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[Q] Abroad and stuck no data! HELP!

Hello,
So i've got this nicely unlocked, shiny, G2x. (Running MIUI right now, please don't judge me) Anyways, I'm in Morocco, and am trying to use Maroc Telecom (IAM) which has 3g data (their site even claims HSPA+) and these are the frequencys they use:
GSM 900 / GSM 1800 / UMTS 2100
And copy pasted from the T-Mobile website, the G2x uses:
Quad band GSM (850/900/1800/1900 MHz), Dual band UMTS (1700/2100 MHZ Bands 1 & 4)
To me that looks compatible. Trouble is, i'm getting no data whatsoever, not even 2g, in an area that I know should have at least 3g. I've signed up for the plan correctly, I'm sure of that. And my G2x automatically picked up the APN settings when I first turned it on (and I verified that they are correct) but still not a hint of internet access. This is driving me crazy!! any hints would be greatly appreciated.

Just guessing, but does it think you're roaming. Maybe try enabling data roaming to see if it recognizes the data then.

fiffer1 said:
Just guessing, but does it think you're roaming. Maybe try enabling data roaming to see if it recognizes the data then.
Click to expand...
Click to collapse
It wouldn't be roaming if he bought a sim for that system as he says. Probably APN has a typo or not selected. Have to push radio button so it has a green dot to enable the APN. If that doesn't work then contact carrier to reset data on the account. I have had to do that in the past here in Thailand. Have you also tried turning the phone off and on, or doing airplane mode. Sometimes that is needed once.

Thanks for the responses!
Unfortunately, i've tried and double tried all those things, except getting the carrier to reset the data plan. I'll do that next. Now I just have to get through a bunch of menus in French & Arabic

Are you running Market Enabler. It can screw you up royally if you change sim and it was set to fake at boot. I had that on a Nexus One and had to factory reset the phone to get data working again when I changed sim.

Thanks for the advice. I don't think i'm faking my sim - unless that's something that comes with CM07 and I just don't know about it. Also I tried it on stock before flashing with no different result, so i'm pretty sure that's not it. Went to the office of Maroc Telecom, who replaced my sim (but still no luck) and an INWI sim which i'd previously been able to get 2g coverage on now gives me nothing. It is the weirdest thing and I feel stuck. Has anyone actually gotten a g2x to work on any other network?? is there some sort of Tmobile lock which is preventing me because i'm not using a tmobile sim? (And i'm not talking about the phone being 'locked', obviously i've gotten it unlocked, and can make calls just fine, and did have that short spell of 2g data on INWI) Anyways, i'm about ready to throw this very expensive phone out the window, because what is a smartphone without data?? Thanks anyways for your advice.

same, problem.
How can I solve it?
Maybe try to use other broadband?

I use my G2X in Thailand on TOT3G with no problems. They run 3G on Band 1 (2100/1900). Figure out what band it is. There about fifteen different 3G bands in use. Most people don't realize it but 3G radios use two frequency spectrums at the same time. There is an uplink and downlink. For example 2100 Band 1 uses 2100Mhz downlink and a 1900Mhz uplink. Band 4 is 1700Mhz uplink and 2100Mhz downlink. So the 3G radio in the G2X also transmits on 1900Mhz. But the 1900 Band 2 uses 1800Mhz as an uplink, which the 3G radio in the G2X doesn't support. Most companies that say they are on 2100Mhz are referring to Band 1. If they are running Band 1 the G2X definitely supports it. If you have sim unlocked the phone there is nothing preventing you from getting 3G reception on any carrier in the world.
Download "Network" (https://market.android.com/details?id=de.mangelow.network&feature=search_result) from the Android Market and run it. Scroll down to where it says what type of connection you want and make sure "WCDMA preferred" is selected. If the phone somehow got set to "2G only" you will never get 3G reception until you change it. That happened to me once on a Nexus One and took me a while to figure it out.
CM7 and some other custom roms are known to be having connectivity issues. I suggest you flash back to stock and make sure your apn is correct. If your apn is wrong in any way, the connection will be refused by the cell system.

answer to problem with 3G
engadget[dot]com/2011/04/27/t-mobile-g2x-lacks-quadband-hspa-shatters-dreams/
So, I have working 2G, and 3G(only data, calls are not working)
Rom: WeaponG2x.

Have you tried hard reset (press and hold vol^ and power) till it restarts..
Sent from my LG-P999 using xda premium

MisfitX said:
Have you tried hard reset (press and hold vol^ and power) till it restarts..
Sent from my LG-P999 using xda premium
Click to expand...
Click to collapse
For the what?

[Q] What US Carrier is the International GTab 7.0 plus (P6200) fully compatible with?

Sorry for what is probably a stupid question.
I am thinking of buying an International version of the 7.0 plus (P6200) but I'm having a hard time figuring out which US Carrier, if any, (AT&T, T-Moble or Verizon) is fully compatible with the table's supported frequencies.
Any help in pointing me to the carrier, that will allow the tablet to get 3g data and allow the tablet to make phone calls, would be greatly appreciated.
Also, if you are using a P6200 in the US, I would be interested in what carrier you use, your opinions of the carrier and your opinion of the tablet in general.
Thank you

Over 140 views but no replies.
Does no one know the answer or is the question so simple it is basic knowledge I should already know?

I'm not familar witht eh international model but I can tell you that it won't work with Sprint or Verizon as they are CDMA and not GSM. So that leaves T-Mobile and AT&T and it would depend upon what frequency the GTab7+ recieves, is it tri-band (850, 1800, 1900) or just a single band? AT&T uses 850/1900 MHz and T-Moblile 1900 MHz for 3G service. I would assume that it would be tri-band as are so called "world phones".

TMo also requires UMTS1700.
So almost surely it will NOT get 3G service on TMo. That's why there is a special Tmo variant.
Don't know about AT&T

Thank you for your reply!
Here are the listed frequencies for the tablet
2G Network GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 900 / 1900 / 2100
it appears that it supports all the frequencies for AT&T and T-Mobile. I guess my confusion is I can't tell if the tablet will support 3G or just 2G (wouldn't be worth it if all I could get is 2G).

Entropy512 said:
TMo also requires UMTS1700.
So almost surely it will NOT get 3G service on TMo. That's why there is a special Tmo variant.
Don't know about AT&T
Click to expand...
Click to collapse
Ahh, that is what I was looking for. As much as I dislike them, seems I will need to go with AT&T if I get this tablet.
Thank you very much, both of you!

Sorry I got a little confused between tabs and phones. Verizon uses EV-DO (CDMA based) for 3G and AT&T is HSDPA (GSM based) at 1900 MHz. T-Mobile uses 1700 and 2100 MHz for 3G.

warning, if you plan on using as phone and tab, at&t may want to make sure you are on tab data plan as well an it could be pricey for both.
with that being said Im using this on att with voice and unlimited grandfathered smartphone data. havent heard a word from them. I pray it stays this way. I will fight them for it.
conclusion: best mobile device in the world right now IMHO, until 7.7 comes out.

P6200 and iPhone SIM
Hi all,
just to make sure...
If I get the P6200, can I just pop my iPhone 3gs SIM with unlimited data plan (as long as I don't use it too much)?
I saw someone said they can do that on the 7.7 thread but I wanted to make sure the AT&T iPhone SIM isn't restricted to iPhones somehow.
Thanks
O

I have GT-P620900 from the Philippines and I am my tablet in the US now. I tested using at&t sim card and it works when I tried making a call using sim card (gsm).
Sent from my GT-P6200 using Tapatalk

Hi Neogrin,
With the posted frequencies:
2G Network GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 900 / 1900 / 2100
it will work perfectly for 3G (HSDPA/HSPA+) speeds only on AT&T. You should get 2-4 Mbps downlink, or maybe even more with a good signal on AT&T.
Unfortunately for T-Mobile (whom I also prefer over AT&T), it will only work on their 2G network, at EDGE speeds, which would be about 200 Kbps if you are lucky. Actually, EDGE speeds are good enough for twitter, facebook, and a bit of surfing, but would be frustratingly slow for YouTube or downloading apps.
The Tab 7plus will NOT work on Sprint or Verizon as their CDMA, LTE, and WiMax networks are different technology from GSM and HSDPA and thus not compatible.
Internationally, the 7plus should work on almost any 2G or 3G network, with maybe a few country exceptions here and there.
BTW if you decide to activate your 7plus on AT&T, I can share a bit of experience. I received a Tab 7.7 3G this week, with a similar frequency list to the 7plus. (Unfortunately, it also lacks the "AWS" 1700/2100 band for T-Mobile). I went to an AT&T store today to activate the 7.7 on a month-to-month data plan, of US$25 for 2GB with US$10 per each 1GB of overage. They were not able to assign the data plan in their system to me, because the 7.7 3G is not an AT&T device. The same will be true for your 7plus. What they did to get it to work was to take the IMEI number from one of the other tablets they had on display in the store - making sure it was an HSDPA tablet, and not an LTE one - and used that to activate my account. It took them a while to figure this out, but when they did, it worked. Once the account was activated, and the SIM card was in my 7.7, it found AT&T service and I immediately got a welcome text message. However, data did not yet work - for that I had to do one more thing, which the staff did not know about (but luckily I did).
Go into Settings->Wireless and Networks->Mobile Network Settings
In there is an "Access Point Names" item.
Click on this, and you should see some entries. If it's a new AT&T SIM, it likely says "Cingular 410" or "wap.cingular" or something. This would be correct for a phone, but does not work with tablet data plans, so we need to add the correct one.
Bring up the menu, and there should be a "New APN" option. Select this. In the form which comes up, in the "Name" field, enter "broadband" (one word, no caps, without the quotes). In the "APN" field, do the same - "broadband" one word, no caps, no quotes.
Once you've done this, hit the menu again, and there should be a "Save" option. Choose this, and it will take you back to the list of APNs. Now in the list there should be an APN item called "broadband" which you just created. Press the radio button to the far right of the broadband item. It should turn green.
Give the tablet a few seconds, or a minute, and data should start working!
Hope this helps.
Craig

problems with 4G OPO and Three UK

Ho peeps,
just a quick question. I just moved to 4G but I'm experiencing some funny issues.
On my OPO under "Mobile network settings", I changed Preferred network type from 3G to LTE (recommended) and I got 4G. But, occasionally, all of a sudden I can't make or receive phone calls anymore, even if there is good reception signal. If I change the setting back to 3G, then everything works again. So, I checked the frequencies just in case and the OPO, has we know, has LTE: Bands: 1/3/4/7/17/38/40 and Three UK (my provider) for 4G has 800 MHz (0.8 GHz) and 1800 MHz (1.8 GHz). Granted that I don't know much about frequencies, bands, MHz etc, could anybody confirm that the frequencies that the opo has are fine with the ones that Three has? If that's the case, why the opo occasionally plays up when LTE is selected?
cheers

duratto said:
Ho peeps,
just a quick question. I just moved to 4G but I'm experiencing some funny issues.
On my OPO under "Mobile network settings", I changed Preferred network type from 3G to LTE (recommended) and I got 4G. But, occasionally, all of a sudden I can't make or receive phone calls anymore, even if there is good reception signal. If I change the setting back to 3G, then everything works again. So, I checked the frequencies just in case and the OPO, has we know, has LTE: Bands: 1/3/4/7/17/38/40 and Three UK (my provider) for 4G has 800 MHz (0.8 GHz) and 1800 MHz (1.8 GHz). Granted that I don't know much about frequencies, bands, MHz etc, could anybody confirm that the frequencies that the opo has are fine with the ones that Three has? If that's the case, why the opo occasionally plays up when LTE is selected?
cheers
Click to expand...
Click to collapse
Unless this has changed recently Three uses 2 bands for LTE(4G). One is Band 3 which the OPO supports which they use it big cities and towns and the other is Band 20 which they use in rural areas which the OPO does not support. I am guessing you are in a Band 20 area at the moment and that is why it is not working.

flumpster said:
Unless this has changed recently Three uses 2 bands for LTE(4G). One is Band 3 which the OPO supports which they use it big cities and towns and the other is Band 20 which they use in rural areas which the OPO does not support. I am guessing you are in a Band 20 area at the moment and that is why it is not working.
Click to expand...
Click to collapse
Well the 4g actually works, sorry maybe I wasn't clear, although it is patchy, but the issue is that often when the 4G is on, the phone doesn't allow incoming and outgoing calls even if there is full reception. When I switch off the 4g back to 3g the phone works again.

duratto said:
Well the 4g actually works, sorry maybe I wasn't clear, although it is patchy, but the issue is that often when the 4G is on, the phone doesn't allow incoming and outgoing calls even if there is full reception. When I switch off the 4g back to 3g the phone works again.
Click to expand...
Click to collapse
Here is something I just found on the subject.
Only two UK carriers offers LTE support with those frequencies: EE (supports band 3 & 7) and Three (supports band 3). Other carriers won't be able to support LTE coverage for the OnePlus One as they operate within band 20, which isn't supported by the phone.
Band 3 has limited usability in weaker signal areas, where it has difficulty penetrating built up areas and the interior of buildings, but it can carry more users. Band 7 (only supported by EE) offers wider coverage, as it can reach further, but cannot support as many users.
If you are an EE consumer, you wont experience any LTE problems. However, if you are a Three consumer (as I am), you may experience problems with LTE coverage, when you get outside of the major cities or in weaker signal areas within cities.
However, as Three offers extensive HSPDA+ coverage (or Advanced 3G (DC‑HSDPA) as they call it), you will still be able to get very fast data speeds (up to 42 Mbps). As Three offers 3G under the 2100MHz you will be able to get this speed with the OnePlus One in major cities and regular 3G in the rest of the UK.
Click to expand...
Click to collapse

flumpster said:
Here is something I just found on the subject.
Click to expand...
Click to collapse
thanks, that's useful, although I still wonder what causes that problem as I had it a few times now (can't make/receive calls when on LTE) as I assume the band won't have anything to do with it. I was hoping to find somebody else with that problem on Three, perhaps it is just a Three thing...

I'm on Three and I either get LTE (mainly London where I work) or H+. Either way I've never struggled, as far as I know, to receive phone calls or texts. Worried now though

duratto said:
thanks, that's useful, although I still wonder what causes that problem as I had it a few times now (can't make/receive calls when on LTE) as I assume the band won't have anything to do with it. I was hoping to find somebody else with that problem on Three, perhaps it is just a Three thing...
Click to expand...
Click to collapse
I am having the same problem, have tried different serivce provider sims in my phone and they work fine, just the three sim, which I can't change as I am in a contract with them, and OPO customer service is horrendous! I have tried the sim in another phone and it works fine. I have tried to chnge to 3G only, but all the three sims are 4G enabled, so when I select the Three 3G network, the phone wont register on it, I can only register on the 4G network. I have tried installing CM11, CM12, Paranoid Android, OxygenOS and had no effect, tried safe mode, tried rooting the phone, and still no effect.
Really need a solution to this, but not finding any

To be honest this problem happens at random, at least for me, so it's difficult to find the exact cause. Touch wood I haven't had it for about a month now, but like I said, and from previous experience, it could happen anytime. Read what flumpster has found in the previous post. As for a solution, I'm not sure what to say, other than switch to 3G, wait for the 3g network to pick up and then switch back to LTE, (you might need to repeat this a couple of times if it doesn't work) that fixes it, at least temporarily.
whitestar7 said:
I am having the same problem, have tried different serivce provider sims in my phone and they work fine, just the three sim, which I can't change as I am in a contract with them, and OPO customer service is horrendous! I have tried the sim in another phone and it works fine. I have tried to chnge to 3G only, but all the three sims are 4G enabled, so when I select the Three 3G network, the phone wont register on it, I can only register on the 4G network. I have tried installing CM11, CM12, Paranoid Android, OxygenOS and had no effect, tried safe mode, tried rooting the phone, and still no effect.
Really need a solution to this, but not finding any
Click to expand...
Click to collapse

duratto said:
To be honest this problem happens at random, at least for me, so it's difficult to find the exact cause. Touch wood I haven't had it for about a month now, but like I said, and from previous experience, it could happen anytime. Read what flumpster has found in the previous post. As for a solution, I'm not sure what to say, other than switch to 3G, wait for the 3g network to pick up and then switch back to LTE, (you might need to repeat this a couple of times if it doesn't work) that fixes it, at least temporarily.
Click to expand...
Click to collapse
i can't switch to 3G, when I sleect preferred network as 3G it says there is no service

LG Phoenix 2 (K371) Network mode issue

Hello,
I've got a LG Phoenix 2(K371) phone that I bought from Bestbuy and unlocked through AT&T
The phone is supposed to support the UMTS B1(2100 Mhz) frequency (as stated in specs).
I'm in North Africa right now for a business trip and unfortunately I wasn't able to get any 3G data with the local carrier that uses the UMTS 2100 Mhz frequency, I'm stuck with only 2G while my other phone works just fine.
I tried to change my Network Mode from 4G to 3G but the Network mode menu is missing!!!!!!
My questions are:
1- Does the K371 really supports the UMTS 2100 Mhz frequency ?
2- How can I change my Network mode from 4G/Lte to 3g/WCDMA?
Thanks

Did you ever get this sorted out? I am in Germany and can only get 2G also.

Same here in the UK! Only 2G.
My understanding is that either the official specifications of the phone are wrong - it doesn't support the HSDPA frequency of 2100 MHz, or (most likely) this frequency is disabled in the phone software settings since [email protected] doesn't use this frequency in the US. In any case it is very frustrating: I bought this phone convinced it is going to work while I am travelling in Europe, but obviously it doesn't as 2G data connection is useless.

Same problem in SE Asia. Phone doesn't have the right LTE bands but HSPC should work. Only getting 2G. No option in the hidden menu to change the modem RAT settings that I can see. *#546368#*371#
Anyone have any luck using the k371 overseas?

Same here...
I tried every single method I know in hopes that I could root the phone, but no luck!!!
I believe at&t disabled the said frequencies....
Our only bet is a proper root, and a custom rom..

any update on no UMTS 2100Mhz?

any solutoion on this issue?

I have found a solution. I am using it outside the US. I contacted my cellular provider, gave them the phone name (LG K371) and they sent me a text message with automatic settings for their data network. As soon as I opened it, I got a message like "data settings have been updated" and now it works on 3G and 4G without any issues. You may also be able to find these data configuration settings on your cell service provider's web site.

Seriously???
Please let me know is it AIRTEL service? since i am from INDIA.
we have the same problem in 2 mobiles..

Hmmm
I tried of calling and received setting for MMS , GPRS, INERNET but still i m seeing 2G symbol as E - edge detection
Please help me

Hi this is sainath
am also facing same problem, any one got solutions
please give reply.

tromal said:
Hello,
I've got a LG Phoenix 2(K371) phone that I bought from Bestbuy and unlocked through AT&T
The phone is supposed to support the UMTS B1(2100 Mhz) frequency (as stated in specs).
I'm in North Africa right now for a business trip and unfortunately I wasn't able to get any 3G data with the local carrier that uses the UMTS 2100 Mhz frequency, I'm stuck with only 2G while my other phone works just fine.
I tried to change my Network Mode from 4G to 3G but the Network mode menu is missing!!!!!!
My questions are:
1- Does the K371 really supports the UMTS 2100 Mhz frequency ?
2- How can I change my Network mode from 4G/Lte to 3g/WCDMA?
Thanks
Click to expand...
Click to collapse
Sorry for a late reply, but here's the real scoop about the LG K371 (AT&T)
First, being a "cheap" LG phone, there are very few bands actually included, and they only cover the main (not all) AT&T US frequencies, therefore it's no surprise that doesn't work on all overseas carriers. Again, they are covering only major US bands, and despite what it shows on the box or specs it may not be always true. B1 (2,100Mhz) band has different sub-bands, therefore it doesn't mean that the US B1 will work on an overseas B1, let alone the air-interface (2G/3G/4G/LTE) may not all be supported even if this sub-band exists.
Second, being that it's an AT&T phone, they are knows to load firmware with major restrictions for band selection called RAT Restrictions, which cannot be undone unless you can reflash it with a non-customized firmware, but you can't do that either due to the locked bootloader. A better option is to always go with the un-customized or Tmobile K7/K8 because they always have a lot more bands enabled than the AT&T version. Better yet, go with a Samsung which have more bands even on the AT&T models.
Bottom line, "cheap" phones along with AT&T restrictions will not work everywhere, despite the specs, and there's nothing you can do about it.
And my favorite old adage is "You get what you pay for!" LOL

LTE issues with AT&T?

Hi everyone,
I'm having a couple of issues with my H830 that I'm trying to clear up.
1. Besides having the "Device Unlock" app showing up on your phone, how else can you tell if your phone is actually still carrier locked? I ask because I purchase mine used and it was locked. I did not insert a SIM, ran the unlock app, did a permanent unlock attempt, and it appeared to work. After I completed that, I downgraded, rooted, and updated to the current 20n. I had a few unrelated issues and decided to unroot/lock bootloader/reflash to stock. After I got things back to 100% stock everything, I show the "Device Unlock" app again. However, my SIM is Straight Talk AT&T and its working (mostly, that's the next question). Calls work, messages work, and data (mostly). If I was truely still carrier locked, wouldn't this not happen? Is there a warning I should be getting?
2. I believe I've seen others who have experiences issues when using an H830 with Nougat on AT&T networks, something about Band 17 being broken/disabled. Regarding my current situation from question 1, data is acting weird. If I leave the network mode setting on ""GSM/WCDMA/LTE auto", I seem to get a trickle of data - emails seem to come through, and little bits of websites come through. If I switch to "GSM/WCDMA auto" like I've seen listed in other places, data seems to work as you'd expect other than being on a slower connection. Has anyone else had this problem and resolved it?

sorry, looks like i posted in the wrong board. could a mod maybe move this to "Questions & Answers" board?

As an update, if anyone cares - I've managed to use the phone on multiple different carriers between US, China, and Taiwan. My issue here in the US is due to the network mode - I guess the band AT&T uses around here is not supported by the phone currently.

sqkid89 said:
As an update, if anyone cares - I've managed to use the phone on multiple different carriers between US, China, and Taiwan. My issue here in the US is due to the network mode - I guess the band AT&T uses around here is not supported by the phone currently.
Click to expand...
Click to collapse
If you have an H830 that is an Tmobile Specific G5
ATT version is H820
Tmobile uses this channels or Freq bands
Freq Band
1900 MHz 2
1700/2100 MHz 4 AWS
850 MHz 5
700 MHz 12
600 MHz 71
----------------------------------------------------
ATT uses
LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 9(1800), 17(700), 18(800), 19(800), 20(800), 28(700), 29(700)
38(2600), 39(1900), 40(2300), 41(2500)
the H830 dont have as many bands as ATT needs , so when there is no ATT LTE bands your phone switches to 2g hence slowwww data speed
If you want full speed on ATT network, get an H820
i do not fully get why you want to use a Tmobile headset on the ATT network
Hope this little explanation helped you
Max.

sqkid89 said:
Hi everyone,
I'm having a couple of issues with my H830 that I'm trying to clear up.
If I switch to "GSM/WCDMA auto" like I've seen listed in other places, data seems to work as you'd expect other than being on a slower connection. Has anyone else had this problem and resolved it?
Click to expand...
Click to collapse
So I to am also using a using an "unlocked" T-mobile Lg G5 with an AT&T StraightTalk Sim from the Bring Your Own Phone Package which has been an absolute nightmare. Love the phone but not the data problems connection problems ...even been ridiculed by an iphone x enthusiast that is in your face annoying about the iphones. I wanna root, fix problems, and show him what a real operating system can do . :highfive:
---------- Post added at 08:10 AM ---------- Previous post was at 08:05 AM ----------
maxolini said:
If you have an H830 that is an Tmobile Specific G5
ATT version is H820
Tmobile uses this channels or Freq bands
Freq Band
1900 MHz 2
1700/2100 MHz 4 AWS
850 MHz 5
700 MHz 12
600 MHz 71
----------------------------------------------------
ATT uses
LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 9(1800), 17(700), 18(800), 19(800), 20(800), 28(700), 29(700)
38(2600), 39(1900), 40(2300), 41(2500)
the H830 dont have as many bands as ATT needs , so when there is no ATT LTE bands your phone switches to 2g hence slowwww data speed
If you want full speed on ATT network, get an H820
i do not fully get why you want to use a Tmobile headset on the ATT network
Hope this little explanation helped you
Max.
Click to expand...
Click to collapse
I am using the at&t sim cause straighttalk suggested it and tmobile has horrible coverage is iowa. you cant fine a tmobile dealer for 50 miles in every direction of me.

maxolini said:
If you have an H830 that is an Tmobile Specific G5
If you want full speed on ATT network, get an H820
i do not fully get why you want to use a Tmobile headset on the ATT network
Hope this little explanation helped you
Max.
Click to expand...
Click to collapse
I'm well aware there are differences in bands; my area apparently doesn't use the same 4g bands as ATT. In many areas, TMobile does, so its not an issue. If you want a G5 that could be unlocked, rooted, and run a custom OS without much trouble, H830 is the way to go. I just wanted to make sure others looking to do the same didn't think they got a bad or locked phone.

Anyone in or around new york using it?? Do you get LTE and 3g?

OP, I don't seem to understand your issue or situation. I will assume you experience poor connectivity with your H830 model on AT&T including intermittent LTE drops, losing LTE after calls, 3G/H+ only, and poor service/coverage. AT&T white-lists devices which can use LTE on their network, and while they may connect, they will get dropped to 3G/2G GPRS after a while. These white-listed devices ONLY include AT&T models of phones, and SOME unlocked phones. This is an issue many OnePlus, Nexus, and Huawei users experience with AT&T. Even though device is unlocked, LTE is gone after a while or never loads. Some have suggested to call AT&T or chat via tech support to whitelist your IMEI on their system, which will take a while to reach the correct person. What I ended up doing was switching to T-Mobile from my MVNO TracFone because they told me AT&T claimed my device was not capable of LTE (These included: G4 H811, G5 RS988, and G5 H830). As for band compatibility, it should not be an issue. AT&T supports bands 2, 4, and 12/17 (29 & 30 are rare), they just added band 12 compatibility 1-2 years ago to gain more customers from T-Mobile but it's working against them because of their LTE whitelist.

maxolini said:
If you have an H830 that is an Tmobile Specific G5
ATT version is H820
Tmobile uses this channels or Freq bands
Freq Band
1900 MHz 2
1700/2100 MHz 4 AWS
850 MHz 5
700 MHz 12
600 MHz 71
----------------------------------------------------
ATT uses
LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 9(1800), 17(700), 18(800), 19(800), 20(800), 28(700), 29(700)
38(2600), 39(1900), 40(2300), 41(2500)
the H830 dont have as many bands as ATT needs , so when there is no ATT LTE bands your phone switches to 2g hence slowwww data speed
If you want full speed on ATT network, get an H820
i do not fully get why you want to use a Tmobile headset on the ATT network
Hope this little explanation helped you
Max.
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Thank you for that data, i did not know this. I will be switching back to a Tmobile MVNO next month. I am with Red Pocket so I can choose either carrier.
I was at a restaurant yesterday and my LTE was SUPER slow and I was wondering why it is slow sometimes and fast other times even with full bars (strong signal)

patato21 said:
OP, I don't seem to understand your issue or situation. I will assume you experience poor connectivity with your H830 model on AT&T including intermittent LTE drops, losing LTE after calls, 3G/H+ only, and poor service/coverage. AT&T white-lists devices which can use LTE on their network, and while they may connect, they will get dropped to 3G/2G GPRS after a while. These white-listed devices ONLY include AT&T models of phones, and SOME unlocked phones. This is an issue many OnePlus, Nexus, and Huawei users experience with AT&T. Even though device is unlocked, LTE is gone after a while or never loads. Some have suggested to call AT&T or chat via tech support to whitelist your IMEI on their system, which will take a while to reach the correct person. What I ended up doing was switching to T-Mobile from my MVNO TracFone because they told me AT&T claimed my device was not capable of LTE (These included: G4 H811, G5 RS988, and G5 H830). As for band compatibility, it should not be an issue. AT&T supports bands 2, 4, and 12/17 (29 & 30 are rare), they just added band 12 compatibility 1-2 years ago to gain more customers from T-Mobile but it's working against them because of their LTE whitelist.
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Sorry for the repeat delayed responses, been away and not getting alerts.
I had a few issues to begin with that were hard to determine due to multiple issues/changes/whatever. Normally I try to do one thing at a time, but I messed that up for myself. Between forum searches are real world testing, I was able to figure them out, so putting them all in one place may be helpful to someone else.
1. I had SIM unlocked my phone prior to downgrading and trying out custom roms. When I wasn't getting LTE, I thought I may have screwed something up and returned everything back to stock. In the process, the "SIM Unlock" app came back and I assumed I may have somehow relocked things. Turns out that's not the case, as I've used an AT&T sim from Straight Talk ever since and others for work in both China and Taiwan. I'd love to get rid of some of the LG/T-mobile bloatware, but I fear breaking anything if I remove this app, so I'll just leave well enough alone.
2. LTE - I was getting no data use at all originally. I couldn't confirm if this was due to a defective phone, being SIM locked, or something else. On my business trips overseas, I was able to get LTE, so it appears to be the band/whitelisting issue as you and others have mentioned. In order to semi-solve my issue, I switched my Network Mode (Settings > Connectivity > More > Mobile Networks) to "GSM/WCDMA auto". I don't get LTE speeds, but 4g works well enough for me as-is. If I ever get around to it, I'll just snag a new Straight Talk sim for t-mobile (although I get shivers any time I even think about having to deal with their customer service department)