Develop Bugs

[Q] Change 3G band to European GSM 900/1800

A family member gifted me a Galaxy S4, however it is the SGH-M919. I currently live in Europe and 3G bands in my region are GSM 900/1800. At the moment I can't access 3G and any other type of data for that matter (LTE is not supported here). Is there a way to change T-mobile 950 and 1900 bands to my region ones?
Thanks for taking your time to answer

Sadly not.
Since the radio does not support those frequencies for hsdpa

TheArtiszan said:
Sadly not.
Since the radio does not support those frequencies for hsdpa
Click to expand...
Click to collapse
So there's no way to fix it?

Hello Flex,
I have the same phone "Samsung S4 SGH-M919 - Tmobile" and I live in Hungary, it works fine with me all you have to do is just to switch form WCDMA/GSM to any other option "like GSM only" then back to WCDMA/GSM as a kind of refresh and the 3G will work fine after that, you can find this inside Settings > More Networks > Mobile Networks > Network mode, but unfortunately you have to do this every time you restart your device.
There is also another alternative solution is to reset the Access point names to default, you can find this inside Settings > More Networks > Mobile Networks > Access Point Names.
to be honest I don't know the reason of this error, but try what I described and tell me if it works with you.
Good Luck

Well. I have the exact same phone and have tried several ROMs, either custom or stock and basebands also. Nothing seems to work. The very few users who reported it was working didn't provide much evidence of it. Even Wikipedia says no 3G 900MHz availability for this phone. A simple edit to NV 1877 values won't solve it. I've tried that too.

[Q] LG G3 D855 LTE issue problem in UK

Hello
I have just got a LG G3 D855 from Asia. and the item can't find the LTE network. only work on WCDMA & GSM. any one have that problem and how can fix it
Lun

lunlun99 said:
Hello
I have just got a LG G3 D855 from Asia. and the item can't find the LTE network. only work on WCDMA & GSM. any one have that problem and how can fix it
Lun
Click to expand...
Click to collapse
You probably have the wrong band version i maybe wrong

jaythenut said:
You probably have the wrong band version i maybe wrong
Click to expand...
Click to collapse
the box mention phone supporting LTE 700/800/900/1800/2100/2300/2600. it isn't wrong band version.

lunlun99 said:
the box mention phone supporting LTE 700/800/900/1800/2100/2300/2600. it isn't wrong band version.
Click to expand...
Click to collapse
That's strange then maybe put this in the dialer 3845#*855# and see if it is activated

jaythenut said:
That's strange then maybe put this in the dialer 3845#*855# and see if it is activated
Click to expand...
Click to collapse
what's activated mean ?

jaythenut said:
That's strange then maybe put this in the dialer 3845#*855# and see if it is activated
Click to expand...
Click to collapse
what's activated mean ? and it's show up Connection problem or invalid MMI code

lunlun99 said:
what's activated mean ?
Click to expand...
Click to collapse
If you have 4G it will say under band i think
And you do have 4G contract with your carrier

Yes. the SIM work my other phone in LTE network
jaythenut said:
If you have 4G it will say under band i think
And you do have 4G contract with your carrier
Click to expand...
Click to collapse

I'm having the same problem with Three UK, no 4G. Although 4G worked on my Lumia 1020 with the same SIM a few days ago.
If I go into the hidden menu under LTE you can set it to use LTE and it connects to 4G brefiely then goes back to 3G and it never shows GSM/ WCDMA / LTE auto in the mobile networks menu, just GSm / WCDMA auto.
I noticed on the demo unit in a Three store that the phones software version was V10a-EUR-XX whereas mine is V10g-HKG-XX.

lewisco said:
I'm having the same problem with Three UK, no 4G. Although 4G worked on my Lumia 1020 with the same SIM a few days ago.
If I go into the hidden menu under LTE you can set it to use LTE and it connects to 4G brefiely then goes back to 3G and it never shows GSM/ WCDMA / LTE auto in the mobile networks menu, just GSm / WCDMA auto.
I noticed on the demo unit in a Three store that the phones software version was V10a-EUR-XX whereas mine is V10g-HKG-XX.
Click to expand...
Click to collapse
if you have root you can try deleting (or renaming) LTE Config.apk from /system/app

Lennyuk said:
if you have root you can try deleting (or renaming) LTE Config.apk from /system/app
Click to expand...
Click to collapse
Is there anything that can be done without root? I've tried setting the LTE in the hidden services menu and it connects foe a few seconds and then goes back to HSDPA. If seeting to LTE only it stays on LTE but not sure how it will work if I leave 4G coverage? I've also enabled fast dormancy but that doesn't seem to help.

There was a discussion about this in the UK thread, some phones came with 4G deactivated (on the 800MHz band used by 3 and Vodafone) that had to be activated at every boot. Replacing it fixed the problem as its not supposed to happen. But since the phone is from Asia who knows. Im not sure if flashing the eur version of the rom would work?

lewisco said:
Is there anything that can be done without root? I've tried setting the LTE in the hidden services menu and it connects foe a few seconds and then goes back to HSDPA. If seeting to LTE only it stays on LTE but not sure how it will work if I leave 4G coverage? I've also enabled fast dormancy but that doesn't seem to help.
Click to expand...
Click to collapse
fast dormancy is a network dependant setting that has nothing to do with the generation of signal you are receiving.
The only other option you have is to try and flash another firmware version.

Lennyuk said:
fast dormancy is a network dependant setting that has nothing to do with the generation of signal you are receiving.
The only other option you have is to try and flash another firmware version.
Click to expand...
Click to collapse
Can you recommend which FW to use?

Same here d855 version 3gb ram from Hong Kong no lte in the settings

stinkypoo said:
Same here d855 version 3gb ram from Hong Kong no lte in the settings
Click to expand...
Click to collapse
LTE will work from the hidden menu, or download 4G switcher from the Play store which will take you to the menu also. Just change it to LTE/GSM/WCDMA and it will work on the 4G network (at least on 3 UK). LG UK support will not help as it came from HK. I still want to know if I can flash a Euro 32GB ROM to my phone to get it working natively.

make sure u have activate your LTE with your carrier,i you have done it,and still didnt have LTE, try the hidden menu,or try 4G switch frm playstore,rooting and deleting lteconfig from system/app would be your last option (i prefer this)

Lennyuk said:
if you have root you can try deleting (or renaming) LTE Config.apk from /system/app
Click to expand...
Click to collapse
thank you, this fixed my problem!
my lte/3g/2g settings was everytime reset to 2g/3g modus when i got back to settings. i deleted lte config.apk and the .odex file, rebooted and BAM! it keeps on lte/3g/2g

Solved
I had the same issue (no LTE option in Networks configuration menu), until today: My phone installed firmware V10i-HKG-XX, and now I have the "GSM/WCDMA/LTE auto" option in Preferred Network Mode.
Cheers

LG G3 Asian D855 no 4G
lunlun99 said:
Hello
I have just got a LG G3 D855 from Asia. and the item can't find the LTE network. only work on WCDMA & GSM. any one have that problem and how can fix it
Lun
Click to expand...
Click to collapse
Do the following -
1. From the dailer, type in 3845#*855#
2. Select LTE Only
3. Modem Setting
4. RAT Selection
5. GSM/WCDMA/LTE Auto
You should now receive 4G but everytime you reboot, you have to repeat this procedure

[Q] Is there an option to force LTE only?

[Q] Is there an option to force LTE only?

datdirtyscrew said:
[Q] Is there an option to force LTE only?
Click to expand...
Click to collapse
On some versions, which one did you have in mind?

npaladin2000 said:
On some versions, which one did you have in mind?
Click to expand...
Click to collapse
D851 from T-Mobile

datdirtyscrew said:
D851 from T-Mobile
Click to expand...
Click to collapse
Nope. They'll let you lock out LTE, but the mode options are as follows:
GSM/WCDMA/LTE Auto
GSM/WCDMA Auto (no LTE)
WCDMA Only (No GSM or LTE)
GSM Only (No WCDMA or LTE)
I was happy to find this much, I came from AT&T, which doesn't let you do any of this. Given T-Mobile's incomplete LTE deployment, I can understand not putting in an LTE Only option, they're not going to be fully deployed until mid 2015.
Maybe once they're more deployed they'll add an LTE Only option.

LTE only would give you data only. You need hspa for voice. Until voice over LTE is regular, you won't see this option

Data is all I need. Was just curious. Maybe once CM hits the G3. Thanks for all the feedback.

Hi
Open the dialer and inter this numbers:
3845#*851#
Then choose:
LTE-Only > modem setting > RAT Selection > LTE Only
if u having other models like D855 - D856 - D858 or any LG device running android lollipop u can use this method
3845#*Your model#

al5zMri said:
Hi
Open the dialer and inter this numbers:
3845#*851#
Then choose:
LTE-Only > modem setting > RAT Selection > LTE Only
if u having other models like D855 - D856 - D858 or any LG device running android lollipop u can use this method
3845#*Your model#
Click to expand...
Click to collapse
@al5zMri thanks a lot man!!! This works on d855 i have unlimited LTE data plan but... only LTE -_- so it was incredibly annoying to constantly check connection mode while downloading. Now i wont waste money anymore!!!

Hi. It worked well on my G3-855, to force LTE only. But once the phone is forced to LTE only , now how to go back to the menu to cancel the "LTE only" if I need to registrer on an GSM or a 3G network ? Now once it's on "LTE only" which works fine for LTE, I can't enter anymore the hidden menu, the phone dosen't "dial" any number as it can't find a network to dial on. LTE is considered as a not dialing mode - it's data only. Thanks.

Lg stylus two dual
How can I get this to work for my lg stylus 2 dual.... I can't force lte only... Network disappear so quick ​the given code doesn't work for my phn

Turn on VoLTE on International Unlocked Handset

Hi, my carrier three in the UK, note supports VoLTE but I have an Unlocked handset not a three branded one. Is there a way to enable VoLTE with out flashing my ROM?
Thanks

Not that I am aware of.

What if I was prepared to flash my ROM? It's there a way to get it activated on the phone?

only ee supports wireless calling pretty sure this won't work on 3, as the carrier has to support it.
Sent from my LG-H815 using Tapatalk

Same problem here.
I flashed three UK kdz ver 10b then 10e which has in props flag volte, however there is one problem. Phone software version still isn't correct, shows version OPT2-SI.
I have rooted the phone and have access to the original three UK LG g4, will compare build prop files.
All other customisation (including homepage) is profiled for three UK though.
The problem is that volte is available only on 800 MHz lte band and nowhere on their website is shown where exactly it's available. Three UK allows access to this band only for LG g4 with three UK updated software, not any other phone. Which is bonkers...
Forcing band 20 results in constant search, no network available. Though according to their website Glasgow where I am is enabled (though no coverage map).

Right. After a few hours managed to get it. Will post the detailed way to do it when I get some sleep.
You need rooted phone, three kdz ver 10e, FX Explorer with root add on and hex editor to edit misc partition to show the software you've got three UK phone.
1. Volte enabled, works
2. Coverage of 800 MHz is much poorer (Glasgow) than 1800 MHz, therefore phone won't use much of the volte as this is available only on 800 MHz and the phone will stick to stronger signal.
3. You can force to use 800 MHz in the engineering menu. However, at home I'm getting 25 meg down on 1800 MHz and just 5 meg on 800 MHz.
4. On open Europe version, I was able to force to use only LTE. On three UK version after change I can force it only when manually selecting 800 MHz band. When on 1800 MHz the phone does not connect to LTE (signal bar ok, but data not connected).
4. There is no handover from volte to 3g. If you lose 800 MHz coverage, the call would be dropped (same happens on original three UK handset)
5. Speeds will always be slower on 800 MHz as three UK uses 5 MHz spectrum compared to 10 MHz on 1800 MHz.
Good news, I thought previously that three UK allows access by IMEI but that's not the case.
Not sure if this is worth the hassle for now..

michalpro said:
Right. After a few hours managed to get it. Will post the detailed way to do it when I get some sleep.
You need rooted phone, three kdz ver 10e, FX Explorer with root add on and hex editor to edit misc partition to show the software you've got three UK phone.
1. Volte enabled, works
2. Coverage of 800 MHz is much poorer (Glasgow) than 1800 MHz, therefore phone won't use much of the volte as this is available only on 800 MHz and the phone will stick to stronger signal.
3. You can force to use 800 MHz in the engineering menu. However, at home I'm getting 25 meg down on 1800 MHz and just 5 meg on 800 MHz.
4. On open Europe version, I was able to force to use only LTE. On three UK version after change I can force it only when manually selecting 800 MHz band. When on 1800 MHz the phone does not connect to LTE (signal bar ok, but data not connected).
4. There is no handover from volte to 3g. If you lose 800 MHz coverage, the call would be dropped (same happens on original three UK handset)
5. Speeds will always be slower on 800 MHz as three UK uses 5 MHz spectrum compared to 10 MHz on 1800 MHz.
Good news, I thought previously that three UK allows access by IMEI but that's not the case.
Not sure if this is worth the hassle for now..
Click to expand...
Click to collapse
Would really appreciate the full write up, as Three are not currently planning on updating the software for my Phone Z2, so I may try and replicate your work as best I can.

Three ROM on Unlocked International Handset
Please share how I can get enable VoLTE with Three on Samsung Galaxy S5, or HTC One M8?
michalpro said:
Same problem here.
I flashed three UK kdz ver 10b then 10e which has in props flag volte, however there is one problem. Phone software version still isn't correct, shows version OPT2-SI.
I have rooted the phone and have access to the original three UK LG g4, will compare build prop files.
All other customisation (including homepage) is profiled for three UK though.
The problem is that volte is available only on 800 MHz lte band and nowhere on their website is shown where exactly it's available. Three UK allows access to this band only for LG g4 with three UK updated software, not any other phone. Which is bonkers...
Forcing band 20 results in constant search, no network available. Though according to their website Glasgow where I am is enabled (though no coverage map).
Click to expand...
Click to collapse

Likewise, I'd be interested to understand the settings to enable it on the Nexus 6.

LG G3 user here, willing to flash a ROM if needed to get 800Mhz data as an option when I specifically want to choose band 20 from the bands hidden menu.
I'm tempted to buy an LG G4 from Three but I'm worried their firmware might lock out some of the hidden menu functions like band selection and 800 is the lowest priority you'd hardly ever see it if you couldn't set the band.
Definitely be interested to see what other people have got working.

Any update michalpro?

Anything?

Has anybody else managed to get 800Mhz data access on the G4 or non Three branded devices?

OK, took some time to get back here, busy time.
Before you attempt to do anything, you have to know it can brick your device easily.
This is ONLY for LG G4, not for any other device. ALL YOUR DATA WILL BE WIPED OUT.
Download KDZ for Three UK and flash it to your phone via LG Flash Utility. Tested with firmware 10E (in my case had to flash it twice, as phone was FC keyboard and couldn't get past logon screen):
http://pkg03.lime.gdms.lge.com/dn/downloader.dev?fileKey=FW94J0D232WAAC14C8D217E/H81510e_00.kdz
After flashing, your phone will show OPT2 version instead of EUR. But VoLTE and 800 MHz LTE don't work. Essentialy, the firmware did not recognise your phone is from Three UK and disables it.
1. You need to root you phone. How to do it - please check other posts - I used root injection method with Ubuntu.
2. Now, you need FX and FX root addon (my choise as doesn't mess the file permissions). - get it from Google Play
3. You also need Hex Editor Free - get it from Google Play.
4. You need SD card present in your phone for backup.
1. Once you are rooted open FX and go to Root/system
In folder dev / block you will find file called mmcblk0p22
2. Copy it to your ext SD card TWICE, once in any folder as a backup, second time in the root folder - this is the one you'll work on.
3. Now open HEX Editor and edit mmcblk02p22 file exactly as on pictures attached - before and after (you're editing lines 0000aa000 to 0000a040. DO NOT TOUCH ANY OTHER LINE)
4. Save the file, and using FX copy it back to the dev/block folder (replace the file). Make sure FX has unlocked padlock at the top, otherwise won't let you override.
5. Reboot the phone.
6. Using FX explorer unpack archive.tar.bz2 to cust folder in your phone root. It contains modified H3G config files. Make sure you're using FX explorer to get the right file permissions.
7. Reboot. If you use now code to enter hidden menu - 277634#*# you will see that VoLTE settings are active.
NOTE: If you're already rooted EUR software you may try:
1. Edit mmcblk02p22
2. Edit Cust files.
3. Flash over Three's 10D firmware.
Three released 10G today, will try to flash over and see if settings stick.

thinewonk said:
LG G3 user here, willing to flash a ROM if needed to get 800Mhz data as an option when I specifically want to choose band 20 from the bands hidden menu.
I'm tempted to buy an LG G4 from Three but I'm worried their firmware might lock out some of the hidden menu functions like band selection and 800 is the lowest priority you'd hardly ever see it if you couldn't set the band.
Definitely be interested to see what other people have got working.
Click to expand...
Click to collapse
Indeed - normally to use 800 Mhz on 3UK you need to have no 1800 Mhz coverage. For VoLTE, no 3G coverage.
However, I can now confirm you can force 800 Mhz in the hidden menu.
Tap LTE bands, tap Band 20. Phone will either stick to this or lose the network. If so, go to Settings, Networks and manually select 3 LTE. Sticks then.

michalpro said:
OK, took some time to get back here, busy time..
Click to expand...
Click to collapse
Thanks Michael, we appreciate you coming back. Glad you took a while, if you had posted quickly I'd have picked up a G4, but now I've seen the LG V10 I've totally got to have that instead!

thinewonk said:
Thanks Michael, we appreciate you coming back. Glad you took a while, if you had posted quickly I'd have picked up a G4, but now I've seen the LG V10 I've totally got to have that instead!
Click to expand...
Click to collapse
I'm thinking also to get v10

Thanks michaelpro for the writeup.
I had some weird feeling yesterday as I was flashing marshmallow that you would update us with a guide
I will probably restore my TWRP backup of Three V10D, unless you think it may be possible I could root marshmallow and use the same guide?

Thanks for coming back to post your explanation, michalpro

denco1 said:
Thanks michaelpro for the writeup.
I had some weird feeling yesterday as I was flashing marshmallow that you would update us with a guide
I will probably restore my TWRP backup of Three V10D, unless you think it may be possible I could root marshmallow and use the same guide?
Click to expand...
Click to collapse
For now root possible on Marshmallow with unlocked bootloader. However, Three UK has not yet released their 6.0 soft, therefore not sure if EUR version with modified NV file would turn on the VoLTE. Three announced their software is required.
Plus, the hidden menu code from Lollipop doesn't work on Marshmallow, so we can't force or observe if it works....

How to prevent oneplus 3 from connecting to slow 850mhz band

Hi guys i wanna know that if there is any way possible to lock op3 on band 40 only i.e 2300mhz band and prevent it from switching on to low speed 850mhz band. I am on stock oxygen os 3.2.4.any help will be appreciated. Thanks

How to know - to which band our phone is connected

JumboMan said:
How to know - to which band our phone is connected
Click to expand...
Click to collapse
There is an app called netvelocity by jio. It tells the info regarding the band and other info as well

Dial *#*#4636#*#* go into phone information >> press the 3 dots menu >> choose radio bands ..
Choose band 40 from the list ....
I am using Jio as well .. It does change the band to 2300 MHz and I get about 40Mbps Instead of abysmal 2 Mbps on 850 MHz !
You need to do that every time you boot your phone .

anirudhnyg said:
Dial *#*#4636#*#* go into phone information >> press the 3 dots menu >> choose radio bands ..
Choose band 40 from the list ....
I am using Jio as well .. It does change the band to 2300 MHz and I get about 40Mbps Instead of abysmal 2 Mbps on 850 MHz !
You need to do that every time you boot your phone .
Click to expand...
Click to collapse
Setting the band 40 in this option will result in setting the same band for both sims ...
i m using normal 2g/3g sim in sim1 slot and jio sim in sim2 slot..
after selecting band 40 in that settings will result in no network for sim1(normal reliance sim)..
so , how to rectify that..??

hijagdeep said:
Setting the band 40 in this option will result in setting the same band for both sims ...
i m using normal 2g/3g sim in sim1 slot and jio sim in sim2 slot..
after selecting band 40 in that settings will result in no network for sim1(normal reliance sim)..
so , how to rectify that..??
Click to expand...
Click to collapse
Try putting Jio in Sim slot 1
I have an Airtel sim in slot 2 I still have signal In Airtel even after choosing band 40. .
---------- Post added at 07:15 PM ---------- Previous post was at 07:15 PM ----------
PS : Probably because Airtel has 2300 MHz network too ..

anirudhnyg said:
Try putting Jio in Sim slot 1
I have an Airtel sim in slot 2 I still have signal In Airtel even after choosing band 40. .
---------- Post added at 07:15 PM ---------- Previous post was at 07:15 PM ----------
PS : Probably because Airtel has 2300 MHz network too ..
Click to expand...
Click to collapse
it worked thanxxx ..
that option will only change band for sim1 ...
but how to get back to default band without restarting phone...??
Post Edited
after some times , signal for normal sim2 gone , have to restart my mobile to get network in normal sim

You can't really choose your own band.
We have some parameters in the Network, that decide the priority of which frequency band you connect to.
Generally, where Signal, quality and load allow, we let you connect to higher frequency.

anirudhnyg said:
Dial *#*#4636#*#* go into phone information >> press the 3 dots menu >> choose radio bands ..
Choose band 40 from the list ....
I am using Jio as well .. It does change the band to 2300 MHz and I get about 40Mbps Instead of abysmal 2 Mbps on 850 MHz !
You need to do that every time you boot your phone .
Click to expand...
Click to collapse
I did that that but its not setting my jio sim's frequency on 2300mhz. Its still on 850mhz. On which rom are u? I am on oxygen os 3.2.4 and this trick isn't working for me sadly:crying:

Are you able to use VoLte on Jio?

ankushgautam said:
I did that that but its not setting my jio sim's frequency on 2300mhz. Its still on 850mhz. On which rom are u? I am on oxygen os 3.2.4 and this trick isn't working for me sadly:crying:
Click to expand...
Click to collapse
I am on Sultan CM 13 .
Yes VOLTE works in Jio and OP3

anirudhnyg said:
Dial *#*#4636#*#* go into phone information >> press the 3 dots menu >> choose radio bands ..
Choose band 40 from the list ....
I am using Jio as well .. It does change the band to 2300 MHz and I get about 40Mbps Instead of abysmal 2 Mbps on 850 MHz !
You need to do that every time you boot your phone .
Click to expand...
Click to collapse
What app do you have to check the band connected. I also have jio but i do not get such high speeds.

Funk Wizard said:
What app do you have to check the band connected. I also have jio but i do not get such high speeds.
Click to expand...
Click to collapse
There is an app named netvelocity.. Just google jiostore and download it from there.. But problem for me is thay the bands are not getting locked for me from *#*#4636#*#*. The connection does get reset after selecting band 40 but netvelocity app shows 850mhz band and speed remains same as well. Only when i go outdoors then my op3 gets connected to band 40 nd i get full 4g speed of around 30-40 Mbps

ankushgautam said:
There is an app named netvelocity.. Just google jiostore and download it from there.. But problem for me is thay the bands are not getting locked for me from *#*#4636#*#*. The connection does get reset after selecting band 40 but netvelocity app shows 850mhz band and speed remains same as well. Only when i go outdoors then my op3 gets connected to band 40 nd i get full 4g speed of around 30-40 Mbps
Click to expand...
Click to collapse
Yeah that's right it tends to fluctuate that's the reason of low speeds.

ankushgautam said:
There is an app named netvelocity.. Just google jiostore and download it from there.. But problem for me is thay the bands are not getting locked for me from *#*#4636#*#*. The connection does get reset after selecting band 40 but netvelocity app shows 850mhz band and speed remains same as well. Only when i go outdoors then my op3 gets connected to band 40 nd i get full 4g speed of around 30-40 Mbps
Click to expand...
Click to collapse
In my one plus three, it doesn't show any band information
See the screenshot attached
Sent from my One Plus Three using xda premium

hijagdeep said:
In my one plus three, it doesn't show any band information
See the screenshot attached
Sent from my One Plus Three using xda premium
Click to expand...
Click to collapse
You need to enable it by clicking on More (top right corner)
If you don't have the More option then download the Netvelocity enterprise apk
Selecting band 40 from *#*#4636#*#* didn't work for me
Stuck on 850 Mhz.

ushpiy said:
You need to enable it by clicking on More (top right corner)
If you don't have the More option then download the Netvelocity enterprise apk
Selecting band 40 from *#*#4636#*#* didn't work for me
Stuck on 850 Mhz.
Click to expand...
Click to collapse
Same here.. Can't go on to band 40 even after selecting it and band 850 is giving almost 2g speeds... Everytym i have to go outside my house to download any big file.. Someone needs to solve this for us... I don't want to hate my oneplus 3 for this

selecting band 40 won't make you stop connecting to band 5,
and sadly there's no way we can lock our LTE connection to certain band yet, neither to set the preference
i understand your frustation, since my provider is also using band 5 & 40 for the LTE. If you are in rural/suburban area, it will connect to 850Mhz most of the time, since lower freq has a better penetration and coverage range.
2300Mhz mostly used in city & building, since it can give better throughput

otonieru said:
selecting band 40 won't make you stop connecting to band 5,
and sadly there's no way we can lock our LTE connection to certain band yet, neither to set the preference
i understand your frustation, since my provider is also using band 5 & 40 for the LTE. If you are in rural/suburban area, it will connect to 850Mhz most of the time, since lower freq has a better penetration and coverage range.
2300Mhz mostly used in city & building, since it can give better throughput
Click to expand...
Click to collapse
That's exactly what's happening and i am getting almost 2g speeds on 850mhz...really frustrating... Anyways i hope soon there is a solution to this problem... I just wish i could remove 850mhz band from my phone... Grrrrr

ushpiy said:
You need to enable it by clicking on More (top right corner)
If you don't have the More option then download the Netvelocity enterprise apk
Selecting band 40 from *#*#4636#*#* didn't work for me
Stuck on 850 Mhz.
Click to expand...
Click to collapse
My app have more option...and I have even enabled advanced mode , but didnt get band information....
Do u able to access band info in your OnePlus3..?