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I have a G920v and want to use it with ChinaTelecom that is the only CDMA carrier in China. I rooted the phone and unlock the LTE band 3 but still can't use 4G. I did much research and found Verizon would lock srlte by carriers_policy.xml in EFS or telehphony.db in /data/data. But I can't found these files in G920v. Anyone know how to do?
lostvangel said:
I have a G920v and want to use it with ChinaTelecom that is the only CDMA carrier in China. I rooted the phone and unlock the LTE band 3 but still can't use 4G. I did much research and found Verizon would lock srlte by carriers_policy.xml in EFS or telehphony.db in /data/data. But I can't found these files in G920v. Anyone know how to do?
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Are you saying you can't find the telephony.db or you can't find what you are looking for in the telephony.db?
Tulsadiver said:
Are you saying you can't find the telephony.db or you can't find what you are looking for in the telephony.db?
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Click to collapse
I found telephony.db but it 's not the file to control which carrier can use srlte.
lostvangel said:
I found telephony.db but it 's not the file to control which carrier can use srlte.
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Have you looked into service mode?
http://forum.xda-developers.com/verizon-galaxy-s6/general/enabling-using-servicemode-t3109579
Tulsadiver said:
Have you looked into service mode?
http://forum.xda-developers.com/verizon-galaxy-s6/general/enabling-using-servicemode-t3109579
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Click to collapse
Yes. I read the thread and try following intro. It can enable LTE BAND 3 but can't make SRLTE works. The phones from VZW often limited using LTE by other CDMA carriers by a xml file named carriers_policy.xml. To find it, you must connect the phone to QPST and run the EFS explorer. It is placed in /policyman. But I can read any by EFS Explorer with my SM-920V. A error shows that the format of EFS partition can't be recognized.
lostvangel said:
Yes. I read the thread and try following intro. It can enable LTE BAND 3 but can't make SRLTE works. The phones from VZW often limited using LTE by other CDMA carriers by a xml file named carriers_policy.xml. To find it, you must connect the phone to QPST and run the EFS explorer. It is placed in /policyman. But I can read any by EFS Explorer with my SM-920V. A error shows that the format of EFS partition can't be recognized.
Click to expand...
Click to collapse
What is QPST?
I am curious if the VZW S6 actually has the proper antenna and path for Band 3.
I'm sure the chipset has support, but it doesn't seem like there is a resource that specifies what the bands the phone actually can support.
Tulsadiver said:
What is QPST?
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Click to collapse
A Qualcomm's tool to manager setting such as efs, nv items, etc which make what communication funtions works.
xdadevnube said:
I am curious if the VZW S6 actually has the proper antenna and path for Band 3.
I'm sure the chipset has support, but it doesn't seem like there is a resource that specifies what the bands the phone actually can support.
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Click to collapse
I confirm Band 3 works. After following the post about Service Menu to unlock Band 3 I tested FDD LTE of ChinaUnicom and it worked well. But this carrier run a GSM network so I needn't do more than adding its APN. But for CDMA network, some other operations need to be done.
lostvangel said:
I confirm Band 3 works. After following the post about Service Menu to unlock Band 3 I tested FDD LTE of ChinaUnicom and it worked well. But this carrier run a GSM network so I needn't do more than adding its APN. But for CDMA network, some other operations need to be done.
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Thanks, I think it is crazy how there is seemingly no official resource that lists exactly what bands a phone could support. The FCC docs only show bands 13, 4, and 2. Who knows what LTE band capabilities a modern phone might support?
lostvangel said:
I confirm Band 3 works. After following the post about Service Menu to unlock Band 3 I tested FDD LTE of ChinaUnicom and it worked well. But this carrier run a GSM network so I needn't do more than adding its APN. But for CDMA network, some other operations need to be done.
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Click to collapse
Can you clarify, to use LTE band 3 on a GSM based network, does anything need to be done to the phone (besides the APN)?
(after trying to use the HTC One M8 on Telstra LTE in AU didn't work, I was hoping the S6 would!)
xdadevnube said:
Thanks, I think it is crazy how there is seemingly no official resource that lists exactly what bands a phone could support. The FCC docs only show bands 13, 4, and 2. Who knows what LTE band capabilities a modern phone might support?
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Click to collapse
If you can operate NV items by QXDM, To enable bands not listing in FCC isn't too difficult.
levilib said:
Can you clarify, to use LTE band 3 on a GSM based network, does anything need to be done to the phone (besides the APN)?
(after trying to use the HTC One M8 on Telstra LTE in AU didn't work, I was hoping the S6 would!)
Click to expand...
Click to collapse
At first, you need following the post to enable HiddenMenu. In service menu you can find the place to enable some additional bands which include Band 3.
lostvangel said:
At first, you need following the post to enable HiddenMenu. In service menu you can find the place to enable some additional bands which include Band 3.
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So basically, unless this phone is rooted, I won't have access to band 3?
Sent from my SM-G920V using Tapatalk
lostvangel said:
If you can operate NV items by QXDM, To enable bands not listing in FCC isn't too difficult.
Click to expand...
Click to collapse
In other words, bands listed here are actually fully supported by the device? My impression is that the chipset may supported the bands, but that doesn't mean there is an full RF transceiver and antenna path.
try this :
*#27663368378#
go to nas, and choose ur preferred network. reboot. if no signal, ##3282# go to bsr, tap the get lte file, tap until you got the signal and everything works.
Type ##3282# and you will find a option to enable the hiddenmenu. I have tested that 's not need to be rooted.
It's truth that enabling every band is impossible. But at least I know Band 1 and 3 are actually enabled. I tested to confirm it. Of course, there is some other operations to enable band 1, but it's not my purpose for this post.
Now I want to get help from someone to find a file like /efs/policyman/carriers_policy.xml in Sony Z3v and Moto Droid Turbo. It can be found by QPST EFS Explorer. But for G920V or G925V, EFS Explorer can't take effect.
lostvangel said:
I confirm Band 3 works. After following the post about Service Menu to unlock Band 3 I tested FDD LTE of ChinaUnicom and it worked well. But this carrier run a GSM network so I needn't do more than adding its APN. But for CDMA network, some other operations need to be done.
Click to expand...
Click to collapse
Can you tell us how you get the band 3 working? If I go to service mode and if I want to activate band 3 the "*" never stays next to the band 3 line. I works for band 2,14,17, all line as well.
Thanks in advance
*** edit ***
running stock version AOC3
in service mode/UE SETTING MENU/STTING/SYSTEM/"LTE BAND ON/OFF" When I try to enable band 3 I get the message : "not support". When I try B4: I get the choice between enable and disable.
Do you run a newer version than me lostvangel? Did you enable LTE bands with the menu LTE BAND ON/OFF?
lostvangel said:
I confirm Band 3 works. After following the post about Service Menu to unlock Band 3 I tested FDD LTE of ChinaUnicom and it worked well. But this carrier run a GSM network so I needn't do more than adding its APN. But for CDMA network, some other operations need to be done.
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Click to collapse
I've got a ChinaUnicom 4G sim card, but after one-week-long struggle,I still can not unlock FDD LTE of ChinaUnicom on my verizon S6. Could you share your knowledge about how to unlock band 3 for ChinaUnicom 4G? I will appreciate it very much!
Thx!
To access the hidden menu dial *#546368#*910#
McQueefus said:
To access the hidden menu dial *#546368#*910#
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Doesn't work for me on my ATT version.
What options can you do with this anyways?
Sent from my LG-H910 using Tapatalk
You can test things such as your screen and data and can change a few settings
spexwood said:
Doesn't work for me on my ATT version.
What options can you do with this anyways?
Sent from my LG-H910 using Tapatalk
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Click to collapse
It works on mine.
McQueefus said:
You can test things such as your screen and data and can change a few settings
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Click to collapse
Thanks. Is there a screen to change the connection technology e.g. 2G only, 3G only, and LTE only?
If there is I couldn't find it. I would think it would be under field test and under modem settings but I have not been able to change it. Please let me know if you find a way
haris163 said:
It works on mine.
Thanks. Is there a screen to change the connection technology e.g. 2G only, 3G only, and LTE only?
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Click to collapse
Weird... I was trying the code in the Quickslide dialer, and it was saying that it was an invalid MMI code. I just tried the code again in the normal full size dialer and it worked without any issues. Hmmmm
Well glad you got it to work, I have tried to edit the apn settings for tethering but it didn't seem to work
haris163 said:
Is there a screen to change the connection technology e.g. 2G only, 3G only, and LTE only?
Click to expand...
Click to collapse
I downloaded the LG V10 Hidden Settings App
https://play.google.com/store/apps/details?id=you.love.v10.hidden.settings
The menu it pops using this under the Mobile Network has the option to select combinations of GSM, WCDMA, LTE.
Is there an app that can effectively change the network to cdma 3g only for lg v20 h910
Deniro254 said:
Is there an app that can effectively change the network to cdma 3g only for lg v20 h910
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Click to collapse
If by cdma you mean WCDMA, see my previous post.
Sent from my LG-H910 using Tapatalk
Doesn't work
I downloaded the app from playstore and switched from 4g to 3g only and it still connected 4g...is there any other solution??
Deniro254 said:
I downloaded the app from playstore and switched from 4g to 3g only and it still connected 4g...is there any other solution??
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Click to collapse
If it is a bigger "4G" symbol, then it is WCDMA/HSPA. When you are on LTE the "4G" is smaller and it has the word "LTE" under the "G".
You should be 3G or WCDMA flavor of 4G if you select the WCDMA option.
Sent from my LG-H910 using Tapatalk
Soo true... thank you so much
I got the Korean Telecom version and any country I go I can only get 3g. If I use 4g switcher and set to LTE only it does not connect.
Is there any way I can unlock LTE?
Answering my own question,
*#2683662# goes into the menu for service mode.
Then UE settings and infotmation, setting, protocol, nas, network control.
Here I can see band selection and band disable. Still figuring out what these do.
hi
did you find it out? same problem
forsberg78 said:
I got the Korean Telecom version and any country I go I can only get 3g. If I use 4g switcher and set to LTE only it does not connect.
Is there any way I can unlock LTE?
Click to expand...
Click to collapse
What country are you in and with which network? Which particular bands are you trying to unlock?
I'm in Canada and want to see if I can get LTE band 66.
Sent from my SM-G955N using Tapatalk
forsberg78 said:
Answering my own question,
*#2683662# goes into the menu for service mode.
Then UE settings and infotmation, setting, protocol, nas, network control.
Here I can see band selection and band disable. Still figuring out what these do.
Click to expand...
Click to collapse
What should I change in this menu so that I can unlock the network in Brazil?
Hello.
Anyone have one and can help me? I cannot get LTE on Tmobile no matter what APN settings I use. I know I have LTE here so I know it's not the band.
Thanks.
flash tmobile firmware on it
yeltrah123 said:
flash tmobile firmware on it
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Click to collapse
Yeah don't listen to this guy. The F model is exynos correct? That means no Tmobile software.
The F model you bought might be region locked so it may not work in the USA right now without unlocking it. I know there have been other threads about this not sure if a solution has been found or not.
ShrekOpher said:
Yeah don't listen to this guy. The F model is exynos correct? That means no Tmobile software.
The F model you bought might be region locked so it may not work in the USA right now without unlocking it. I know there have been other threads about this not sure if a solution has been found or not.
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Click to collapse
Yeah I was not listening to him cause this isn't my first rodeo. I bought it region unlocked. Do we know if band 12 is supported if the F or FD?
jdubya45 said:
Hello.
Anyone have one and can help me? I cannot get LTE on Tmobile no matter what APN settings I use. I know I have LTE here so I know it's not the band.
Thanks.
Click to expand...
Click to collapse
i have the 955FD model and it works just fine with T-Mobile USA. did you call T-Mobile to ensure your account is provisioned for LTE access? (I assume you're in the USA). where did you purchase your 955F model S8+?
cortez.i said:
i have the 955FD model and it works just fine with T-Mobile USA. did you call T-Mobile to ensure your account is provisioned for LTE access? (I assume you're in the USA). where did you purchase your 955F model S8+?
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Hey Cortez. Good to hear this as I have the FD as well. Bought it on eBay from a trusted seller and it is region unlocked. I have LTE provisioned. So...i have "4G" and not 4G+ although I have seen both. What do you show and what band are you on?
jdubya45 said:
Hey Cortez. Good to hear this as I have the FD as well. Bought it on eBay from a trusted seller and it is region unlocked. I have LTE provisioned. So...i have "4G" and not 4G+ although I have seen both. What do you show and what band are you on?
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Click to collapse
4G = LTE. Go to SETTINGS>ABOUT PHONE>STATUS>SIM CARD STATUS and you should see LTE under Mobile network type. that's how i determine LTE access... there's also an app name LTE Discovery that can be used to determine which band you're using. by the way, i believe 4G+ is LTE-A, or carrier aggregation, which is faster than standard LTE..
cortez.i said:
4G = LTE. Go to SETTINGS>ABOUT PHONE>STATUS>SIM CARD STATUS and you should see LTE under Mobile network type. that's how i determine LTE access... there's also an app name LTE Discovery that can be used to determine which band you're using.
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Thanks bro. VoLTE working?
jdubya45 said:
Thanks bro. VoLTE working?
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not sure... i do know that when i use my T-Mo SIM (vs ATT) calls are super clear. i'm using my ATT account at the moment because i'm tethering my laptop and TIDAL HiFi music in my car. (my monthly data allowance with ATT is 100GB + rollover).
cortez.i said:
not sure... i do know that when i use my T-Mo SIM (vs ATT) calls are super clear. i'm using my ATT account at the moment because i'm tethering my laptop and TIDAL HiFi music in my car. (my monthly data allowance with ATT is 100GB + rollover).
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Click to collapse
If it drops to H/H+ then you don't have VoLTE. If it stays 4G then you have VoLTE.
Tidbits said:
If it drops to H/H+ then you don't have VoLTE. If it stays 4G then you have VoLTE.
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Click to collapse
Just checked and it drops to H.
Can we co firm if TMo volte is supported?
jdubya45 said:
Just checked and it drops to H.
Can we co firm if TMo volte is supported?
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Click to collapse
Not supported as it dropped to H.
Sent from my SM-G955U using Tapatalk
Tidbits said:
Not supported as it dropped to H.
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It should be if band 12 is supported. VoLTE is software driven also so maybe a custom ROM will add it in. Waiting...
jdubya45 said:
It should be if band 12 is supported. VoLTE is software driven also so maybe a custom ROM will add it in. Waiting...
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Click to collapse
Wouldn't matter on band support. VOLTE should work on all supported LTE bands for T-Mobile. If it drops to H then that means there is not VOLTE support for T-Mobile.
Sent from my SM-G955U using Tapatalk
Tidbits said:
Wouldn't matter on band support. VOLTE should work on all supported LTE bands for T-Mobile. If it drops to H then that means there is not VOLTE support for T-Mobile.
Sent from my SM-G955U using Tapatalk
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It should be using the Tmobile csc to get Volte support..
I have US and international version, US version supports Volta same sim not supporting in international version... Problem is due to the Csc configured to the international version won't support Tmobile Volta..
Unless we have success in flashing tmobile Csc it won't work same as WiFi calling
Sent from my SM-G955F using Tapatalk
`SBR` said:
It should be using the Tmobile csc to get Volte support..
I have US and international version, US version supports Volta same sim not supporting in international version... Problem is due to the Csc configured to the international version won't support Tmobile Volta..
Unless we have success in flashing tmobile Csc it won't work same as WiFi calling
Sent from my SM-G955F using Tapatalk
Click to expand...
Click to collapse
Goes back to what I said. Wouldn't matter the band. If the support isn't there which as you pointed out it doesn't support the CSC.
Sent from my SM-G955U using Tapatalk
ShrekOpher said:
Yeah don't listen to this guy. The F model is exynos correct? That means no Tmobile software.
The F model you bought might be region locked so it may not work in the USA right now without unlocking it. I know there have been other threads about this not sure if a solution has been found or not.
Click to expand...
Click to collapse
whoops lol. Forgot if F or FD variants of the S8+ uses Exynos 8895, and U.S. models use Snapdragon 835.
Hello XDA community,
I have a Mi Mix 3 Palace Edition phone and I am using AT&T for my carrier. The phone came with a Chinese ROM but I flashed it with a Global one. I have been trying to get 4G + LTE to work on the phone but so for all I am able to get is 3G. I have contacted ATT and was told that my account was not setup for it. So ATT's advanced technical support made sure the IME/my account on the phone was LTE enabled. I am still stuck on 3G. I have selected the correct APN for it but I do not connect.
What am I missing?
Preferred network Type?
preferred network LTE.
raven213 said:
Preferred network Type?
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Click to collapse
walkrye said:
preferred network LTE.
Click to expand...
Click to collapse
Did you checked if your apn is correct?
Try selecting 4G network manually. I faced issue like that initially with ATT MVNO. After seleting 4G network manually I am geetting 4G+
In the Settings, go to About Phone, and tap the storage until it brings you to the SIM and WiFi screen. Tap on the Phone Information for the SIM you are using and set that Network Type to UMTS/LTE.
AT&T blocks any device you did not purchase directly through them from using VoLTE and WiFi Calling. 4G is also LTE, so if you see the 4G icon, that is also LTE and 4G+ is also LTE-A.