem only happens if there is a SAVED wifi network WHEN the device BOOT up.
I did a factory reset, then enter the APN manually. I was able to connect to stable network.
I did a system restart, no issue. The phone reconnects to the network automatically after booting.
I connect to a wifi network. The phone still works fine.
I restart the device again, the problem comes back.
If I take out the SIM and only use the Wifi, the phone is also okay.
The only time when it doesn't work is when I have both, which is the normal use case.
Something is happening in the firmware between the wifi and the SIM during the boot sequence.
This problem exists on my Lenovo L70081, Legion Phone Duel 2 Pro, running OS 12.5.188 ST, updated using Rescue and Smart Assistant v5.8.0.25
Any help would be appreciated.
GKSC said:
I noticed that this problem only happens if there is a SAVED wifi network WHEN the device BOOT up.
I did a factory reset, then enter the APN manually. I was able to connect to stable network.
I did a system restart, no issue. The phone reconnects to the network automatically after booting.
I connect to a wifi network. The phone still works fine.
I restart the device again, the problem comes back.
If I take out the SIM and only use the Wifi, the phone is also okay.
The only time when it doesn't work is when I have both, which is the normal use case.
Something is happening in the firmware between the wifi and the SIM during the boot sequence.
This problem exists on my Lenovo L70081, Legion Phone Duel 2 Pro, running OS 12.5.188 ST, updated using Rescue and Smart Assistant v5.8.0.25
Any help would be appreciated.
Click to expand...
Click to collapse
Im on the same OS version 12.5.188ST, my phone connected to data absolutely fine with no problems but after every few hours stop making or receiving calls. I did the following and its fine for some time now but I'm not sure whether this will work with every phone but no harm in trying :
settings.....cellular network and sim.....5G mode. By default (at least in my phone) it is on NSA, I first switched to NSA+SA but to no avail, than I switched to SA and vola problem solved, all incoming outgoing calls working bang on but I think now my phone doesn't go on 5g which is still not good but at least making calls as normal. Now, as I said, this procedure might not work for everyone but try it, cheers.
vtec303 said:
Im on the same OS version 12.5.188ST, my phone connected to data absolutely fine with no problems but after every few hours stop making or receiving calls. I did the following and its fine for some time now but I'm not sure whether this will work with every phone but no harm in trying :
settings.....cellular network and sim.....5G mode. By default (at least in my phone) it is on NSA, I first switched to NSA+SA but to no avail, than I switched to SA and vola problem solved, all incoming outgoing calls working bang on but I think now my phone doesn't go on 5g which is still not good but at least making calls as normal. Now, as I said, this procedure might not work for everyone but try it, cheers.
Click to expand...
Click to collapse
Thanks for the suggestion, unfortunately setting the 5G setting didn’t help. I also tried disabling 5G but I still have the issue.
Was your OS able to read the APN from your SIM or did you have to enter the APN manually also?
GKSC said:
Thanks for the suggestion, unfortunately setting the 5G setting didn’t help. I also tried disabling 5G but I still have the issue.
Was your OS able to read the APN from your SIM or did you have to enter the APN manually also?
Click to expand...
Click to collapse
I didn't mess about with apn, as I said in my earlier post I had no problems using data its always connected but I had problems with making and receiving calls, cheers
There's currently two ROM available on Rescue and Smart Assistant:
L70081_ROW_SECURE_USER_Q00017.0_R_ROW_12.5.188_ST_210819_qpst
L70081_EE_SECURE_USER_Q00017.0_R_ROW_12.5.137_ST_210710_sec_qpst
What's the difference between ROW and EE rom?
Which would work best in Canada and US?
is ROW only updated in Asia and Pacific?
i sort of had this same problem with Tmobile. it would only connect to 3g . if i connected to the 4g or 5g network i lost everything . i was able to fix it using my ROOTED phone and an app in the playstore called network guru. I used that to turn off majority of the network bands and only left the ones listed for the phone. My service was immediately fixed and havent had any trouble since
tinman4209333 said:
i sort of had this same problem with Tmobile. it would only connect to 3g . if i connected to the 4g or 5g network i lost everything . i was able to fix it using my ROOTED phone and an app in the playstore called network guru. I used that to turn off majority of the network bands and only left the ones listed for the phone. My service was immediately fixed and havent had any trouble since
Click to expand...
Click to collapse
Can you go into more detail and steps? I actually switched from tmobile to att after I couldn't get it work. I would rather be on tmobile.
superrama said:
Can you go into more detail and steps? I actually switched from tmobile to att after I couldn't get it work. I would rather be on tmobile.
Click to expand...
Click to collapse
I know how ya feel, I pestered TMobile for 2 weeks and they were no help. They kept trying to push me off to Lenovo who was absolutely no help at all. Id go thru their website which connects you to Motorola. Then they would tell me they don't support the phone because it's Lenovo and give me a link to follow. Id follow that link which led me right back to Motorola lmfao.
After 4-5 times of going thru that nonsense I finally got someone who knew what they were doing. They told me because this phone was never released in the US I need to go thru their European server for assistance. Screw that, I did some more research and got the idea of trying this from some ancient post I found on xda lol.
It's actually very easy as long as your phone is rooted. download the app, click the 3 dots and go into force control. Then adjust the carrier bands so only the ones supported by the phone are selected. Then reboot your phone and it should kick over to a working signal . If not ya might have to monkey around in the service menu using the dial code *#*#4636#*#*
Here's a few screenshots to give ya an idea and a link to a website with all the bands listed. https://www.kimovil.com/en/frequency-checker/US/lenovo-legion-2-pro
tinman4209333 said:
I know how ya feel, I pestered TMobile for 2 weeks and they were no help. They kept trying to push me off to Lenovo who was absolutely no help at all. Id go thru their website which connects you to Motorola. Then they would tell me they don't support the phone because it's Lenovo and give me a link to follow. Id follow that link which led me right back to Motorola lmfao.
After 4-5 times of going thru that nonsense I finally got someone who knew what they were doing. They told me because this phone was never released in the US I need to go thru their European server for assistance. Screw that, I did some more research and got the idea of trying this from some ancient post I found on xda lol.
It's actually very easy as long as your phone is rooted. download the app, click the 3 dots and go into force control. Then adjust the carrier bands so only the ones supported by the phone are selected. Then reboot your phone and it should kick over to a working signal . If not ya might have to monkey around in the service menu using the dial code *#*#4636#*#*
Here's a few screenshots to give ya an idea and a link to a website with all the bands listed. https://www.kimovil.com/en/frequency-checker/US/lenovo-legion-2-pro
Click to expand...
Click to collapse
How do you root the phone?
GKSC said:
How do you root the phone?
Click to expand...
Click to collapse
Tutorial: How to Update, Unlock bootloader and Root your CN with Global Rom phone
I received my phone today from Aliexpress and was able to update, unlock bootloader and root my phone so I want to share the steps. Follow them at your own risk, I take no responsibility for any issues or bricking. You should always backup your...
forum.xda-developers.com
When I first got my phone a cpl years ago, I had really good cell service. There were "dead" zones that other phones had issues with, but I was able to keep talking while going through those zones. I could also use data in those areas.
I don't remember exactly when, but when Cricket/ATT sent an OS update several months back, I no longer get that good of service. The dead zone is actually now much larger than it had been. I also can no longer use my phone inside the house, or even send/receive txt messages without having to set the phone near the outside wall, or step outside.
Is there any way possible to downgrade? Or maybe root and change some setting somewhere? I've already tried doing a factory reset, and that did nothing. Reset APN's to defaults, nada. Even did a Wifi/BT/Network reset to defaults, no go.
Moto G Power (2021) XT2117-1
Android 11
Kernel 4.19.157-perf+
Build number RZBS31.Q2-143-27-9
Baseband version HA10_29.11.02.95.01R BORNEO_NA_CUST
KorishanTalshin said:
When I first got my phone a cpl years ago, I had really good cell service. There were "dead" zones that other phones had issues with, but I was able to keep talking while going through those zones. I could also use data in those areas.
I don't remember exactly when, but when Cricket/ATT sent an OS update several months back, I no longer get that good of service. The dead zone is actually now much larger than it had been. I also can no longer use my phone inside the house, or even send/receive txt messages without having to set the phone near the outside wall, or step outside.
Is there any way possible to downgrade? Or maybe root and change some setting somewhere? I've already tried doing a factory reset, and that did nothing. Reset APN's to defaults, nada. Even did a Wifi/BT/Network reset to defaults, no go.
Moto G Power (2021) XT2117-1
Android 11
Kernel 4.19.157-perf+
Build number RZBS31.Q2-143-27-9
Baseband version HA10_29.11.02.95.01R BORNEO_NA_CUST
Click to expand...
Click to collapse
Before trying other solutions (e.g., downgrading to Android 10), you may want to consider contacting your service provider to see if there is an updated sim card available for Android 11. If your phone is similar to mine, there is no longer the + sign to add new apn's in your network settings. The apn is hard coded on the sim card with no option now to change it in network settings, which would have perhaps been the simplest solution. The other option is to see if there is an update for the apn that your service provider can push through for installation.
sdembiske said:
Before trying other solutions (e.g., downgrading to Android 10), you may want to consider contacting your service provider to see if there is an updated sim card available for Android 11. If your phone is similar to mine, there is no longer the + sign to add new apn's in your network settings. The apn is hard coded on the sim card with no option now to change it in network settings, which would have perhaps been the simplest solution. The other option is to see if there is an update for the apn that your service provider can push through for installation.
Click to expand...
Click to collapse
Ahhh, ok. Good point! Thanks. I'll contact Cricket and see if they may have one. I hadn't even thought of possibly needing an upgraded SIM card.
And yes, you are correct, the APN is all greyed out and the + is missing. I can't even access it from 3rd party options.
KorishanTalshin said:
Ahhh, ok. Good point! Thanks. I'll contact Cricket and see if they may have one. I hadn't even thought of possibly needing an upgraded SIM card.
And yes, you are correct, the APN is all greyed out and the + is missing. I can't even access it from 3rd party options.
Click to expand...
Click to collapse
While I appreciate your 'Thanks', please learn to use the 'Like' button when logged in (previously known as the 'Thanks' button). It's a longstanding XDA courtesy when members try to help or provide roms/guides etc,. for members use.