LG V20 H990N on AT&T - Help - LG V20 Questions & Answers

I'm on AT&T and just bought an unlocked LG V20 H990N (Hong Kong version). I took the phone to AT&T to get a new SIM card and have it set up, but it wouldn't connect to mobile data. The people at the store told me to call customer service since the phone is considered "jailbroken," and they couldn't get it to connect. Customer service referred me to tech support. Tech support told me the phone isn't being recognized by AT&T's network. The phone is being recognized as a 2G phone, which obviously isn't the case. They submitted a request to provision the phone to their network, which could take up to two week. They said I should have 4G access as soon as it's complete. Has this happened to anyone?
From everything I've read online, the phone should have no trouble working. People use it on AT&T just fine so I don't know why this is happening. I can make and receive calls. It says "3G" at the top, but I can't connect to mobile data. I can use it on WI-Fi only. I'm not a tech savvy person. I was hoping to get some insight here. Any information would be helpful.

This phone (hong kong version) has several data networks like GPRS, EDGE, TD-SCDMA, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
Theoretically it should work.
Ask someone at the AT&T store to check if the sim card is OK

PhoneMatrix said:
This phone (hong kong version) has several data networks like GPRS, EDGE, TD-SCDMA, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
Theoretically it should work.
Ask someone at the AT&T store to check if the sim card is OK
Click to expand...
Click to collapse
If the SIM card isn't OK, would I be able to make calls and text like I can now?
Someone mentioned that the phone isn't working because I didn't use my old SIM card. Should this even matter?

I went back to AT&T. They tried different APN configurations and eventually got it to connect to mobile data.
But it's only a 3G connection. How do people get 4G LTE with this phone in the U.S.? This is so frustrating.

Using the Taiwan version H990ds, no issues. 4G LTE on bands 2, 4 and 17. H990N should support the same bands so you should get LTE.

Brother,
Can you advise where you find the root procedures or how you root the V20H990N (Hong Kong Version)? It is because I also has one but I don't know how to root this phone.

Related

[Q] HTC Glacier mod for Australia

Please help! I moved to Australia and cant use any data functions on the Optus network. Optus uses 900/2100mHz for both the 2G and 3G networks. They utilize UMTS and HSPA...the same as T-mobile (the folks I intentionally bought my phones from). I know the Glacier doesnt do data at 900mHz, but I can't even get a connection at 2100mHz. I called HTC customer support and Virgin Mobile Australia. Both companies are stumped and say it should work, but it doesn't. 2 phones, 2 sim cards, no data. Voice and SMS work fine. I added the Virgin Mobile APN per their settings, still nothing. Ideas? Is there a patch required to be Aussie compatible?
Second issue, my wife's phone is very weak when it comes to WiFi, I have seen this is a known issue. Is there a fix now that mailing it back isn't an option?
Please help. I have two great smart phones that aren't so smart right now.
Thanks in advance and Happy Holidays.
Resolved. Don't input the APN settings, just enter the APN name and the phone figures out the rest. No luck with wifi.
jkubacz said:
Please help! I moved to Australia and cant use any data functions on the Optus network. Optus uses 900/2100mHz for both the 2G and 3G networks. They utilize UMTS and HSPA...the same as T-mobile (the folks I intentionally bought my phones from). I know the Glacier doesnt do data at 900mHz, but I can't even get a connection at 2100mHz. I called HTC customer support and Virgin Mobile Australia. Both companies are stumped and say it should work, but it doesn't. 2 phones, 2 sim cards, no data. Voice and SMS work fine. I added the Virgin Mobile APN per their settings, still nothing. Ideas? Is there a patch required to be Aussie compatible?
Second issue, my wife's phone is very weak when it comes to WiFi, I have seen this is a known issue. Is there a fix now that mailing it back isn't an option?
Please help. I have two great smart phones that aren't so smart right now.
Thanks in advance and Happy Holidays.
Resolved. Don't input the APN settings, just enter the APN name and the phone figures out the rest. No luck with wifi.
Click to expand...
Click to collapse
So it is definitely working for you? I wanted to get the HTC Glacier as well (i.e. mytouch 4G). If I got it unlocked, would it work on the 3 Australia network? Specifically, are you getting 2G speeds for data usage on your phone, or are your getting 3G speeds. I want to be able to use it in Australia as well. It's a lot cheaper than some of the other phones available with similar specs in Australia.
Sorry for slow reply. Yes, I am getting 3g speeds on Optus/Virgin network. I do not get MMS though or video calls. I only get internet and SMS. Good luck.
Cool thanks for ur help, managed to get it to work in Australia on 3 (dunno about other networks), although from what I've heard the 3G won't work in rural areas because they use a different frequency.

Simultaneous Voice Call and Data

I have the international Exynos version of the S7 Edge and find cellular data stops working as soon as the phone gets on a voice call. The H+ symbol disappears, browsing stops working etc. At home it is not a problem as the phone is connected to Wifi and voice calls don't effect it, however, out and about, when on cellular data, internet is all lost.
Is it that the s7 doesn't allow simultaenous voice+Data?. I thought that was a problem with Verizon only, GSM (AT&T etc) versions don't have that problem?.
Riz
Have the same version and same issue. Heard that it's not possible to do voice and data together...Not sure how true it is
Got tmobile in the usa.
I have always been able to talk and use the net at the same time.
I do it all the time. Seems like no one knows how to looks stuff up so they always call me.
This worms for me on network 4g and wifi
I have the same problem on my g935f unlocked in europe, so I can confirm it's not an American company issue. I'm regularly using my phone as a hotspot for my ipad and whenever I get a phone call the H+ turns into G (2g) and Internet stops working.
Same here. It was like that since my first Galaxy S, it's a technical limitation of network protocols. At least in Europe.
Sended from my Samsung Galaxy S7 Edge Gold Platinum
Hang on lets rewind.
Are you in the UK.
The 4G network here in the UK is getting there, But its still got along way to come.
One of them is the ability to pass Calls via 4G.
The problem you have in the UK is 4G is data, While H+ etc is for GSM
The UK have not bought the ability to do both yet.
What should happen, is you will be kicked of the 4G network to take the call, Then be re-connected when you finish the call.
This is not device specific, Its Network Region Specific
dave7802 said:
Hang on lets rewind.
Are you in the UK.
The 4G network here in the UK is getting there, But its still got along way to come.
One of them is the ability to pass Calls via 4G.
The problem you have in the UK is 4G is data, While H+ etc is for GSM
The UK have not bought the ability to do both yet.
What should happen, is you will be kicked of the 4G network to take the call, Then be re-connected when you finish the call.
This is not device specific, Its Network Region Specific
Click to expand...
Click to collapse
In Italy too, and here happen the same thing in 2G too.
Sended from my Samsung Galaxy S7 Edge Gold Platinum
The S7E supports VoLTE. It's working on my device. But your carrier has to have it as a service.
Otherwise, you should still have 3G when making a call. If you don't, that doesn't seem right.
VoLTE
In order to make calls and use data at the same time mobile phone networks need to either ...
support VoLTE (Voice over LTE) on the network (Three in the UK is currently rolling this out).
or provide phones with dual antennas, one for voice and one for data (I believe some US networks do this).
the_scotsman said:
The S7E supports VoLTE. It's working on my device. But your carrier has to have it as a service.
Otherwise, you should still have 3G when making a call. If you don't, that doesn't seem right.
Click to expand...
Click to collapse
No 3G, that's the way normal LTE does works. Just like 2G, because if you make a call under 2G, data connection will be turn off.
Sended from my Samsung Galaxy S7 Edge Gold Platinum
Basically it goes down to network support. I never have such problem with 3 UK but work Note 4 on Vodafone sometimes disables data when in call. Sometimes doesn't. Which leads me to believe that it's not just network but also particular towers.
Sent from my SM-G935F using Tapatalk
Quick question about VoLTE: Has anyone tested if VoLTE works on the international version (SM-G935F) on AT&T?
cabreca said:
Quick question about VoLTE: Has anyone tested if VoLTE works on the international version (SM-G935F) on AT&T?
Click to expand...
Click to collapse
I can only tell you that international version supports VoLTE, wherever it'll work on AT&T I don't know.
Sent from my SM-G935F using Tapatalk
Each VoLTE network requires a special firmware. There is no AT&T firmware for international s7 edge (still, it might be custom roms supporting this).
I'm in Europe and with international s7 edge I can use voice and H+ data connection at the same time.

T-Mobile G2 on Verizon LTE - Data working but no SMS/calling

So I got my unlocked T-Mobile [d801] G2 working on Verizon 4G LTE. I just can't make calls or send SMS. Is this because it has to go over CDMA or something?
I'm still using the T-mobile ROM. Vzw LTE works fine - like hangouts phone calls and web sites.
Just curious about this.
I'm going to the UK (London) soon, I don't expect to have 4G but I should get 3G on the 2100MHz band according to "willmyphonework".
Does Verizon require you to call in and register the phone imei?
No I just had to add the APN info and "register" on the network via the phone. I had some issues with the LG G2 due to its poor radio, but that doesn't represent the entire process which is usually quick and easy.

Issues with LTE on Unlocked Sprint Note 4

Hi all,
I've been having a Sprint Galaxy Note 4 that is unlocked. I bought it unlocked already. My mobile service provider is T-Mobile. I have an unlimited plan with them. The issue is that the Note cannot connect to LTE network. The only option available for me to access the internet on the go is the GSM/UMTS option under the network mode settings. Using this option my phone can only connect to a 3g service that is painfully slow. If I try selecting the CDMA or LTE/CDMA option under the network mode settings the Note will not get any service at all as if there was no sim card inside of the phone. Therefore I can only use the GSM/UMTS option. Is there a fix for this or am I stuck with 3g service on this phone? Please ask me questions if you have any that will help me get to a fix. Thanks :fingers-crossed::fingers-crossed::fingers-crossed:
FreakishNoob said:
Hi all,
I've been having a Sprint Galaxy Note 4 that is unlocked. I bought it unlocked already. My mobile service provider is T-Mobile. I have an unlimited plan with them. The issue is that the Note cannot connect to LTE network. The only option available for me to access the internet on the go is the GSM/UMTS option under the network mode settings. Using this option my phone can only connect to a 3g service that is painfully slow. If I try selecting the CDMA or LTE/CDMA option under the network mode settings the Note will not get any service at all as if there was no sim card inside of the phone. Therefore I can only use the GSM/UMTS option. Is there a fix for this or am I stuck with 3g service on this phone? Please ask me questions if you have any that will help me get to a fix. Thanks :fingers-crossed::fingers-crossed::fingers-crossed:
Click to expand...
Click to collapse
I believe the LTE bands in sprint CDMA/VERIZON CDMA are different. they are not compatible with T-mobile because T-mobile required completely different LTE bands and they are locked in sprint phones and they cannot be unlocked.
If you have N910V/N910P You will only get HSPA/HSPA+ 3G/3.5G with T-MOBILE/AT&T network.
My best suggestions will be you can swap your sprint with T-mobile note 4 because N910T has more LTE bands unlocked then any other note 4 models actually more bands then international models too.

LG V20 F800L Korean Variant LTE Network connectivity Issue

Hi, I am not sure if this question is valid or not but i have bough a used LG V20 F800L model a few days back. This phone i am using outside Korea so tried my Airtel sim. Phone accepts the sim (i guess not locked) but only shows 2G/3G not LTE. I even roam like drive-test to see if at any point it caches LTE signal but not. Airtel CC confirmed that they can see in their system that the phone and sim is 4G. i tried going to hidden feature but didn't find any option such as fieldtest to force it to LTE. I dont know if the phone is LG U+ locked or something else but want any help possible to push it to LTE.
Also i notice that this phone takes lot of time to connect to network even on 2G/3G, searches for long time when reboot or insert sim again.
Help me if possible

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