Database Users

Unable to turn ON data connection on Focus v1.3

I have a unlocked Samsung Focus v1.3 with Mango update. I am a 3G SIM card (Airtel 3G).
Sometimes when I am trying to enable data connection, phone is refusing me to do that. The setting shows data connection ON, but 3G symbol on top does not appear.
This happens even on multiple retries and when signal strength is full. Using the same SIM card I am able to connect to internet using my older Nokia phone without any issue.
The only solution I have been able to find is to soft reset (restart) the phone. Then it is able to enable data connection. I also think that this issue appeared after I updated it to Mango. With stock NoDo update it was working fine (though I had this phone only for 2 weeks before updating to Mango).
Is anybody else also facing this issue?

yes i am having a similar issue with my focus, it is unlocked for use in the UK on o2 but when ever i turn my data on it says its connected i have the 3g symbol and everything but when i try and go on the internet it has not connection to resolve this problem i delete my apn and enter it again but that dose not work sometimes and it is really annoying
many thanks if you can help me

^^ Thanks for confirming that I am not the only one facing this issue. But still it is weird that only a few might be facing this issue.
I am still trying to find out the exact solution, so whenever I find it I will post it here.

APN settings? is the sim card for that device originally?or carrier specific"?

Vintage144 said:
APN settings? is the sim card for that device originally?or carrier specific"?
Click to expand...
Click to collapse
I have used correct APN settings for my Service Provider. Hence on a good day, I am able to connect to Internet. I have also confirmed the settings from CC.
But as I have described earlier, sometimes phone just doesn't turn on data connection. This happens without any specific reason. On other forums too people are reporting the same behaviour.

Same problem here with Movistar in Colombia
Sent from my Samsung Focus using Board Express

fixed my problem, i had the radio set to north america instead of world

marousa_king said:
fixed my problem, i had the radio set to north america instead of world
Click to expand...
Click to collapse
That has nothing to with problem I am facing. This setting for radio is for FM radio and not for mobile radio. You might face the issue again. Sorry but that's the truth!

did u try another sim card?
A friend with same data plan?
And another operator sim?

When i changed wifi to data it came to me, there was a app for that first it closes wifi then open data connection. For wifi again, first it closes data connection and opens wifi.

I got same problem. Using unlocked focus with airtel connection india. On a good day the phone will work with gprs/3g just fine. But occasionally connection drops and the phone won't reconnect. I have to manually restart the phone to connect to internet once again. Any solution for this? I guess people in US aren't facing such an issue..

I have the exact same problem. This problem arises only on DATA connections!
Using ATT Samsung Focus v.1.3 on Idea Cellular Sim Card in India

[Q] "Mobile Network Not Available" on Nexus 4 T-Mobile

I've been having this problem for a few days now. Whenever I try to make a call, it gives me the message, "Mobile Network Not Available." I am able to connect to Wi-Fi without a problem but I cannot make or receive phone calls or text messages - only "EMERGENCY CALLS ONLY" I thought it was because I had weak signal at home so I traveled somewhere else but still, with little success.
I've tried everything I can think of. I have:
- Factory reset it (many many times)
- Removed the SIM card and put-it-back-in trick
- Put my SIM card onto another phone and worked just fine
- Airplane Mode On>Turn off phone> Turn back on phone> Turn off Airplane mode
- Create a new APN under T-mobile settings
- Turned the Radio off and back on again
- Went to Settings>More>Mobile networks>Network operators>T-Mobile and it gives me "Your SIM card does not allow a connection to this network." and sometimes, "Cannot connect to this network, please try again later"
- Turned on "Use only 2G Networks"
- Turned on "Data Enabled"
- Turned on and off "Data Roaming"
- In the Setting>About Phone>Status, it says,
"Network: Unknown"
"Mobile Network Type: UNKNOWN:0"
"Mobile Network State: Disconnected"
I have tried all of this and I am still unable to make or receive calls and text messages. Anyone, please help me !!

Sounds like you need a new Sim card. If you tried putting the Sim card in another phone and it doesn't work, then most likely it's a Sim card issue. Order one online or head over to a T-Mobile store and they should give you one for free.
Sent from my Nexus 7 using Tapatalk 2

scream4cheese said:
Sounds like you need a new Sim card. If you tried putting the Sim card in another phone and it doesn't work, then most likely it's a Sim card issue. Order one online or head over to a T-Mobile store and they should give you one for free.
Sent from my Nexus 7 using Tapatalk 2
Click to expand...
Click to collapse
No, when I put my SIM card on another phone, it worked just fine. I did not have any problems with signal reception. Sorry for the confusion.

bubblyloops said:
No, when I put my SIM card on another phone, it worked just fine. I did not have any problems with signal reception. Sorry for the confusion.
Click to expand...
Click to collapse
did you buy the phone used, or off ebay(or similar)? maybe your phone is blacklisted..

simms22 said:
did you buy the phone used, or off ebay(or similar)? maybe your phone is blacklisted..
Click to expand...
Click to collapse
I got the phone through a friend. Is there anyway to check if my phone is blacklisted?

simms22 said:
did you buy the phone used, or off ebay(or similar)? maybe your phone is blacklisted..
Click to expand...
Click to collapse
I just checked and I got, "Result: Your IMEI Number is currently unblocked. "

bubblyloops said:
I just checked and I got, "Result: Your IMEI Number is currently unblocked. "
Click to expand...
Click to collapse
id call tmobile to find out for sure

bubblyloops said:
I've been having this problem for a few days now. Whenever I try to make a call, it gives me the message, "Mobile Network Not Available." I am able to connect to Wi-Fi without a problem but I cannot make or receive phone calls or text messages - only "EMERGENCY CALLS ONLY" I thought it was because I had weak signal at home so I traveled somewhere else but still, with little success.
I've tried everything I can think of. I have:
- Factory reset it (many many times)
- Removed the SIM card and put-it-back-in trick
- Put my SIM card onto another phone and worked just fine
- Airplane Mode On>Turn off phone> Turn back on phone> Turn off Airplane mode
- Create a new APN under T-mobile settings
- Turned the Radio off and back on again
- Went to Settings>More>Mobile networks>Network operators>T-Mobile and it gives me "Your SIM card does not allow a connection to this network." and sometimes, "Cannot connect to this network, please try again later"
- Turned on "Use only 2G Networks"
- Turned on "Data Enabled"
- Turned on and off "Data Roaming"
- In the Setting>About Phone>Status, it says,
"Network: Unknown"
"Mobile Network Type: UNKNOWN:0"
"Mobile Network State: Disconnected"
I have tried all of this and I am still unable to make or receive calls and text messages. Anyone, please help me !!
Click to expand...
Click to collapse
Go to Settings and check your baseband. If it says not available or something like that then you'll need to flash a new radio

A problem with mobile data and dual sim function !,plz help

Hi guys ,i hope u can help me with this..
recently i just got the grand 2 like 2 months ago...when i tried to activate mobile data (of sim1) i had a problem ,it's not working,
I tried to trouble shoot the problem by changed apn's and stuff like that with the cust service,,nothing,
however,when i remove the 2nd sim the data of the sim1 ( which i want to activate) starts working ,I always make sure that sim1 os on wcdma and sim 2 mode is on gsm...i had sim 2 as clipped micro sim,however went to store and got a brand new micro sim to see if the clipped one was the problem ,nothing changed ,also swapped their position and placed sim1 in place of sim 2 and voice versa ,nothing happened same problem ,,,I also sometimes get a message saying:
the mobile network will be unavailable until you restart with a valid sim card inserted ,,and only the restart button available and u can't override it by pressing home key or anything so restarting in this case would be mandatory ,,that's why i chaned the 2nd sim card but nothing happened.
now i still can't get mobile data on my neww phone from sim1 and it's driving me crazy ,i think it's a software issue but am not sure cuz when i go to sim card manager and change the data service network to sim2 then put it back on sim1 ,some times the H+ appears and it works ,but not always and not for a long time,,,,,so the problem is between mobile data and dual sim functionality ,do u have this as a common issue ???,,please help
again ts steps i made:
1-re positioned sims in place of each other.
2-changed sim2 into an original micro sim instead of the clipped one i used to have.
3-i reset phone to factory defaults but same problem appeared

nero007 said:
Hi guys ,i hope u can help me with this..
again ts steps i made:
1-re positioned sims in place of each other.
2-changed sim2 into an original micro sim instead of the clipped one i used to have.
3-i reset phone to factory defaults but same problem appeared
Click to expand...
Click to collapse
I think it is a hardware issue. take it to the service center and insist on getting the issue sorted out as they will try to fob you off with some excuse or other.
all the best
schubeir

Roaming
nero007 said:
Hi guys ,i hope u can help me with this..
recently i just got the grand 2 like 2 months ago...when i tried to activate mobile data (of sim1) i had a problem ,it's not working,
I tried to trouble shoot the problem by changed apn's and stuff like that with the cust service,,nothing,
however,when i remove the 2nd sim the data of the sim1 ( which i want to activate) starts working ,I always make sure that sim1 os on wcdma and sim 2 mode is on gsm...i had sim 2 as clipped micro sim,however went to store and got a brand new micro sim to see if the clipped one was the problem ,nothing changed ,also swapped their position and placed sim1 in place of sim 2 and voice versa ,nothing happened same problem ,,,I also sometimes get a message saying:
the mobile network will be unavailable until you restart with a valid sim card inserted ,,and only the restart button available and u can't override it by pressing home key or anything so restarting in this case would be mandatory ,,that's why i chaned the 2nd sim card but nothing happened.
now i still can't get mobile data on my neww phone from sim1 and it's driving me crazy ,i think it's a software issue but am not sure cuz when i go to sim card manager and change the data service network to sim2 then put it back on sim1 ,some times the H+ appears and it works ,but not always and not for a long time,,,,,so the problem is between mobile data and dual sim functionality ,do u have this as a common issue ???,,please help
again ts steps i made:
1-re positioned sims in place of each other.
2-changed sim2 into an original micro sim instead of the clipped one i used to have.
3-i reset phone to factory defaults but same problem appeared
Click to expand...
Click to collapse
Hi.
I was searching for a solution for exactly the same problem.
I have the same phone as you and I get this to work if I select the option to allow Roaming, even though I fix the network operator to my provider's network. Strange but it should work.
Leifur.

m too facing the same prob in my grand prime 4g... i bought dis sum 10-15 days ago... plz help me to solve dis... othrwise i hv to use it as a single sim... any suggstion...plz help
Sent from my SM-G531F using XDA Free mobile app

Here is the best solution: I faced the same problem and fixed it doing the following...
First restart your phone, when you do that you will see the sim configuration settings screen appears at the boot time and allows you to choose which sim card to use for the Data Service Network... it has three options
1. Sim1
2. Sim2
3. Data service is Off
the third option is active and set by default which is why my cellphone was not working internet and i changed it to Sim1, and it worked perfectly so you have to try it again and again by changing the sim card in their slot... hope that helps!

my 4g on this phone is stopped working and there is so much hang problem in this phone, don't buy it, I did factory reset so many times in this phone to remove my problems but they remained as it is. I am writing about samsung galaxy grand prime 4G phone, model G531.

hello frnd i hv problem with my g7102 is not connecting to internet i have tried everything like mobile hard reset apn setting flash new roms but still data connection wont turn on but wifi is working please help guys

The only solution is to fix the hardware

My samsung SMG- 7102 network problem.when i start the mobile data then network are automatically no service pls help me

Note 3 - Not connecting to my network

I have a Galaxy Note 3 with a problem. When i put my sim card in, it asks for SIM PIN and I type it. Then I get "Emergency Calls Only" or "No service. It wont connect to my SIM CARD NETWORK.*
I have tried/Things I know
-Checking Network Operator and select network from there. Tried also "Select Automatically" still nothing happend. It pops out " Registred on network" but it is not.
- I have changed Network Mode from "LTE/WCDMA/GSM" to "WCDMA/GSM", then!! My network comes up in 5 seconds and go to normal again "Emergency Calls only"*
- My IMEI is not blacklisted! It comes up on screen when typing *#06#.
- MY PHONE connects to the 4G perfectly! I get internet to surf from my SIM CARD! It means the phone is actually connected to the phone. BUT why dont it connect to the operator so I can call?
- Also I have saved contacts on my sim card and then sync to the phone, that means that the SIM is connected to the phone.
This is not a hardware problem, I changed the antenna, but still the same problem happend. I believe this is a software problem.
Everything I change between Network Modes, my NetworkOperator came up in the top corner left in 5 seconds and then went to "No service/Emergency calls only"
I have also factory reseted and installed stock firmware from my country.
Android Lollipop
Sent from my SM-N9005 using XDA Free mobile app

Is it possible that mobile network signal happen to be poor at the spot where you are?
Hope anyone others below will help you. Anyway, good luck to you.

The signal is full.
Sent from my SM-N9005 using XDA Free mobile app

Signal Bars are Full but Unable to Call

Moto X Play dual SIM. Both SIMs are original (not cut) nano SIMs from two different GSM operators. The phone is not rooted, flashed / reflashed, everything is stock. Both signals bars are full but I am unable to make outgoing calls. I dial a number but no any sound coming from the earpiece - no tones or other party’s voice, nothing, just absolute silence. After some time I hear short “beep”, the line is automatically disconnected and the phone returns to standby. Same happens for both SIMs. I can temporary fix that problem by the phone OFF / ON and then it is possible to make calls. As far as I understand during OFF / ON the phone signs-out / signs-in into GSM networks and that fixes the problem. But after some time it returns again. I several times cleared cache partition and made one hard reset via Settings > Backup & Reset > Factory Data Reset. But that did not help. I also tried various settings for Preferred Network Type (4G, 3G) but that did not help as well.
Please assist.

Sirob said:
Moto X Play dual SIM. Both SIMs are original (not cut) nano SIMs from two different GSM operators. The phone is not rooted, flashed / reflashed, everything is stock. Both signals bars are full but I am unable to make outgoing calls. I dial a number but no any sound coming from the earpiece - no tones or other party’s voice, nothing, just absolute silence. After some time I hear short “beep”, the line is automatically disconnected and the phone returns to standby. Same happens for both SIMs. I can temporary fix that problem by the phone OFF / ON and then it is possible to make calls. As far as I understand during OFF / ON the phone signs-out / signs-in into GSM networks and that fixes the problem. But after some time it returns again. I several times cleared cache partition and made one hard reset via Settings > Backup & Reset > Factory Data Reset. But that did not help. I also tried various settings for Preferred Network Type (4G, 3G) but that did not help as well.
Please assist.
Click to expand...
Click to collapse
Looks like a hardware defect

any news? ?

Sirob said:
Moto X Play dual SIM. Both SIMs are original (not cut) nano SIMs from two different GSM operators. The phone is not rooted, flashed / reflashed, everything is stock.
Please assist.
Click to expand...
Click to collapse
try this
forum.xda-developers.com/moto-x-play/help/network-band-changed-to-usa-t3278614

Thank everybody. Trying to fix “unable to call” problem I was playing with various settings in *#*#4636#*#* menu and did the same mistake as in bablu048's link - I clicked USA band and had no network on SIM 1 (( Having checked I found only one solution – to reflash original ROM. Since I was unable to reflash myself I yesterday gave the phone to service shop and it is now not with me. Once the shop do not fix my phone I shall follow bablu048 advice and let you know the outcome.

I got the phone from the service and it is now working well. They did not tell me what they did, just took the money So, I do not know whether they reflashed complete official ROM of the radio only or somehow reset the radio etc. But GSM network on SIM 1 is back and no "unable to call" problem so far. Once I am again unable to call I will try what bablu048 suggested

Unfortunately "unable to call" is back I shall try bablu048 advice as soon as I can but once somebody have any other suggestions please advise ASAP.

Have you tried with 1 sim card only?
Sent from my XT1562 using XDA-Developers mobile app

No, I have not tried with one SIM only. Actually, that problem is intermittent and it is quite difficult to troubleshoot it. What seems to me is that I am usually unable to make calls when GSM mobile data is turned ON. At least, I cannot recall that I was unable to call when I was in the office or home where Wi-Fi was available.
Is that possible that 3G GSM data somehow prevents voice calls?

Troubleshooting the issue I noticed the following: "unable to call" problem is here when SIM 1 is used for mobile data. If I set SIM 2 as preferred SIM for mobile data the problem disappears. Before I always used SIM 1 for mobile data and faced the problem quite often. But after I turned mobile data on SIM 1 OFF and switched it ON on SIM 2 the phone is OK. Does anybody have an idea why this may happen? Can it be SIM 1 operator-related issue? Can something be wrong with the SIM card itself? Or there is a problem with the device software or hardware?

Sorry to inundate you with messages but I came across exactly the same situation on a Meizu forum. One user there was also unable to make / receive voice calls on two Meizu phones if he enables mobile data on SIM No. 1.
His first post was:
Hello guys. I am using a Meizu MX5 with 4.5.2.7A firmware. My carrier is Orange Romania and I have a problem.
Whenever I activate my data, especially 4G after about 30-45 minutes or so I cannot make/receive a phone call. When I try to place a call the phone sits in the dialing screen without any response, and when I try to call my phone it says that the client cannot be reached. The other functions of the phone work just fine during this time.
To resolve this issue I have to turn the mobile data off and wait for about 15 minutes, or reset the device.
And finally he found the following solution:
Well after a few days with “testing” it appears that (with your help) I have solved the problem.
When you use two SIM cards on your phone, it would be best if the main SIM (voice + data) would be used in the SIM 2 slot because the problems did not appear again. The 1’st SIM slot appears to be able only to handle calls, without data, at the same time. A bit weird if you ask me, but hey…
I was able to keep my data on for days and could place calls or send SMS just fine without any trouble. Swapped SIM cards in my father’s phone also, and the problem disappeared.
So, it seems that SIM slot No. 1 of my Moto X Play is also unable to provide both voice and data. Any idea how to fix that?

Sirob said:
Moto X Play dual SIM. Both SIMs are original (not cut) nano SIMs from two different GSM operators. The phone is not rooted, flashed / reflashed, everything is stock. Both signals bars are full but I am unable to make outgoing calls. I dial a number but no any sound coming from the earpiece - no tones or other party’s voice, nothing, just absolute silence. After some time I hear short “beep”, the line is automatically disconnected and the phone returns to standby. Same happens for both SIMs. I can temporary fix that problem by the phone OFF / ON and then it is possible to make calls. As far as I understand during OFF / ON the phone signs-out / signs-in into GSM networks and that fixes the problem. But after some time it returns again. I several times cleared cache partition and made one hard reset via Settings > Backup & Reset > Factory Data Reset. But that did not help. I also tried various settings for Preferred Network Type (4G, 3G) but that did not help as well.
Please assist.
Click to expand...
Click to collapse
If you have unlocked bootloader try these codes
fastboot erase modemst1
fastboot erase modemst2
fastboot erase cache
fastboot reboot
hope it works

The problem continues and I have some update: I have two SIMs, one SIM from Operator 1 and another from Operator 2. If I enable data on SIM from Operator 1 everything is OK with voice and data. And if I go to *#*#4636#*#* in Phone info I see “preferred network type LTE/GSM Auto (PRL)”.
But when I enable data on SIM from Operator 2 after some time I cannot make phone calls as I described earlier. And if I go to *#*#4636#*#* in Phone info I see “preferred network type GSM Only”. And I am unable to manually change that “GSM Only” to “LTE/GSM Auto (PRL)”. It always stays “GSM Only” and does not change.
However Operator 2 is similar to Operator 1, it is also a 3G operator.
Why preferred network type for Operator 1 is displayed as “LTE/GSM Auto (PRL)” but for Operator 2 “GSM Only”?
And why for Operator 2 I cannot change “GSM Only” to “LTE/GSM Auto (PRL)”? Why it is stuck to “GSM Only” when data is enabled on SIM from Operator 2?

More updates… Yesterday (when preferred network type of Operator 2 was “GSM Only” and I was unable to change that type) SIM of Operator 2 was in slot no 2. Today I swapped SIM cards – I fitted SIM of Operator 2 in slot no 1 and SIM of Operator 1 in slot no 2. And now all is OK with preferred network type for Operator 2 – it is displayed as “LTE/GSM Auto (PRL)”. So it seems that network type for slot no 2 of Moto X Play dual SIM can only be “GSM Only” and it is impossible to change it.
Any comments?