[GUIDE][PARTIAL] Unlock Additional LTE bands on Chinese & US variants of OnePlus 3

igortolk

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Jun 23, 2015
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I still can not understand how you found the function responsible for the band 7 and 8. :confused:
I want to work on my device to unlock the band 20 :fingers-crossed:
 
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otonieru

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May 7, 2011
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I still can not understand how you found the function responsible for the band 7 and 8. :confused:
I want to work on my device to unlock the band 20 :fingers-crossed:
you need to comparing the xml file between models, and take the value that is not available in one or another to later merge it to one qcn that has all values (this is the aim, its hard though :( )

A3003 normally used as reference, since it has most bands,
 

RajeshR15

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Jul 6, 2016
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VoLTE should work with JIO on 2300 (band 40) , but unfortunately you wont get band 5.

normally the issue rellies on APN set up and the rom itself,

during my test, i found that OOS has a somewhat weird baseband and nv where almost all VoLTE related value are either blank or unset-up

xiaomi do much better in this term
So does that mean I wouldn't get VoLTE on my A3000?
Will the Nougat update unlock band so that I can have the VoLTE?
 
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raykewl

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Nov 5, 2015
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So does that mean I wouldn't get VoLTE on my A3000?
Will the Nougat update unlock band so that I can have the VoLTE?
1. Hopefully we can at some point. OP & several others are figuring out the way to LTE freedom :)

2. It it were that easy, we wouldn't have this problem to begin with. It's not OS dependent.

I bought mine from the US (A3000) and I need band 3 to work in my country (Indonesia) as well.
 

RajeshR15

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Jul 6, 2016
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1. Hopefully we can at some point. OP & several others are figuring out the way to LTE freedom :)

2. It it were that easy, we wouldn't have this problem to begin with. It's not OS dependent.

I bought mine from the US (A3000) and I need band 3 to work in my country (Indonesia) as well.
I am wondering whether it's related to hardware specs or just could be made available toggling values in the next OTA update.
 

otonieru

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May 7, 2011
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So does that mean I wouldn't get VoLTE on my A3000?
Will the Nougat update unlock band so that I can have the VoLTE?
as i previously stated. VoLTE is not related to LTE band,

it's baseband and ROM related.

even if you got all bands working, it wont assure that you will have VoLTE work
 

nickw14

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Jan 9, 2015
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Any updates on unlocking band 13? I mentioned in a previous comment that I completed the operations successfully with the exception of the DFS operation "Sync LTE/LTE DIV" not giving any output. Band 13 was shown to be unlocked in Network Signal Guru

---------- Post added at 06:12 AM ---------- Previous post was at 05:48 AM ----------

Nevermind. I was able to get 4G via verizon on band 2 well enough. Band 13 is still unlocked and enabled though, so maybe it is providing support. Thanks for this tutorial, you have done a great thing!
 

Adigal

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Mar 14, 2016
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Any updates on unlocking band 13? I mentioned in a previous comment that I completed the operations successfully with the exception of the DFS operation "Sync LTE/LTE DIV" not giving any output. Band 13 was shown to be unlocked in Network Signal Guru

---------- Post added at 06:12 AM ---------- Previous post was at 05:48 AM ----------

Nevermind. I was able to get 4G via verizon on band 2 well enough. Band 13 is still unlocked and enabled though, so maybe it is providing support. Thanks for this tutorial, you have done a great thing!
But you know about imei problem right ?
 
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Benrap

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Mar 16, 2015
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Any updates on unlocking band 13? I mentioned in a previous comment that I completed the operations successfully with the exception of the DFS operation "Sync LTE/LTE DIV" not giving any output. Band 13 was shown to be unlocked in Network Signal Guru
I had the same outcome using OP3 US and band 3.
 

Azrael90

Member
Oct 14, 2011
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Any updates on unlocking band 13? I mentioned in a previous comment that I completed the operations successfully with the exception of the DFS operation "Sync LTE/LTE DIV" not giving any output. Band 13 was shown to be unlocked in Network Signal Guru

---------- Post added at 06:12 AM ---------- Previous post was at 05:48 AM ----------

Nevermind. I was able to get 4G via verizon on band 2 well enough. Band 13 is still unlocked and enabled though, so maybe it is providing support. Thanks for this tutorial, you have done a great thing!
Same as me too. Trying to unlock band 5 on a3000 cn variant. How do i restore it back to default?
 

nickw14

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Jan 9, 2015
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Ok so I discovered a problem... I was able to get LTE and use data just fine, but I unknowingly lost the ability to make and receive calls and send and receive texts. I think the phone is locking itself to just LTE and not using anything else to do those other functions. Is there a way to force a band for LTE/data and then use auto for everything else?
 

VincentJoshuaET

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Jun 5, 2016
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Request: i want to convert the NA OP3 to a Chinese one. I'm kind of confused reading the guide with the previous updates and strikes. Is there a clearer instruction written? Thank you.
 
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allluke

Senior Member
Mar 28, 2014
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Ok so I discovered a problem... I was able to get LTE and use data just fine, but I unknowingly lost the ability to make and receive calls and send and receive texts. I think the phone is locking itself to just LTE and not using anything else to do those other functions. Is there a way to force a band for LTE/data and then use auto for everything else?
At present I think we are waiting for @baskaflyfer to figure out a few things. However before the .Qcn files got taken down due to the imie changing when using them I had that problem. To fix it I ran network guru and just cleared all or something similar.
 
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DarkN3ss61

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Nov 3, 2013
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jlynx.net
This was with the full QCN file, but they figure out that the imei is encrypted so this method change you the imei, there is still no solution for this problem.
It's not the the Imei is encrypted (because it's not) it's that there is something else in the qcn which changes the output of the Imei number and we are not sure where or what it is
 
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