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no dataconnection. what could it be? Help!

Maybe somebody here knows an answer.
my phone:
Nexus S
CM7
KB3
i cant get any gprs (dataconnection) with my simcard. apn settings are ok
if i use my old simcard of a different provider everything works fine
could the simcard be broken? any ideas? what else could be the problem?
thx c

Doppelgarage said:
Maybe somebody here knows an answer.
my phone:
Nexus S
CM7
KB3
i cant get any gprs (dataconnection) with my simcard. apn settings are ok
if i use my old simcard of a different provider everything works fine
could the simcard be broken? any ideas? what else could be the problem?
thx c
Click to expand...
Click to collapse
anyone!? i do feel i need to be prepared to go to my providers store..... If not i will have to go back to stock first.

Doppelgarage said:
anyone!? i do feel i need to be prepared to go to my providers store..... If not i will have to go back to stock first.
Click to expand...
Click to collapse
Who is your service provider? I had the same problem with Telus in Canada and I managed to resolve it.

Go to Settings>Wireless & Network Settings>Mobile Networks>Access Point Names and open whichever one corresponds to your SP. Make sure the first two fields (Name and APN) are filled out. When I bought mine everything was checked except for these. The information you have to enter will vary based on your service provider, but if you give them a call or check another phone which is also with them you should be able to figure out what to put.

Doppelgarage said:
Maybe somebody here knows an answer.
my phone:
Nexus S
CM7
KB3
i cant get any gprs (dataconnection) with my simcard. apn settings are ok
if i use my old simcard of a different provider everything works fine
could the simcard be broken? any ideas? what else could be the problem?
thx c
Click to expand...
Click to collapse
Try a new simcard. That happened to me, one day i noticed all data stopped working, then withink 30 mins my voice was gone too. Luckily my Nexus came with a new sim so i popped that in and called T-Mo and provisioned the new SIM. Works better than ever now. I recommend everyone use a new sim card in the phone because it really does help with the phone.

adewey234 said:
Try a new simcard. That happened to me, one day i noticed all data stopped working, then withink 30 mins my voice was gone too. Luckily my Nexus came with a new sim so i popped that in and called T-Mo and provisioned the new SIM. Works better than ever now. I recommend everyone use a new sim card in the phone because it really does help with the phone.
Click to expand...
Click to collapse
It is rare for a new sim card to be required. if your phone is stock, you are best to call tech support. Repushing the sim is often enough. Besides here, it's $10 for a new sim and $25 to provison it unless waived by tech support our it's a new activation.
Sent from my Nexus S

[Q] OPO on T-Mobile - 2nd OPO, same problem - network connection issue

Hello all,
Back again.
I'm trying to get my "2nd" OPO to work on T-Mobile USA.
First of all, it is not a SIM issue. I have 2 microSIMs that can be used freely across all T-Mobile enabled devices.
Once I try to connect to T-Mobile, it gives me a "Your SIM card doesn't allow connection to this network".
I tried the 'unlock the basebands/LTE process', got as far as ADB talk, but I cannot execute the su command, so the setprop does not work.
And this is my 2nd phone, a replacement from OPO. 2nd month running already. The 1st one had the same issue, but at the time I did not do research on tinkering with it,
and was 'NAIVELY' believing in OPO's customer 'service'.
Took me 2 weeks just to get 2 basic replies of "tech support", which didn't help since they gave me rather weak tech suggestions - 1st suggestion was reset, 2nd suggestion
was to look at the T-Mobile thread (I cannot connect to network, so how do you expect me to connect to APN?!?) . Then took them 3 weeks to go through the RMA process,
and yet another 2 weeks to send me a replacement(not).
Any assistance appreciated.

Check your imei on the tmo compatibility site. It could be blocked. Dumber things have happened. Double check that the SIM is installed properly. Second replacement and multiple sims seems to point at something you are doing.

Coug76 said:
Check your imei on the tmo compatibility site. It could be blocked. Dumber things have happened. Double check that the SIM is installed properly. Second replacement and multiple sims seems to point at something you are doing.
Click to expand...
Click to collapse
Thank you for your response!
Yes, the IMEI is not recognized on t-mobile. Which is stupid since this is the second one (the 1st one had the same issue too).
Has anyone else gone through this frustrating experience? To have two OPOs whose IMEIs are not recognized is...... well.... $!%#!. :silly:
SIM installations are fine. I have done them multiple times, with the same results.

neov8 said:
Thank you for your response!
Yes, the IMEI is not recognized on t-mobile. Which is stupid since this is the second one (the 1st one had the same issue too).
Has anyone else gone through this frustrating experience? To have two OPOs whose IMEIs are not recognized is...... well.... $!%#!. :silly:
SIM installations are fine. I have done them multiple times, with the same results.
Click to expand...
Click to collapse
Future reference no need to create a new thread to ask the same question as before. You should of just continued your first thread so others would know what you have been going through and what was done to try and fix it. Glad you got it sorted or did you....

playya said:
Future reference no need to create a new thread to ask the same question as before. You should of just continued your first thread so others would know what you have been going through and what was done to try and fix it. Glad you got it sorted or did you....
Click to expand...
Click to collapse
Got it.
Unfortunately no. Second OPO, same issues again. IMEI is not supported either. So, Groundhog Day here.

I'm with you man. I left vzw for T-Mobile and struggled like hell with getting the OPO working properly on it. From loaner phones to multiple sims, they/we tried everything. End result was to leave for at& . The signal is strong, but yet I keep missing calls daily. This beauty is going up on eBay. I just can't take it anymore. Sucks because Dev involvement is Huge here

Register and activate your phone with T-Mobile... I had the same issues for MetroPCS, and that fixed it.
Sent from my Rockin 1+1 on XDA Premium...

Jimmy Rudedog said:
Register and activate your phone with T-Mobile... I had the same issues for MetroPCS, and that fixed it.
Sent from my Rockin 1+1 on XDA Premium...
Click to expand...
Click to collapse
I dont have any issues with network on Tmo, but what do u mean by register and activate ?

What I am saying is, you need to contact your carrier and get your IMEI entered into their system in order for the phone to run all services correctly on your carrier... whether it be T-Mobile or anybody else.
My 1+1 ran most of the services and operated on my SIM card and phone number in my hometown area. But, when I went to another area or town, it would not register with or run on any carrier... NONE! not even roaming like it does at home. I had to go to MetroPCS (on T-Mo network) and get my phone activated onto their system for it to run data, and 4G LTE. By just inserting the SIM card does not automatically sign your phone into the system and you should call or go to a dealer store and get it turned onto your particular carrier to run the network correctly.
Hope this clarifies my statement.

I never had to register or the like with my OPO for t-mobile. Didn't have to with my wife's OPO either.

It's a common enough issue across carriers. Sometime you do have to register the phone, and make sure you have the correct APN settings.
I just gave my daughter my OPO, I had Consumer Cellular (ATT) SIM in it. She dropped in her T-Mobile SIM and off she went, working perfectly. She's been using the phone about 2 weeks now, and in response to your question, I just checked her aPN, since I knew it's been working perfectly for her, only to discover the phone pulled in a MetroPCS APN! It's been working so well, she doesn't want me to change it to the T-Mobile APNs that are in the list.
Here is her APN settings (Calif-San Diego area), MetroPCS
name MetroPCS LTE
apn fast.metropcs.com
MMSC http://metorpcs.mmsmvno.com/mms/wapenc
mcc 310
mnc 260
apn type default,mms,supl
apn protocol IPV4
apn roaming protocol IPV4
mvno type none

Coug76 said:
I never had to register or the like with my OPO for t-mobile. Didn't have to with my wife's OPO either.
Click to expand...
Click to collapse
What APN is you OPO set to?

I had just popped in the SIM card and it did work in my local area. But when I went outta town, my phone wouldn't connect to any services, no roaming either. I use MetroPCS on T-Mobile network, and nothing would run without activation on their system and registering the IMEI. So, results may vary depending on the carrier or area.
Sent from my A0001 using XDA Premium 4 mobile app

registering
I am a frequent visitor to the USA from Canada. Usually with my original Samsung or Nexus rdware from Canadian carriers, but unlocked.
Each US carrier has insisted on registering my IMEI prior to activating a SIM. It seems to the user you can pull a SIM and place in any old device and most times, no problem. But that's not the carrier approved method.
T-MO was very insistent on this. To the point they would not activate a SIM for me with out the device and the IMEI first
Hopefully registering with your carrier solves this. It's a thing and may be the point of issue for you.

4g LTE broken on verizon m8 after travel

Hello,
My HTC m8 on verizon was working great with 4G LTE until I traveled and used an alternative SIM. Now I can only use 3G. My brother is on the same account and we swapped sim cards. The phone was still stuck in 3G. My SIM connected to 4G LTE on his iphone. Verizon reset a bunch of stuff on the network side (never really sure quite what they are doing when I call). I checked the APN and tried most of the options without luck. I'm not sure what the settings should be, so that would seem to be a good place to start. Verizon sent me a new SIM, but I'm hesitant to go through the trouble of swapping it since it doesn't seem to be an issue with the SIM.
Anyone have the correct APN settings? Any other suggestions for troubleshooting?
Someone on reddit had the same issues (xda won't let me post links yet). I contacted them, but I haven't heard back.
Best,
Josh

karunamuni said:
Hello,
My HTC m8 on verizon was working great with 4G LTE until I traveled and used an alternative SIM. Now I can only use 3G. My brother is on the same account and we swapped sim cards. The phone was still stuck in 3G. My SIM connected to 4G LTE on his iphone. Verizon reset a bunch of stuff on the network side (never really sure quite what they are doing when I call). I checked the APN and tried most of the options without luck. I'm not sure what the settings should be, so that would seem to be a good place to start. Verizon sent me a new SIM, but I'm hesitant to go through the trouble of swapping it since it doesn't seem to be an issue with the SIM.
Anyone have the correct APN settings? Any other suggestions for troubleshooting?
Someone on reddit had the same issues (xda won't let me post links yet). I contacted them, but I haven't heard back.
Best,
Josh
Click to expand...
Click to collapse
These are the vzw apn settings. Anything not in the screen shot is either nothing or not set

karunamuni said:
Hello,
My HTC m8 on verizon was working great with 4G LTE until I traveled and used an alternative SIM. Now I can only use 3G. My brother is on the same account and we swapped sim cards. The phone was still stuck in 3G. My SIM connected to 4G LTE on his iphone. Verizon reset a bunch of stuff on the network side (never really sure quite what they are doing when I call). I checked the APN and tried most of the options without luck. I'm not sure what the settings should be, so that would seem to be a good place to start. Verizon sent me a new SIM, but I'm hesitant to go through the trouble of swapping it since it doesn't seem to be an issue with the SIM.
Anyone have the correct APN settings? Any other suggestions for troubleshooting?
Someone on reddit had the same issues (xda won't let me post links yet). I contacted them, but I haven't heard back.
Best,
Josh
Click to expand...
Click to collapse
Anything not in the screen shots are either "nothing" or "not set"

Still Stumped
BladeRunner said:
Anything not in the screen shots are either "nothing" or "not set"
Click to expand...
Click to collapse
Thanks for the APN settings. Everything looks correct on my phone. Any other suggestions?

karunamuni said:
Thanks for the APN settings. Everything looks correct on my phone. Any other suggestions?
Click to expand...
Click to collapse
what preferred network type is it set to? Global? LTE/CDMA only or something else?

I'm assuming you're running the full stock rom. A factory reset would almost certainly clear it up for you. I know it sucks to set up your phone again but I'll bet it works.

AT&T S7 Not Receiving Texts in Canada

I am on holidays in Canada and bought the international passport plan so I can phone and text here... I can send texts to people in Canada and back to the US without any issues - I can't however receive any texts at all.. Tried the different AT&T APNs as well as Telus (since it shows me as connected to that carrier). Creating a Telus APN profile doesn't save, it just disappears immediately.

When you're using the att apn's, under sim status what network are you connected to?
Have you tried your sim card on a different phone? Almost seems like att's at fault here.

peachpuff said:
When you're using the att apn's, under sim status what network are you connected to?
Have you tried your sim card on a different phone? Almost seems like att's at fault here.
Click to expand...
Click to collapse
I'm connected to the Telus network, I should have mentioned that as that's the reason I was trying to use a Telus APN (maybe that doesn't make sense lol). I've been on the phone with AT&T all morning...they're scratching their heads.

Welp, problem solved... I restarted my phone a few times to no avail - turning off the phone for a minute, however, seems to have done the trick!

xaaronfx said:
Welp, problem solved... I restarted my phone a few times to no avail - turning off the phone for a minute, however, seems to have done the trick!
Click to expand...
Click to collapse
Geez the old "did you turn it off and on" trick strikes again, i thought it was a myth.

I thought a phone restart would have been equivalent, I was wrong lol. I fly to Canada pretty frequently and didn't have that issue before

Unlocked T-Mobile Data and Reception Dropping in and Out

I picked up an unlocked T-mobile G5 and I'm using it for AT&T... The rep at the store applied the APN setting for ATT but I noticed after I got a new SIM installed and went home the reception and data connection started dropping in and out.
Basically, when the phone is sleeping and then I wake it starts searching for network then gets reception then get a signal for a couple mins then drops again and searches. Since it's a T-Mobile phone on an ATT network is there certain settings that I need to turn off like VoIP, WIFI calling etc? Any ideas?

Wipe out all existing APNs and start from scratch? Use the NXTGENPHONE APN. I'm using an unlocked T-Mobile H830 LG G5 on AT&T and I have no problems. My sister's Nexus 6 uses the same APN no problems either.
https://www.att.com/esupport/article.html#!/wireless/KM1062162

smartnphone said:
Wipe out all existing APNs and start from scratch? Use the NXTGENPHONE APN. I'm using an unlocked T-Mobile H830 LG G5 on AT&T and I have no problems. My sister's Nexus 6 uses the same APN no problems either.
https://www.att.com/esupport/article.html#!/wireless/KM1062162
Click to expand...
Click to collapse
So I followed your steps.. I wiped all existing APNs and entered the APN setting in the link you provided and used the NXTGENPHONE APN but I couldn't get data but just had reception to make calls. So I changed the name to AT&T and the APN name to phone and I get data and reception but it still drops in and out.
I went to ATT to see what they could suggest but the only thing they offered was maybe a faulty SIM card and switched it out but it's still doing the same thing... Has anyone experienced this? Should I do a factory reset maybe? If I do that, I won't lose SIM unlock right?

sguerra923 said:
So I followed your steps.. I wiped all existing APNs and entered the APN setting in the link you provided and used the NXTGENPHONE APN but I couldn't get data but just had reception to make calls. So I changed the name to AT&T and the APN name to phone and I get data and reception but it still drops in and out.
I went to ATT to see what they could suggest but the only thing they offered was maybe a faulty SIM card and switched it out but it's still doing the same thing... Has anyone experienced this? Should I do a factory reset maybe? If I do that, I won't lose SIM unlock right?
Click to expand...
Click to collapse
I was going to suggest a factory reset as a last resort. You won't lose the sim unlock; it's permanent unlock.
Troubleshooting is the name of the game and you'll have to keep having to try potential solutions until it's fixed.
Hopefully it's not a hardware issue with the radio or you'll have to swap it out and reunlock it all over again.

are you on 10A or 10D?
10D seems to improve the radio... but if you wan root/twrp make sure you do all that on 10A first before upgrading to 10D.
also, have you tested the phone in different areas? or just at your house and immediate area? perhaps it's just an issue in specific locations? what if you drive across town or something?

smartnphone said:
I was going to suggest a factory reset as a last resort. You won't lose the sim unlock; it's permanent unlock.
Troubleshooting is the name of the game and you'll have to keep having to try potential solutions until it's fixed.
Hopefully it's not a hardware issue with the radio or you'll have to swap it out and reunlock it all over again.
Click to expand...
Click to collapse
Performed a factory reset and issue is still there but slightly improved but I need to test it more... Basically, when I wake the phone it searches for network (not all the time but here and there) then locks a signal..

autoprime said:
are you on 10A or 10D?
10D seems to improve the radio... but if you wan root/twrp make sure you do all that on 10A first before upgrading to 10D.
also, have you tested the phone in different areas? or just at your house and immediate area? perhaps it's just an issue in specific locations? what if you drive across town or something?
Click to expand...
Click to collapse
In on 10D.. Yeah I tried it in different areas and driving when I'm art a stoplight I can see it searching for network.. I switched the SIM card and did a factory reset any other suggestions?

Is your Network mode set to GSM/WCDMA/LTE auto? If it's not area specific it might be hardware related.
How did you get the 10D update on AT&T btw?

smartnphone said:
Is your Network mode set to GSM/WCDMA/LTE auto? If it's not area specific it might be hardware related.
How did you get the 10D update on AT&T btw?
Click to expand...
Click to collapse
Yes, my network mode is set to that setting. The person I purchase this phone from had T-Mobile and updated before they sold it to me.

sguerra923 said:
Yes, my network mode is set to that setting. The person I purchase this phone from had T-Mobile and updated before they sold it to me.
Click to expand...
Click to collapse
Last thing to try is Mobile networks>Network operators>Search networks. Maybe manually choosing one might help? Enable Data Roaming?
Could be a hardware issue if not software.

smartnphone said:
Last thing to try is Mobile networks>Network operators>Search networks. Maybe manually choosing one might help? Enable Data Roaming?
Could be a hardware issue if not software.
Click to expand...
Click to collapse
Yeah, I tried that too.. Got back from Tmobile and they said that another person experienced the same issue couple weeks ago and they said that some G5s that are unlocked and used on different networks are still trying to jumping back on the tmobiles phone network hence my phone searching signals off and on...

Just wanted to give another confirmation that the LG-H830 works perfectly on AT&T (H83010D [BL,modem,system], rooted, unlocked). I gave up on Verizon and my fiancé now uses it on AT&T. She loves it!

Geez.. I got scammed. The person looks like they file a insurance claim on the phone so my ESN is blacklisted! Great! Lesson learned the hard way. Any suggestions what I can do? I saw that people are buying bad ESN phone on ebay as long as I post that it's a bad ESN.

OP, I had the exact same problem on T-Mobile after doing a temporary unlock. I took it to a T-mobile store and they tried swapping the SIM but that didn't help so they did a warranty replacement. Two days later I had a new phone and everything works again. I didn't (and won't) try to SIM unlock it again.
Sent from my LG-H830 using XDA-Developers mobile app

I have heard of people getting past blacklist. Think you can pay to fix it.
---------- Post added at 11:14 PM ---------- Previous post was at 11:13 PM ----------
Are you guys not changing the apns xml file????? Or enable roaming and setting rat to global?

jhasty01 said:
I have heard of people getting past blacklist. Think you can pay to fix it.
---------- Post added at 11:14 PM ---------- Previous post was at 11:13 PM ----------
Are you guys not changing the apns xml file????? Or enable roaming and setting rat to global?
Click to expand...
Click to collapse
I did some research online on blacklist repairs but do you or can anyone give me some recommendations on it? Sucks cause even if I get it repaired I wondering if I still will have issues with the reception..
Anyone tried this site? http://www.imeifix.com/

I just tried the sim unlock as well. I'm a tmobile customer so I really didn't have a reason to do it. Just wanted to see if it would unlock.
Well it said it could not be unlocked and I, out of dumb curiosity tried the temporary unlock. It worked and said it is unlocked until August. I think roughly 30 days after I did it.
Well, later that day or the next my phone started doing the same exact thing. Signal dropping and searching. Furthermore though, I woke up to a warm phone today. Same as it gets when doing lots of app updates. I unplugged it from the charger and watched the battery drop 4% in only 15 minutes of standby (screen off, not using the phone).
I just flashed it back to stock and relocked the boot loader and will see if it fixed it. Was running rooted 10d when this happened.
I'm starting to think that sim unlock app is evil or something. I haven't put my sim card back in as of yet but will update if it starts acting up when I do.
Possible explanation?:
I noticed a T-Mobile diagnostic app try to gain root access during the weirdness which I had never seen before. Maybe the sim unlock gains a sudo root to do the unlock but on a rooted phone with a non stock root manager causes the unlock app to endlessly loop trying to gain access and thus cause a warm phone and signal dropouts? Just a hunch but would be interested to see what others think.
*** Ok so quick update, I put my tmobile sim back in and the signal is dropping in and out again. The phone worked fine before I tried the unlock. This is so uncool.
Sent from my LG-H830 using XDA-Developers mobile app

I think I may have isolated the cause. I disabled the device unlock app in app settings and rebooted. Since then I haven't noticed the signal drop out.
EDIT: Yeah, that's a big nope. I'm still experiencing the problem after a total wipe and reflashing using LGUP refurbish mode. It's still dropping in and out, sometimes three times per minute. +1 to never use device unlock app.
I'm on stock unrooted 10d btw.
Oh, and the same SIM card works just fine in my older phones.
Sent from my LG-H830 using XDA-Developers mobile app

For what its worth, Att doesn't use the exact same bands as t Mobile....you might want to research some threads on the Att LG G5.