[Q] No Service - Android Q&A, Help & Troubleshooting

Ever since this morning my phone has had no service. The wifi works but the data doesn't. i put my sim card in my friends phone and it worked so its the phone. I've tried rebooting, clearing data, restoring to an old backup. Im running cm7 7.1.0.1 on the LG G2X
Please help.

Call *#*#4636#*#* select your correct radio band
Accidentally sent from my Google Nexus S using XDA Premium

melvinchng said:
Call *#*#4636#*#* select your correct radio band
Accidentally sent from my Google Nexus S using XDA Premium
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Its already on WCDMA. Isn't that what Tmobile uses?

Related

No data on revolutionRom

So I flashed the revolutionRom rc1 to my phone and it went good, but as soon as I booted back up I would have service and could text and call but I did not have data?? Why did this happen?? I have since flashed back to trigger and I am running smooth.
I am running a vibrant on att network since I am an att subscriber but I picked up a vibrant for free, would this have anything to do with the problem??
Thanks in advance
Sent from my SGH-T959 using XDA Premium App
have you tried checking the apn
u can try install other modem that compatible with ur rom..and set the apn..
yalkowni said:
have you tried checking the apn
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Click to collapse
No, to be honest I didn't even think about it.
But how would I go about changing the apn
Sent from my SGH-T959 using XDA Premium App
settings> wireless and network>mobile networks> access point names
yalkowni said:
settings> wireless and network>mobile networks> access point names
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So it shows two att networks but neither one give me a data connection, wifi works but no 3g or any data for that matter. Is there a way to fix this?
Sent from my SGH-T959 using XDA Premium App

[Q] VZN Galaxy Note 2 not working international

I"m currently in Korea. And since it's global version which is unlocked, i put in the Korean sim card. But it's not working.
It does not catch the signal. I know if i want to use the data, i have to put the APN. But it doesn't even let me use the calls or message.
Head into Settings > More settings > Mobile Networks and make sure that Network Mode is set to Global or GSM/UMTS. If its on LTE/CDMA it won't pick up any signal.
Sent from my SCH-I605 using xda app-developers app
I already checked it.
Alwayzbored1085 said:
Head into Settings > More settings > Mobile Networks and make sure that Network Mode is set to Global or GSM/UMTS. If its on LTE/CDMA it won't pick up any signal.
Sent from my SCH-I605 using xda app-developers app
Click to expand...
Click to collapse
Thanks, but I already checekd it. I had tried both in GSM and Global. But neither does work.. What can I do..?
phk2878 said:
I"m currently in Korea. And since it's global version which is unlocked, i put in the Korean sim card. But it's not working.
It does not catch the signal. I know if i want to use the data, i have to put the APN. But it doesn't even let me use the calls or message.
Click to expand...
Click to collapse
Are you running a custom ROM?
phk2878 said:
Thanks, but I already checekd it. I had tried both in GSM and Global. But neither does work.. What can I do..?
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Click to collapse
Also did you add the APNs needed for Korea? My understanding was to even get calls you had to add the APNs.
Sent from my SCH-I605 using XDA Premium HD app
Okay...
shangrila500 said:
Also did you add the APNs needed for Korea? My understanding was to even get calls you had to add the APNs.
Sent from my SCH-I605 using XDA Premium HD app
Click to expand...
Click to collapse
I was running in custom Roms, but I updated my phone and by odin, i put it back in to stock rom.
So you guys are saying that i have to root it again and put the APNs first?

[Q] How to force Verizon Galaxy S4 to use gsm 2G outside of USA

Hello everybody
My cousin from the USA bring me a Verizon Galaxy S4, I putted a local gsm carrier sim card and it worked fine, I have rooted it and installed hyperdrive on it, but the problem is that it's always on the gsm 3g network which consumes a lot of battery and I can't force it to use the 2g network since this option isn't available unlike the international version of the galaxy s4
Is there any way to force it to use 2g gsm network?
Sent from my SCH-I545 using xda premium
Verizon does not use any form of GSM. You are more likely on a CDMA network.
Sent from my Nexus 7 using Tapatalk 2
xfantome said:
Hello everybody
My cousin from the USA bring me a Verizon Galaxy S4, I putted a local gsm carrier sim card and it worked fine, I have rooted it and installed hyperdrive on it, but the problem is that it's always on the gsm 3g network which consumes a lot of battery and I can't force it to use the 2g network since this option isn't available unlike the international version of the galaxy s4
Is there any way to force it to use 2g gsm network?
Sent from my SCH-I545 using xda premium
Click to expand...
Click to collapse
Maybe install Elixir 2? Maybe choosing network priority if there is any. The guy above has no idea what you are asking about.
swieder711 said:
Verizon does not use any form of GSM. You are more likely on a CDMA network.
Sent from my Nexus 7 using Tapatalk 2
Click to expand...
Click to collapse
Verizon network is cdma but the sch-i545 does support both cdma and gsm and my carrier is gsm
The problem is there is no option to force the phone to use the 2g only like for the i9500
I have installed the liquiezmooth Rop which is Aosp rom and it has this option, then i went back to my nandroid back up and now it use the 2g only !
Sent from my SCH-I545 using xda premium
xfantome said:
Verizon network is cdma but the sch-i545 does support both cdma and gsm and my carrier is gsm
The problem is there is no option to force the phone to use the 2g only like for the i9500
I have installed the liquiezmooth Rop which is Aosp rom and it has this option, then i went back to my nandroid back up and now it use the 2g only !
Sent from my SCH-I545 using xda premium
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Click to collapse
I had no idea that the Vz S4 supported GSM. That's great to know. Thanks.
Sent from my Nexus 7 using Tapatalk 2
swieder711 said:
I had no idea that the Vz S4 supported GSM. That's great to know. Thanks.
Sent from my Nexus 7 using Tapatalk 2
Click to expand...
Click to collapse
Download the app from the store called phone info. Open it and select gsm only. This way you'll force the phone to work on 2g(gsm).
seemcity said:
Download the app from the store called phone info. Open it and select gsm only. This way you'll force the phone to work on 2g(gsm).
Click to expand...
Click to collapse
Where exatcly? Can u do steps, i donwloaded that app but i cant find that option...
Ok guys, I have found the solution; I have installed a free app from the play store called "ServiceMode Shortcut" and it does the job!
Sent from my SCH-I545 using xda premium
You can also access the service menu by dialing *#*#4636#*#* and change the network mode there.
Sent from my Trickdroid-powered HTC One
FangorX said:
You can also access the service menu by dialing *#*#4636#*#* and change the network mode there.
Sent from my Trickdroid-powered HTC One
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Click to collapse
Dialing codes for service menu in Verizon galaxy s4 aren't working
Sent from my SCH-I545 using xda premium
When you download phone info app open it and select device info, then scroll down to Set preferred network type and chose gsm only.
Galaxy S4 Global GSM Network ready
xfantome said:
Dialing codes for service menu in Verizon galaxy s4 aren't working
Sent from my SCH-I545 using xda premium
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Click to collapse
Hi,
My uncle has got me a new Verizon S4 from USA in India. He did not turn it on in USA neither he has activated the phone. He simply got me the box packed phone.
I inserted an Indian GSM SIM card and switched it on, it did recognize the service provider and then asked me couple of questions to select languages and all.
However it does not select a Network Operator. My Network operator is Airtel. It shows a List of Local Network Operators but when i select any of them, it says "Registering on selected network operator" but then it fails.
Can some one help me over come it and how i can use this phone in India?
Try to add apn for your provider and chose to search for the network automatically. Should work.
AedTes
kpthakershy said:
Hi,
My uncle has got me a new Verizon S4 from USA in India. He did not turn it on in USA neither he has activated the phone. He simply got me the box packed phone.
I inserted an Indian GSM SIM card and switched it on, it did recognize the service provider and then asked me couple of questions to select languages and all.
However it does not select a Network Operator. My Network operator is Airtel. It shows a List of Local Network Operators but when i select any of them, it says "Registering on selected network operator" but then it fails.
Can some one help me over come it and how i can use this phone in India?
Click to expand...
Click to collapse
Restart to factory, when ask for language just tap the screen left bottom, right bottom, left bottom, right bottom and vol up.
The phone will activated, left bottom and right bottom mean just above the soft key, vol up is left side button for increase the vol.
Sounds network locked
[Q] Samsung Galaxy S 4 SCH-R970 CDMA TO GSM?
FangorX said:
You can also access the service menu by dialing *#*#4636#*#* and change the network mode there.
Sent from my Trickdroid-powered HTC One
Click to expand...
Click to collapse
hi all, seems that is have a similar problem recently I have booth a Samsung Galaxy S 4 SCH-R970 with carrier US CELLULAR and seems to use CDMA frequence only I was not aware that are difrent type of frequences and the seller wont want to have it back so for me is realy important that I can find a solution here. So it possible to use it in gsm countrys as mine? and if so can some one guide me how I can do it please????
ps I realy need your help
xfantome said:
Dialing codes for service menu in Verizon galaxy s4 aren't working
Sent from my SCH-I545 using xda premium
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Thanks for this useful information. I was going to use it for prepaid gsm which is service Dialing numbers are important. After your information I won't buy it
anaragayevafr said:
Thanks for this useful information. I was going to use it for prepaid gsm which is service Dialing numbers are important. After your information I won't buy it
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Click to collapse
I mean only the Verizon version of galaxy s4 not the regular one
Sent from my SCH-I545 using XDA Premium 4 mobile app
xfantome said:
I mean only the Verizon version of galaxy s4 not the regular one
Sent from my SCH-I545 using XDA Premium 4 mobile app
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Click to collapse
Yeah I know what you mean. I'll buy i337 or M919. Thanks
anaragayevafr said:
Yeah I know what you mean. I'll buy i337 or M919. Thanks
Click to expand...
Click to collapse
Also pls note this problem is only about the hidden system menus, the network operator service menus like hidding phone number, checking call balance. ...
If this answer was helpful pls hit thanks
Sent from my SCH-I545 using XDA Premium 4 mobile app

My Galaxy S4 prefers 3g over 4g LTE

So I installed the Google Edition rom on my GS4, and everything worked fine. Then I had the brilliant idea to call *228 to reprogram my towers, and I lost all 4g connection.
I restored back to my stock rooted rom, and used Phone Info to see if I can get 4g back. When I made Phone Info do LTE only, I got 4g LTE connection, and it passed the ping test, but I switched back to LTE/CDMA auto (PRL) and it goes back to only 3g connection.
Is there anyway to fix this?
Dialing *228 doesnt do anything for 4G. The cell towers are automatically updated via your sim card.
Sent from my SCH-I545 using xda app-developers app
You nuked your sim. Get a new one and don't dial *228.
Sent from my Nexus 7 using Tapatalk HD
najaboy said:
You nuked your sim. Get a new one and don't dial *228.
Sent from my Nexus 7 using Tapatalk HD
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Click to collapse
I have a friend who works for VZW and he said the same thing.
jalaw said:
I have a friend who works for VZW and he said the same thing.
Click to expand...
Click to collapse
Alright, thanks for the info
I helped someone out who couldn't get data after all the troubleshooting we did. I told him to go to the Verizon store and get a new sim. He did and now he gets full data.

Unable to connect to Internet via mobile network

My Amaze is unbranded and rooted, I'm currently using T-MOBILE ICS stock RUU on it.
Whenever I try to connect to the internet it says 'Connection Failed' even though I have turned on the Mobile network. Anybody know a solution to this issue?
koolman1993 said:
My Amaze is unbranded and rooted, I'm currently using T-MOBILE ICS stock RUU on it.
Whenever I try to connect to the internet it says 'Connection Failed' even though I have turned on the Mobile network. Anybody know a solution to this issue?
Click to expand...
Click to collapse
You need to edit your apns. Go to voice dialer, say open apns, then enter the correct one for your carrier. I would look up your carrier name and it's apn settings on Google. Once you enter and set them, you should be good.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
koolman1993 said:
My Amaze is unbranded and rooted, I'm currently using T-MOBILE ICS stock RUU on it.
Whenever I try to connect to the internet it says 'Connection Failed' even though I have turned on the Mobile network. Anybody know a solution to this issue?
Click to expand...
Click to collapse
What's your carrier?
Sent from my HTC_Amaze_4G using XDA Premium 4 mobile app
koolman1993 said:
My Amaze is unbranded and rooted, I'm currently using T-MOBILE ICS stock RUU on it.
Whenever I try to connect to the internet it says 'Connection Failed' even though I have turned on the Mobile network. Anybody know a solution to this issue?
Click to expand...
Click to collapse
SuperAfnan said:
You need to edit your apns. Go to voice dialer, say open apns, then enter the correct one for your carrier. I would look up your carrier name and it's apn settings on Google. Once you enter and set them, you should be good.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
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Click to collapse
vgs929 said:
What's your carrier?
Sent from my HTC_Amaze_4G using XDA Premium 4 mobile app
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Click to collapse
Koolman, try these APNs. They're for your carrier. They should fix the data issue, if they don't, call your carrier.
Your carrier is Warid, right? Enter these APNS. :good:
http://www.unlockit.co.nz/mobilesettings/settings.php?id=776
SuperAfnan said:
Koolman, try these APNs. They're for your carrier. They should fix the data issue, if they don't, call your carrier.
Your carrier is Warid, right? Enter these APNS. :good:
http://www.unlockit.co.nz/mobilesettings/settings.php?id=776
Click to expand...
Click to collapse
Lol.
You have just proven correct my thoughts of you.
You are definitely what some people call, the one up man.
Lol.
Sent from my HTC_Amaze_4G using XDA Premium 4 mobile app
SuperAfnan said:
Koolman, try these APNs. They're for your carrier. They should fix the data issue, if they don't, call your carrier.
Your carrier is Warid, right? Enter these APNS. :good:
http://www.unlockit.co.nz/mobilesettings/settings.php?id=776
Click to expand...
Click to collapse
Thanks man these settings worked for me
hi
hello all can someone help me my amaze is not receving any signals is it hardware fault when i insert sim it show some numbers
mudabir said:
hello all can someone help me my amaze is not receving any signals is it hardware fault when i insert sim it show some numbers
Click to expand...
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Do you have another Sim card you can test?
Sent from my HTC Amaze 4G using Tapatalk 2
yes but no luck i think its hardware problem

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