Develop Bugs

[Q] [HELP] How to enable 4g on MIUI JB

I am having a trouble with 4G LTE connetion on my Sprint Galaxy Nexus running MIUI 2.9.21. I flashed the rom and must say. Everything seems to be working except when I went to the play store and downloaded speedtest.net (A necessity) and I noticed it was moving very slow to search and download. So It finished downloading and I start it up. I look at the speeds and they were so horrible I have to post them. 713kbps down, 566kbps up, ping 142ms. This is bad considering that I live in a well lit 4 bars all the time and rarely dips into 3 bars, 4g area and with other roms Like codename Android and stock I easily get 20,000kbps down, 15,000kbps up, and ping 7ms. *Note that for me to enable 4G on those roms I will have to settings, and update my profile* I do not see any thing like that in MIUI. So i'm asking Is there a way to update my profile in MIUI.
I love MIUI for the customizability <---- If that's a word| and speed on all my previous phone: HTC HD2, T-mobile G2, and T-Mo G2X. Now that I have this phone I would like to continue the trend of having MIUI Freedom on this phone.

I fixed the 4G speed numbers it was actually supposed to say 20,000kbps down/15,000kbps up and ping 7ms
I noticed it had views but no replies. This is probably why

Odogray said:
I fixed the 4G speed numbers it was actually supposed to say 20,000kbps down/15,000kbps up and ping 7ms
I noticed it had views but no replies. This is probably why
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I have the same issue. I see I can change Network Mode to "LTE/CDMA" in Mobile Network Settings, but I have yet to see my phone show me any "4G" speed, even though I realize Sprint's 4G availability is spotty in San Jose, CA area. I'm wondering if this ROM supports 4G LTE on Sprint?

Tyrant917 said:
I have the same issue. I see I can change Network Mode to "LTE/CDMA" in Mobile Network Settings, but I have yet to see my phone show me any "4G" speed, even though I realize Sprint's 4G availability is spotty in San Jose, CA area. I'm wondering if this ROM supports 4G LTE on Sprint?
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Same here. But ppl seem like they aren't having a problem with it to be such a big feature like 4G or there will be alot of problems

lte preferred network not working?

I live in Dallas tax and according to the coverage map lte is all over. When my preferred network settings are set to lte/ cdma it never connects to lte goes to 3g for a few minutes then disxonnexts. Switch my preferred network settings to cdma and 3g is always connected. Could this be a cyanogen issue or do most people deal with this? Any help would be appreciated.
Thanks

Sprint's marketing department figured it'd be better to show LTE coverage of completion. Unfortunately, your area is probably not covered yet, but will be once the city is completely upgraded.

So basically I need to leave it in CDMA preferred network mode to keep it connected?

ws669 said:
So basically I need to leave it in CDMA preferred network mode to keep it connected?
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LTE coverage would be a Sprint problem - the random disconnects are timeouts through eHRPD via Cyanogenmod RIL issues. It wont timeout on you on other ROMs, but if you place it onto CDMA only, you'll be fine.
Until Cyanogenmod fixes the problem, the random LoS (Loss of Service) issues will continue.

If you download and use Sensorly, it shows actual coverage, where actual users have picked up LTE coverage.

Anybody know of good ROMs that don't have this issue? My friend said aokp is good but he's on a different carrier, any thoughts?
Thanks

I was using AOKP and was having this same issue... assuming it's because they get a lot of their code from the CM repos.
I ended up trying out a few different TW ROMs and my signal strength was amazing with any of them. Currently I'm using FreeGS3 ( http://forum.xda-developers.com/showthread.php?t=1748818 ) and have no real issues.
The only thing that bugged me about the TW ROMs is some of the default apps like Email/Exchange, but I just replaced those with the APKs from AOKP and everything is fine.
If the signal issue gets fixed in CM/AOKP I would be more than willing to jump back, but the massive difference in signal strength is too much for me to not use a TW ROM.

ws669 said:
Anybody know of good ROMs that don't have this issue? My friend said aokp is good but he's on a different carrier, any thoughts?
Thanks
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All AOSP roms are based off CM10 github, so they're all going to have the issue. AOKP is a little dated now 11/10 build doesn't have LoS, but it doesn't connected to Ehrpd either. The issue is, once LTE connection is established, and you move outside an LTE area, you go LoS for a bit (some say 20 seconds, others say 5 minutes). But it wont lose signal until LTE is dropped.
EDIT: the cm10 timeouts were after the LJ7 blobs were implemented, which I believe were 11/11 and after.

This is also happening on stock jb.
Sent from my SPH-L710 using xda app-developers app

thanks for the info, going to flash the tm rom when I get home.

Im in Dallas as well and its still being built out.
I get 3G at home, closer to down town. I get stable and steady 4G LTE at work, near Abrams and NorthWest HWY. In fact at my office on the 4th floor im on 4G LTE all day, ride the elevator down and by the time i get to my truck in the parking lot back to 3G. Drive a minute down the road and it might go back to 4GLTE again.
Luckily for me at my office on the 4th floor i get 4G LTE strong enough it holds the signal and isnt constantly switching.
The odd thing is a couple times a week my phone will switch to 4G LTE at my residence but when this happens i get no data on my device. I have to wait for it to go back to 3G to get data back. I think its a tower issue.

I'm having the same experience. LTE usuallys drops quickly. I get it in my apt and it is pretty fast. I live in Richardson. I experience LOS when I try to go from 4g to 3g. It drops the call everytime.

Well damn, hopefully they hurry and build out the network around dallas

ws669 said:
Well damn, hopefully they hurry and build out the network around dallas
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I think thats the sentiments of everybody on Sprint with an LTE device.. No matter where they are..

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the T-mobile signal on s4

Seems the signal isn't good on the S4, flashed the base band ,an d the problem still exists...
Bad luck

karl_2000 said:
Seems the signal isn't good on the S4, flashed the base band ,an d the problem still exists...
Bad luck
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might just be your area, i get full bars and kick a** data speeds all around my city

TheAtheistOtaku said:
might just be your area, i get full bars and kick a** data speeds all around my city
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+1 to this

karl_2000 said:
Seems the signal isn't good on the S4, flashed the base band ,an d the problem still exists...
Bad luck
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I have the same issue. I'm in the SF Bay Area and even though TMobile's site has where I live and work as dark green (excellent 4g) I am lucky to get even one bar. Half the time I get network errors. Anyone else with TMobile experience anything like this? Any chance it's something that'll get resolved before my 30 day return period ends?

do any of you have other tmobile phones to compare signals with? if so, do that and if there are major differences talk to a tmobile store about getting a replacement.
these might be isolated incidents, because the majority of people are getting fully functional units

Wavern said:
I have the same issue. I'm in the SF Bay Area and even though TMobile's site has where I live and work as dark green (excellent 4g) I am lucky to get even one bar. Half the time I get network errors. Anyone else with TMobile experience anything like this? Any chance it's something that'll get resolved before my 30 day return period ends?
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im in SF bay area (mountain view)
my data speeds are *top notch*.
you are either in an area thats out of tmobiles footprint or have a defective unit.
best bet would be to wait till tmobile actually gets the GS4 on display in the store.
when they do, go to your nearest tmob, and do a speedtest.net comparison with the demo model, and yours. if they are similar, then your part of the bay is legacy; if there is a big difference; 3,4 5 etc megabit difference; your unit may be worth exchanging for a new unit.

Wavern said:
I have the same issue. I'm in the SF Bay Area and even though TMobile's site has where I live and work as dark green (excellent 4g) I am lucky to get even one bar. Half the time I get network errors. Anyone else with TMobile experience anything like this? Any chance it's something that'll get resolved before my 30 day return period ends?
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What part of SF are you experiencing this? My GF lives by the ballpark & she won't switch with me if she gets ****ty service.

I have excellent reception (bars) on my S4.
Way better than my Note II.

I let you know. When I get my phone next week. I do a speedtest and a screenshot of the phone signal in the settings menu.
DEVICES:
NEXUS 7 32GB STOCK
(NO ROOT)
T-MOBIL LG G2X (LG-P999)
STOCK (ROOTED)
Sent from my LG-P999 using xda premium

Have S4 and One, both show identical signal and speeds are also same.
Sent from my SGH-M919 using Tapatalk 2

Im getting much improved signal compared to my Gnex and Atrix HD.
Sent from my SGH-M919 using Tapatalk 2

Still no signal inside my workplace. Will do more tests. It does seem the signal is more stable, but it's only been a couple days.
Also, 4G LTE flashed for a couple seconds at my house. I live in the D.C metro area. Nice.

I have the HTC One in the Phoenix market. LTE is difficult to find more than a few bars on. 4G HSPA+ has been very easy to get full bars on.
I'm somewhat convinced T-Mobile is still working on building out in even LTE and re-farmed markets.
Sent from my cm_tenderloin using Tapatalk HD

Its funny how T-Mobile improves their network and yet many years later I still don't have service in places where I had no service maybe 5-6 years ago. And on top of this I noticed even more dead spots. I think T-Mobile should be working on that along with building penatration.....I would much rather have 3G everywhere then LTE almost nowhere.
Lately it became very frustrating since my wife has no service at work, i have no service at work, and i recently moved to different location and still no service....and God forbid I loose my wife in the mall, I have zero chances of finding her because no T-Mobile service inside.

Just got my S4 today and did not realize theres LTE where I work (fremont) which I never saw on my note 2. Even went out to lunch and was still getting LTE the next street over. So just to test I'm now back on my note 2 and it is not picking up LTE at my work. That tells me the radio on the s4 is much better.
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2

Oops
Sent from my SGH-M919 using XDA

Wavern said:
I have the same issue. I'm in the SF Bay Area and even though TMobile's site has where I live and work as dark green (excellent 4g) I am lucky to get even one bar. Half the time I get network errors. Anyone else with TMobile experience anything like this? Any chance it's something that'll get resolved before my 30 day return period ends?
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yea its something with the S4's phone/modem. I get bars and shows signal strength of 3 to 4 bars and i can make call but no internet in certain areas all around Los Angeles County/Orange County/Las Vegas/NYC. To test it i had my buddy go with me with his LG L9 and my buddy with his LG L9 phone would work fine on the calls and data/internet meanwhile my S4 would only get calls but no data as if it was a deadspot. i would have to go around like 1/4 or so before it would work again. its really strange not to mention annoying. I noticed this started happening to me after i upgraded from MDB to the MDL baseband and after i unlocked the phone using the "debug service menu". i wish i knew someone else with a stock TMO S4 to test my findings out more. I also cant wait for more tmo S4 modems. ive been thinking of ODINing back to stock MDB to test my theory, but i have just been lazy.
---------- Post added at 08:20 PM ---------- Previous post was at 07:24 PM ----------
XeoNoX said:
yea its something with the S4's phone/modem. I get bars and shows signal strength of 3 to 4 bars and i can make call but no internet in certain areas all around Los Angeles County/Orange County/Las Vegas/NYC. To test it i had my buddy go with me with his LG L9 and my buddy with his LG L9 phone would work fine on the calls and data/internet meanwhile my S4 would only get calls but no data as if it was a deadspot. i would have to go around like 1/4 or so before it would work again. its really strange not to mention annoying. I noticed this started happening to me after i upgraded from MDB to the MDL baseband and after i unlocked the phone using the "debug service menu". i wish i knew someone else with a stock TMO S4 to test my findings out more. I also cant wait for more tmo S4 modems. ive been thinking of ODINing back to stock MDB to test my theory, but i have just been lazy.
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i think it was a TMO LTE tower upgrade issues. after doing the Settings > More networks > Mobile networks > Network mode > and switching between the WCDMA and GSM one or the other now will work. better to have some internet than no internet, weird how the S4 just wont switch over to the working GSM internet if WCDMA fails....i guess when they coded it they figured if u have bars it "should work in theory" but they were wrong ...personally i think this should be considered a "bug"

I thought I was the only one. I found that if i keep my diztronic tpu case on while in my pocket it destroys all signal for some reason. I take it off and its fine.

layzer253 said:
I thought I was the only one. I found that if i keep my diztronic tpu case on while in my pocket it destroys all signal for some reason. I take it off and its fine.
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I further tested my theory and went without my case all day. It didnt appear to do anything different at all. I am on CM10.1, I think I might go back to stock for awhile to see if it changes the fluctuating signal issue.

Just curious on how everyones signal is and which baseband they are on?
I'm on M919UVUAMDL and I have seen up to 15% of no signal while my S3 had 0 signal loss in a regular day.

Question about 4g data

Hey guys,
I just switched from Verizon to t mobile and I have a question about their data connection.
I know they have 4g and 4g lte but are you suppose to get data while on regular 4g?
Whenever I'm on 4g I get no data even with full bar. I am currently on Jedi V5.
Thanks in advance.

Yes. Data should work at all times. Even on 4G.
Sent from my Galaxy Note 3

bryanthomas007 said:
Yes. Data should work at all times. Even on 4G.
Sent from my Galaxy Note 3
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Any idea why there is no internet with full bar on 4g? Or how I can fix it?

hslayer said:
Any idea why there is no internet with full bar on 4g? Or how I can fix it?
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you need to further explain in detail what is happening on your phone? maybe a video or something.

XxLostSoulxX said:
you need to further explain in detail what is happening on your phone? maybe a video or something.
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I have full bar on 4g and i try to load page on my browser and it doesn't load, same thing with apps that require internet connection, they will not work

hslayer said:
I have full bar on 4g and i try to load page on my browser and it doesn't load, same thing with apps that require internet connection, they will not work
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lawl tmobile sucks....no but seriously, i would recheck your apn settings, make sure theyre all in order...otherwise...thats strange, i know that i have LTE all the time, but if i make a phone call, i drop to 4G because the LTE Radio has to be disabled temporarily when im making calls, which is understandable, the only other thing i can think of is T-Mobile being at fault for some kind of issue on their end. but if you can check your apn settings and try again see what you come up with.

the SAME thing happens to me. I believe it has todo where we live? Anyways in my house when I do loose LTE and get even full bars of 4G its worse then 3G. Half the times it says no connection other times it takes forever to load. I tried going in and out of airplaine mode tried turning ut off and on ect. Also tried to dial##2263## and don't work on my phone. Maybe because of the ROM? But yea my 4G is crapppp.
Sent from my SM-N900T using Tapatalk

I also am in the middle of switching over from Verizon to T-Mobile. This is going to be a really hard decision to stay or not. In terms of Data, T-Mobile is no where near Verizon even if they have faster speeds on SOME of their towers. Verizon is very solid and I just always have Data. It isn't something you ever even think about. T-Mobile on the other hand is very hit and miss. When it is good, it is very good but when it isn't, well it isn't.
So to get to you problem, I am seeing the very same thing with my two completely stock Note 3's. I just took a trip this weekend up the cost (Los Angeles to Pismo Beach up HWY 101) so I got to see the how the network does on a trip. for MUCH of the trip, I had a very strong 4G signal but had EXTREMELY slow data speeds, It was basically unusable. Google Maps for example was completely unusable since the map wouldn't update with this extremely slow or no data connection. What I am seeing with T-Mobile is that the connection type indicator such as 4G has 0 to do with what speeds you are going to get. Many of the 4G towers I was on was only giving me download speeds in the range of 0.1 to 0.01 Mbps.
I am within an excellent range for the tower at my house, I can actually see it from my house with no interference between it and me. My speeds on what shows to be a strong 4G signal is Ping = 644 ms, Download = 0.69 Mbps and upload = 0.85 Mbps.But again, on my trip, there were many times that full bars of 4G gave me no response to anything I tried to do that required Data.
T-Mobile may have the fastest speeds when you can get them but there are WAY to many towers and that have 0 to very slow speeds on major highways! You can't even use Google Maps on US HWY 101?
I really want to stay on T-Mobile but coming from Verizon it is a huge step backwards in terms of data reliability. If I do end up staying, I really hope they start concentrating on making the data network actually usable when you are driving around. I would rather have 4 or 5 Mbps of speed on every tower vs 25+ Mbps on some towers sprinkled around that your lucky if you live next to one.

chuko303 said:
the SAME thing happens to me. I believe it has todo where we live? Anyways in my house when I do loose LTE and get even full bars of 4G its worse then 3G. Half the times it says no connection other times it takes forever to load. I tried going in and out of airplaine mode tried turning ut off and on ect. Also tried to dial##2263## and don't work on my phone. Maybe because of the ROM? But yea my 4G is crapppp.
Sent from my SM-N900T using Tapatalk
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if you are running a touchwiz rom its *#2263#

(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.
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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.
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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
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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.