[Q] Getting data on an unlocked T-Mobile G2 to work on AT&T... - G2 Q&A, Help & Troubleshooting

Hi Everyone,
I've searched a number of threads here and can't find a consistent or concise answer for my issue. I have an unlocked T-Mobile LG G2 (801) that I want to use on AT&T. I put my AT&T sim card in the phone and can get calls and texts, but no data. So, what I would like to know is,
a) can I use my AT&T sim card in this phone and get data (this seems totally possible, based on what I've read, but I haven't found the right settings apparently)
b) if I can get data using my AT&T sim card, will it be 4G / LTE, or HSPA?
c) will rooting this phone better my chances of getting this to work, and/or getting faster data?
Thanks in advance for your help!

Have you input att's APN settings?
Sent from my LG-D800 using Tapatalk

Related

[Q] tmobile and unlocked Samsung Tablet

I apologize because I think I may have posted my questionin the wrong place two days ago. I'll see if I can delete it. I hope a few people here can answer me.
My question is that I already have a voice data account with tmobile and SIM card for that account in my Galaxy S Vibrant. Can I remove the SIM from the vibrant and place it in this particular International unlocked P1000 Galaxy TAB to use this P1000 as phone and data just by moving the SIM card? Or do I have to still notify tmobile that I am moving the SIM to this unlocked P10000 device? And will all features of this international version then work....the phone and 3G data with my SIM from the working Vibrant? If I can just move the SIM card is there anything else that I have to know or have to do?
All US carriers consider Samsung Galaxy Tab as a mobile broadband data device and make difficult to walk around this decision.
Since you are going to get a Tab not from T-mobile, it will not have your IMEI number recorded and might treat your Tab as a phone allowing for both voice and data. The issue might be only that you will not get 3G for data because software and hardware do not support unique 1700/2100 AWS frequency bands utilized by T-mobile in the US.
Do you have the phone dialer icon? If not you will need to flash a rom so you have a dial pad.
Thank you both for some answers.
The reason I was looking at this imported version was because I read that this Samsung tab already allowed telephone and since I already had a working 3G and telephone SIM from tmobile I thought this was the way to go. I really wanted this Samsung Tab to do telephone so that was the real reason even looking at this particular item.
No I have not ordered this yet. I wanted to ask the questions BEFORE I paid the money to find out that it will not work in my situation?
So what I am reading from both of you is
1. I probably will not get 3G, and
2. I would need a dialer Icon from somewhere.
Not getting 3G is a "do not purchase this" issue then for me.
Any ideas on the Samsung Tab then? I do NOT mind signing it up with tmobile, I just also wanted it to do bluetooth phone, 3G and then only need to carry this one device.
You guys are great
Thank You
The T-mobile tab can be unlocked. After it is unlocked you can flash it with a European rom and Roto's modem swithcher. You can then run 3G on any carriers sim card and switch to 2g (edge) and phone with T-Mobile using Roto's modem switcher.
Bugman1 said:
The T-mobile tab can be unlocked. After it is unlocked you can flash it with a European rom and Roto's modem switcher. You can then run 3G on any carriers sim card and switch to 2g (edge) and phone with T-Mobile using Roto's modem switcher.
Click to expand...
Click to collapse
WoW. Thanks for that info.
Wonder if you do all this and will hear incoming calls if you are in 3G mode. (i guess this is what the Roto's switcher does, it places it in 2G or 3G). Then if you could/would hear it ring while in 3G, for an incoming call you would then have to switch to the 3G mode with this Roto switcher? Trying to get the call before voice mail kicks in? (what is it, an icon for an on-off type thing of its installed software).
Has anyone actually done any of this?
Yes its been done by many Tab owners. Search the galaxy tab developers section for how to flash roms, modems and kernals. You'll find a treasure trove of information on how to improve the Galaxy tab. The Developers here at XDA are an incredible group of people and most are willing to share their development findings with other Tab owners.
Good Luck.
Bugman1 said:
The T-mobile tab can be unlocked. After it is unlocked you can flash it with a European rom and Roto's modem swithcher. You can then run 3G on any carriers sim card and switch to 2g (edge) and phone with T-Mobile using Roto's modem switcher.
Click to expand...
Click to collapse
Do I understand you correctly saying that T-mobile Tab after flashing can get 3G and voice phone on any carrier Sim?
This would be my "dream". So far I can only get either voice with phone Sim or 3G data without phone capability. BTW, the latter requires Sim with paid data service separate from smartphone. Roto's swither is just a utility flashing either phone modem or 3G data modem.
Would you mind to give more details supporting your post.
P.S. European Tabs have phone voice capability and a dialer out of box. Not extra flashing is needed.
Adapt0r said:
Do I understand you correctly saying that T-mobile Tab after flashing can get 3G and voice phone on any carrier Sim?
Roto's swither is just a utility flashing either phone modem or 3G data modem.
Click to expand...
Click to collapse
Voice + EDGE data OR OR OR 3g data/ no voice NOT NOT NOT both!!
You cannot get 3G data and voice at the same time on the Galaxy Tab. With the modem switcher you can switch between 3G data only and 2G (edge) data and voice.
Until the development community can come up with a method to run 3G data and voice at the same time (if possible) the modem switcher is the best answer to the problem.
Also the the T-Mobile Tab can be unlocked so that any GSM carrier's sim card can be used. This allows you use the sim cards from Simplemobile or any other GSM carrier and not be locked into a T-Mobile sim card.
Anyone live here in MD and want to make some money setting me up doing this thread hack/install for me?
I am a T-Mobile customer and here is set up on my T-Mobile tab:
1.Tab running Roto's JME v4 (European firmware that will allow voice+edge)
2. Roto's Modem Switcher (switch between 3G only or Voice+Edge)
3. My old Vibrant SIM card (Voice+Data)
4. Broke IMEI so i could use my Vibrant SIM to go online and stop getting re-directed to t-mobile site.
So basically i use my tab as a phone now but only getting voice+edge, if i want faster speeds i switch over to 3G using the Modem Switcher. The only way you can get both voice+3g is if you unlock the tab and use AT&T sim, if you want to use T-Mobile sim that option is not available unless a modem comes out that allows both voice+3g.
Hope this helps in making your decision.
adinis78 said:
I am a T-Mobile customer and here is set up on my T-Mobile tab:
1.Tab running Roto's JME v4 (European firmware that will allow voice+edge)
2. Roto's Modem Switcher (switch between 3G only or Voice+Edge)
3. My old Vibrant SIM card (Voice+Data)
4. Broke IMEI so i could use my Vibrant SIM to go online and stop getting re-directed to t-mobile site.
So basically i use my tab as a phone now but only getting voice+edge, if i want faster speeds i switch over to 3G using the Modem Switcher. The only way you can get both voice+3g is if you unlock the tab and use AT&T sim, if you want to use T-Mobile sim that option is not available unless a modem comes out that allows both voice+3g.
Hope this helps in making your decision.
Click to expand...
Click to collapse
Hello and thanks very much,
Seems that you are a match to my scenario. Are you happy with everything the way it works now (voice/2Gdata).
Do you have Caller ID working in any setting/switch?
And to make sure I understand this part. If I am in 3G mode I will NOT ever know of an incoming call by any pop up or beep or anything? The only way to know if some one even tried to call is to go to voice mail from 2G/voice being switched? (se, I am not a voice mail user. i have my Vibrant tmobile voice mail turned off at tmobile.)
So what i read at the top of this thread about having to unlock it is not the case for me?
Do I have to remove anything or add anything else?
Having to do anything at all other than these 4 things you listed for me is not needed?
That's very interesting. How do you "break" IMEI?
And these installs that you did list, is this the exact order to do these things?
And what about the thing where someone said I need a phone icon?
How do you switch to phone mode and dial?
BTW how is it as a phone with Bluetooth device? How is the volume (at both ends). Can you hear okay?
And I think one last question. If you happen to be in a wifi spot and using the tab in wifi mode, does the phone work at all?
Bugman1 said:
You cannot get 3G data and voice at the same time on the Galaxy Tab.
Click to expand...
Click to collapse
No true. If you flash the at&t tab with Roto firmware, and install the bell modem, you can have 3g and voice with an at&t sim card, but again, at&t tab only does this.
Dear noreturn
If you so eager to get it and need help send me PM. I am almost your neighbor.
I would not recommend you breaking (meaning erasing file containing) Imei.
You have two other options
- get At&T tab, unlock it use on Tmobile with Vibrant sim. You will get voice and Edge which is very usable around dc-md-va. 3g will be only on att.
- get European Tab that is unlocked and use it on same way as #1 but no extra firmware flashing is needed.
Unlocking of either Att or Tmobile Tab is easy the same is true about flashing. however it takes more time.
Caller id works as on any phone.
Adapt0r said:
Dear noreturn
If you so eager to get it and need help send me PM. I am almost your neighbor.
I would not recommend you breaking (meaning erasing file containing) Imei.
You have two other options
- get At&T tab, unlock it use on Tmobile with Vibrant sim. You will get voice and Edge which is very usable around dc-md-va. 3g will be only on att.
- get European Tab that is unlocked and use it on same way as #1 but no extra firmware flashing is needed.
Unlocking of either Att or Tmobile Tab is easy the same is true about flashing. however it takes more time.
Caller id works as on any phone.
Click to expand...
Click to collapse
Yes I really do want to get this samsung with voice.
So are you saying get this version of the Samsung tab and use my tmobile vibrant SIM?
Then install that modem switcher thing is all? And I guess I read about a dialer icon or something?
European Tab has everything for voice and Edge but Tmobile tab just cheaper.
Dialer comes installed with European, on Tmobile it appears after flashing.
Hope you understand your options. Modem switcher helps only if you have paid data service or erased your Imei. The last case is legally questionable thats why I would not advise it.
rangercaptain said:
No true. If you flash the at&t tab with Roto firmware, and install the bell modem, you can have 3g and voice with an at&t sim card, but again, at&t tab only does this.
Click to expand...
Click to collapse
True. I should have clarified my response in that I was referring to the T-Mobile version.
I have the Hong Kong version,which has the same 3G frequence with At&t.
I use a At&T sim card and has 3G or H on phone and data works perfect.
For t mobile sim card you will only get edge for voice and data.
If you have any question you can email me.
Jimmy
Its kind of pricy,it cost me almost 700.00,but you don't have to change anything.
It depends on what carrier you use Tmobile 2G, AT&T 3G.
I love the device.you can hold it by one hand and use other hand to surf.
jimmy

[Q] Need help with unlocked Verizon Trophy

I bought a Htc Verizon Trophy and had it factory unlocked by Verizon . Popped in my AT&T sim card and it only gets edge and not 3G . I performed several hard resets and entered the correct APN settings and still no 3G. T-mobile sim card works also but edge is expected. Voice and Internet work great but I was under the impression that it was dual mode and has the AT&T 3G radios and should work on 3G.
Any suggestions or pointers on getting the 3G working?
Thanks
Download "HTC Connection Setup" under the HTC apps in the Market. Select AT&T from the settings and it should help you out.
Also, make sure your AT&T area offers 3G coverage. In my area of Northwest PA, 3G coverage is almost none existent. Basically, if your sim allowed 3G on another phone before, it should be okay (or check AT&T coverage map).
Be careful, I used this program to set my Verizon settings and now I can't get data on Verizon anymore. . Guess that's what I get for playing around.
TheXev said:
Be careful, I used this program to set my Verizon settings and now I can't get data on Verizon anymore. . Guess that's what I get for playing around.
Click to expand...
Click to collapse
Did you restore your trophy to a backup from before you used HTC connection setup? I just did the interop unlock for my trophy as well and I cant get 3G data back. Im hoping restoring the phone to an old backup will fix the problem. Verizon better not have somehow blocked our phones from getting 3G!

VS980 on GSM Question

I bought a VS980 (The Verizon G2) because they come unlocked and it was cheapest. I use Net10. The sim card works within the phone, however it constantly shows that i am roaming, i dont get hspa+ (4g) anymore. Also it shows the sim card icon with a question mark on it. Could i possibly flash AT&T firmware onto it to fix that? I mean, what could i do? What specific things would i need to change?
Thanks a lot!
problem
333severs said:
I bought a VS980 (The Verizon G2) because they come unlocked and it was cheapest. I use Net10. The sim card works within the phone, however it constantly shows that i am roaming, i dont get hspa+ (4g) anymore. Also it shows the sim card icon with a question mark on it. Could i possibly flash AT&T firmware onto it to fix that? I mean, what could i do? What specific things would i need to change?
Thanks a lot!
Click to expand...
Click to collapse
i also face same problem always showing roming icon when i use any gsm sim card on it...
I have the VS980 and it works great on T-Mobile, I get GPRS, EDGE, 3G, HSPA+, and LTE. I never tried it with AT&T or another GSM provider though.
When you use the stock ROM it will have issues like you listed, however if you install another ROM it should work fine. I believe I was running Malladus 4.2.2 at the time which removed the ? icon, and I didn't have to enter any APN info. I also ran it when on a 4.4 AOSP ROM.
so do i have to downgrade the bootloader or what? I'm actually trying to get a verizon vs980 on cricket (aio wireless/at&t network) and can only get H speeds. not bad and i can stream HQ youtube videos without buffering but would like faster. any input?
I met this problem, too. Is there any solution so that I can get my 4G back?
Please help.

Quick Question regarding MMS

Hey S4ers,
So I recently gave my friend my S4 (i337) restored to NB1. She does not have an active data plan, but I figured since I'm giving her the phone, it wouldn't matter too much.
She used to have an unlocked T-Mobile Phone working on AT&T, just running it on the EDGE network.
Anyway long story short, she cannot receive MMS anymore after using this phone. The phone has signal, but does not display E, 2G, 3G, 4G, or LTE. Just the signal bars. So I ordered an unlock code and received it, thinking that if I unlock the SIM that she could get this functionality. I tried the #0111*CODE# method in the dialer and receive an incorrect MMI message. Are there any other methods to unlocking the phone with the code that I have? No root would be ideal, because she has everything all set up on it, but I am open to any suggestions, really. I was wondering if I am going down the correct path in enabling MMS, by unlocking the phone like her old one used to be, or if AT&T needs to be contacted.
FYI, when we set up the phone, we called AT&T to register the new SIM, and provided the IMEI number, is it possible that they turned off any functionality because it was a smart phone without a data plan?
Any help would be appreciated, thanks!
treyvaporizer said:
Hey S4ers,
So I recently gave my friend my S4 (i337) restored to NB1. She does not have an active data plan, but I figured since I'm giving her the phone, it wouldn't matter too much.
She used to have an unlocked T-Mobile Phone working on AT&T, just running it on the EDGE network.
Anyway long story short, she cannot receive MMS anymore after using this phone. The phone has signal, but does not display E, 2G, 3G, 4G, or LTE. Just the signal bars. So I ordered an unlock code and received it, thinking that if I unlock the SIM that she could get this functionality. I tried the #0111*CODE# method in the dialer and receive an incorrect MMI message. Are there any other methods to unlocking the phone with the code that I have? No root would be ideal, because she has everything all set up on it, but I am open to any suggestions, really. I was wondering if I am going down the correct path in enabling MMS, by unlocking the phone like her old one used to be, or if AT&T needs to be contacted.
FYI, when we set up the phone, we called AT&T to register the new SIM, and provided the IMEI number, is it possible that they turned off any functionality because it was a smart phone without a data plan?
Any help would be appreciated, thanks!
Click to expand...
Click to collapse
What carrier SIM is being used in it? Also check your APN settings.
She is on AT&T and the APN is good. We had to get a new micro sim

Vzw LG G2 VS980 Global SIM Card Problem

I have a Vzw LG G2 VS980 that I currently use with Red Pocket on the Vzw network, and I previously used it on Tracfone, also on the Vzw network, and everything worked normally.
I also successfully used it with Red Pocket on the AT&T network as well as with an old Lycamobile legacy SIM, using the T-Mo network.
The problem I'm having is that I can't get cellular data to work using a Piranha Mobile or FreedomPop Global SIM card.
There are no error messages displayed, and I'm able to make voice calls with the Piranha Mobile SIM card. The FreedomPop Global SIM card doesn't come with traditional voice service, but there are bars of service showing.
The APNs are correct:
For Piranha Mobile, I'm using openroamer.com .
For FreedomPop, I'm using freedompop.foggmobile.com .
The Vzw LG G2 VS980 is rooted, but running stock 5.0.2. I rolled it back to stock 4.2.2, but cellular data still wouldn't work with the above SIMs. I also tried a custom ROM, and still nothing.
Can anybody suggest something to try to get cellular data to work with the above SIM cards? I'd greatly appreciate it!
I should also add that I DID enable global roaming in settings, and I did play with all of the System select>>Network mode settings, to no avail.
Also, even if people reading my question don't have an answer, if you could suggest some way to contact someone that could help, I'd be very grateful. Thanks again!
Isn't there any help available for my issue? Thanks.
I sure could use some help in figuring out how to fix this problem. Thanks!
Did you ever figure this out? I am experiencing the same problem
smsc said:
Did you ever figure this out? I am experiencing the same problem
Click to expand...
Click to collapse
Unfortunately, no.
My LG G2 also was difficult to get activated on Vzw MVNOs. I used it on 2 Vzw MVNOs, and both times, it wouldn't activate the SIM card properly. Both MVNOs had to do quite a bit of work to get it to activate properly. There was no issue with the ESN/IEMI, it was just that the hardware wouldn't activate the SIM card properly.
Not only that, my LG G2 VS980 developed dead spots on the touch screen in March, 2017. It's still usable, but the dead spots make it difficult, so it is mostly retired now.
Oh, well...
I'd try getting into your G2's phone "diagnostic" menu (or whatever it's called), and doing a manual band set. That seemed to help me when I put in an AT&T SIM in my vs980.
It could also be that FreedomPop or whomever you're trying to use doesn't support the network bands that the vs980 uses.

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