Develop Bugs

Signal Issues, please help

Hi guys, just flashed a new rom (jm7).. everything went ok.. but when I rebooted I notice that I get just about no signal in areas where I used to before get full bars.
Tried going back to other rom's but no luck, I still continuously get a poor signal. One thing I did notice is that right after boot the signal slowly goes to 5 bars (even in areas with bad signal) and then slowly goes down to 0-1. This same instance happens when I place a phone call as well.
Any ideas? I can barely use data when this is going on as well.

Try going into mobile networks and network operators and see if there's a second option for your network. You might be connected to a weather signal. It's under wireless settings. Happened to me.
Sent from my GT-I9000 using XDA App

Are you sure that your network operator make some not some work on cell bt in your area? One time i have too like you bad and wrong signal, and make all with my galaxy, reboot,recovery, signal refresh app, APN point new entered, but still problem. After all, I call my operater and they say me:" Sorry , we make same work on cell base station in area your city !!! Sorry for bad signal, we busy to make repair speedy !!! "
Best regards

Sorry double post

Thanks for the responses... no go sadly.. tried switching the 3 different "bell" networks and only 1 allowed me to connect. As for signal str in area, a friend who has the same network has 4 full, while i only get 1
I've tried reformatting/reflashing/reseting and nothing has worked.. what am i missing?

Uss_Defiant said:
Thanks for the responses... no go sadly.. tried switching the 3 different "bell" networks and only 1 allowed me to connect. As for signal str in area, a friend who has the same network has 4 full, while i only get 1
I've tried reformatting/reflashing/reseting and nothing has worked.. what am i missing?
Click to expand...
Click to collapse
Follow my instructions here
Should fix your problem

Worked perfectly, thanks a bunch
Sent from my GT-I9000 using XDA App

ICS Leak - Missed Calls and Data Drops on LTE

I have been running the ICS leak for quite some time now and haven't had any major problems with it until now. Ever since they launched LTE in my area I have been having trouble with my phone not receiving calls. When I finally talk to the person that was trying to call me, they say that it would ring twice and then go to voicemail. My phone never rings and I don't receive any notifications about missed calls. I have also noticed that when it does this, my data no longer works at all. If I toggle airplane mode, it will snap the phone out of it.
This problem seems to be growing in frequency. ATT tried to sell me some BS about the phone gets clogged with interference from travelling through low signal areas and they re-registered my phone on the network and told me to give it a try. My phone is still having this issue. LG had no clue what was going on with my phone.
Does anyone have any idea of what could be going on and what I can do to fix this?

New rom? Just in case something did happen with the rom somehow.
Sent from my LG-P930

I'm also having the same problem on official Bell ICS...

accent1016 said:
I have been running the ICS leak for quite some time now and haven't had any major problems with it until now. Ever since they launched LTE in my area I have been having trouble with my phone not receiving calls. When I finally talk to the person that was trying to call me, they say that it would ring twice and then go to voicemail. My phone never rings and I don't receive any notifications about missed calls. I have also noticed that when it does this, my data no longer works at all. If I toggle airplane mode, it will snap the phone out of it.
This problem seems to be growing in frequency. ATT tried to sell me some BS about the phone gets clogged with interference from travelling through low signal areas and they re-registered my phone on the network and told me to give it a try. My phone is still having this issue. LG had no clue what was going on with my phone.
Does anyone have any idea of what could be going on and what I can do to fix this?
Click to expand...
Click to collapse
Why not use the official release?

accent1016 said:
I have been running the ICS leak for quite some time now and haven't had any major problems with it until now. Ever since they launched LTE in my area I have been having trouble with my phone not receiving calls. When I finally talk to the person that was trying to call me, they say that it would ring twice and then go to voicemail. My phone never rings and I don't receive any notifications about missed calls. I have also noticed that when it does this, my data no longer works at all. If I toggle airplane mode, it will snap the phone out of it.
This problem seems to be growing in frequency. ATT tried to sell me some BS about the phone gets clogged with interference from travelling through low signal areas and they re-registered my phone on the network and told me to give it a try. My phone is still having this issue. LG had no clue what was going on with my phone.
Does anyone have any idea of what could be going on and what I can do to fix this?
Click to expand...
Click to collapse
Voice data is not sent over the LTE network but instead is sent over EDGE, HSUPA or HSDPA (gsm) networks. This is because LTE was designed to handle data only. Currently a few mobile operators are begging to launch voice over LTE capabilities (VoLTE). However ATT does not support VoLTE capabilities so whenever you place or receive a call your handset will switch to the gsm network to handle voice.After the call has ended your handset usually takes a few seconds to automatically switch back to LTE if available. During the time your phone is switching back networks your data will be inaccessible. If your phone does not switch back or your data never returns then you can toggle on/off airplane mode to reset it as you have mentioned doing. This should not be happening very often, unlike what you describe. What I would suggest is flashing HoNo's CWM official V20c ICS from att. This will update your phones baseband and firmware for your radios and I've also heard is more stable and has improved battery life. Hope I could help.
Sent from my Nexus 7 using xda app-developers app

accent1016 said:
I have been running the ICS leak for quite some time now and haven't had any major problems with it until now. Ever since they launched LTE in my area I have been having trouble with my phone not receiving calls. When I finally talk to the person that was trying to call me, they say that it would ring twice and then go to voicemail. My phone never rings and I don't receive any notifications about missed calls. I have also noticed that when it does this, my data no longer works at all. If I toggle airplane mode, it will snap the phone out of it.
This problem seems to be growing in frequency. ATT tried to sell me some BS about the phone gets clogged with interference from travelling through low signal areas and they re-registered my phone on the network and told me to give it a try. My phone is still having this issue. LG had no clue what was going on with my phone.
Does anyone have any idea of what could be going on and what I can do to fix this?
Click to expand...
Click to collapse
I had the same problems with the leak at home where I have a weak signal. Never had any problems with CM9 or GB. When I switched to the official rom all those problems went away. So I think it was just a baseband issue with the leak.
Sent from my LG-P930 using xda app-developers app

We ( my wife and I) got the same issue... With Bell.
So we sent both phone ( GB by the way non root ) to bell to get them repair ...
Sent back the phone... 1 h later ... got the same issue .. so they ( futuretel in Markham Ont Canada) dont find the issue, they just reflash the phone.
sent it and ... weeks later got it back ... lost it again ... but they change hardware and also reflash.
Now it's my turn ...
I'm still waiting for my phone because when i got it back, got issue ( probably firmware ) because I lost the speaker and speakerphone ... so if someone call me i was not able to ear them...
Sent back the phone again for repair and now i'm waiting.
Update my wife phone 2 day's ago with ICS from LG( bell ) and I dont think she got the issue.
If it's happening again, LG will have to step in because it's 2 repair for the same issue.
Since we are not alone in this situation we will be able to remove the hypothesis
of interference in our house!
And again ... when I was talking with someone from Bell support, I told them I would like to try custom Rom if the issue is still there...
The person agree with me... yes weard from someone from bell...
Other than that ... it would be good for people to "catlog" the drop signal / no voice service...
Some one have a good tool that can track that specific issue ?
Thanks!

[Q] ace 2 network problems

Hello
I've just bought a new galaxy ace 2 and I am experiencing some problems.
When I'm using only gsm network type (i think, now I'm testing HDSPA), typically, when I'm logged on icq, mobile sometimes loosses signal and displays there is no service. After few seconds is everything OK and network is back at full singal. This can be seen also in battery usage view, when I'm having always yellow line with thin red places.
I'm now using it with mixed mode on HDSPA and there are no problems with network.
The phone is under warranty, so there is no problem, but I dont have much time and first I would try other solution. I tried to flash it with odin to same fw, but no change. I tried to google it but I didnt find any solution. Could you give me advice?
Thanks for answers

Odp: [Q] ace 2 network problems
Check phone with another sim card (another operator, wipe phone - go back to stock settings)
Sent from my Ace 2 using xda premium

Thanks for reply, I'll try
Today I was all time on HDSPA a there was no problem

Had this problem before I updated to 4.1.2. Use to happen on trains for some reason as well.

Yeah I've same paroblem with a specific operator.(stock GB rom)

still experiencing that problem, any more ideas?
no problems when 3g or data connection off
thinking about installing mc8 but I'm not sure, because I've a 8160P version

I also have problems with mobile data. I have done everything :factory reset, flashed roms, and finally fid solution yesterday but i have problem again . My mobile data doesnt work no any type of network and do icon
Please somebody help !

Stevk said:
Had this problem before I updated to 4.1.2. Use to happen on trains for some reason as well.
Click to expand...
Click to collapse
Well the "train" issue is due to the train being like a faraday cage, blocking the various microwave signals, the reason you get a signal on a train is because they have amplifiers to retransmit the signal into the train and vice versa.

...what network?

I have problem with mobile data. Apn: ERONET START (gprs.eronet.ba) i can acess with other phone on my sim card. Problem is in my phone but i dont know how to solve it. I can send messages and call but no any sign of data
Sent from my GT-I8160

[q] no network signal

Hi, i wonder why my note 2 doesnt have network signal, from time to time i have to reboot my phone just to have signal again is there any way i can fix this without rebooting my phone all the time. And wiping all my data cause it doesnt work i tried it already.

I have the same problem and i use Network Signal Speed Booster which works great. A permanent fix would be better though.

tyfting said:
I have the same problem and i use Network Signal Speed Booster which works great. A permanent fix would be better though.
Click to expand...
Click to collapse
do you have to start it up every time you lose signal or you never lost signal at all?

Could be SIM related. Try another SIM

[UPDATE]
so apparently i only lose signal when the phone goes into a long sleep meaning when i sleep, then when i wake up the phone service is gone and i have to reboot again to get service

Fixed mine
wlee530 said:
[UPDATE]
so apparently i only lose signal when the phone goes into a long sleep meaning when i sleep, then when i wake up the phone service is gone and i have to reboot again to get service
Click to expand...
Click to collapse
Hi, I had the same problem. I started flashing other stock roms with Odin, since then, i didn't had to restart anymore when signal failed, looked like a radio issue .
GT-N7100 Omega v18 Jelly Bean 4.1.2 Based on firmware XXDMG1 working flawlessly

No service.

Hi.
I have m919 T-Mobile Galaxy s4 but I'm with other carrier (Wind Canada).
I spent yesterday in environment where I didn't had coverage for most of the day, but i haven't gotten it back yet. Sounds really weird as it might be not connected to the fact at all. I have 4G connection active, which means that I have internet, but it keeps 'searching' for service and I can't Call/Text anyone, neither I can receive calls or texts. Instead of the bar at the top showing how good coverage i have it just shows a crossed out circle icon.
I've tried reboots, keeping my phone off for 30mins without battery, taking out sim and putting it back in, changing network modes and resetting APN (all from settings panel).
Have anyone experienced something like that and how do I fix it? It was working perfectly for last couple of months and the phone didn't get any damage yesterday neither.

re: network issues
kokozaurs said:
Hi.
I have m919 T-Mobile Galaxy s4 but I'm with other carrier (Wind Canada).
I spent yesterday in environment where I didn't had coverage for most of the day, but i haven't gotten it back yet. Sounds really weird as it might be not connected to the fact at all. I have 4G connection active, which means that I have internet, but it keeps 'searching' for service and I can't Call/Text anyone, neither I can receive calls or texts. Instead of the bar at the top showing how good coverage i have it just shows a crossed out circle icon.
I've tried reboots, keeping my phone off for 30mins without battery, taking out sim and putting it back in, changing network modes and resetting APN (all from settings panel).
Have anyone experienced something like that and how do I fix it? It was working perfectly for last couple of months and the phone didn't get any damage yesterday neither.
Click to expand...
Click to collapse
Try to go into settings>more networks>mobile networks>network operators and click "search now".
That will bring up the available networks and you need to choose the network which is your carrier.
It may take a few minutes until it stops scanning so have patience and don't back out of networks.
Good luck!

Misterjunky said:
Try to go into settings>more networks>mobile networks>network operators and click "search now".
That will bring up the available networks and you need to choose the network which is your carrier.
It may take a few minutes until it stops scanning so have patience and don't back out of networks.
Good luck!
Click to expand...
Click to collapse
I've tried that! After a while it finds my network, the coverage bars appear for a while, but then they disappear. During that time when they're appeared I can't make any calls either, once it gave me error that It can't register to network which is weird because my data is running from sim pretty good. Today I tried to go to my operator store to let me try a different SIM card - no change.

Misterjunky said:
Try to go into settings>more networks>mobile networks>network operators and click "search now".
That will bring up the available networks and you need to choose the network which is your carrier.
It may take a few minutes until it stops scanning so have patience and don't back out of networks.
Good luck!
Click to expand...
Click to collapse
Do you have any other suggestions? By the way I rooted the phone about 1.5 months ago if that makes any difference.
I'm really desperate for solution :/

kokozaurs said:
Do you have any other suggestions? By the way I rooted the phone about 1.5 months ago if that makes any difference.
I'm really desperate for solution :/
Click to expand...
Click to collapse
I suggest you reset your device to factory default. If that doesn't work, unroot your device and return to stock. If still it doesn't work, bring your device for warranty.