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AT&T LG G2on Tmobile...no signal! HELP!

Just bought an AT&T Lg G2 and unlocked it for Tmobile/Metropcs use and after setting APN settings I still have no connection at all. Im unable to send a single text, get online or anything. Im sure im doing something simple wrong. Tmobile has 4G in my area so i should get great speeds. Anyone got any ideas?
I've entered APN for both 4G and non 4G

Did you reboot? Probably did but it already, right?

yup I've rebooted multiple times. Went into Networks searched networks it found AT&T Tmobile and MetroPCS and a few others. i've tried AT&T tmobile and Tmobile LTE and Metro PCs...all with no luck

r1nstang said:
Just bought an AT&T Lg G2 and unlocked it for Tmobile/Metropcs use and after setting APN settings I still have no connection at all. Im unable to send a single text, get online or anything. Im sure im doing something simple wrong. Tmobile has 4G in my area so i should get great speeds. Anyone got any ideas?
I've entered APN for both 4G and non 4G
Click to expand...
Click to collapse
I'm afraid that the AT&T D800 does not support AWS/UMTS Bands, which are T-Mobile's main frequencies. I've just pulled this list from Wikipedia:
AT&T - D800
GSM 850/900/1800/1900
UMTS 850/1900/2100
LTE 1900(2)/1700(4)/850(5)/700(17)
T-Mobile - D801
GSM 850/900/1800/1900
UMTS 850/1700/1900/2100
LTE 1900(2)/1700(4)/700(17)
Namely, you are missing UMTS band 1700 which manages about 50% of T-Mobile customers' HSPA+ connection. That being said, the fact that you cannot connect to T-Mobile's LTE band 1700 is weird. Also, UMTS band 1900 should also work.
Perhaps you're in an area with ONLY UMTS 1700 which would not work with the AT&T LG G2. Do you know if there's LTE coverage in your area?

Sacrosaint said:
I'm afraid that the AT&T D800 does not support AWS/UMTS Bands, which are T-Mobile's main frequencies. I've just pulled this list from Wikipedia:
AT&T - D800
GSM 850/900/1800/1900
UMTS 850/1900/2100
LTE 1900(2)/1700(4)/850(5)/700(17)
T-Mobile - D801
GSM 850/900/1800/1900
UMTS 850/1700/1900/2100
LTE 1900(2)/1700(4)/700(17)
Namely, you are missing UMTS band 1700 which manages about 50% of T-Mobile customers' HSPA+ connection. That being said, the fact that you cannot connect to T-Mobile's LTE band 1700 is weird. Also, UMTS band 1900 should also work.
Perhaps you're in an area with ONLY UMTS 1700 which would not work with the AT&T LG G2. Do you know if there's LTE coverage in your area?
Click to expand...
Click to collapse
Yes I am in DFW area which is one of the largest LTE areas Tmobile has. I'm unable to get a connection at all. It says phone is for "emergencies only" I cant make calls, text, or use web.

Sounds like the phone is not SIM unlocked. Need to verify it is SIM unlocked. Also where did you buy it. If the phone was bought from a person it could have been reported stolen or lost and blocked from T-Mobile.
Sent from my VS980 4G using XDA Premium 4 mobile app

craigbailey1986 said:
Sounds like the phone is not SIM unlocked. Need to verify it is SIM unlocked. Also where did you buy it. If the phone was bought from a person it could have been reported stolen or lost and blocked from T-Mobile.
Sent from my VS980 4G using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I bought it off Swappa. Ill try the unlock code again but it said it was unlocked. it doesnt come up with any error when i put the new sim card in anymore.

You're likely in an area that does not have HSPA 1900 coverage; and since you're AT&T variant doesn't support the band, is showing no service. Locking onto LTE wouldn't help as HSPA is required for voice access.
I created a thread in the Q&A asking for ways to enable the missing AWS band on our AT&T / Canadian variant handsets. It was doable on Samsung and am hoping it can be done on our handsets.

turns out MetroPCS had to activate it. you cant just stick a sim into a new phone. they have to activate it on your account. $15 later (yeah i know...its BS) but the Lg G2 is up and running and getting 4G speeds

MetroPCS compatibility

Recently with the T-Mobile merge MetroPCS has supported bringing your own device, such as the nexus 4.
Most devices connected will use both Metro and T-mobiles towers, giving us overall better coverage.
The issue is that the Nexus 4 not supporting LTE by default won't connect to metro's network. So this halfens the merge, back to only T-Mobiles tower.
My question is, does anyone know how to connect the Nexus 4 to both networks? So far none of the LTE enabling mods don't work.
Sent from my Nexus 4 using Tapatalk

That's not possible. The nexus 4 only supports band 4 LTE, which is what t-mobile uses. However, metropcs LTE is band 2, thus making it incompatible with the nexus 4.
http://en.m.wikipedia.org/wiki/T-Mobile_US#Radio_frequency_spectrum_chart
Metropcs does have band 4 LTE, but that might already be integrated with T-Mobile and there'd be no distinction between the two networks.
Sent from my Nexus 4 using XDA Premium 4 mobile app

You shouldnt need to do anything to get your phone working on metropcs gsm except get a metropcs gsm simcard(no the ones in their old phones that had sim cards will not work), change the apn to metropcs lte (fast.metropcs.com) and of course activation. If youre only getting signal on 4g then you might have your phone on lte only. Be sure to enable lte/gsm only that way it can go down to 2g/3g/H. And it techinally runs only under tmobiles towers so if your area has weak tmobile towers thats the problem. you can use everything on the nexus 4 including band 4 lte if its included in your area. Metropcs is slowly becoming another mvno on tmobile. They still have cdma phones but theyre being phased out. Band 2 is most likely referring to their cdma LTE which is a differently system all together. Im on MetroPCS GSM. obviously you cant use cdma bands with this phone but on metropcs gsm you'll be fine. You get hspa+ and lte. Its quick and cheap and works pretty good. I get speeds ranging from 8mbps to 25 max when on lte. I flash phones and unlock phones to metro all the time so feel free to ask me any questions
Sent from my Nexus 4 using xda app-developers app

Bloodykiller86 said:
You shouldnt need to do anything to get your phone working on metropcs gsm except get a metropcs gsm simcard(no the ones in their old phones that had sim cards will not work), change the apn to metropcs lte (fast.metropcs.com) and of course activation. If youre only getting signal on 4g then you might have your phone on lte only. Be sure to enable lte/gsm only that way it can go down to 2g/3g/H. And it techinally runs only under tmobiles towers so if your area has weak tmobile towers thats the problem. you can use everything on the nexus 4 including band 4 lte if its included in your area. Metropcs is slowly becoming another mvno on tmobile. They still have cdma phones but theyre being phased out. Band 2 is most likely referring to their cdma LTE which is a differently system all together. Im on MetroPCS GSM. obviously you cant use cdma bands with this phone but on metropcs gsm you'll be fine. You get hspa+ and lte. Its quick and cheap and works pretty good. I get speeds ranging from 8mbps to 25 max when on lte. I flash phones and unlock phones to metro all the time so feel free to ask me any questions
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Now THAT is a clear, concise explanation of how MetroPCS works with the Nexus 4. THANK YOU!

Verizon xt1060 4.4.4 update works with T-Mobile SIM

I updated my Verizon XT1060 4.4.2 to the 4.4.4 with the posted method in the other thread. [FXZ] Moto X 4.4.4 212.55.26 (XT1060)
http://forum.xda-developers.com/moto-x/general/fxz-moto-x-4-4-4-212-55-26-t2827307
Now it works flawlessly with my T-Mobile sim using the unlocked GSM function.
Previously with 4.4.2 it would say "unknown sim", have LTE, MMS, SMS and voice call switching issues. Even forcing HSPA was inconsistant. Now all's well with my experience.

good to know, just picked up a tmo sim yesterday, but have it in my att note 2 right now
Sent from my XT1060 using Tapatalk

I'll have to try it with my T-Mobile SIM later

After further testing, I had to change preferred network type to LTE, GSM, UMTS. default settings were flaky after driving around town.
Rebooted a few times and airplane mode a few times. Still good for now. Settings stick unlike 4.4.2
Sent from my XT1060 using XDA Free mobile app

I'll test it the next time I'm in an LTE area. The nearest one is 35 miles away. I could do everything on HSPA, but I had issues in LTE areas on 4.4.2.

I wonder if that means the Maxx will work perfect on T-Mobile when it gets triple 4

SymbioticGenius said:
I wonder if that means the Maxx will work perfect on T-Mobile when it gets triple 4
Click to expand...
Click to collapse
The maxx already has 4.4.4, had it before the X. According to several posts over there, LTE is still broken

The default APN on the XT1060 with 4.4.4 is now fast.t-mobile.com, so a manual entry is no longer needed. I still put one in though because I like to customize the APN type settings.
It now correctly falls to HSPA/GSM from LTE when calling out too, instead of locking you to CDMA voice. So, you can use the phone as a phone now, even when connected to LTE.
I'd consider this fixed now.

Did your set preferred network type to global or LTE,GSM,UMTS?
I originally had it at Global, but it started acting like 4.4.2 (problems switching between phone and data) after I started moving around town.
LTE, GSM, UMTS works good but takes a long time to find a signal if I come out of a no signal zone
Sent from my XT1060 using XDA Free mobile app

HJC73734 said:
Did your set preferred network type to global or LTE,GSM,UMTS?
I originally had it at Global, but it started acting like 4.4.2 (problems switching between phone and data) after I started moving around town.
LTE, GSM, UMTS works good but takes a long time to find a signal if I come out of a no signal zone
Sent from my XT1060 using XDA Free mobile app
Click to expand...
Click to collapse
I did set it to LTE/GSM/UMTS, and I added my own APN even though the default (hidden) APN is correct.
Yeah, even on Verizon, the phone is slow to switch networks. If I get dropped from LTE, it'll stay on 3G or 1X even though LTE is available; sometimes I get no data on Verizon for a while. Seems the same with LTE and HSPA switching.
I should add that Global mode doesn't lock to EDGE now, but it is sketchy, as you say.

I've been having calling issues using 4.4.4 when connected to tmobile LTE on my xt1060 dev edition. If I force GPRS, calls work fine, if I switch to LTE/GSM/CDMA auto (prl) I connect to LTE, but then can't make or receive calls. I haven't been able to figure out how to force H+ which seems like it would fix the problem, any ideas?
Also OP mentioned a "unlocked GSM" function, could you elaborate? I search these forums all the time but have never posted anything until now.

might work on AT & T? It may be possible?
Enviado desde mi XT1058 mediante Tapatalk

Think it should work as it is supposed to be a GSM unlocked world phone.
For me 4.4.4 fixed some of the phone/data switching problems and issues with the gsm settings resetting after reboots.
Sent from my XT1060 using XDA Free mobile app

Well Verizon is currently doing testing because I made a complaint against them with the FCC.
I told the Verizon guy that I can connect to T-Mobile LTE on 4.4.4 (though I had issues with 4.4.2), but that I didn't test voice capability very thoroughly while connected to LTE (fallback to GSM may still be sketchy). So, he said he'd get back to me after they've done some testing on this particular issue. I did say that 4.4.4 fixed a lot of the issues I was having though, mainly getting connected to LTE, and having overall GSM/HSPA network issues when the phone was trying to connect to LTE.

Looks like my issue is that I'm not in the so called "refarmed" spectrum area for HSPA+, so I can either get LTE, or EDGE, nothing in between. I've tinkered with the build.prop to no avail. Guess I'll keep tinkering.

RAZRBL8DE said:
Looks like my issue is that I'm not in the so called "refarmed" spectrum area for HSPA+, so I can either get LTE, or EDGE, nothing in between. I've tinkered with the build.prop to no avail. Guess I'll keep tinkering.
Click to expand...
Click to collapse
That's interesting considering the same amplifier for band 4 AWS LTE is the one used for HSPA. Band 4 AWS LTE operates on 1700/2100 MHz, the same frequency as the non-refarmed T-Mobile areas.
I think I'm also in a non-refarmed area, but I do have access to HSPA. The download speeds are just highly limited (0.05Mbps), so there's likely some baseband setting preventing full speeds. The last time I had reliable HSPA+ in my area was on 4.2.2 where I could pull just over 1Mbps down. In better areas, I get 5-15Mbps on HSPA+. These are certainly 1900/2100MHz areas.

Jason.DROID said:
That's interesting considering the same amplifier for band 4 AWS LTE is the one used for HSPA. Band 4 AWS LTE operates on 1700/2100 MHz, the same frequency as the non-refarmed T-Mobile areas.
I think I'm also in a non-refarmed area, but I do have access to HSPA. The download speeds are just highly limited (0.05Mbps), so there's likely some baseband setting preventing full speeds. The last time I had reliable HSPA+ in my area was on 4.2.2 where I could pull just over 1Mbps down. In better areas, I get 5-15Mbps on HSPA+. These are certainly 1900/2100MHz areas.
Click to expand...
Click to collapse
I'm confused. Are you using a Verizon device? The XT1060?
While perhaps the same amplifier is being used (I have no info to either confirm or disprove this statement), the XT1060 (according to all relevant FCC data) lacks the actual physical radio hardware to support UMTS on 1700mhz. Additionally, 0.05Mbps sounds MUCH more like EDGE data than HSPA/HSPA+ data.
I'm very curious now. Would you mind trying out this app:
https://play.google.com/store/apps/details?id=com.roaderster.mrf&hl=en
And seeing which UMTS (WCDMA) band/frequency it says you are using when your phone supposedly says you are using HSPA on 1700mhz?
We already know for a fact that the XT1060 does indeed support UMTS band 2 (1900mhz). I also *thought* we knew for a fact that the XT1060 does NOT support band 4 (1700mhz). LTE, yes, but UMTS, no.
I'm anxious to see what this app has to say...

samwathegreat said:
I'm confused. Are you using a Verizon device? The XT1060?
While perhaps the same amplifier is being used (I have no info to either confirm or disprove this statement), the XT1060 (according to all relevant FCC data) lacks the actual physical radio hardware to support UMTS on 1700mhz. Additionally, 0.05Mbps sounds MUCH more like EDGE data than HSPA/HSPA+ data.
I'm very curious now. Would you mind trying out this app:
https://play.google.com/store/apps/details?id=com.roaderster.mrf&hl=en
And seeing which UMTS (WCDMA) band/frequency it says you are using when your phone supposedly says you are using HSPA on 1700mhz?
We already know for a fact that the XT1060 does indeed support UMTS band 2 (1900mhz). I also *thought* we knew for a fact that the XT1060 does NOT support band 4 (1700mhz). LTE, yes, but UMTS, no.
I'm anxious to see what this app has to say...
Click to expand...
Click to collapse
The Skyworks 77619-12 is a penta-band amplifier that provides bands 1, 2, 4, 5, 8 support for HSPA/LTE and is used in the XT1053 and XT1060, among others. See here: http://www.skyworksinc.com/Product.aspx?ProductID=1024
I don't have root, so I used an older LTE phone without band 4 support, and put in a T-Mobile SIM. There was no signal at all, and T-Mobile says this will be so if a phone doesn't support 1700MHz even if it supports 2100MHz. So, I only deduced from that that I'm in a 1700/2100MHz area rather than a more typical 1900/2100MHz area. The limited down speeds are on HSPA+, but upload speeds are around 1Mbps.

Jason.DROID said:
The Skyworks 77619-12 is a penta-band amplifier that provides bands 1, 2, 4, 5, 8 support for HSPA/LTE and is used in the XT1053 and XT1060, among others. See here: http://www.skyworksinc.com/Product.aspx?ProductID=1024
I don't have root, so I used an older LTE phone without band 4 support, and put in a T-Mobile SIM. There was no signal at all, and T-Mobile says this will be so if a phone doesn't support 1700MHz even if it supports 2100MHz.
Click to expand...
Click to collapse
Thanks for the link. As you already know (no doubt), an amplifier can do nothing if the underlying radio doesn't support the band/mode (UMTS on band 4, in this case). Likely, they use that same amp in all the Moto X variants (except, of course the Sprint variant, which uses band 25 on TDD-LTE).
The fact that the phone won't work unless both 1700 and 2100 are supported by the radio itself makes perfect sense since they are using FDD-LTE (Frequency division - requires 2 seperate bands - one for uplink and downlink).
Did you try the app I suggested? The description doesn't say it requires root...
And finally - you never confirmed: are you using the XT1060, or the XT1053?

samwathegreat said:
Thanks for the link. As you already know (no doubt), an amplifier can do nothing if the underlying radio doesn't support the band/mode (UMTS on band 4, in this case). Likely, they use that same amp in all the Moto X variants.
The fact that the phone won't work unless both 1700 and 2100 are supported by the radio itself makes perfect sense since they are using FDD-LTE (Frequency division - requires 2 seperate bands - one for uplink and downlink).
Did you try the app I suggested? The description doesn't say it requires root...
And finally - you never confirmed: are you using the XT1060, or the XT1053?
Click to expand...
Click to collapse
The app only lists possible bands and converts them to frequencies. It won't tell you what bands the phone is using.
On 4.2.2, my XT1060 reported using bands 1 and 4 for HSPA, which is 1700/2100MHz. I figured it was misreporting.

s5 verizon lte band 3

Hi there. Can someone help me please to get a lte connection on band 3 s5 verizon g900v. It connects on band 3 but i got no signal. Here is a screenshot with details on attachement. What may cause service: limited ?

I'm not sure why you want band 3. I think Verizon uses 4 and 13 and blocks 3. 3 is widely a universal band which I think they purposely block.
To unlock all the bands try this. Go to UE Settings/Settings/Protocol/NAS/Network Control/Band Selection and select LTE all bands.

I want band 3 because im using the phone in europe and the lte band of carrier is 3. If i unlock all lte band its still trying to connect on band 3 on others has no service.
Sent from my SM-G900V using XDA Free mobile app

Then follow the instructions above and select LTE/WCDMA. That will unlock all the bands supported by the Qualcomm chip.

Selected all lte bands. Then network mode lte/wcdma. And still no 4G just H+.
Sent from my SM-G900V using XDA Free mobile app

tenye2003 said:
Selected all lte bands. Then network mode lte/wcdma. And still no 4G just H+.
Click to expand...
Click to collapse
Have you tried selecting LTE/WCDMA? I need to select that one for some networks when I travel.

Tried that too...
Sent from my SM-G900V using XDA Free mobile app

hmm
Ok i put the sim from s5 verizon on another 4G phone and i got signal but on band 7. Now i cant switch to band 7 on s5 verizon so i can get 4G signal... i try to force lte band 7 from service menu but it doesnt stay the asterix just wont show up just on band 3 , 4 or 13. Is there any way to force to go on band 7? The nv values are 594014 for bands 2 3 4 5 7 13 17 20.

OnePlus 5 Testing on Verizon

I received my OP5 today, and decided to try my Verizon SIM just for kicks. I was expecting to connect to LTE on band 2 or 4 (both of which are available in my area), but unfortunately I was not able to connect to LTE at all. I connected to 3G fine and was able to use data, just no LTE. I tried adding the vzwinternet APN, and swapped it in SIM 1 and SIM 2, without luck. Has anyone had luck getting LTE on Verizon?

How is that even possible? It's a GSM only phone, no CDMA...

After an OTA, I got LTE.Speedtest shows about 15mbps for downloading

asecretgate said:
How is that even possible? It's a GSM only phone, no CDMA...
Click to expand...
Click to collapse
It has CDMA. but only one version of it I think, BC0 or something?
mlyy said:
After an OTA, I got LTE.Speedtest shows about 15mbps for downloading
Click to expand...
Click to collapse
Really? What did you to do get it to work? Did you put it in SIM1 or SIM2? Did you add any APN settings? Did you activate it on Verizon or just swap the SIM?

geoff5093 said:
It has CDMA. but only one version of it I think, BC0 or something?
Really? What did you to do get it to work? Did you put it in SIM1 or SIM2? Did you add any APN settings? Did you activate it on Verizon or just swap the SIM?
Click to expand...
Click to collapse
I withdraw my statement. The signal drop to 3G within an hour. And never got LTE again. So as some people suggest that the LTE of Verizon won't work well on Oneplus 5.

Of course you wouldn't have LTE. Verizon use Band 13 which is not supported by the OP5. Here is a list of supported bands. 3G is the best you're going to get, if you want LTE switch to T-Mobile or AT&T they will work fine.
FDD LTE: Band 1/2/3/4/5/7/8/12/17/18/19/20/25/26/28/29/30/66
TDD LTE: Band 38/39/40/41
TD-SCDMA: Band 34/39
UMTS(WCDMA): Band 1/2/4/5/8
CDMA EVDO: BC0
GSM: 850/900/1800/1900 MHz

Kahun said:
Of course you wouldn't have LTE. Verizon use Band 13 which is not supported by the OP5. Here is a list of supported bands. 3G is the best you're going to get, if you want LTE switch to T-Mobile or AT&T they will work fine.
FDD LTE: Band 1/2/3/4/5/7/8/12/17/18/19/20/25/26/28/29/30/66
TDD LTE: Band 38/39/40/41
TD-SCDMA: Band 34/39
UMTS(WCDMA): Band 1/2/4/5/8
CDMA EVDO: BC0
GSM: 850/900/1800/1900 MHz
Click to expand...
Click to collapse
Verizon doesn't only use band 13. As I mentioned in my earlier post, I live in an area where Verizon has LTE bands 2 and 4, yet neither work on the OP5 for some reason.

Been using it now for a couple days. Get decent service with Verizon. Switches between LTE and 3G. I also have a tmobs SIM. Been using tmobs for data which is mostly LTE. So between both service providers, I will hopefully have good service everywhere.
Sent from my ONEPLUS A5000 using Tapatalk

geoff5093 said:
Verizon doesn't only use band 13. As I mentioned in my earlier post, I live in an area where Verizon has LTE bands 2 and 4, yet neither work on the OP5 for some reason.
Click to expand...
Click to collapse
I think band 13 is the main one they use. You might get LTE but it will be slow

Kahun said:
I think band 13 is the main one they use. You might get LTE but it will be slow
Click to expand...
Click to collapse
Band 2 and 4 are what they use for speed and capacity, you can easily get 100Mbps+ on either of these bands in many markets, but again you don't get any LTE on Verizon for some reason.
Sent from my ONEPLUS A5000 using Tapatalk

geoff5093 said:
Verizon doesn't only use band 13. As I mentioned in my earlier post, I live in an area where Verizon has LTE bands 2 and 4, yet neither work on the OP5 for some reason.
Click to expand...
Click to collapse
Probably cos there's no apn settings for that connection so the phone doesn't know how to access it, see if you can find out the apn settings for LTE on Verizon and add a new apn entry

djsubterrain said:
Probably cos there's no apn settings for that connection so the phone doesn't know how to access it, see if you can find out the apn settings for LTE on Verizon and add a new apn entry
Click to expand...
Click to collapse
As I mentioned in my first post, I did try manually setting the apn to vzwinternet and internet without any luck
Sent from my ONEPLUS A5000 using Tapatalk

So am I reading this correctly? The OnePlus 5 doesn't work on Verizon? That's a pretty important little piece of information.

subbed

It is very well known that OP phones don't play nicely with CDMA carriers....why is this even a discussion?