Network Connection lost with 4.3 and 4.4 - Galaxy S II Q&A, Help & Troubleshooting

Hi all,
I tried some of the available 4.3 and 4.4 rom but I got a huge problem is that I lost my mobile network connection after some time and sometimes even rebooting does not fix it. Sometimes when I do a call I immediately lost the connection and after 10 sec it is back and switching to 3G it let me do the call.
What can be the cause of that?
Thanks in advance for your help

Try a different modem. Ril in the custom roms may not like you're modem.
Sent from my GT-I9300 using XDA Premium 4 mobile app

andrewwright said:
Try a different modem. Ril in the custom roms may not like you're modem.
Sent from my GT-I9300 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Do you know which one I should use? Also what is RIL and which one should I use?

I changed Modem to KI4 that I found better following comments on xda but after 3 weeks I got that problem twice one on friday and one yesterday. When my battery is low I lost connection and my phone become laggier and hot. What is causing that? What should I do?

Go back to stock firmware with odin and see if same problems are happening.
What rom are you on now mate?
Sent from my GT-I9300 using xda premium

andrewwright said:
Go back to stock firmware with odin and see if same problems are happening.
What rom are you on now mate?
Sent from my GT-I9300 using xda premium
Click to expand...
Click to collapse
I went to stock with odin as you did and still now it seems to be ok. I tried Neat ROM 4.4.2, Cyonogen 4.3 / 4.4, Slim Saber 4.2, 4.3, 4.4 and Neat ROM 4.1.2 and I got that problem mainly when battery is below 25% but not all time. My network simply no more working and in Quick Panel I can see No Service/Emtel (Emtel is my network provider) but I can't do nothing sometime rebooting do the trick but sometime I need to power off the phone and let it charge for about 30 min and power on and then it is back to ok. The weird thing is that it does not happened everytime sometime my battery can do to 1% and still having connection fully.
When I got that problem I noticed that my phone is heater and sometime lag.
What can be the cause of that? I'm on Stock right now without root I will tried it but the problem does not happened everytime sometime I can get it after 1 week or sometimes after 3 weeks or more.
Please help me as I would like to have 4.4.2 on my phone.
Thanks in advance for your help

Can someone help please?

Service maybe due to provider or signal tower near by. How old is you're current battery? Signal drops once in a while are very hard to solve. Things to try are modems and other network's.. That's about it. But if it only happens once in a while it's not to much to worry about and most if not all Android phones need a reboot once In a while too.
Sent from my GT-I9300 using xda premium

andrewwright said:
Service maybe due to provider or signal tower near by. How old is you're current battery? Signal drops once in a while are very hard to solve. Things to try are modems and other network's.. That's about it. But if it only happens once in a while it's not to much to worry about and most if not all Android phones need a reboot once In a while too.
Sent from my GT-I9300 using xda premium
Click to expand...
Click to collapse
Hi,
Thanks for your reply, I tried to reinstall 4.4.2 from Neat ROM and I found that the problem occur everytime my battery is below 20% and only charging it back to a higher level fix the problem of my network loss. What can be the cause?
Thanks in advance for your help.

Does it shut of signal at 20% every time? Have you installed any mod to do this to you're signal? It could be a faulty battery messing with you're signal. Battery is the first thing I would check .
Sent from my GT-I9300 using xda premium

andrewwright said:
Does it shut of signal at 20% every time? Have you installed any mod to do this to you're signal? It could be a faulty battery messing with you're signal. Battery is the first thing I would check .
Sent from my GT-I9300 using xda premium
Click to expand...
Click to collapse
The fact is that I don't understand the battery. It does not happened ever time below 20% sometimes I can use it till 1% and it is working fine and sometimes no. I don't understand the battery as when I have this problem I can power off my phone and put on charge and while charging it indicated sometimes 40%, 60% etc... as on it is saying only less than 20% you think it is the battery?
One more thing this only happened when I have data connection on but if I disable data then it work fine.

Related

Why is my works WiFi is fso slow when I have good signal?

It Works ok if im less than 5 meters away from server. But anything over that and its unusable. I work about 10 meters from the server. And I get at least 2 - 3 bars of signal out of 4. And I can't even post a comment on here. The speed is very fast for about 30 seconds and then ridiculously slow. It also struggles to connect. Tries about 3 or 4 times before it connects. I'm running cm10 on s3 but have this problem on stock, omega and checkrom. I had simular problems with the s2 aswell but not s1. I don't want to use wifi kill as its my work and it might not solve the problem. Is this the s3 working on networks with multiple apns? Is there a code I can call to turn off power saving ?? Can't force to 5ghz either.
Some advice would be massively helpful. I am getting very frustrated.
Thanks in advanced
Sent from my GT-I9300 using xda premium
Any ideas anyone?
Sent from my GT-I9300 using xda premium
The s3 q&a is far more helpful than this whole community?
Thanks to d4seeker and jje
Sent from my GT-I9300 using xda premium
Ive fixed mine!
http://forum.xda-developers.com/showthread.php?t=1805572
Sent from my GT-I9300 using xda app-developers app
I believe the problem lies in network or in the wifi router. Maybe it's overloaded, try on-off cycling the router and see if it works then?
I kinda doubt that the issue is in the phone
I've fixed it now mate. Well chuffed. Don't know what it was really. But the method I used in above thread worked. It all started when I first rooted and flashed omega. Cm9 got rid of the authentication error (so it seems Sammy is at fault there) as for the WiFi range of about 3 meters and no connectivity after that distance. I'm not sure. Perhaps a problem deep in the settings I could not find. But completely wiping all settings worked. Not ideal. But confirmed working all day at work. So maybe a omega fault I don't know. Jus happy to have fixed it
Sent from my GT-I9300 using xda app-developers app
slking1989 said:
It Works ok if im less than 5 meters away from server. But anything over that and its unusable. I work about 10 meters from the server. And I get at least 2 - 3 bars of signal out of 4. And I can't even post a comment on here. The speed is very fast for about 30 seconds and then ridiculously slow. It also struggles to connect. Tries about 3 or 4 times before it connects. I'm running cm10 on s3 but have this problem on stock, omega and checkrom. I had simular problems with the s2 aswell but not s1. I don't want to use wifi kill as its my work and it might not solve the problem. Is this the s3 working on networks with multiple apns? Is there a code I can call to turn off power saving ?? Can't force to 5ghz either.
Some advice would be massively helpful. I am getting very frustrated.
Thanks in advanced
Sent from my GT-I9300 using xda premium
Click to expand...
Click to collapse
It can be many problems! Maybe the ROM that you are runing has poor Wi-Fi support or maybe the phone is just "getting old" or maybe its the Wi-Fi set that sends you the signal!
I got a s3 which is not old but I've fixed it now. Thanks
Sent from my GT-I9300 using xda app-developers app

No Network Coverage - Res Remix Rom

Installed res remix two days ago it was working fine network coverage seemed fine... then I woke up and I had emergency calls only no signal... Tried re-flashing didn't help. Tried a stock rom and it still didn't work.. simcard works fine in friends phone, and a simcard on the network Three works fine in my phone :/ so i'm abit lost at what to do, I'm pretty new to all of this so please ignore my stupidity lol
I think it has something to do with the baseband or modem
Sent from my GT-I9100 using xda app-developers app
Varcolac said:
I think it has something to do with the baseband or modem
Sent from my GT-I9100 using xda app-developers app
Click to expand...
Click to collapse
i've tried different modems and the phone works on a different network sim would that still cause it
Search the thread for a modem of your region and try a few till you get one to your liking. Takes a while for the phone to get 'used' to a new modem so even if it isn't the best at first, the signal tends to improve after about a day or so. I have never encountered problems with signal but I hope this helps
Sent from my GT-I9100 using xda app-developers app
Sent from my GT-I9100 using xda app-developers app
Varcolac said:
Search the thread for a modem of your region and try a few till you get one to your liking. Takes a while for the phone to get 'used' to a new modem so even if it isn't the best at first, the signal tends to improve after about a day or so. I have never encountered problems with signal but I hope this helps
Sent from my GT-I9100 using xda app-developers app
Sent from my GT-I9100 using xda app-developers app
Click to expand...
Click to collapse
tried that mate.. i've got the KH3 modem on and it's apparently best for the UK and my network :/
thelor said:
Installed res remix two days ago it was working fine network coverage seemed fine... then I woke up and I had emergency calls only no signal... Tried re-flashing didn't help. Tried a stock rom and it still didn't work.. simcard works fine in friends phone, and a simcard on the network Three works fine in my phone :/ so i'm abit lost at what to do, I'm pretty new to all of this so please ignore my stupidity lol
Click to expand...
Click to collapse
I've used RR. I did however experienced this but I waited for almost 30 mins before I got my signal back.
thelor said:
tried that mate.. i've got the KH3 modem on and it's apparently best for the UK and my network :/
Click to expand...
Click to collapse
You could try xxlpq/s/x.
natsn horsley
theunderling said:
You could try xxlpq/s/x.
Click to expand...
Click to collapse
Tried them mate... at the moment the phone is working fine.... with THREE network but means i can't use my old sim which was just topped up

[Q] Internet Connection randomly dropping?

Hi All,
I have been having an issue for about the last 2 weeks or so where I will randomly see in my notification panel (when I pull down) that it says there is "no internet connection" and I cant seem to figure out why. This happens about every 2 days or so.
I try to toggle air plane mode (on and off) but it does not fix the issue and I am forced to reboot to get the connection to restore. I searched for something similar but didn't find anything.
I am dual booting with Siyah Kernel and my main ROM is Dark Paranoid and my secondary ROM is Wanam Lite (Samsung based). I use the MAIN ROM 99.9% of the time and it is here where I am seeing this weird drop of internet connection. I am OC'd to 1.6 but NO UV of any kind.
Is anyone else having this issue? Can anyone advise on what I can do about it? I have not flashed a new Modem since owning the device so maybe that's the issue? I'm in Canada and the device language was Dutch I believe when I first booted it after I bought it. Obviously this is the I9300 International version. I'm on Rogers Wireless in Canada. Can anyone recommend a good / new modem for it maybe?
Please advise.
Thanks,
I suggest you wipe caches and dalvik caches
Sent from my GT-I9300 using xda premium
I had a similar problem,have you toggled fast dormancy? I turned that off and it solve my problems with data.
Sent from my GT-I9300 using xda app-developers app
saywhatt said:
I suggest you wipe caches and dalvik caches
Sent from my GT-I9300 using xda premium
Click to expand...
Click to collapse
I do wipe these probably every couple of days just to keep the device at "peak performance" but the issue still happens...
lvb2208 said:
I had a similar problem,have you toggled fast dormancy? I turned that off and it solve my problems with data.
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
Ya know?... I haven't even thought about "fast dormancy" being an issue on this device but now I remember having a similar issue on my SGSII.
Do you have the dialer code to get to that menu? I will give it a try and see what happens...
lvb2208 said:
I had a similar problem,have you toggled fast dormancy? I turned that off and it solve my problems with data.
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
Well I tried the "fast dormancy" app on the Play Store and my data speeds went to sh!t... I don't know if this is the answer for me...

Wifi not working

I am facing a problem in wifi c currently. If my phone has been up for more than 25 hrs then the wifi does not start up I need to restart the phone and in that process my battery drains by 10-20%
Also when the wifi is on the phone gets heated a lot in the top area at the back.
Kindly help.
I am currently on stock 4.0.3 xwlp7.
Sent from my GT-I9100 using xda app-developers app

Loosing data connection random

Anyone know why my s5 loosing data connection random, I have to either turn on airplane mode on and off are restart phone for it to connect back
Sent from my SM-G900T using Tapatalk
Nah that don't happen to me at all. Are you running a custom Rom?
TheArtiszan said:
Nah that don't happen to me at all. Are you running a custom Rom?
Click to expand...
Click to collapse
Yes alliance
Sent from my SM-G900T using Tapatalk
I get the problem occasionally too but fixes when I do a hotboot
I've been having the same problem for the past week. Just started out of no where. Sometimes a reboot doesn't fix ot. Completely stock here.
Sent from my SM-G900T using Tapatalk
So it might be a tmobile thing then i guess
Sent from my SM-G900T using Tapatalk
A matter of fact some s5 do it and some don't
Sent from my SM-G900T using Tapatalk
Yes I get this several times a day (10+ times). I've found that either going in and out of airplane mode, or more easily, attempting to place a call (doesn't matter if it connects, I usually just call my voicemail and hang up immediately) fixes it. I had this issue much less frequently with the GS4 and I had a previous GS5 that I turned in on warranty for an unrelated microphone issue which had the same problem. I live in a big city if that matters at all as it's possible it's a network issue (I often go into buildings/elevators where there is no service which sometimes seems to cause it when the phone tries to reconnect to the network).
I've found that a little bit of tape helps keep my data from being loose.
github said:
I've found that a little bit of tape helps keep my data from being loose.
Click to expand...
Click to collapse
What u me tape?
Sent from my SM-G900T using Tapatalk
mrimage said:
Anyone know why my s5 loosing data connection random, I have to either turn on airplane mode on and off are restart phone for it to connect back
Click to expand...
Click to collapse
Hard to say since you gave us no details about your phone configuration. What is your OS version? One of the bugs that the 4.4.3 update is purported to address is frequent data connection dropouts. Sound familiar?
.
fffft said:
Hard to say since you gave us no details about your phone configuration. What is your OS version? One of the bugs that the 4.4.3 update is purported to address is frequent data connection dropouts. Sound familiar?
.
Click to expand...
Click to collapse
Yes sound familiar, it happens on stock are beans rom
Sent from my SM-G900T using Tapatalk
And you still didn't tell us your OS version or other useful details that would enable us to help..
also did u tried to update the NF6 version yet?
I am running beans nf6 rom and modem
Sent from my SM-G900T using Tapatalk
It happens to me on the stock nf6 rom too
Sent from my SM-G900T using Tapatalk
Ive had at least 7 different phones and numerous tmobile customers complain of this. From whatbi understand its cause there doing major network upgrades
Sent from my SM-G900T using XDA Free mobile app
I figured it was because of network upgrades. I just got VOLTE in my area so that could explain it.
Sent from my SM-G900T using Tapatalk

Categories

Resources