LTE and 4G (ATT H810) issues - G4 Q&A, Help & Troubleshooting

Anyone else on the ATT G4 having problems with LTE connectivity? In areas where I'd usually get 5 bars of LTE service, a majority of the time I get 2 or 3 bars of Edge service. Putting it into airplane mode and back out doesn't help, turning mobile data on and off doesn't help, and neither does removing the SIM card (and reseting the phone in the process). It seems to come and go whenever it wants to.
Sent from my LG-H810 using Tapatalk

All I can guess is, it's probably just the ATT network itself. They did some upgrades around here a while once Cspire started hyping their fiber optic network and I noticed on my older phone that in areas where I used to get 3G I was stuck getting edge. Even with my G4 I can park in perfect view of a known ATT tower and it'll hit 4G and within a minute be down to 3G - same with strength. Get 5 bars, don't move, no data, no call, and it'll drop down to no bars but still connected and bounce around, usually settling at 2 or 3. Even though ATT says they have full LTE out here I rarely actually see the LTE logo display in the status bar.
I've been using OpenSignal to try to map out coverage areas though, been pretty handy in finding towers and chasing stronger signal

Hi sir
I m using lg g4 h810 AT&T it was working well one day i put a memory card in it signal disappear never came go to software and hardware experts but nobody has solved my problem all other functions of cell phone working properly

Related

[Q] 3g everythere but at home????

I have a problem with my Tmobile g2 running 2.2, it is all stock no modifications whatsoever other than handcent and fancy widget.
The problem is I can not connect to 3g or hsdpa network when I am at home. By this I mean the cell tower that provides service when I am at home. I have txt and calling capabilites but I have no data whatsoever. I have to manually switch to 2g or edge to check email or use the browser. I have called tmobile and they keep telling me that the problem is with my phone, however when I am 2 or 3 miles from my house and it goes to any other tower on the planet everything works fine.
I have searched the g2 forum here but could find no answers. I apologize in advance if this has been indeed covered or discussed to death and I have just failed to find it.
I did find the *#*#4636#*#* option and when it is on 2g I can run a ping test and it finds the server just fine, but on 3g it always fails to connect. Again this only occurs of course when I am sitting at home!
Thanks to anyone who can shed some light on this or point me in the right direction because leaving it up to tmobile has proven to be fruitless.
It might also be worth mentioning that i replaced the sim card today as well, this too had no effect on this phenomenon.....
My mom's nexus s has the same problem. Only difference is that when i walk out the door i get 3g. Once i walk back in, I get edge...... I think its might be just tmobile frequencies poor ability to pentrate walls.
Sounds like a problem with the 3G network in your area, or just a weak signal there.
I know its not the signal strength, I always have full bars at home Its something to do with the network....
DefiantMenace said:
I know its not the signal strength, I always have full bars at home Its something to do with the network....
Click to expand...
Click to collapse
Full bars on 3G or 2G ? If you have full bars on 3G then it sounds like a network problem.
I have the exact same problem, but my building is probably over 100 years old with 300 coats of lead paint on it. It depends on your building. Signals can bounce off of mirrors for example and other materials. The more material the signal has to go through, the more attenuation happens.
I have a similar problem, my G2 can't maintain a consistent connection, I will go from 4 bars of HSPA+ to 4 bars of Edge to nothing (lost connection to network) and it will jump around wildly between these three states (every few minutes). My wife's MyTouch 4G doesn't do this, my G1 did not do this, our kids (dumb) phones have consistent connections.
I know it's some interaction between my phone and the TMO network, I'd say it was a defective phone except the only place it happens is inside my house.
I wish that TMO offered a microcell.
There is no reception problem, I have had the phone working here for awhile and it always has full bars, like I said I can hop in the car and drive a couple miles and it works just fine. Tmobile finally got back to me today and said they are having their Engineers troubleshoot the tower that provides service when I am home. I hope they get this fixed soon, they said 72 hours.......
It's that anti-cellphonereception chemical they put into paint!!

4g/3g data connection

It seems whenever I don't have a 4g data connection, I'm not getting any data connection. Anyone else have this problem? When I'm in builldings I never get a data connection. Even when I'm outside I rarely get data connection unless it's a 4g spot. I know someone with a GN and side by side, he gets a connection at work while I have gray bars. Is this prevelant among most of you all? I'm on Verizon if that makes a difference.
Yes, I have this issue as well when I am at work but only when I have wifi turned on. With wifi on I get no 4g connection inside the building and the phone won't drop down to 3g, just gives me gray bars and no data. Manually switching from LTE/CDMA to CDMA restores my 3g data connection. Turning wifi off enables the LTE data connection. I assume it's trying to use the building's wifi network that I am not authenticated to for some reason. It's quite annoying and seems to be draining my battery.
My 4g reception sucks. I am rather disappointed. I canceled my ATT account and paid the ETF to switch to verizon for the GN. I am in plano tx which is in the Verizon LTE area and i dont get any signal except in a few spots on the highway. I work in Richardson, which is also in the LTE area, and i dont even have 3g in the building. I dont have any signal when i go deeper into the building away from the windows. I am running stock 4.0.2. I hope this gets better. I am already regretting dropping ATT.
jason.hamilton said:
My 4g reception sucks. I am rather disappointed. I canceled my ATT account and paid the ETF to switch to verizon for the GN. I am in plano tx which is in the Verizon LTE area and i dont get any signal except in a few spots on the highway. I work in Richardson, which is also in the LTE area, and i dont even have 3g in the building. I dont have any signal when i go deeper into the building away from the windows. I am running stock 4.0.2. I hope this gets better. I am already regretting dropping ATT.
Click to expand...
Click to collapse
Strange. I have excellent 3G and 4G signal in buildings, coming from Sprint I had non-existent data everywhere, especially indoors.
Just as an fyi. I went to Verizon to try to get a new phone. They told me my sim card was bad. I got the phone on the first day and they said they had issues with the first sim cards with the nexus. My wifes has the same problem.
New sim card, NO MORE connection issues. Yeah! Anyone else who has this issue might try this. I am now getting 3g and even 4g connections inside now.
ill go to the verizon store after work and switch sims. Just got it on 1/1. Ill go to a different verizon store to make sure its not a bad batch lol.
Wasnt the SIM card. Still getting crappy signal strength. I am going today and replacing the phone. If that doesnt work, i am going back to ATT skyrocket...
spencer88 said:
Strange. I have excellent 3G and 4G signal in buildings, coming from Sprint I had non-existent data everywhere, especially indoors.
Click to expand...
Click to collapse
In my office I get very weak to no 4G signal, so that the phone is constantly switching from weak 4G down to 3G and causing connection disruptions. I usually just disable LTE and use CDMA only mode to fix this. I have heard that a LTE signal should penetrate inside of buildings better, but apparently my workplace is almost impenetrable. We have a Verizon 3G repeater in the office or I would get no usable signal at all.
Spencer, what kind of speeds are you getting with LTE in the Columbia area? It seems like I got better speeds when I had my Rezound than I'm getting with my Galaxy Nexus.
jason.hamilton said:
My 4g reception sucks. I am rather disappointed. I canceled my ATT account and paid the ETF to switch to verizon for the GN. I am in plano tx which is in the Verizon LTE area and i dont get any signal except in a few spots on the highway. I work in Richardson, which is also in the LTE area, and i dont even have 3g in the building. I dont have any signal when i go deeper into the building away from the windows. I am running stock 4.0.2. I hope this gets better. I am already regretting dropping ATT.
Click to expand...
Click to collapse
I've had the exact opposite experience in Dallas. I switched from AT&T a year ago. I couldn't even make calls in my house. (I live in Lakewood) I had to go upstairs or outside. As far as data goes even on just 3G the Verizon speeds are much faster. I've done quite a few AT&T vs Verizon 3G side by side tests and Verzion has won every time. 4G is just a bonus for me. When I get a 4G signal there is no comparison. My coworker and I did a speed test on Tuesday at DFW. His iPhone 4s on AT&T vs my Gnex. I was getting 10-15 mbits down and he was getting like 2-3
3G Data
I am having the same exact problem. I thought it was related to airplane mode, I have it turning on at midnight and off at 6am. In the morning, if there is no Wifi and the phone is in 3G, I can't get data. Restarting gets data back, but I'm looking for a more elegant solution than that.
I'm having HUGE data issues, see:
http://forum.xda-developers.com/showthread.php?t=1421440
just a quick question. are you guys running custom ROMs/kernels? if so, please add that in your post.
none at all here.

Connection/Speed Issue and Tower Question

I'm in the Los Angeles area where Sprint's 4G Network is just being built up. The service is terribly slow, even when on the 4G Network. My question/problem though is, I've noticed that when I go from one area to another, for instance if I'm at a shopping center and on tower that's 3G and then cross the street to another shopping center that has a tower that's 4G... my Data gets all screwed up. Somehow in the process of connecting to a new tower with a different speed, my Data always freezes up and you can't do anything for long periods of time. I'm talking anywhere from 5-10 minutes. I often have to put my phone into Airplane mode and reconnect to get anything moving.
Just wondering if this was a common occurrence? Or if this is just a result of Sprint's crappy network, or what.
On a related note, I've also noticed that even if I'm not going between towers, there are a lot of times when my phone says it has a strong Data Connection on either 3G or 4G, say 3 bars or so, and yet my Data hangs and I can't use the web. Any ideas what the cause might be?
captaingrey said:
I'm in the Los Angeles area where Sprint's 4G Network is just being built up. The service is terribly slow, even when on the 4G Network. My question/problem though is, I've noticed that when I go from one area to another, for instance if I'm at a shopping center and on tower that's 3G and then cross the street to another shopping center that has a tower that's 4G... my Data gets all screwed up. Somehow in the process of connecting to a new tower with a different speed, my Data always freezes up and you can't do anything for long periods of time. I'm talking anywhere from 5-10 minutes. I often have to put my phone into Airplane mode and reconnect to get anything moving.
Just wondering if this was a common occurrence? Or if this is just a result of Sprint's crappy network, or what.
On a related note, I've also noticed that even if I'm not going between towers, there are a lot of times when my phone says it has a strong Data Connection on either 3G or 4G, say 3 bars or so, and yet my Data hangs and I can't use the web. Any ideas what the cause might be?
Click to expand...
Click to collapse
The bars do not determine your signal strength. There's cases where people have no bars but data is still being transferred and get fantastic speeds. I recommend installing Speedtest and depending on your results you should call your network provider on the data issue
Sent from my Nexus 4 using xda premium
LuigiBull23 said:
The bars do not determine your signal strength. There's cases where people have no bars but data is still being transferred and get fantastic speeds. I recommend installing Speedtest and depending on your results you should call your network provider on the data issue
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
Yeah, I have Speedtest. The speeds in LA are awful. Usually range from 0.54 to 0.78 mbps DL on 3G. On 4G its about 8.7 - 9.13.
And thanks for the response, but I still don't understand what the connection issue is between Towers and I'm pretty sure calling Sprint to ask them what the deal is would be a waste of 3 hours.
captaingrey said:
I'm in the Los Angeles area where Sprint's 4G Network is just being built up. The service is terribly slow, even when on the 4G Network. My question/problem though is, I've noticed that when I go from one area to another, for instance if I'm at a shopping center and on tower that's 3G and then cross the street to another shopping center that has a tower that's 4G... my Data gets all screwed up. Somehow in the process of connecting to a new tower with a different speed, my Data always freezes up and you can't do anything for long periods of time. I'm talking anywhere from 5-10 minutes. I often have to put my phone into Airplane mode and reconnect to get anything moving.
Just wondering if this was a common occurrence? Or if this is just a result of Sprint's crappy network, or what.
On a related note, I've also noticed that even if I'm not going between towers, there are a lot of times when my phone says it has a strong Data Connection on either 3G or 4G, say 3 bars or so, and yet my Data hangs and I can't use the web. Any ideas what the cause might be?
Click to expand...
Click to collapse
I may not know what can cause this issue but I can try to help on making it a tad better. Check out my recent post on how to increase your data speed on the Note 2 http://forum.xda-developers.com/showthread.php?t=2253340 and if your data does hang, try going into Settings, More Settings, Mobile networks, and just uncheck and check Mobile data. Hope this helps out.

[Q] HTC One M8 dropping data connectivity but showing 4G LTE...

Hey everyone!
I have a stock M8 with T-Mobile and I live in LA. I'm new to T-Mobile so I wanted to ask if this is normal.
My phone will lose data connectivity but the 4G LTE sign will stay on. Spotify will stop playing, Speedtest won't work, but the phone keeps telling me I have 4G LTE.
This happens a lot especially when driving, but today it happened while I was in the drive-through of a fast food place. I had barely moved and yet data was working fine at first, then suddenly "poof" nothing works anymore cause no internet, but the phone insists I have 4G LTE.
Usually turning data off and then on fixes it but not always.
Could it be an issue of switching towers? But then wouldn't my signal drop completely? Why does only data stop?
Anyone else having this issue or do I have a lemon phone I should return?
if you are jumping from tower to tower it may not relay properly. Call tmo and tell them to do a signal refresh. call from a different phone.
Do you have power saving mode on? The reason I ask this is bc it will turn your data connection off when your screen locks.
Sent from my HTC One_M8 using XDA Premium 4 mobile app
I feel your edge
Same here ,
Ever since I bought the m8 it happens to me time to time.
Ive tried dis n reconnect the mobile data or go on airplain mode, but sometimes reboot is quicker.
Hope HTC publish a bug fixed firmware soon
Its a provisioning issue on the towers people you need to call tmo...
This was happening all the time to me on my Note 3 which Is why I upgraded to the M8. Just got it last night and it's happened once. Also, the signal isn't as strong. My Note would hold a lte connection with barely 1 bar. The m8 not so much. Likes to switch between 2g, 4g and lte.
Sent from my HTC One_M8 using XDA Premium 4 mobile app
drksilenc said:
if you are jumping from tower to tower it may not relay properly. Call tmo and tell them to do a signal refresh. call from a different phone.
Click to expand...
Click to collapse
I took your advice and did it. Let's see what happens.
Thanks for the help!
cainman said:
I took your advice and did it. Let's see what happens.
Thanks for the help!
Click to expand...
Click to collapse
Did it work? I also just got T-Mobile and live in LA and it happens to me as well. I have a Nexus 5 though.
ainjobizz said:
Did it work? I also just got T-Mobile and live in LA and it happens to me as well. I have a Nexus 5 though.
Click to expand...
Click to collapse
It was fine for a couple of days. Today however I had to wait in the car for 1.5 hours for something and was playing Spotify.
Didn't move for that entire period. For an hour it worked fine, then suddenly it did this again where it wasn't receiving data and yet the 4G LTE sign was on screen.
So I guess it didn't really help. I turned data off and on and it restored it, but still... that's not cool.
cainman said:
It was fine for a couple of days. Today however I had to wait in the car for 1.5 hours for something and was playing Spotify.
Didn't move for that entire period. For an hour it worked fine, then suddenly it did this again where it wasn't receiving data and yet the 4G LTE sign was on screen.
So I guess it didn't really help. I turned data off and on and it restored it, but still... that's not cool.
Click to expand...
Click to collapse
Yeah same here. It happens in my house when I'm using my phone in bed and just loses data but it still says LTE and have to either turn off and on data or reset my phone.
Also on my way to work today I was using Spotify the entire drive, which is about 45 minutes, and never lost data but on the way back it lost it about twice. It sucks and hopefully there's a fix of some sort.
Sent from my Nexus 5 using Tapatalk
I think is not phone problem
tmobile signal issue
my z1 and htc m8 sometime both have this kind of issue
they both show I still have lte icon but just can't connect to network
and sometime you must wait like 1-2 mins to reconnect to network
I have had my M8 for a week and have not experienced any issue with data loss. I am in Miami, Fl. If anything I get way better LTE speeds than I have had with any of my last phones( S4, G2, Iphone 5S)
Same issue with my M8.
Full bars LTE signal and sometimes data just stops working. Need to reboot the phone to get it working again. Was thinking about exchanging the phone but it seems like a software glitch...
Dan37tz said:
Same issue with my M8.
Full bars LTE signal and sometimes data just stops working. Need to reboot the phone to get it working again. Was thinking about exchanging the phone but it seems like a software glitch...
Click to expand...
Click to collapse
I don't have this issue but I do have terrible speeds in south Atlanta.
3-5 bars in my home, and download speeds are from 3-6 Mbps down and uplad from 2-3Mbps up even with LTE. I get much better performance on HSPA+
LTE pings are half that of HSPA though
Just to add on here, in my experience this has more to do with the area and likely the towers supporting that area then software or hardware. Another possibility is T Mobile's network in LA is not 100% compatible with HTC is new radio firmware yet. If that's the case some tweaking by t-mobile on the backend would fix this issue straight away.
The reason I say this is because in Las Vegas, Nevada I never have any problem with LTE losing connection, however, this last week I was in Long Beach, CA (LA County) and constantly had loss of data connection while the phone would still displaying a full 5 bar 4G LTE connection.
Reboot or switching to airplane mode would fix it, however, it got to be so bad and happened so regularly, I eventually stopped using LTE entirely while there. The HSPA+ "4G" connection there was still producing around 10 megabits per second download which was more than enough. So, while there I switched off LTE and had no more issues with data connection dropping.
Long story short clearly seems to be an issue with T Mobile Lte Towers in the greater Los Angeles area. Possibly its an issue in other areas as well.
Behold_this said:
Just to add on here, in my experience this has more to do with the area and likely the towers supporting that area then software or hardware. Another possibility is T Mobile's network in LA is not 100% compatible with HTC is new radio firmware yet. If that's the case some tweaking by t-mobile on the backend would fix this issue straight away.
The reason I say this is because in Las Vegas, Nevada I never have any problem with LTE losing connection, however, this last week I was in Long Beach, CA (LA County) and constantly had loss of data connection while the phone would still displaying a full 5 bar 4G LTE connection.
Reboot or switching to airplane mode would fix it, however, it got to be so bad and happened so regularly, I eventually stopped using LTE entirely while there. The HSPA+ "4G" connection there was still producing around 10 megabits per second download which was more than enough. So, while there I switched off LTE and had no more issues with data connection dropping.
Long story short clearly seems to be an issue with T Mobile Lte Towers in the greater Los Angeles area. Possibly its an issue in other areas as well.
Click to expand...
Click to collapse
Happening here in South Houston too, but i am using a VZW M8 with Tmo.
I also have this issue, but I'm on AT&T and missing some bands that I need, so I was figuring it was that.
I had a galaxy s5 and had same issue.
So i know it's not the phone
Sent from my HTC One_M8 using XDA
Has anyone found a solution to this problem yet? My HTC One M8 has been losing data connectivity ever since I purchased it last month. It will say I have 4G LTE but I will loose data connection regardless. It's a nuisance. I never had that problem with the M7. My camera on the M7 got a purple haze so T-Mobile replaced it with a refurbished M7. It was the worst thing I could've done. The refurbished M7 would freeze and reboot a lot, until it finally got stuck in a boot loop and I lost all my photos, videos, and files. Would not go into recovery. Then T-Mobile sent me a plastic Samsung S4 as a replacement for that because they were out of the M7. The new M8 has been working pretty well except for the annoying data connection loss everyday. I have to activate then deactivate airplane mode to obtain data connection again. Only other time I ever had this happen was with a certain nighyly rom I put on my HTC HD2, but that was rooted, this is a stock phone, I never expected to have a data connection problem with a stock rom.
I had this problem for ages with straight talk with my old phone just before I bought my M8. Exactly the same issue in that my data would seemingly just cut out randomly after a bit then come back later(switching off/on and/or in and out of airplane would restore it).
In my case, it turned out to be my data settings. I played around with different settings one night and found that different settings finally got rid of the problem for me. Your mileage may vary, but it's an easy enough thing to try.

(Q) LTE

Is anyone experiencing LTE problems? I have great Spark signal in my area, but this phone seems to go to 3g all the time. My other phones are always on LTE, so obviously coverage is not the issue here. I will unroot thru Odin and see if it's a root problem.
ajr0312 said:
Is anyone experiencing LTE problems? I have great Spark signal in my area, but this phone seems to go to 3g all the time. My other phones are always on LTE, so obviously coverage is not the issue here. I will unroot thru Odin and see if it's a root problem.
Click to expand...
Click to collapse
Not a root problem. Weird part is it only seems to happen to me in areas where there is really strong 4g, like in my house. At work, I am on a weaker 4g signal all day long without issues.
Try updating your profile and prl. Also make sure you have CDMA/LTE selected under mobile network.
ajr0312 said:
Is anyone experiencing LTE problems? I have great Spark signal in my area, but this phone seems to go to 3g all the time. My other phones are always on LTE, so obviously coverage is not the issue here. I will unroot thru Odin and see if it's a root problem.
Click to expand...
Click to collapse
I have the same problem. It keeps dropping my signal to 3g..even when it's on 3g sometimes it loses the 3g signal and reconnects to 3g.. the areas I go always have band 41 ...my previous phone was the nexus 5 and the signal was great...never drops connection like this...I thought it was only my phone as I haven't seen someone with the same problem in the forums. I'm in nyc area
Hopefully there is fix soon, it's very annoying to have this data issues.
Its not just your phone mine does the same thing at my work. I switch between multiple different band 25 26 and 41 towers as well as 3G towers. It occurs while the phone just sits on my desk. Theres a couple other threads discussing this. To my knowledge no one has any usable suggestions to help with this.
Sent from my SM-N910P using XDA Free mobile app
dmisselh said:
Its not just your phone mine does the same thing at my work. I switch between multiple different band 25 26 and 41 towers as well as 3G towers. It occurs while the phone just sits on my desk. Theres a couple other threads discussing this. To my knowledge no one has any usable suggestions to help with this.
Sent from my SM-N910P using XDA Free mobile app
Click to expand...
Click to collapse
My Note 4 does the exact same thing. I'm in a fully covered spark area, my old s4 always connected to lte with about 10 meg download. Awesome data offensive note 4 gets 3 to 5 meg download.. sometimes only getting 0.01 upload speed. That's the only thing that consistently bothers me about this phone. Oh yea it also constantly drops lte... to 3g. Feels like it's data is going through a dial up modem. I'm going to check the Sprint forums and see if I can find any good info.
Happened once in one place i was. Lower LTE signal and the phone kept dropping it and falling back to 3g, while my gf Lg G2 kept the LTE connection. I'm thinking they need to tweak the radio software in a future update.
Sent from my SM-N910P using Tapatalk
I've noticed that all the TriBand devices (Anything with Spark) switch to 3G for a bit then connect back to LTE/Spark. I haven't heard anything from work about this issue yet. I've also noticed its areas that have low Spark signal and high LTE signal.
My guess is it's a handoff problem. I will see all bars but LTE grayed out while riding the metro.
There is another thread touching on this too....I am having terrible LTE connection. My wife, who is an iPhone 6 user, gets 4 bars (or circles? lol) of LTE while I can sit next to her with 0-1 bars LTE or 3 bars 3G. I love this phone too much to complain alot about this but I am confident Sprint/Samsung will release an update to fix this.
The exact same problem occurred when the LG G2 got the spark update. It took 8 months for sprint to issues update that was specific to the LTE problem. I had to factory wipe before and after the update to get it to stick. The only difference is before the G2 was updated a toggle to airplane mode would bring the LTE back. That trick does not work on this phone. I will also add I drive alot at my job 6 hours plus a day. I go to the same spots to do paperwork in my truck. My Note 4 will not stay on LTE/Spark in locations where my G2 had a constant 10-15mbps connection.

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