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[Q] mobile network disconnects and gets stuck "turning on"

Hello all, i have had my HTC sensation 4G (on Bell) for just over a month and a few days ago i started losing my connection to the network intermittently. Super annoying. Anyways i tried deleting some recent apps, figured that might be the issue but nope didnt help. It happened about 3 days in a row until i finally did a Factory Reset on the phone. It worked fine for a bit and then began stopping its connection to the network. Anyways super frustrating, i read some forums about tunring ciphering on and off, i tried that didnt work... needless to say im chapped.
Sorry for the length, but basically wondering if anyone knows how to fix this as its to late to return the phone and i have read through similiar forums on other phones

sorry to hear abt ur problem. i experienced the same thing but i think mine was triggered when i installed juice defender. it would turn off mobile data when the screen was off and when i went to use the phone, i didn't have a connection. i uninstalled the app and did a power cycle and that seemed to fix the problem after i went back into settings and checked the box to turn mobile data on.

charronegro1971 said:
sorry to hear abt ur problem. i experienced the same thing but i think mine was triggered when i installed juice defender. it would turn off mobile data when the screen was off and when i went to use the phone, i didn't have a connection. i uninstalled the app and did a power cycle and that seemed to fix the problem after i went back into settings and checked the box to turn mobile data on.
Click to expand...
Click to collapse
This. The phone seems to have trouble (on the stock kernel at least) when switching data from wifi only to cell when cell is turned off. This happens to me when I use wifi calling. The solution I came up with was to connect to a wifi network then turn on mobile data in the quick settings manually. Works every time for me.
HTC really needs to fix this.

Under mobile network in wireless settings, enable always-on mobile data.
This somehow fix my connection whereby it hampers with JD app by not turning on when it needs to.

Thanks for the help guys. I did also recently install a "battery optimizer: in Droid Utilities or soemthing like that, although i did a factory reset. ill try and do a full battery cycle like you mentioned and see if that helps

so the phone worked fine on the weekend, and even friday and i thought it was cause i stopped using a non "htc" charger and got rid of Android Utilities. but now its Tuesday again and like clockwork at 1pm it just stops connecting, if i reset it i get network for a few minutes and then boom out again. Very frustrating mid work day to be without my phone for hours on end. Dont know what to do.

Are you using WiFi at the time it goes out?
Sent from my HTC Sensation 4G using XDA App

No i havent been, not allowed to use private phones on the corporate wireless, but so far i havent found a problem with it switching between wi-fi and H+ while at home.
I have a feeling that Bell Canada may be updating the network or something in the area but they havent said anything both times i called and i asked. so who knows. Its just to much like clockwork for me to think it would be the phone, but who knows.

So i believe i have this figured. I talked to tech support once again yesterday and i point blank asked if it was network problems he said no (3rd person from bell to tell me this) then reccomended i get a sim card change if that didnt work he said send the phone in for repair.
So i went to the downtown bell store talked to the girl, explained why i needed to replace a brand new sim, and she told me that it was because Bell doesnt have towers downtown they share the Telus towers, however because of network bottleneck bell users get less priority and thus i cant use my phone... Not only is this unnacceptable for a phone company to not provide service DOWNTOWN in a major city but having denied it multiple times forcing me to troubleshoot for hours and spend almost an hour talking to bell representatives...
NOT HAPPY. Bell - 5 in my books, lucky my contract is up in a few months and i can switch to telus where i will be able to get signal downtown...

Optimus 3D 3G troubles

Hello everyone,
I hope someone can help me because I am going crazy with my Optimus 3D My device constantly loses the 3G connection and so I don't get any notifications about new e-mails and Whatsapp messages. The icons for network strength turn white and even sometimes that happens with the wi-fi icon. I already tried rooting the device and installed a custom rom but I still have this problem. The problem mostly occurs in the office I work in as 3g and network reception is very low here. I see that the device switches between HSDPA, GPRS and 3G quite often and then most of the time loses the internet connection. It also does not reconnect when I walk around and get to an area with better reception. Sometimes switching to Airplane Mode and back helps, but this is not a very handy solution. I am really clueless where the problem could be. I am here in Frankfurt/German so normally there should be no problems with the network (I am on Vodafone). The only thing I could think of is my SIM card, because I had an iPhone 4 before and had to cut the card to the micro SIM size and now use it with an adapter. Could this be a problem? Also the app 3G reconnect did not solve this problem.
Has anybody a clue what might be wrong with my device? I am already thinking about getting a new phone
Cheers,
Andreas

Does it do that when goes to sleep?
Sent from my LG-P925 using xda app-developers app

lazylu said:
Does it do that when goes to sleep?
Sent from my LG-P925 using xda app-developers app
Click to expand...
Click to collapse
I don't know when it loses the connection, could probably happen when it turns the screen off or switches between network speeds (3G, GPRS, HSDPA). It really is a problem for me that it does not get the connection automatically back. Currently it shows almost full network reception, the "G" icon with both arrows underneath (only the left arrow pointing up turns green from time to time), but it has no internet connection. I sent me a mail to my google account via my office PC haöf an hour ago, but still no message on the phone, that there is new mail

Just try a new simcard... my guess is that it will solve your problem.. could be worth the couple euros ..
Sent from my LG-P920 using xda app-developers app

I had similar Problems with O2 in Bremen.
That happens if the phone loses the 3g(h+) signal, turning of the data connection, and let that reconnect is enough, no need to turn on airplane mode than.
Try flashing the newest baseband version, and try the prometheus rom + kernel. I still notice that the same problem happens, but it reconnects again after losing it now, and i rarely notice it that way.
Maybe you could tell us your android version, and baseband version.
http://forum.xda-developers.com/showthread.php?t=1186406

I had a similar problem when I used GB roms without upgrading my baseband.
Sent from my LG-P920 using xda app-developers app

Hi everyone,
thanks a lot for your answers. I have the newest firmware on it V21E and baseband is L6260_MODEM_SIC_01.1042.00. Problem is that it does not automatically reconnect when it loses the internet connection. I had this problem again the whole day. When I left the office for lunch it did not reconnect, so again I did not get the newest e-mails. Probably I will really try another SIM card with a different network provider. I never had this issue with my iPhone... Thanks a lot for the advices, hopefully something will work. Otherwise I need to get a new phone :/
Cheers,
Andreas

For me the 3g data service goes as it likes but to reconnect i have to restart the my phone. Tried many roms as well as kernels and finally using acura 3d Max 3.1 with titan kernel solved the problem. It doesn't give up 3g connection but if i switch to edge and back to hsdpa again i have to restart. Barry also lasts and have overclocked to 1.2 ghz

In the Dailer APP dial *#*#4636#*#* Phone info Scroll Down just above the turn off radio button Change from WCDMA Preferred to WCDMA only

Good morning (at least here in Germany it is morning *g*),
got me a new SIM card with a new provider yesterday evening and so far it seems to work fine in the office. I hope it stays like this, then the problem would be solved *phew* Thanks a lot for all your help!
Cheers,
Andreas

[Q] mobile data problem

Hello, im bernando, i have a problem and i hope someone here know how to fix it.
Im using HTC One and now using an Indonesian provider. For the last 3 days i've had some connectivity problem. Whenever i turned data connection on everything worked fine, i can browse, my new bbm and line messages popped up like some normal phone, but all those things now happened for only around HALF MINUTE / 30 SECONDS ! after that only the UP arrow of mobile data arrows lit up and my phone acted just like it had no connection.
I've been lookin around google and never found any solution. My friends with the same carrier didnt have this problem and its driving me nuts ! I've been to the provider customer service and they gave me a new sim card but nothing changed.
also, i dont think its an APN problem.
So please someone help me, 4 days without normal connection is just frustrating, especially it happened to my first flagship phone.
Thank you in advance

Mobile data aint working

I haven't been able to use moblie data at home for some reason although LTE is shown it gives me not connected to the internet .But if i move around the house or go out i start recieving good speed .Any solution for this ,this is happened on RR N and NOS
I even tried flashing the c7 firmware but nothing seems to work
This is really important to me as all calls over my network are made over Data (VOLTE) therefore if there's no data I can't receive any calls

Which firmware do you have?

giocchi27 said:
Which firmware do you have?
Click to expand...
Click to collapse
I flashed this
bacon_firmware_update_2016_1-25_.4.0.1.c7-00011.zip
It was working well for 5-6 days but now I can't use data at home at all

Hunting_Party10 said:
I haven't been able to use moblie data at home for some reason although LTE is shown it gives me not connected to the internet .But if i move around the house or go out i start recieving good speed .Any solution for this ,this is happened on RR N and NOS
I even tried flashing the c7 firmware but nothing seems to work
This is really important to me as all calls over my network are made over Data (VOLTE) therefore if there's no data I can't receive any calls
Click to expand...
Click to collapse
What you'll do with jio now?
Only one day left man.

Mr.Ak said:
What you'll do with jio now?
Only one day left man.
Click to expand...
Click to collapse
Already made a mistake of subscribing for prime ,will have to use for a month before I change

Hunting_Party10 said:
I flashed this
bacon_firmware_update_2016_1-25_.4.0.1.c7-00011.zip
It was working well for 5-6 days but now I can't use data at home at all
Click to expand...
Click to collapse
I moved to this firmware for the same reason and I did'nt have further problem after.
I'm pretty confident that your problem could be fixed in build.prop

OP6 connectivity issues

Hello,
I have for the past 1 and a half years an OnePlus 6 which since the start I have an issue related to 3/4G speed outside of my home country.
Now please don't start about turning on roaming in order to have internet. I have done that since I've got my phone.
I do have internet, however the speed is absolutely terrible. It is always on GPRS and goes with bytes per second. Texting goes sort of alright, loading sending images takes up to several minutes. Beforehand I had an iPhone and I used to have 3/4G with the same simcard.
I also have a work sim which on my work cell has a good range but on my OnePlus.. again I get hooked to GPRS and it goes on a terrible slow rate.
I have reinstalled my phone several times. Went from Android 9 to 10 and the issue is still there.
It also isn't country related because I have this issue in.. Germany France United Kingdom Italy Austria Hungary Poland. More countries I was not able to test yet sadly.
Does anyone has an idea what this might be? Is this a setting somewhere what is enabled on default? I know multiple OP6 users with the same provider as mine i compared some phone settings and they have a normal speed while I don't. So actually I don't know anymore what it could be.

Cyxno said:
Hello,
I have for the past 1 and a half years an OnePlus 6 which since the start I have an issue related to 3/4G speed outside of my home country.
Now please don't start about turning on roaming in order to have internet. I have done that since I've got my phone.
I do have internet, however the speed is absolutely terrible. It is always on GPRS and goes with bytes per second. Texting goes sort of alright, loading sending images takes up to several minutes. Beforehand I had an iPhone and I used to have 3/4G with the same simcard.
I also have a work sim which on my work cell has a good range but on my OnePlus.. again I get hooked to GPRS and it goes on a terrible slow rate.
I have reinstalled my phone several times. Went from Android 9 to 10 and the issue is still there.
It also isn't country related because I have this issue in.. Germany France United Kingdom Italy Austria Hungary Poland. More countries I was not able to test yet sadly.
Does anyone has an idea what this might be? Is this a setting somewhere what is enabled on default? I know multiple OP6 users with the same provider as mine i compared some phone settings and they have a normal speed while I don't. So actually I don't know anymore what it could be.
Click to expand...
Click to collapse
Try forcing your phone to LTE Only
Dial *#*#4636#*#*
Go to phone information
Set preferred network type to LTE Only for 4G
or LTE/WCDMA for 4G/3G
In LTE Only mode, you may or may not be able to receive or make calls.

Get the following error
https://pasteboard.co/Jn7Yq6Y.jpg

Cyxno said:
Get the following error
https://pasteboard.co/Jn7Yq6Y.jpg
Click to expand...
Click to collapse
I don't see any error. It is working correctly as I can see. Your data is off. It's UMTS that is likely to be H+ network i.e. 3G.
---------- Post added at 04:08 PM ---------- Previous post was at 04:05 PM ----------
Kinghacker said:
I don't see any error. It is working correctly as I can see. Your data is off. It's UMTS that is likely to be H+ network i.e. 3G.
Click to expand...
Click to collapse
Also Phone 0 is your sim 1 and Phone 1 is sim 2, FYI just in case.

I know everything looks fine. My connection says R
However I just don't have any internet with either sim ad soon as I go over the border.
If I put my sim in another person's phone it works. Their sim in mine nope.

Cyxno said:
I know everything looks fine. My connection says R
However I just don't have any internet with either sim ad soon as I go over the border.
If I put my sim in another person's phone it works. Their sim in mine nope.
Click to expand...
Click to collapse
Some networks doesn't provide data services while in roaming.
As you say it works in other phone. It seems your device is faulty.
You said you reinstalled Android 9 and 10. How did you do that?
Did you use MsmDownload Tool? Or just zip flashing? Or fastboot rom?
I would suggest to backup all data and completely wipe your phone using MsmDownload Tool.
If you've already done that then I'm afraid Network Module/Chip (usually referred as Modem) is faulty.
You will have to visit service center or repair shop to know exact fault.