Database Users

[Q] Can I get 3G+ on ATT Focus?

I've done the whole diagnosis tweaking (release 6) and pretty much all of the other tweaks I've found in these very helpful threads.
But my download and upload speeds are atrocious. 80-150 kbs mostly. I ALWAYS have a 3g signal. I'm located in Boston and before this I had a Tilt2, which data speeds avg. 2000 - 3500 kbs.
Could it be my sim card? it is like 3-4 years old. Just a thought, because really i have no idea.
I am a novice when it comes to this type of tweaking. Any help would be greatly appreciated.
Thx

The specs indicate that the Focus is only capable of HSPA (HSDPA and HSUPA), not HSPA+.
Michael.

ouch, that hurts....8(
Thanks for the quick reply...much appreciated

But your Focus should still be able to match the speed of your Tilt2 which is HSPA as well (but with HSUPA disabled). The real world experience really depends where you are and how many AT&T customers are on the same tower as you. I routinely get about 100kbps speed (download) on my various 3G smart phones as well here in nation's capital.
On the other hand, a lot of ppl who bought the new '4G' HSPA+ AT&T phones (Inspire 4G and Atrix 4G) are also rarely ever get HSPA+ speed at all. Those so called 4G phones also comes with HSUPA disabled.
So, in the end, it is the same crappy AT&T network that limits your connection speed, really doesn't matter what phone you have. I'll be happy if I can reach the full 3G speed (2 to 3 mbps down, 1mbps up) in next few years. And refuse to play the AT&T '4G' game.

You should get a new sim card considering it is 3-4 years old that will affect connectivity to 3g and hspa network..
Boston network shouldn't be a problem.
Samsung Focus At&t USA

I had the same problem when I had an old SIM card in my att fuze when trying to connect to 3g and hspa speed networks...rule of thumb is buy a new SIM when switching to a new phone....it also depends on what network your on...are you at&t?
Samsung Focus At&t USA

Yes, I am currently on Att network. Which I must say was really reliable and fast, up until the last few months...
And I will get a new sim card after work today or early tomorrow. I will let you know if that helps at all.
Thanks peeps 8)

Jcavz said:
I've done the whole diagnosis tweaking (release 6) and pretty much all of the other tweaks I've found in these very helpful threads.
But my download and upload speeds are atrocious. 80-150 kbs mostly. I ALWAYS have a 3g signal. I'm located in Boston and before this I had a Tilt2, which data speeds avg. 2000 - 3500 kbs.
Could it be my sim card? it is like 3-4 years old. Just a thought, because really i have no idea.
I am a novice when it comes to this type of tweaking. Any help would be greatly appreciated.
Thx
Click to expand...
Click to collapse
Samsung Focus unlocked I get 3G+ in EU, if that helps. Seemed pretty fast, but I haven't done a speed test, though.

Usually I unlock my phone as soon as I get it home. With a bunch of unknowns with the Focus, I'm waiting it out right now before I do anything
So My phone is still locked 8)
Thanks for the help

I got 3G+ icoon with Rogers ROM, but not with AT&T ROM. And there's tool which can enable 3G+ icon, so I think it's just a registry issue.

3g+
I also get 3G+ with a Rogers sim card in my Focus, same card in the BB only 3G.

Is it possible to check whether this is just graphic, or there is a real difference in d/u speeds? I am using AT&T Focus in Europe.

You can check real speed with speediest.net to differentiate whether its gfx only or real network.

rrmcco said:
I also get 3G+ with a Rogers sim card in my Focus, same card in the BB only 3G.
Click to expand...
Click to collapse
I'd love to hear what results you get if you test out the download/upload speeds. Like others have said you can use speedtest.net or there's a pretty good app called Bandwidth that I use.
Sent from my SGH-i917 using XDA Windows Phone 7 App

I'm getting a Focus and will unlock it to use on T-Mobile. What's the highest speed I can get? Thanks.

ikingblack said:
I'm getting a Focus and will unlock it to use on T-Mobile. What's the highest speed I can get? Thanks.
Click to expand...
Click to collapse
7.2 mbps download

siralex241 said:
7.2 mbps download
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Click to collapse
tmobile's edge network is that fast?

minori_aoi said:
I got 3G+ icoon with Rogers ROM, but not with AT&T ROM. And there's tool which can enable 3G+ icon, so I think it's just a registry issue.
Click to expand...
Click to collapse
Do you have a link to the tool that enables the 3G+ icon

baritoneguy said:
Do you have a link to the tool that enables the 3G+ icon
Click to expand...
Click to collapse
minori_aoi said:
HKEY_LOCAL_MACHINE\Software\Microsoft\Connectivity\CellularUx\DataConnectionIcon
1XHSDPA = "3G+"
You can basically change it into anything (3 chars max.). And I prefer "H", instead of "3G+".
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Click to collapse
My original post http://forum.xda-developers.com/showpost.php?p=17018543&postcount=6

[Q] N9005 on AT&T and HSPA+ only getting 0.62Mbps down

I just got an n9005 and while I understood it would not be 4G I expected HSPA+ at around 6 or 7Mbps which to be fair is about all my previous SIII 4G phone from AT&T would get, but when I swapped out the card, and entered the APN I can get now get HSPA+, but only at 0.62Mbps down and 0.6Mbps up, which well is not really worth it, I really do not want to switch phones, what a waste, and I understand HSPA+ it should be able to do 6+, yet I'm not seeing any close to that. I'm in NY City so signal is no issue, just can not work out why I have no speed at all on the N9005 unit.
Thanks,
ERIC

How old is your SIMcard? This is usually an Old SIM meets New Phone problem.

egandt said:
I just got an n9005 and while I understood it would not be 4G I expected HSPA+ at around 6 or 7Mbps which to be fair is about all my previous SIII 4G phone from AT&T would get, but when I swapped out the card, and entered the APN I can get now get HSPA+, but only at 0.62Mbps down and 0.6Mbps up, which well is not really worth it, I really do not want to switch phones, what a waste, and I understand HSPA+ it should be able to do 6+, yet I'm not seeing any close to that. I'm in NY City so signal is no issue, just can not work out why I have no speed at all on the N9005 unit.
Thanks,
ERIC
Click to expand...
Click to collapse
What is the HSPA+ speed on your previous S3?
It may be due to the heavy traffic on your network. Try to test on another time (late night) or another location?
You can also complain with you service provider for the issue. Other users may also face with the problem as you.

SIM is only a year old. As for the old phone it gets 3Mbps+ .
I will try late tonight to see what happens.
Thanks,
ERIC

[Q] Verizon LG G2 to T-mobile LTE?

I have read a lot already on this site about my issue just wanted to clear up a few unanswered questions.
I am looking to switch from Verizon to t-mobile because of prices and terrible reception where I'm living in Riverside Ca. So I know that I can simply put in a t-mobile sim and change to the correct gsm settings and get cell reception (correct me if I'm wrong) but what about getting LTE from t-mobile? I have looked to see if the new 700 mhz band covers here and Ventura County Ca. (where I am when I'm not in Riverside) and it does so I should get LTE without having to put in a custom Rom, correct?
I'm a novice when coming to roms (plus a failed attempt) so i would like to avoid them as much as I can. Will do it if I have to though... All about saving $$$$
Thanks for the replies.

@mjmjpfaff
I know what your saying about saving $$$ phones these days are almost the half of a old car/price of a motorcycle.
If your Verizon phone is not simlocked and also has support for the LTE bands which T-Mobile is using then it's possible to get LTE working without the need to buy another phone. If it's mentioned on internet on multiple sites that the G2 supports that LTE band then you can get it without a custom rom.
In my eyes it's possible to have working LTE from T-Mobile on your verizon phone, but to be 100% sure I would contact Verizon support about your question.
I also had many fail attempts with custom roms first but after you get how it works, you can flash anything as smooth as butter:good:
you could also wait for a VS980 G2 user who had the same issue as you but I think that it would take you more time awaiting for a reaction from somebody since not many people are browsing the Q&A section.

wulsic said:
@mjmjpfaff
I know what your saying about saving $$$ phones these days are almost the half of a old car/price of a motorcycle.
If your Verizon phone is not simlocked and also has support for the LTE bands which T-Mobile is using then it's possible to get LTE working without the need to buy another phone. If it's mentioned on internet on multiple sites that the G2 supports that LTE band then you can get it without a custom rom.
In my eyes it's possible to have working LTE from T-Mobile on your verizon phone, but to be 100% sure I would contact Verizon support about your question.
I also had many fail attempts with custom roms first but after you get how it works, you can flash anything as smooth as butter:good:
you could also wait for a VS980 G2 user who had the same issue as you but I think that it would take you more time awaiting for a reaction from somebody since not many people are browsing the Q&A section.
Click to expand...
Click to collapse
I found this on another thread:
"I just switched from a Verizon Galaxy Note 2 to the G2 since all I can get from it with t-mobile is H+ speeds (about 4mbs-6mbs). I inserted the t-mobile sim into the verizon g2 and it automatically switched to global mode and I then went in to edit the apn settings to fast.t-mobile.com. 4G LTE is working just fine on stock rom kitkat update (I'm in L.A. suburb). Speeds range from 15mbs to 30mbs+ depending on where I am in the city. Here are some screenshots"
This guy is pretty much in my area and sounds like he did not do anything other switch in a t-mobile sim...
( http://forum.xda-developers.com/showthread.php?t=2609607&page=4 --> first post on that page)
I will DM him to get some more insight.
Thanks for your reply.

I'm using my droid mini on tmobile and am getting LTE speeds. You should see them if you're in an area where the network was refarmed to 1900mhz
Keep in mind the fastest speeds you will see is 21Mbps unless you swap for the Tmobile Verizon which goes up to 42Mbps and higher.

tiguy99 said:
I'm using my droid mini on tmobile and am getting LTE speeds. You should see them if you're in an area where the network was refarmed to 1900mhz
Keep in mind the fastest speeds you will see is 21Mbps unless you swap for the Tmobile Verizon which goes up to 42Mbps and higher.
Click to expand...
Click to collapse
What area or state are you in if you don't mind me a asking?

Chicago area

Hi I too am using t-mobile on a VS980 and with CM11 and Cloudyg3, I am able to get LTE through their automated APN settings!

G935FD duos (dual SIM) - no LTE on T-Mobile in the US

My S7 Edge G935FD (dual SIM international version) gets only "4G" on T-Mobile in the San Francisco Bay Area, and never "LTE". Is this a "4G vs. LTE" naming issue, or does it lack the band T-Mobile requires for LTE? It also gets "H+" often, in the same location that my old S5 had full bars LTE.
Speed tests with the SpeedSpot app range from 17Mbps to 33Mbps down, and 3.75 to 7.5Mbps up on "4G", but only 5Mbps down and 1Mbps up in H+ areas.
I bought it from tropical_mobile on eBay.

I think 4g and lte are the same..

kvsandeepreddy said:
I think 4g and lte are the same..
Click to expand...
Click to collapse
Just naming issue with international version.

@kvsandeepreddy is right.
LTE means LongTermEvolution which is the so called 4th generation of Mobile Networks. So LTE is 4G
1G = Analog mobile Network, I think
2G = GSM and EDGE
3G = UMTS and HSDPA
4G = LTE

FD version is released for asian countries... back in india we use 4g instead of lte

Poorer connectivity on S7 than S5
kvsandeepreddy said:
FD version is released for asian countries... back in india we use 4g instead of lte
Click to expand...
Click to collapse
Well, that means that the S7 dual-SIM gets poorer reception than my old single-SIM S5:
In the same spot in the building (at my work desk), I'd get full LTE bars on the old S5, but only H or H+ at best on the new S7 Edge dual SIM. In practice this means ~6x slower downloads and ~7x slower uploads. Pretty ****ty.

dandv said:
Well, that means that the S7 dual-SIM gets poorer reception than the old S5:
In the same spot in the building (at my work desk), I'd get full LTE bars on the old S5, but only H or H+ at best on the new S7 Edge dual SIM. In practice this means ~6x slower downloads and ~7x slower uploads. Pretty ****ty.
Click to expand...
Click to collapse
Phone being a dual sim doesnt usually affect the sig al strength.. maybe the inbuilt receiver in s7 edge is defective.. heard some other people complaining about the signal strength too

dandv said:
Well, that means that the S7 dual-SIM gets poorer reception than the old S5:
In the same spot in the building (at my work desk), I'd get full LTE bars on the old S5, but only H or H+ at best on the new S7 Edge dual SIM. In practice this means ~6x slower downloads and ~7x slower uploads. Pretty ****ty.
Click to expand...
Click to collapse
No that's not what it means. The g935fd version is meant to be able to switch to any international firmware version. There are several different modems for each region. You are going to just have to flash different modems in Odin and see which one works best for your region. This does not trip knox or void warranty as long as you do it right because you are flashing official modems. As I said in the other thread you were in, do your research.

Can someone link me to the best modem to used on the dual sim model in the states?

Which modem did you end up using? I am also wondering which version is best in the US.

ChristopherXDA said:
Which modem did you end up using? I am also wondering which version is best in the US.
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Click to collapse
Wondering if you ever solved this issue. I would like to also buy this version and use it on band 12 with TMO.

chatchatchat said:
Wondering if you ever solved this issue. I would like to also buy this version and use it on band 12 with TMO.
Click to expand...
Click to collapse
I'm just using the UAE firmware that the duos came with. It's updated with the June security patch. Only issue I've had is slower than normal download and upload speeds on at&t. It's not that big of a deal, just annoying. I think it has more to do with atts provisioning on their network. I'll post a solution if I figure it out, whether it's a different csc, apn settings or some device setting on my account.

4G is called LTE in USA. If you are getting 4G. That means you are getting LTE.
Cheers.
Sent from my SM-G935F using Tapatalk

thunderroid said:
4G is called LTE in USA. If you are getting 4G. That means you are getting LTE.
Cheers.
Sent from my SM-G935F using Tapatalk
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Click to collapse
Yes, you are correct. However, I should have clarified that my statement is based on connection speed tests not on network symbols in notification bar. My slower speeds are in comparison to other 4g devices being tested in the same location on the same network.

ChristopherXDA said:
Yes, you are correct. However, I should have clarified that my statement is based on connection speed tests not on network symbols in notification bar. My slower speeds are in comparison to other 4g devices being tested in the same location on the same network.
Click to expand...
Click to collapse
Yep. I can confirm the same thing. I have 2 s7 edges. One is a DUOS and the other is AT&T branded. Tested both repeatedly and found that the AT&T branded device is getting way faster speeds than the DUOS. In my particular area the AT&T phone was reaching up to 60 Mbps while the DUOS was only hitting 30-40 Mbps. Very curious on how to fix this since this phone has all the necessary bands to support LTE in the states.

midnight101 said:
Yep. I can confirm the same thing. I have 2 s7 edges. One is a DUOS and the other is AT&T branded. Tested both repeatedly and found that the AT&T branded device is getting way faster speeds than the DUOS. In my particular area the AT&T phone was reaching up to 60 Mbps while the DUOS was only hitting 30-40 Mbps. Very curious on how to fix this since this phone has all the necessary bands to support LTE in the states.
Click to expand...
Click to collapse
At least you're getting that. My speed tests are consistently in the .72 to 5 Mbps range on the DL and 1-7Mbps on the upload, which is basically about half to a third of what my other AT&T devices are getting in the same location at same time.

ChristopherXDA said:
At least you're getting that. My speed tests are consistently in the .72 to 5 Mbps range on the DL and 1-7Mbps on the upload, which is basically about half to a third of what my other AT&T devices are getting in the same location at same time.
Click to expand...
Click to collapse
Wow your right that is abysmal. Have you tried installing LTE Discovery and comparing the two devices? Check to see if they are connecting to the same towers.

midnight101 said:
Yep. I can confirm the same thing. I have 2 s7 edges. One is a DUOS and the other is AT&T branded. Tested both repeatedly and found that the AT&T branded device is getting way faster speeds than the DUOS. In my particular area the AT&T phone was reaching up to 60 Mbps while the DUOS was only hitting 30-40 Mbps. Very curious on how to fix this since this phone has all the necessary bands to support LTE in the states.
Click to expand...
Click to collapse
It's not just the bands. AT&T is known for prioritizing their branded phones vs. BYOD phones. It's done by EMEI ... they have a list of all their branded models in a DB and they get priority. TMO doesn't much care. I tested my Duos yesterday and TMO gave me 59.4/12.8 network transfer. It's as good as my 6P. My AT&T sim is in sim1 and is restricted to 2G which is fine since I need calls and texts only from it since it's a work #.
And it does support most of AT&T's bands except band30 which is really new. 4G everywhere else is LTE here as was said in other responses in this thread. It's most likely AT&T deprioritizing the phone as it's a BYOD.
---------- Post added at 02:54 PM ---------- Previous post was at 02:52 PM ----------
chatchatchat said:
Wondering if you ever solved this issue. I would like to also buy this version and use it on band 12 with TMO.
Click to expand...
Click to collapse
It doesn't have band 12 so I'd save your money. Band 12 is just the deeper penetration 700mhz anyway which around me (SF area) can't be found. My Nexus 6P which has band 12 never connects to anything but band 4 .. ever.

Same crap... If it bothers you flashes the csc

aergern said:
It's not just the bands. AT&T is known for prioritizing their branded phones vs. BYOD phones. It's done by EMEI ... they have a list of all their branded models in a DB and they get priority. TMO doesn't much care. I tested my Duos yesterday and TMO gave me 59.4/12.8 network transfer. It's as good as my 6P. My AT&T sim is in sim1 and is restricted to 2G which is fine since I need calls and texts only from it since it's a work #.
And it does support most of AT&T's bands except band30 which is really new. 4G everywhere else is LTE here as was said in other responses in this thread. It's most likely AT&T deprioritizing the phone as it's a BYOD.
---------- Post added at 02:54 PM ---------- Previous post was at 02:52 PM ----------
It doesn't have band 12 so I'd save your money. Band 12 is just the deeper penetration 700mhz anyway which around me (SF area) can't be found. My Nexus 6P which has band 12 never connects to anything but band 4 .. ever.
Click to expand...
Click to collapse
I noticed this as well with my 6p. Supposedly band 12 was to save us all but my phone prefers band 4. I only got a glimpse of band 12 the other day then the phone switch switched back to band 4 when I toggled wifi on and off.
Sent from my Nexus 6P using Tapatalk

lg v20 unlocked us996 no LTE

Hi everyone I just purchases the device for B&H Photo and I'm not getting LTE on att. I changed all the apn and still no luck. It's strange because when I put my cricket wireless sim I get LTE and band 17 works flawlessly. So I also trying putting my AT&T sim in my LG G5 and LTE works no problem. Any solution would be greatly appreciated.

that's odd. are we 100 percent sure the 996 has all bands for att lte?
Sent from my Samsung Galaxy S7 using Tapatalk

You shouldn't have any problems. I hope you do figure it out. ATT uses bands 2, 4, 17, and 30. The US996 supports 2, 4, and 17. The lack of band 30 I don't think should be that big of a deal as it only appears to be available in congested areas to lighten the load on the other bands. I'd think that 2, 4, and 17 should be available everywhere where ATT is available. I'll have the US996 tomorrow and will try and remember to post my results. I have ATT also.

jayochs said:
that's odd. are we 100 percent sure the 996 has all bands for att lte?
Sent from my Samsung Galaxy S7 using Tapatalk
Click to expand...
Click to collapse
yeah it does has all the bands i was using it with cricket wireless on band 17 but for some odd reason its just not working on att itself and not detecting its tower.

redshorty4 said:
You shouldn't have any problems. I hope you do figure it out. ATT uses bands 2, 4, 17, and 30. The US996 supports 2, 4, and 17. The lack of band 30 I don't think should be that big of a deal as it only appears to be available in congested areas to lighten the load on the other bands. I'd think that 2, 4, and 17 should be available everywhere where ATT is available. I'll have the US996 tomorrow and will try and remember to post my results. I have ATT also.
Click to expand...
Click to collapse
I'll be waiting for your results tomorrow. yeah its strange how its just not connecting to LTE at all.

wonder if att has problems provisioning it on their network like Verizon sometimes does. I'm getting mine Sunday and have verizon so I'm hoping to hell it works fine.
Sent from my Samsung Galaxy S7 using Tapatalk

redshorty4 said:
You shouldn't have any problems. I hope you do figure it out. ATT uses bands 2, 4, 17, and 30. The US996 supports 2, 4, and 17. The lack of band 30 I don't think should be that big of a deal as it only appears to be available in congested areas to lighten the load on the other bands. I'd think that 2, 4, and 17 should be available everywhere where ATT is available. I'll have the US996 tomorrow and will try and remember to post my results. I have ATT also.
Click to expand...
Click to collapse
So any luck on your end for lte?

redshorty4 said:
You shouldn't have any problems. I hope you do figure it out. ATT uses bands 2, 4, 17, and 30. The US996 supports 2, 4, and 17. The lack of band 30 I don't think should be that big of a deal as it only appears to be available in congested areas to lighten the load on the other bands. I'd think that 2, 4, and 17 should be available everywhere where ATT is available. I'll have the US996 tomorrow and will try and remember to post my results. I have ATT also.
Click to expand...
Click to collapse
So any luck for lte on your end?

snaketooth2007 said:
So any luck for lte on your end?
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Click to collapse
Just got back from AT&T because I needed a nano sim. I'm getting LTE no problem. I've seen reports on other phones not getting no LTE when their line isn't configured for it by AT&T. If you happened to have a non-LTE phone prior to this you may need to reach out and have them provision your sim.

redshorty4 said:
Just got back from AT&T because I needed a nano sim. I'm getting LTE no problem. I've seen reports on other phones not getting no LTE when their line isn't configured for it by AT&T. If you happened to have a non-LTE phone prior to this you may need to reach out and have them provision your sim.
Click to expand...
Click to collapse
Yeah I have my line provision for lte since my g5 but for some reason it's just not taking it. Are you getting good reception for band 17?

snaketooth2007 said:
Yeah I have my line provision for lte since my g5 but for some reason it's just not taking it. Are you getting good reception for band 17?
Click to expand...
Click to collapse
Good signal so far. I'm on band 17 at home with the usual 2-3 bars I got with my old Note 3.

redshorty4 said:
Good signal so far. I'm on band 17 at home with the usual 2-3 bars I got with my old Note 3.
Click to expand...
Click to collapse
You think if I got a new sim card it might fix this?

snaketooth2007 said:
You think if I got a new sim card it might fix this?
Click to expand...
Click to collapse
Quite possibly. I went into AT&T and they gave me a new sim for free. Couldn't hurt.

I just got my LG V20 US996 and I have no LTE also. I am in Canada of Fido network. I was getting LTE with the same sim on my LG G3. Any advise?

APN not setup proper or new sim needed.

@rbiter said:
APN not setup proper or new sim needed.
Click to expand...
Click to collapse
What apn do you have?

Hello, sorry, I ask you whether the last update us99610A?
Thankyou..

Hey all...
I just got my V20 unlocked using it on VZWs network. Advance calling is working and I get LTE but I'm having an issue.
My signal sucks. I took the phone to work in DC same places I used my S5 and my speedtest yields a no network message. Apps were taking to 4 hours to down load, google play would lose its connection. My s5 got 12 hours and my v20 us996 died in 4 hours.
I have lte bars but the connection is poor. Calls via 4g advance calling were poor. I had to turn it off.
I was home Sat on Wi-Fi and the battery lastested 24 hours on wifi.
Now I'm in SC on my vacation sitting in a restaurant and can't pull up the internet on 4 bars or vzw lte.
Did a speed test on the same server side by side with my wife's s7. Her ping was 67 and 14 mb of down load and 2.5 mb upload.
My ping was 800 and got 1.5 down load and lost the connection on the upload.
I love everything else about the phone but I can't do this poor reception and quick diying battery becasue of it.
Spoke to Verizon tier two tech support and they say everything is perfect on the phone.
So dont know what to do now.

ymDroid said:
Hey all...
I just got my V20 unlocked using it on VZWs network. Advance calling is working and I get LTE but I'm having an issue.
My signal sucks. I took the phone to work in DC same places I used my S5 and my speedtest yields a no network message. Apps were taking to 4 hours to down load, google play would lose its connection. My s5 got 12 hours and my v20 us996 died in 4 hours.
I have lte bars but the connection is poor. Calls via 4g advance calling were poor. I had to turn it off.
I was home Sat on Wi-Fi and the battery lastested 24 hours on wifi.
Now I'm in SC on my vacation sitting in a restaurant and can't pull up the internet on 4 bars or vzw lte.
Did a speed test on the same server side by side with my wife's s7. Her ping was 67 and 14 mb of down load and 2.5 mb upload.
My ping was 800 and got 1.5 down load and lost the connection on the upload.
I love everything else about the phone but I can't do this poor reception and quick diying battery becasue of it.
Spoke to Verizon tier two tech support and they say everything is perfect on the phone.
So dont know what to do now.
Click to expand...
Click to collapse
Crazy thing is that I'm sottong here on band 5 with 3 bars. Band 5 is an AT&T and I'm unlocked connected to Verizon service.

I'm having the exact same problem with my B&H phone - just showing 4G not LTE. But when I do a speed test, I'm getting 25MB/s down\5MB/up, so not so worried about it. I am having problems with phone calls too, but I use google voice so as long as there's a network connection I'm good. I'm going to run into an AT&T store and talk to someone - I bet there's something they have to do to bless the SIM card. I popped mine out of a Nexus 6P and put it into the V20 hoping it might just work, which it mostly is. It's not just you, in other words!