Modem Crashing upon Wifi no signal - X 2014 Q&A, Help & Troubleshooting

Hello, any assistance would be great here! I'd like to avoid doing a full complete reinstall but, if its necessary and if thats what it comes down to, so be it. Here's whats happening. It seems every time i switch my WiFi off or it loses WiFi signal, the radio completely crashes and won't connect to mobile network anymore. I have to do a reboot and upon reboot all works fine. Very frustrating! I've tried reinstalling the modem and trying different modems to no avail. I'm at a loss as its rather frustrating a waste of battery having to reboot the phone. If i never use WiFi and let it stay on mobile network all the time, i never have the issue. Or if i stay in WiFi all the time, no issue. Anyone else ever have this issue?

I assume you've cleared the modem cache files - modemst1 and modemst2?

Steve-x said:
I assume you've cleared the modem cache files - modemst1 and modemst2?
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Click to collapse
Yeah I erased the modem files completely last time I reinstalled the modem. Although upon doing that it didn't start happening until about 16 hours later.

You should be able to reflash the system image without losing anything to see if that fixes it. If it doesn't and you've cleared any other cache files I think you better perform a full factory flash/reset. Hopefully it is software and not some sort of hardware fault.

Steve-x said:
You should be able to reflash the system image without losing anything to see if that fixes it. If it doesn't and you've cleared any other cache files I think you better perform a full factory flash/reset. Hopefully it is software and not some sort of hardware fault.
Click to expand...
Click to collapse
Good point. I'll flash just system. That definitely won't affect any data! Don't think it's hardware. Phone hasn't taken any drops yet.

So I found out the issue. Turns out force stopping the phone app was the issue. I guess the phone doesn't like that. I have a persistent voicemail icon that won't go away and so I would force stop the phone app which removed it. For some reason disabling the dialer doesn't get rid of it. I don't use the dialer hence why doing that. I use all IP based phone system for voice calls and texts and subscribe to a tablet data only style plan so I tried to disable as much as possible of the built in voice stuff. Turns out you can't force stop the phone app without causing issues with the modem unfortunately. Guess I'll be living with this damn voicemail notification!

Related

Whatsapp connection issues

Hi, I wonder if anybody can help me. Up until the day before yesterday I was using whatsapp fine over wifi (where I am at the moment there is no mobile signal) on my O2 UK Z1 and then whatsapp lost all connection. Everything else on the phone was working fine but no whatsapp. Every message I sent would go to the clock, no information when people were last online and the faq etc. in the settings would not load because of lack of connection.
I uninstalled the app and then installed it again and all was fine, after sending a few messages the same error occurred again. I have now found that if I clear data in the app settings it will connect again, once I have reconfigured the app and restored from backup. I can only assume that there is some sort of buffer which I am clearing as I lose a few messages when I clear data (all since last backup).
Barring doing a delete of all backups and messages does anyone have any other idea. I have looked and the backup files are about 1.7mb so not massive and I have a fair bit of storage available onboard (>7gb).
I was talking to someone with a HTC phone who had suffered similar symptoms but I have googled and searched and can't find a solution.
Any help much appreciated.
Mark
2 weeks off work and no issues, as soon as I have returned the issue has reared it's head so looks like it's something to do with the wifi here. Everything else works fine and fast so I guess I'll just have to live with it
daxdax89 said:
Try to factory reset or reinstall mobile data settings
Click to expand...
Click to collapse
A factory reset for a cheap Whazz, huge work buddy...lol... at last it's an idea but I will try reinstall mobile settings before that or uninstall and reinstall Whatsup.
I work in a very remote location, I have wifi (which is distributed from a satellite feed) out here and for my mobile phone that is the only connection option. When I am away from work whatsapp always works, both over wifi and cellular data. At work I keep my phone in aeroplane mode with wifi turned on to try and preserve some battery (there is no point in my phone constantly looking for a non existent cellular signal).
This morning I deleted all messages in whatsapp, uninstalled the app and re-installed/configured. Usually I get a failure within 24 hours of doing this so we'll see whether this rectifies the issue.
I know I'm not the only person out here that has had the issue so it is either a coincidence or something with the way the wifi is configured here. I just assumed that the wifi would either work or not but, I am not an expert.

Can't see wifi networks?

Hey guys,
I just noticed this issue about a month or 2 ago and was wondering if anyone could help me. For some reason my gsm DE moto x stopped showing available wireless networks. Its weird because it can see and connect to the wifi networks that are already saved ( my house, work, etc) but it won't show any other networks that are available in the area. I didn't notice until I was trying to connect to a new network (like at the airport) and couldnt see anything, when I knew there were a bunch of networks available.
I've tried rebooting, switching between 2.5ghz/5ghz/auto, clearing dalvik and cache and i still have the same issue. I thought maybe module may have been causing it but even disabling xposed didn't fix it. Sometimes I get a notification of open wifi networks available, when I tap it it takes me to the list where I can only see the pre-saved ones. I can't recall if there was something I might have done that could've caused this. But since disabling xposed didn't fix it, I dont know what else it could be. Maybe something i froze? The only things i have frozen are google apps i don't use and some moto stuff. I haven't deleted any system stuff.
I also tried clearing data for some qualcam wfg or something like that, and just reflashed boot and system images, but the issue persists. Actually i think factory reset fixed it, and then when i restored my backup it came back. Only thing left is to re-flash the data partition but I don't want to re-install and configure everything ( although i might as a last resort).
Any ideas?
One more thing I tried was to delete and put in the files in the /persist directory that have to do with wifi from another thread, in case those got messed up somehow. But that didn't help either and now I'm out of ideas..
vikramkhalsa said:
Hey guys,
I just noticed this issue about a month or 2 ago and was wondering if anyone could help me. For some reason my gsm DE moto x stopped showing available wireless networks. Its weird because it can see and connect to the wifi networks that are already saved ( my house, work, etc) but it won't show any other networks that are available in the area. I didn't notice until I was trying to connect to a new network (like at the airport) and couldnt see anything, when I knew there were a bunch of networks available.
I've tried rebooting, switching between 2.5ghz/5ghz/auto, clearing dalvik and cache and i still have the same issue. I thought maybe module may have been causing it but even disabling xposed didn't fix it. Sometimes I get a notification of open wifi networks available, when I tap it it takes me to the list where I can only see the pre-saved ones. I can't recall if there was something I might have done that could've caused this. But since disabling xposed didn't fix it, I dont know what else it could be. Maybe something i froze? The only things i have frozen are google apps i don't use and some moto stuff. I haven't deleted any system stuff.
I also tried clearing data for some qualcam wfg or something like that, and just reflashed boot and system images, but the issue persists. Actually i think factory reset fixed it, and then when i restored my backup it came back. Only thing left is to re-flash the data partition but I don't want to re-install and configure everything ( although i might as a last resort).
Any ideas?
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?p=52895610#post52895610
That is if your persist is corrupted at all.
As to permissions, write down what you have now for folders and files. Then post what files/folders are missing if any. I no longer have an X. Others may help you.

replaced digitizer: no mobile network

towelroot:safestrap:stock rooted 4.4.2:minor wanam xposed tweaks
I replaced the digitizer on my wife's note3. BUT... it appears that mobile network is not connecting.
Here are the symptoms:
BIG ONE: time and date will not auto update.
phone calls work fine.
wifi works: Browser can connect to internet and I finally got a bad cert warning. Apps like facebook and ebay will not work (I assumed cuz of certificate issues).
I wiped cache and dalvik.
I am trying to avoid wiping data and having her start fresh... (ie me make the phone like it was before
factory reset fixes issue. But I'm still trying to find a way to avoid having to start from 0.
Have you checked your APN settings? I would do some googling and find some good APN settings, then add a new one and switch to that, see if it makes a difference. Beyond that you might try uninstalling Xposed for now and seeing if that helps. Is the ROM installed in the stock slot, or a Safestrap slot? I've heard of non-stock slot installation causing some problems.
Just throwing some ideas out here, hope you can get it figured out.

Losing Internet (DNS error) after latest QJB update

HI, I've been having Internet/DNS issues ever since the QJB update. The phone will show LTE signal but there is no data flowing and voice calls don't work (no dial tone). Webpages on the phone and connected hotspot PCs will show a DNS error. Toggling data doesn't help. Only restarting the phone will make data work again.
Multiple attempts at factory resetting, provisional resetting, updating profile/prl and flashing the QJB update in ODIN didn't help.
UPDATE: Issue seems to be related to the update. Downgrading firmware is not possible as far as I know (Odin throws an error message). I had to send the phone back to Samsung for repair (took a week), and all they did was send it back with the old software QI5. Now I'm afraid to update the software.
UPDATE2: Voice also does not work. No dial tone.
mrnamster said:
HI, I've been having Internet/DNS issues ever since the QJB update. The phone will show LTE signal but there is no data flowing. Webpages on the phone and connected hotspot PCs will show a DNS error. Toggling data doesn't help. Only restarting the phone will make data work again.
I thought it was related to the hotspot but it still happened when I was restoring apps right after a factory reset. Multiple attempts at factory resetting, updating profile/prl and flashing the QJB update in ODIN didn't help. I'm afraid getting a replacement phone won't help either.
I am beginning to think it's an app related issue but am not sure. I just did a full wipe and am slowly reinstalling my apps to test and do a process of elimination.
Ever since the update the only other issue I had was with the Samsung Gear app crashing the phone when it connected to my Gear S3 and wants to turn on WiFi while I am using the hotspot (it would make the phone unusable unless I agreed to turn off hotspot to turn on WiFi). for some reason the S3 wants to turn on WiFi even though I disabled all WiFi settings in the Gear app.
Are apps able to cause Internet/DNS problems? Has anybody had this issue? TIA
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Click to collapse
Profile update? PRL update?
Yes tried those
Experiencing the same issues after Sprint rolled out OTA update 'N950USQU2BQJB' along with slower speeds and lag in apps like YouTube and Hulu.
The most glaring difference for me has been terrible battery life since the update.
Have you noticed anything different with your battery life and on screen time that is out of the usual?
Funny you guys say that. Mine does the same after that update too. If I toggle it to air mode. When I turn it back off it will not establish any network. Will have the x and stuck searching for service. It's about every other day. Mine will show LTE and act like all is good. But no data. Done the profile prl updates. That never fixed the issue either.
Software version
N950USQU2BQJB
I am also having issues after this update. Data stalls and transactions constantly have to be refreshed to get something to load. Does anyone know how to use Odin to roll back to another update before this one?
---------- Post added at 11:43 PM ---------- Previous post was at 11:07 PM ----------
I may have gotten somewhere by using DNS Manager to utilize openDNS.... Trying it now and waiting for longer use results but so far so good
https://play.google.com/store/apps/details?id=com.okirat.dnsmanager
Is there a way to ODIN back to an earlier update that won't break KNOX?
Ah, so it is related to the update. I thought I was the only one and that my phone was defective.
I tried rolling back in Odin but it gives an error. It's been stated that you can't downgrade the firmware after taking the update.
I sent it back to Samsung for repair and they sent me back a phone with the old software version N950USQU1AQI5. Way to go Samsung for not fixing the problem but covering it up. It was a hassle being without a phone for a week.
Now I know not to take the update. WiFi calling plus was nice but what's the point if your data doesn't work half the time?

Question S21 Ultra (US AT&T) Recurring Odd Connectivity Issues

Not even sure where to start or how to properly articulate my problem, but here goes...
My S21 Ultra (AT&T) is most often connected to my home network which is Verizon FiOS with Verizon Extenders in SON (self-organizing network) configuration. Wi-Fi Calling is enabled as is Bluetooth and mobile data. Link to Windows is enabled and I use the Microsoft Your Phone app on my Win10 laptop regularly.
On a daily basis, I will encounter ant/all of the following problems:
1) SMS Text and/or MMS messages may not send. Says "Sending..." and then times out with Message Not Sent error.
2) Leave house, get in car, fire up Waze, get "Searching network..." error
3) Leave house, attempt to use mobile data for browser or apps, and get connection error of one type or another
In almost all cases, I can resolve the problem by enabling and then disabling Airplane Mode. This has worked consistently to fix the Waze issue and generally resolves the other issues when they occur.
Very frustrating and NEVER happened with my previous S10+ which I upgraded from.
Thoughts on what I should be looking for? Don't want to randomly do things like factory reset, hoping someone may have found a specific solution.
Thanks!
For starters...
Clear system cache
Reset network settings
Sim card tool kit, clear data
If you updated to a new Android OS version, a factory reset is recommended.
Otherwise unless infected or an old load, a factory reset is counter productive.
Find the root cause or it's likely to happen again after a factory reset
Get advance tech support from AT&T, sometimes they really know what they're doing.
Samsung tech support is worthless.
Cleared system cache & reset network settings (sadly losing all saved BT device connections and WiFi info) but still have issues. Phone came with current OS. Was hoping to not have to call AT&T given how nebulous my problems are.
dlipetz said:
Cleared system cache & reset network settings (sadly losing all saved BT device connections and WiFi info) but still have issues. Phone came with current OS. Was hoping to not have to call AT&T given how nebulous my problems are.
Click to expand...
Click to collapse
Sim card tool kit, clear data
blackhawk said:
Sim card tool kit, clear data
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Click to collapse
Not sure what that means, where to find it, or what the impact is... Can you please add some color?
have you contacted the carrier? swap the SIM maybe?
you can also submit an error report via samsung members app
dlipetz said:
Not sure what that means, where to find it, or what the impact is... Can you please add some color?
Click to expand...
Click to collapse
Settings>apps
No impact, the data refreshes its self.
blackhawk said:
Settings>apps
No impact, the data refreshes its self.
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Click to collapse
Thanks. Did the clear data on the SIM toolkit.
Should Mobile Network State (in SIM card status) say Disconnected?
dlipetz said:
Thanks. Did the clear data on the SIM toolkit.
Should Mobile Network State (in SIM card status) say Disconnected?
Click to expand...
Click to collapse
Never mind... Disconnected when WiFi on, Connected when WiFi off. Doy.
dlipetz said:
Never mind... Disconnected when WiFi on, Connected when WiFi off. Doy.
Click to expand...
Click to collapse
If you play with Androids long enough you'll bump into the solution eventaully.
blackhawk said:
If you play with Androids long enough you'll bump into the solution eventaully.
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Click to collapse
I sure hope so. I've been on Android since the Droid Incredible days but never have experienced this sort of behavior and it is maddening.
i have your same texting issue sporadically. seems to always happen when i am at work, sometimes turning airplane mode off and on real quick fixes it, other times i have to to do it several times....and like you i have had quite a few sammys not to mention lots of other brands and never had this problem....
chorales said:
i have your same texting issue sporadically. seems to always happen when i am at work, sometimes turning airplane mode off and on real quick fixes it, other times i have to to do it several times....and like you i have had quite a few sammys not to mention lots of other brands and never had this problem....
Click to expand...
Click to collapse
Make sure power management is not active. It will cause all kinds of annoying and erratic behaviors.
Developer options>Standby apps, all buckets should show as active if not power management is enabled. You can't fix it here, go to Device Care and untoggle it. The only thing that should be toggled on is fast charging.
Power mode should be set to Optimized or higher.
Make sure the related apks and their dependencies are set to allow background data and battery use.
Generally Android manages its self quit well without this junk. They're just more bad ideas from Gookill that will screw up your device
chorales said:
i have your same texting issue sporadically. seems to always happen when i am at work, sometimes turning airplane mode off and on real quick fixes it, other times i have to to do it several times....and like you i have had quite a few sammys not to mention lots of other brands and never had this problem....
Click to expand...
Click to collapse
Who is your carrier? I'm on AT&T and had WiFI Calling enabled. For the time being, I have disabled it to see if problems go away.
dlipetz said:
Who is your carrier? I'm on AT&T and had WiFI Calling enabled. For the time being, I have disabled it to see if problems go away.
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Click to collapse
If you have an unlimited plan just keep it on mobile. It's more secure anyway.
I keep wifi disabled always. That's an easy way to block Playstore auto updates
blackhawk said:
Make sure power management is not active. It will cause all kinds of annoying and erratic behaviors.
Developer options>Standby apps, all buckets should show as active if not power management is enabled. You can't fix it here, go to Device Care and untoggle it. The only thing that should be toggled on is fast charging.
Power mode should be set to Optimized or higher.
Make sure the related apks and their dependencies are set to allow background data and battery use.
Generally Android manages its self quit well without this junk. They're just more bad ideas from Gookill that will screw up your device
Click to expand...
Click to collapse
Also, are you using Google One VPN by chance?
blackhawk said:
If you have an unlimited plan just keep it on mobile. It's more secure anyway.
I keep wifi disabled always. That's an easy way to block Playstore auto updates
Click to expand...
Click to collapse
Not a solution. I need the WiFi speeds and use in areas with poor connectivity.
dlipetz said:
Also, are you using Google One VPN by chance?
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Click to collapse
I stay away from Gookill as much as possible.
Karma Firewall is a freeware VNP firewall that uses almost no battery... I use that.
dlipetz said:
Who is your carrier? I'm on AT&T and had WiFI Calling enabled. For the time being, I have disabled it to see if problems go away.
Click to expand...
Click to collapse
my carrier is AT&T also....when i have had this issue i have turned wifi off and tried and it doesn't make any difference. will look into the battery settings that have been mentioned.
chorales said:
my carrier is AT&T also....when i have had this issue i have turned wifi off and tried and it doesn't make any difference. will look into the battery settings that have been mentioned.
Click to expand...
Click to collapse
Disable all power management including adaptive battery etc.
Then clear the sim card tool kit data, then a network reset and finally clear the system cache on the boot menu.
Consider disabling all the AT&T bloatware except for maybe messages (which works well), none of it is needed.
Disable carrier, Google and Samsung feedback.
Disable all cloud crap unless you use it, Google Backup Transport/Framework are prime offenders.
Disable Google Firebase.

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