Develop Bugs

Werid 4g speeds, need help ruling out phone or network

I bought a Tmobile Galaxy S3 on new years from staples, and since ive got the phone ive been experiencing strange 4g speeds. While im in my house, I always have full signal strength, and it always says 4G. I live in the Bronx in New York City, and when the 4g is working properly, I get upwards of 20 megabits down, and 1-2 up. Now I could literally be sitting in the exact same spot, and later ill test the phone and it says 0.2 - 0.3 megabits, and like over 1000 ping and the up is so slow it doesnt even measure it. It usually comes back after waiting, turning airplane mode off and on multiple times or doing a battery pull. I find it strange that I can get either 21 mbps or 0.3 in the same house, while always having full bars. In the phone status sometimes it would say UTMS or HSPA, so it does switch from 3g to 4g sometimes. The thing is my previous phone was Nexus S with 3g and im pretty sure I never had a problem loading a simple image in my house because the internet was so slow. I consistently pulled 3-6 mbps on that phone. I tried calling t-mobile 3 times and they give me the same basic crap, like clear your cache, make sure airplane mode is off (really?) make sure youre network mode is on auto (i tried auto and wcdma only and it still gets slow) and all that other stuff. Is there anything else I could try to see if its a network or phone issue?

It sounds like it might be something with your local tower. I would call Tmobile and put in a repair ticket.
Sent from my SGH-T999 using Tapatalk 2

Thanks, I just did that. Called t-mobile and just directly asked them to check for tower issues, and they filed a complaint. They said to check back in 3 days, hopefully this gets fixed, or else it might be the phone. Do you think flashing different modems would change anything?

tigim101 said:
Thanks, I just did that. Called t-mobile and just directly asked them to check for tower issues, and they filed a complaint. They said to check back in 3 days, hopefully this gets fixed, or else it might be the phone. Do you think flashing different modems would change anything?
Click to expand...
Click to collapse
It wouldn't hurt to try. What are you currently running? (rom/kernel/modem)
Sent from my SGH-T999 using Tapatalk 2

Completely stock 4.1.1, with UVDLJA modem, which is the latest I believe. The phone is relatively new so I wanted to try touchwiz before I rooted. Does installing something like cm10 change the modem? Or is it independent of rom/kernel. I saw an application for tmo that can change between multiple modems pretty quickly, I might give it a try.
Sent from my SGH-T999 using xda app-developers app

My opinion
tigim101 said:
Thanks, I just did that. Called t-mobile and just directly asked them to check for tower issues, and they filed a complaint. They said to check back in 3 days, hopefully this gets fixed, or else it might be the phone. Do you think flashing different modems would change anything?
Click to expand...
Click to collapse
I work for T-Mo,
If I may lend my opinion,
To me, it definitely sounds like the tower. If you go from 20Mbit down to 0.2, and with 1000ms latency, it's super obvious there is something
wrong with the tower, or there is significant demand on the tower from other users, hey its NYC population density is insane.
Something to note as well, New York City is "in progress" for "network modernization" where they are switching to 1900Mhz.
This is why some people who have iPhones are now getting 3G in certain areas, unlocked devices, as well as AT&T phones can have 3G down there.
Due to this, since there is quite a lot of switching around going on down there, that's probably what's going on.
Example:
http://www.tmonews.com/2013/01/t-mobiles-network-modernization-what-is-it-where-can-i-get-coverage/
Hope it helps.

I see, well that makes sense. I dont really mind if its a tower issue because thatll be fixed eventually, I just would of hated if I had to replace the phone, it would of been such a hassle because I didnt buy it direct from t-mo. Thanks to both of you!
Also, since t-mobile seems to be using multiple bands for 4g, I guess it would be better to leave it on auto in network settings?
Sent from my SGH-T999 using xda app-developers app

tigim101 said:
I see, well that makes sense. I dont really mind if its a tower issue because thatll be fixed eventually, I just would of hated if I had to replace the phone, it would of been such a hassle because I didnt buy it direct from t-mo. Thanks to both of you!
Also, since t-mobile seems to be using multiple bands for 4g, I guess it would be better to leave it on auto in network settings?
Sent from my SGH-T999 using xda app-developers app
Click to expand...
Click to collapse
If it helps you at all to see if you are on a different band than 1700/2100mhz
You can go into the dialer and do:
*#0011#
Up top mine says band 4
Which is for 1700mhz AWS
BAND 2
which is for 1900mhz PCS.
You might be on band 4 or 2 on a tower by tower basis, or if they are making adjustments
You might be switched but that is above my pay grade lol

Anyone notice their service getting worse?

At first I thought it might have been my rom, but it seems it's happening with my GF's note 2 also.
Coverage we used to receive in some areas is almost completely gone. It will show signal and the 4g symbol but basically have NO internet service whatsoever.
On a better note, we've been receiving coverage in some areas we don't usually have it.
I'm hoping this is just a temporary thing due to the attempts to upgrade towers for LTE.
I don't know if it's because of the UVBMB4 update, but t-mobile service has been pretty crappy lately. Period.
We're in the San Gabriel Valley area.
Link for older UVALL4 modem below, people seem to experience better service
http://forum.xda-developers.com/show...php?p=36786363

I believe my service has suffered as well. Before the last update that enabled our Lte radios, I had great speeds, now it's slowed Way down. I'm in San Diego CA. Hope that it's just as the Op said, LTE towers being updated and what not.
Sent from my SGH-T889 using xda premium

Definitely have noticed a deterioration of service over the past month here in NYC.

Its because for some reason that new LTE APN is slow on HSPA+.. unless you have LTE in your area switch to the EPC APN. You can find the settings online. Its litter ally consistently a difference of 6+ mbps I have extensively speed tested lol..... click thanks if this helped
Sent from my SGH-T889 using xda premium

I also had problems even with old apn.
Flashed previous radio and service is top notch again.
Sent from my SGH-T889 using xda premium

Same here, I thought it was rom related.

YES! My service has sucked royally for the past month or so. Data latency/hangups/slowness, and the signal will just completely go away sometimes. I noticed that it started as soon as I flashed the most recent radio too, I'm about to go back to the old one.

Count me in, even my regular phone reception went from 4 bars no 1 or 0!

Can anyone point to towards old radio to flash? I go from no signal downstairs to full bars upstairs...theres an obv issue with new radio.

Yup I've noticed this beginning this week I've made zero changes to the phone. I used to get full bars at work and this week it bounces between full and 1 bar regularly. Theure messing with towers for sure
North Carolina by the way. Charlotte. Big City of 1 million people.
Sent from my SGH-T889 using Tapatalk 2

nxneko said:
Can anyone point to towards old radio to flash? I go from no signal downstairs to full bars upstairs...theres an obv issue with new radio.
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?p=36786363

nxneko said:
Can anyone point to towards old radio to flash? I go from no signal downstairs to full bars upstairs...theres an obv issue with new radio.
Click to expand...
Click to collapse
I'm also experiencing significant decrease on data speed. Has your data speed improve after flashing with older radio and APN setting?
Sent from my SGH-T889 using Tapatalk 2

zen0s said:
I'm also experiencing significant decrease on data speed. Has your data speed improve after flashing with older radio and APN setting?
Sent from my SGH-T889 using Tapatalk 2
Click to expand...
Click to collapse
I was getting about 9/0.6 and with flashing back Im getting... 14/2 Though Ive been on HSDPA 15 & 21. Though Im not getting 4G as much, but it was sporadic anyways and I lost signal...and now I am not. So, Im happy now even though I am on 3G. However... in my corner big red has same problems as they wanted to not have tons of towers in this corner and theres only a ATT Tower....for a decent distance. basically reception fringe. though I am a new subscriber so i haven't experienced normal TMO, I literally got my device yesterday around 6pmish but it def wasn't normal and flashing previous radio did fix it like it solved everyone elses issue

janjannsen99 said:
Yup I've noticed this beginning this week I've made zero changes to the phone. I used to get full bars at work and this week it bounces between full and 1 bar regularly. Theure messing with towers for sure
North Carolina by the way. Charlotte. Big City of 1 million people.
Sent from my SGH-T889 using Tapatalk 2
Click to expand...
Click to collapse
my problems started last friday. i have limited to no service at all; no data, no voice, even no signal at times (circle with line through it, not just no bars). when i do get a signal, the phone refuses to register on the network. when im at home, i have intermittent service. i miss calls, texts wont send, if i do get a working call, it drops after a bit. there are times when it works fine, even on LTE but it never last long. went to the tmo store last night and they gave me a new sim which didnt do squat. already done the factory reset option (twice). phone has never been rooted, all stock. im in the KC metro so not like in the middle of nowhere. they said my next step is a warranty replacement phone if the sim didnt help. not sure if my problem is at all related to everyone elses in this thread, but yeah, service has sucked.

One of the issues, especially if you switch from 4g to edge to gprs a lot, is a setting in the new modem.
It's something called acquisition order. It has 3 settings:automatic, gsm_umts, umts_gsm. In short it tells the phone what kind of network to prefer. It will search for and use that type of network first.
Prior to the latest update it was set to auto. Now it is set to prefer umts. For some reason this has caused an issue I've come to call phantom 4g. Where it'll say 4g with no bars and no data service.
That is my guess. I'll look into it further.
Sent from my SGH-T889

Thanks guys for the heads up on switching to an older radio, I dont have LTE in Miami yet and was having slow internet for the last 3 weeks, I just switched and wow! What a difference. I'm also using the Epic APN.

I also noticed that speeds were degraded after the update. However, there is a simply fix to make your web a tad bit faster....
Go into your network settings, and switch your mobile network from LTE/4g/3g/2g to just 4G/3g/2g
your device will stop looking for an LTE connection and will just utilize HSPA+
Made a world of a difference on my own device. Connecting to the play store, opening web pages, everything was right back to where it was before the update.
Obviously if you live in an LTE area, there is no need to do this...

newageoutlaw said:
I believe my service has suffered as well. Before the last update that enabled our Lte radios, I had great speeds, now it's slowed Way down. I'm in San Diego CA. Hope that it's just as the Op said, LTE towers being updated and what not.
Sent from my SGH-T889 using xda premium
Click to expand...
Click to collapse
I dont know about you but I live in san diego too my data speed stay above 10meg and max is 15meg.
Sent from my SGH-T889 using xda app-developers app

So I'm gonna be a noob here for a sec. When people say they are flashing the previous radio (I'm referencing the link that was posted) are people just flashing the modem from the section under the most recent? (the one with the January date on it). Just thought I would ask. Better safe than sorry. Thanks!
Sent from my SGH-T889 using xda app-developers app

superkamiguru31 said:
So I'm gonna be a noob here for a sec. When people say they are flashing the previous radio (I'm referencing the link that was posted) are people just flashing the modem from the section under the most recent? (the one with the January date on it). Just thought I would ask. Better safe than sorry. Thanks!
Sent from my SGH-T889 using xda app-developers app
Click to expand...
Click to collapse
Yup, radio is synonymous with modem in this case. UVALL4 is the previous version.
Hastily spouted for your befuddlement

Reception Issues?

Anybody else having reception issues? My HTC Rezound would always have 1-2 bars at my house but I either get 1 bar or nothing on my One. My signal strength is -117 dBm.

Haven't noticed that here. Mine is still naked until the double flip case from HTC arrives
Sent from my Nexus 7 using Tapatalk 4

After more research I think the issue is a bad SIM card. I will go to the vzw store today and get a new one.

GrayTheWolf said:
After more research I think the issue is a bad SIM card. I will go to the vzw store today and get a new one.
Click to expand...
Click to collapse
Did the new SIM fix the problem? I'm thinking of jumping from the S4 to the One, but it seems that the S4 has better radios, or from what I can tell from various forums and an in-store test.

elir41 said:
Did the new SIM fix the problem? I'm thinking of jumping from the S4 to the One, but it seems that the S4 has better radios, or from what I can tell from various forums and an in-store test.
Click to expand...
Click to collapse
Due to parental issues, I can't get to the VZW store till later today. I will let you know what the outcome is.
Before this issue started my reception was wonderful.

I'm kinda disappointed in the signal reception on this phone actually. I can from a Galaxy nexus which was notorious for having crappy reception. This phone is worse and the data speeds are slower.
My friend who has an HTC one Dev edition on att has great service and speed. I'm starting to think that Verizon's network isn't what they crack it up to be.

Mine seems to be going well. I haven't had any signal issues. I usually average about -70 dBm give or take on LTE.

Mine shows 3 bars at -101dBm with peaks to about -95, even with that I can average barely over 1meg down speeds. Don't even ask about up... I'd just return the phone but I'm leery since I'm one of the few that actually got my bootloader unlocked. Wonder if they are throttling me since I have unlimited data...

91ludesit said:
Mine shows 3 bars at -101dBm with peaks to about -95, even with that I can average barely over 1meg down speeds. Don't even ask about up... I'd just return the phone but I'm leery since I'm one of the few that actually got my bootloader unlocked. Wonder if they are throttling me since I have unlimited data...
Click to expand...
Click to collapse
Don't do it. I had to get a replacement and I lost my unlock.

Reception has absolutely been worse on this phone for me.
I used to have the DNA, then I got the S4 and now I'm on the One.
With the DNA and S4, when I'd leave my house, I was immediately on 4G (3bars with the DNA, 1 bar with the S4). On the One, I get no 4G. Instead, I get 2-3 bars of 3G when leaving my house, and it doesn't switch over to 4G until I've driven a couple miles. Sometimes it never switches to 4G.
This is really disappointing because I was assuming it would have the same or even better radios than the DNA (and especially the S4, which also gave me worse reception when compared to the DNA)
I'd save overall, about 50%+ of the time, I'm on 3g now, where I would have always been on 4G with the DNA. :crying:

eleazar123 said:
Reception has absolutely been worse on this phone for me.
I used to have the DNA, then I got the S4 and now I'm on the One.
With the DNA and S4, when I'd leave my house, I was immediately on 4G (3bars with the DNA, 1 bar with the S4). On the One, I get no 4G. Instead, I get 2-3 bars of 3G when leaving my house, and it doesn't switch over to 4G until I've driven a couple miles. Sometimes it never switches to 4G.
This is really disappointing because I was assuming it would have the same or even better radios than the DNA (and especially the S4, which also gave me worse reception when compared to the DNA)
I'd save overall, about 50%+ of the time, I'm on 3g now, where I would have always been on 4G with the DNA. :crying:
Click to expand...
Click to collapse
With my replacement my reception is wonderful again. No issues.

GrayTheWolf said:
With my replacement my reception is wonderful again. No issues.
Click to expand...
Click to collapse
Very interesting. Did you just go into the store and say the reception is bad? I feel like they'll see that I have 4G at the store and say that it's perfectly fine. :\
I got mine after they blocked htcdev, so I have nothing to lose with replacing it.

eleazar123 said:
Very interesting. Did you just go into the store and say the reception is bad? I feel like they'll see that I have 4G at the store and say that it's perfectly fine. :\
I got mine after they blocked htcdev, so I have nothing to lose with replacing it.
Click to expand...
Click to collapse
My phone was screwed up when I flashed CM and I couldn't make calls. So I had a definitive and repeatable reason to get a new phone. It would just sit there and say "dialing".

eleazar123 said:
Reception has absolutely been worse on this phone for me.
I used to have the DNA, then I got the S4 and now I'm on the One.
With the DNA and S4, when I'd leave my house, I was immediately on 4G (3bars with the DNA, 1 bar with the S4). On the One, I get no 4G. Instead, I get 2-3 bars of 3G when leaving my house, and it doesn't switch over to 4G until I've driven a couple miles. Sometimes it never switches to 4G.
This is really disappointing because I was assuming it would have the same or even better radios than the DNA (and especially the S4, which also gave me worse reception when compared to the DNA)
I'd save overall, about 50%+ of the time, I'm on 3g now, where I would have always been on 4G with the DNA. :crying:
Click to expand...
Click to collapse
Honestly, that sounds more like a software issue (not recognizing when it should switch) rather than an actual reception issue.

I think it is actually the sim card, because when I got home my reception was finally the same as my wife's nexus and the speed was much better. They gave me a new sim card with this phone and I wish they would have just used the one that was already in my nexus.

jntdroid said:
Honestly, that sounds more like a software issue (not recognizing when it should switch) rather than an actual reception issue.
Click to expand...
Click to collapse
The other guy that tried cyanogenmod is having the same issues as me. We are going to try different things to make his work again.

GrayTheWolf said:
With my replacement my reception is wonderful again. No issues.
Click to expand...
Click to collapse
Good to know someone in my town has good reception on this phone.
I want to pick it up soon when beg red starts the new upgrade early plan in a day or two.

OK maybe I'm blind, how do you check dbms on this phone??
Sent from my phone

jntdroid said:
OK maybe I'm blind, how do you check dbms on this phone??
Sent from my phone
Click to expand...
Click to collapse
Settings -> about -> network

chrisloveskaos said:
Good to know someone in my town has good reception on this phone.
I want to pick it up soon when beg red starts the new upgrade early plan in a day or two.
Click to expand...
Click to collapse
Yup, reception is great. Cool to meet someone from my home town!
I'm up near Falls Lake.

Tmobile note 3 slow lte on att

Just made the switch over to att and I am getting really slow lte speeds. Can anybody help?

Fix your APN?
sent from my sm-9005.

@rbiter said:
Fix your APN?
sent from my sm-9005.
Click to expand...
Click to collapse
Tried every APN setting possible already. Searched all the threads and still no help.

There's a thread on here about flashing the AT&T modem and it solving the problem. Plz search and find it...
Here I found it for you..
http://forum.xda-developers.com/showthread.php?t=2522282
Sent from my SM-N900T using XDA Premium 4 mobile app

AdmiralCF420 said:
There's a thread on here about flashing the AT&T modem and it solving the problem. Plz search and find it...
Here I found it for you..
http://forum.xda-developers.com/showthread.php?t=2522282
Sent from my SM-N900T using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Thanks for the advice but I read through the thread already and it doesn't seem like it will improve drastically. So I rather not attempt to flash a modem that may cause a soft brick. My brother has a N900a and gets almost triple the speed of my lte. What gives?

I dont always get fast speeds. I'm guessing at&t phones get higher priority than other phones. There is a build.prop that you can flash/edit that may or may not work. I, myself, haven't made any mods because I get higher speeds usually. Not always. I am on a 900T but using an international 9005 rom with T-Mobile modem still. It really boils down to is the risk flashing a modem or build.prop worth it. In downtown houston I rarely dip below 10mb/s on LTE and occasionally see over 20mb/s. The congestion is real bad here so it is very often I get bumped back down to hspa. Like I said, you have to weigh the risks. I am fine with how it is working now. My post probably hasn't helped you get you where you want to go but it may help you to be content with what you have or may consider flashing an international rom minus modem and see if that helps.
sent from my sm-9005.

I'm on straight talk att sim and it's ridiculous on an att phone I get att quality signal. But with this tmobile phone when home I can only get signal in my bed room by the window . From I walk into building calls and signal dropped dead . It truly sucks. I'm switching back to tmobile as soon as this month is over . I hate paying that extra 30 dollars but a phone is no good in one room .
Sent from my SM-N900T using XDA Premium 4 mobile app

diamantericos said:
I'm on straight talk att sim and it's ridiculous on an att phone I get att quality signal. But with this tmobile phone when home I can only get signal in my bed room by the window . From I walk into building calls and signal dropped dead . It truly sucks. I'm switching back to tmobile as soon as this month is over . I hate paying that extra 30 dollars but a phone is no good in one room .
Sent from my SM-N900T using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I as well am on Straight Talk At&t micro sim and I get pretty decent speeds I believe Straight Talk cap's their LTE speeds at 15 down and I think around 8-9 up which ain't bad for the Chicago area. But there are times where I barely get 2 down and 4 up. I also have a Tmobile Note 3 stock/rooted using a ST sim.

nynexelf said:
I as well am on Straight Talk At&t micro sim and I get pretty decent speeds I believe Straight Talk cap's their LTE speeds at 15 down and I think around 8-9 up which ain't bad for the Chicago area. But there are times where I barely get 2 down and 4 up. I also have a Tmobile Note 3 stock/rooted using a ST sim.
Click to expand...
Click to collapse
The speeds are fine when I actually get a signal . Its the fact that I have dead spots in almost my whole apartment except the rooms located to front of building . It was never like this before .
Sent from my SM-N900T using XDA Premium 4 mobile app

Tmobile Note 3 on ATT Network
I have a Tmobile unlocked phone on ATT and I can't find out anyway to speed up the LTE. I get LTE it seems, but it cuts the speed in half compared to my girlfriend ATT variant Note 3. I tried to flash an AT&T modem to it, but then it would soft brick the device and wouldn't boot. I have tried every APN I can think of, but still no success. I have tried the build.prop, like adding the lines for faster data tweak, but still nothing is getting better. I have full bars, but speed is slow. Do you have any suggestions on what to do, b/c I am out of options. Thanks.

Add me to the list. Just switched over to AT&T from T-mobile, but get very bad speeds. The only reason why I switched over was because with T-mobile, I was getting poor quality signal almost EVERYWHERE, so I had no choice.
I'm curious; if the bands in our phones support the proper AT&T bands and we actually get LTE, it's gotta be a software issue. Modem most likely.

Yeah im sure it has to do with the way the modem is optimized for ATT's 1700 band. I'm also in the same boat and have flashed ATT's modem but it doesn't work. Others have flashed ATT modems but I dont think anyone has been able to successfully see their baseband change in the settings so no one can say whether it worked for sure. I can tell you that the bars have nothing to do with your call signal though, its just your LTE signal strength. If you really want higher signal in your house if LTE seems to drop or be super slow, you should manually switch over to use HSPA+ in your house. Its a pain...i know.
I'm hoping eventually the newer modems fix the 1700 mhz frequency optimization or some devs figure out how to successfully flash N900A modems on the N900T.

LTE speeds
I have great signal almost always it seems like. I have full bars on LTE or 4G/HSPA+, but if I put my sim card in my AT&T variant note I get at least twice as much throughput than with the note 3 tmobile. It has to be a software issue, I have tried to flash att modems with no success. Just got to wait for a tweaked modem. I have even tried tweaking build.prop file and it works a little bit but not much. It is just weird I have full bars with LTE, but I won't be able to get data sometimes, which is really weird. I think there has to be something with the signal bars showing higher dbm that it actually is receiving. Probably another software glitch. Well if anyone has any insight on this issue let us know, please been looking everywhere.

LTE speeds
I think also that the modem is not the only issue. I flashed a kernel today after being on the stock kernel on the T-Mobile and I did a speedtest and the speeds were really low. Flashed another kernel and boom faster speeds back to where I was, maybe higher, but I will monitor to see what happens. But I read that Kernels do affect data speeds sometimes. I am just going to keep looking around to see if any kernels work.

stevestebo said:
I think also that the modem is not the only issue. I flashed a kernel today after being on the stock kernel on the T-Mobile and I did a speedtest and the speeds were really low. Flashed another kernel and boom faster speeds back to where I was, maybe higher, but I will monitor to see what happens. But I read that Kernels do affect data speeds sometimes. I am just going to keep looking around to see if any kernels work.
Click to expand...
Click to collapse
AFAIK it has nothing to do with kernel I might be wrong its just the modem
Sent from my SM-N900T using Tapatalk

Steven
Is there any tweaks that can be done to kinda help the LTE or at least fix my signal bars showing full all the time. I am thinking it is not switching towers when it is supposed to and giving a false signal strength. Is there anything on modifying like you can on Sprint phones with dbm on wimax, where it will switch antennas.

Has anybody flashed the new N900T NE6 based ROMs / modem and seen any difference?

dirrtyswan said:
Has anybody flashed the new N900T NE6 based ROMs / modem and seen any difference?
Click to expand...
Click to collapse
I upgraded the modem and bootloader to the new NE6 version. I'm on Temasek CM11. My observations:
Signal strength is slightly better. Speeds are definitely much better. Prior to the upgrade, I'd get around 6-15/down, 3/up. Now I consistently get 25/down, 10/up.

ajm786 said:
I upgraded the modem and bootloader to the new NE6 version. I'm on Temasek CM11. My observations:
Signal strength is slightly better. Speeds are definitely much better. Prior to the upgrade, I'd get around 6-15/down, 3/up. Now I consistently get 25/down, 10/up.
Click to expand...
Click to collapse
How did you get the new modem to stick? Did you do the triangle away method? If so, did you have to revert to a stock kernel first? I'm trying to upgrade only the modem and leave the bootloader as is. Is that a bad idea?

dirrtyswan said:
How did you get the new modem to stick? Did you do the triangle away method? If so, did you have to revert to a stock kernel first? I'm trying to upgrade only the modem and leave the bootloader as is. Is that a bad idea?
Click to expand...
Click to collapse
It's getting incredibly frustrating to have to repeat this a number of times. I think this morning I had to repeat it already 3 times. Please do a search; there are plenty of pointers on how to get it done. For reference, here is what I did.
http://forum.xda-developers.com/showpost.php?p=52904005&postcount=95

4G not working(UK)

I was wondering why my phone always displayed the 3G logo next to signal bar so decided to investigate further. Despite living in the centre of town the 4G around here is quite patchy so I put an identical "Three(3UK)" 4G sim in my old Moto G 4G phone and went outside to compare...sure enough, the Moto G was showing 4G while the P8000 showed 3G. As far as I know I have never seen 4G in the display. The phone will be going back if I can't get 4G!
Anyone else experienced this or am I the odd one out?
4G is selected under preferred network type.

Have you tried Editting the APN settings to that for Three?
Sent from my Nexus 4 using XDA Free mobile app

Go to dial pad and type:
*#*#4636#*#* that should take you to phone info. then on nework mode choose LTE only and see if it works...

APN seems fine, thanks for that hashcode @ferreinf - I will try that when I'm definitely in a 4g area near my flat

My brother has just got one and is having exactly the same issue on Three. Any joy?

Lol
I will Rek u after u read this
-OCv ReckeR

Wilbatron said:
My brother has just got one and is having exactly the same issue on Three. Any joy?
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I drove to a 4g area nearby today and force enabled LTE only as described(you can also d/l MTK engineering app from playstore to do this) - I did manage to get the 4g symbol above the signal bars but a speedtest didn't really produce what you might expect from a 4g connection...the symbol did change back by itself to H about a minute later so I'm not quite sure what's going on here....I might have an old Vodafone PAYG sim somewhere so my next move might be to try it instead. Haven't got access to EE or O2/giffgaff cards to test. APN settings seem to be correct and 3g data does work quite well so it's interesting that your bro has the same issues, where did he buy his phone and what colour is it(does his have the blue notification led in home button?)

Wilbatron said:
My brother has just got one and is having exactly the same issue on Three. Any joy?
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I use 3 4G I have no problem
I will Rek u after u read this
-OCv ReckeR

charliepie said:
where did he buy his phone and what colour is it(does his have the blue notification led in home button?)
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I think it might have been geekbuying, it only came today. Black one with blue LED. I got him to try switching to LTE only and he said he got a 4g signal but lost ability to make calls. I'm also on 3 but with a Honor 6 and I'm due to see him tomorrow so I'll have a tinker myself and see how his signal is compared to mine in the same location.

That will indeed be a good test, I was out again in another location tonight and noticed the 4g come on by itself so perhaps that's a good sign - I'll have to test the calls function when on 4g tomorrow but it should automatically revert to 3g for that surely. I am using the flyme rom by the way...my area is supposed to have 4g according to the coverage checker but it's bloody useless around here!
That Honor 6 better be good for $300 though you probably paid more at the time(did you get single or dual sim?),
I actually bought the P8000 for my wife but she finds it too heavy and the screen too big so I'm stuck with the big gold brick - at least the battery life is pretty good!

Tested the 4g again and it seems to be working better now that I forced it to LTE through the engineering menu and when you make a call it reverts to 3g then cycles back to H then 4g when you end call. Didn't test d/l speed as I had my payg card in and running a 4g speedtest burns quite a lot of data!
So how do you rate your Honor 6 against your bros phone?

4g just popped up on mine, got 25.3 down and 2.2 up. Not sure if that's good or bad to he honest.
Sent from my Elephone P8000 using XDA Free mobile app

That's pretty good I'd say, I would be happy with that! I flashed the stock ROM back today and forced phone to LTE and your bro is right about the calls not working as the phone doesn't revert to 3g for voice automatically so I might have to go back to flyme...hope cm ROM is here soon and that it works well!

Tried again today on stock rom not forced to 4G and the phone did pick up 4g automatically as I was driving around, calls worked too so it seems that problem has magically fixed itself as it wasn't showing 4g at all the first week I had it! Still getting the annoying random wifi hangs and camera crashes when trying to use with other apps(waze in my case).

there's an firmware update adressing this issue, dated august 15th. it should fix this.
http://bbs.elephone.hk/forum.php?mod=viewthread&tid=7096

Sorry, not been back to this thread since contributing before.
My brother is still complaining about internet speeds. When I sat with him I was getting H+ but his phone was just showing 3G. Tried to force to 4G only but that resulted in no signal (we were in a weak 4G area). So my main concern at the mo is that he might not be getting H+ and is only either getting standard 3G.
It's difficult to debug from afar, but I did all the usual engineering menu stuff when I was with him and none of that seemed to help. I'm seeing him again on Saturday and we'll both be in a 4G area so I'll at least be able to do some more comparisons...
Regarding my Honor, it's a lovely phone. I paid about £200 for the single SIM European version of it back in January. I had a Lenovo A830 prior to that so I'm a big Chinaphone fan, but didn't want anything bigger than 5" which is what made me go for the Honor. The P8000 seems very nice too though!
---------- Post added at 08:21 PM ---------- Previous post was at 07:50 PM ----------
I remember on my A830 having to flash a different modem / radio image to get the correct bands and I notice a similar issue with some import OPOs detailed here forums.oneplus.net/threads/modem-hack-for-chinese-opo-to-enable-3g.46696 - I suspect a similar issue might be at play here.
Might flash the FlyMe ROM for him at the weekend seeing as people have had success with that...

Hi,
I have 4G issue too but have yet to see 4G display once and I"m in a strong signal area.
I have configured my APN for giffgaff, data is enabled, 4g is "preferred" in options and LTE is forced in Eng menu as above *#*#4636#*#*
But still no 4g from my sim which is working as tried in another phone any ideas please?
what does the 3g with a smaller 3g behind it mean?
Regards