yashsingh1/xdaforums huggingface dataset:
[OnePlus 2 Q&A, Help & Troubleshooting] sunilromy:
ok i came from lg g4 sprint. As i was searching about band priority list. i was able to enable band 3 and band 40 for me, but no lte. so i am interested in editing band priority list.

qcn is a complete back of nv.. good for digging but i guess i know easy way just to edit band priority list.

This is the data in my priority list

19 29 1a 02 04 05 0c

its usa sprint lg g4.

so enable bands are 25,41,26,02,04,05 and band 12 as per my band priority list.. .. if someone can tell me how to decode or edit it ? then it will be easier for me ??

ok this is the data of @ hansvomland guy who shared chinese band preference list.

28 26 27 29 01 03 07

idk which bands are enabled on his phone. . plz if someone know bit about decoding?

---------- Post added at 09:59 AM ---------- Previous post was at 09:55 AM ----------

Try to enable band from qxdm.. via nv browser, if dfs doesnt work. in both dfs or qxdm, if value doesnt stick, write it and do force restart. by power volume or do adb reboot, this trick use to work for me on htc m9..
[OnePlus 2 Q&A, Help & Troubleshooting] sunilromy:
ok guys.. i sucessfully changed my band priority list... let me check 4g, if it works..

edit doesnt work.. i edited, both nv 6828, 6829 and 6828 and this both on my phone

band_priority

lte_bandpref

i am swapping details from [MENTION=7409210]hansvomland[/MENTION] qcn file.. mate, i need your help? i need complete folder of lte from your nv ?
[OnePlus 2 Q&A, Help & Troubleshooting] hansvomland:
can you tell me, what i have to do, step by step, cause am a newbie :silly:
[OnePlus 2 Q&A, Help & Troubleshooting] sunilromy:
can you tell me? you are on which carrier? and which band your phone supports? and which band you are looking for? 4g ever worked on your phone?
[OnePlus 2 Q&A, Help & Troubleshooting] sunilromy:
hey

first download this..

http://www.cdma-ware.com/workshop/nv-items/NV-items_reader_writer.rar

connect it. Select nv item range from 6640 to 6710 and once it got read, save it and upload it..

Thanks..
[OnePlus 2 Q&A, Help & Troubleshooting] hansvomland:
cant connect with the nv itmens reader...: Falied... Unable to connect to com4 port.

but i am connected with qpst.

in germany i got lte only in big citys. Outside where i need the band 20 (i think), i got no lte.

supported bands:

GSM: 850, 900, 1800, 1900MHz

WCDMA: 1/2/5/8

TD-SCDMA: 34/39

TDD-LTE: 38/39/40/41

FDD-LTE: 1/3/7

Bands i need:

GSM: 850, 900, 1800, 1900MHz

WCDMA: Bands 1/2/5/8

FDD-LTE: Bands 1/3/5/7/8/20

TDD-LTE: Bands 38/40/41

I hope u can help me. Thanks
[OnePlus 2 Q&A, Help & Troubleshooting] sunilromy:
First disconnect qpst. Or quit it. After that try connecting it. Btw i extracted those nv from your qcn files so no need.

You are able to enable disable band? Or it isnt sticking ?
[OnePlus 2 Q&A, Help & Troubleshooting] hansvomland:
I try to change the LTE values with qxdm, like in other guides(xiami, htc m9) but after Reboot, the old values were resoterd...
[OnePlus 2 Q&A, Help & Troubleshooting] xda C.T.:
I successfully unlocked LTE band.

My ROM is RESURRECTION REMIX M by Shreesha.Murthy build 4/26.

You need this ROM, because the file "rmt_storage" no need to patch. This is the key to save the unlock band data.
[OnePlus 2 Q&A, Help & Troubleshooting] gps3dx:
PROOF IS MISSING - "rmt_storage" is NOT modded

[MENTION=7312050]xda C.T.[/MENTION] - care you share a PROOF for your claim ?

please upload here a screenshot of your model ( like A2005 for the US version of OPT ) and another screenshot taken from that LTE Discovery APP which can show the current LTE band you're using.

AFAIK, you're probably right that the "secret" in retaining the LTE NV might sits in "rmt_storage".

AFAIK, oneplus have NOT released as opensource the code for compiling that file for OPT, in contrast to OPO, which made it possible to "hack" it for them ( OPO ).

EDIT:

i've MD5 compared my current rom ( temasek latests ) "rmt_storage" to the "rmt_storage" from ResurrectionRemix and the files are A MATCH ( same value of C86C8CF743C267607CD9E74820CFECB8 in both )

Thus, i' sorry to say, but your report about being able to save value of NV item 6828 is NOT TRUE.

you probably uses a LTE band that is already open on your OPT model, and you've made a mistake to think you'd unlocked the other model's LTE bands that isn't available on your model
[OnePlus 2 Q&A, Help & Troubleshooting] xda C.T.:
You are right!

I try to reflash the rom, and find that RR rom can't save the unlocked data. I re-simulated the successful environment state, and find the key to save the unlocked data is Boeffla-Kernel! You guys need to flash Boeffla-kernel 5.0 alpha 10 for CM13, and use Boeffla-Config APP to set SELinux to permissive mode.
[OnePlus 2 Q&A, Help & Troubleshooting] hansvomland:
Can u share a link where I can find that kernel to download, can I Flash that kernel to the oxygen 3.0? And can u explain step by step what I have to do pls? Thanks, i hope it works for me
[OnePlus 2 Q&A, Help & Troubleshooting] gps3dx:
Thank you for you comment.

care you share a PROOF for your claim this time ? ( about Boeffla kernel )

please upload here a screenshot of your "settings->about->model ( so we can see your OPT model, e.i A2005 for the US version of OPT ),

AND, another from that LTE Discovery APP which can show the current LTE band you're using.

Big thanks.
[OnePlus 2 Q&A, Help & Troubleshooting] xda C.T.:
I can't to proof. Because when I flash Boeffla kernel, the device model become unknown. If you want to unlock LTE band, the only thing you need to do is try it!
[OnePlus 2 Q&A, Help & Troubleshooting] gps3dx:
Thank you for the screenshots.

My bad... the settings->about info can be altered through build.prop that comes with each rom.

thus, the only way to validate your model is to open the back shell of the phone and to read the label: A200X ( where X is either 3 for EU, 5 for US and 1 for CN model )
[OnePlus 2 Q&A, Help & Troubleshooting] xda C.T.:
What you need is to try .

Lie to you I do not get any benefit .

I just give you a way to achieve what you want to do .
[OnePlus 2 Q&A, Help & Troubleshooting] gps3dx:
i'm sorry if I made feel not welcome, that wasn't my intentions.

i'm a skeptical person in general also because as i'm a chemist, beside being android freak.:o

It will really help me and the rest of the community to know your OPT model(EU/US/CN). :)

Can you please also tell us what was the orig 6828 NV item before you changed it ?

Thank you.

P.S - just so you know, any input, even if one isn't sure 100%, is a source for others for inspiration, hope and a path further to look into . ;)
[OnePlus 2 Q&A, Help & Troubleshooting] yasan:
Guys there is no way the unlock a2005 eu bands. I think US version has a different modem hw.
[OnePlus 2 Q&A, Help & Troubleshooting] M4t3s:
Hey guys, I've read entire thread...beacuse that what you should do, right? :D and to be honest, I am getting mixed messages. Many times, it was written, you can unlock LTE band(s), but your LTE connection will not work. Why would you want to unlock them then??? It does not makes sense to me. I bought second-hand OPT few days ago and did not checked right for the version. I needed EU version, but ended up with CH. Band 3 is working fine, but only in few places in whole country. Crucial for Czech republic is band 20 (800 Mhz). Unfortunately, it is missing in CH version. If I get to extract the config file for you guys, is it possible then to apply EU config for me? I am starting to think it is a lot of work without not that much luck. You are saying that US version has different HW, do you tihnk that CH and EU have the same? If yes, why wouldn't they just made two versions of device?

Thanks for everything and mostly for your effort :)
[OnePlus 2 Q&A, Help & Troubleshooting] hansvomland:
Are there no ideas? Got the same Problem...
[OnePlus 2 Q&A, Help & Troubleshooting] gps3dx:
well now OPT community... HAVE SOME FAITH IN XDA !

Good news to us all !

OnePlus release OxygenOS Sources

more specific HERE.

Now... we just need someone to figure out how to enable NV-items change to stick....

EDIT:

seems that although it is good news for us OPT community ( cuase it means creating and mod custom rom is now easier for developers ) it is a bad news for us as ONEPLUS don't gonna release rmt_storage sources ( read update on the ~22.6.16 ).
[OnePlus 2 Q&A, Help & Troubleshooting] gps3dx:
GOT "6828 LTE BC Config" changes to STICK AFTER REBOOT !

Well... good news and bad news...

I hack the EFS partition in a way that allows NV item "6828 LTE BC Config" to

STICK AFTER REBOOT

( by HEX editing of official "static_nvbk.bin" ).

even so, although I edit it with different number (i.e replaced the default hex value of DB0801 ) - you can still change NV item "6828 LTE BC Config" to whatever value, reboot,

AND IT STICKS !

REQUIREMENTS:

phone(HW/SW)-based:

*MUST DO * -

BACKUP EFS PARTITION

USING TWRP

AND

ANOTHER APP LIKE QPST

I presume, YOU HAVE ALREADY INSTALLED LATEST OFFICIAL OXYGEN (OOS) FIRMWARE v3.0.2

psychological-based req:

* THIS FORUM NEED VOLUNTEERS TO TRY THE VARIOUS MODS/HACKS PROVIDED.

* THIS FORUM'S HACKS/MODS/NEEDED TO USED TOOLS & SKILLS ARE HIGHLY ADVANCED - DO YOU HAVE THE REQ SKILLS AND CARE TO AID OPT COMMUNITY ?

* YOU SHOULD BACKUP ANYTHING EXIST ON THEIR DEVICE BEFOREHAND.

* PLEASE DON'T PERFORM ANYTHING YOU DON'T UNDERSTAND IF YOU DON'T KNOW HOW TO BACKUP & RESTORE YOUR DEVICE, ESPECIALLY ANY NV_ITEM / EFS OR ANY OTHER PARTITION.

phone-live-based req:

YOU MUST READ THE DISCLAIMER

DISCLAIMER

HOW TO:

Just flash the "MODDED_EFS_FOR_OPT.zip" using TWRP and reboot.

NO need to wipe dalvik/cache for it to work. ( in truth, I never tried to do that after installing the modded EFS ).

if you want to go back to any prior EFS, use YOUR OWN EFS BACKUP FILE that you've created in advanced, or use the attached "ORIG_EFS_from_OOS_v3.0.2" that I took from official OOS v3.0.2.

What I tried to do when I had "6828 LTE BC Config" values to stick after reboot ( and

failed

, so I either got

NO LTE

on band 3 or

got bootloop

as I switched prefered network to LTE using the *#*#4636#*#* ) was:

tried placing "6828 LTE BC Config" values of ( hex byte-swaped ): D50008 / D5000800A001 / 4D0001000A / DF201210E001

with either of the above, I changed "65633 LTE band preference" to values ( and got bootloop as I switched prefered network to LTE ): 0x000001A0000800D5 / 0x000001A0000000C5

(The latter is due to the warning about possible usable band in THIS GUIDE)

tried to use the values from THIS GUIDE

i've added to "build.prop" the line "ro.product.model=ONE A2001" as my OPT is A2005 and I try to get LTE band 3 to work.

don't forget that when you change NV items values,

you MUST reboot

( DON'T soft-reboot ) in order for the phone to apply the changes. ( I also suspect that sometimes you MUST power-off... not just reboot)
[OnePlus 2 Q&A, Help & Troubleshooting] SokRatha:
[MENTION=2311359]gps3dx[/MENTION], sorry I cannot catch your words clearly, what is the bad news?

What I can understand the good news is that we are able to unlock LTE (don't know which band is that) on OPT.
[OnePlus 2 Q&A, Help & Troubleshooting] gps3dx:
The BAD news is that no matter the value of NV_item 6828, I couldn't get LTE to work - as I guess more modification to the EFS/nv items is needed (i.e more NV_items should be changed to get LTE to work, but AFAIK, any other NV items does NOT got the "not stick after reboot" issue...).

thus, we need more ppl to try to play with various NV items till someone get the right combination of NV items to get band 3 on US model ( A2005 ).

also, we need more ppl to try my modded EFS file, so we can all be sure that it finally do solves the 6828 value's stickiness issue after reboot.
[OnePlus 2 Q&A, Help & Troubleshooting] gps3dx:
SIMPLE HELP NEEDED:

Can anyone with INTERNATIONAL OPT (A200

3

) can please tell the following:

Please run the following ADB command:

getprop | grep rf_version

Please tell me the result

THANKS !

EDIT: nevermind... found it... i guess..
[OnePlus 2 Q&A, Help & Troubleshooting] SokRatha:
progressing...
[OnePlus 2 Q&A, Help & Troubleshooting] gps3dx:
well... do you mind to try my patch yourself and see if the NV item 6828 retain after reboot ?

p.s - about my last comment... I think what we should search now is a way to cause the A2005 to be A2003.... all the difference is the "ro.boot.rf_v1" build.prop

SOURCE

.... from where does the phone get this 14/24/34 numbers ?!?!??

whoever find this... might unlock LTE band 3 as well.
[OnePlus 2 Q&A, Help & Troubleshooting] OSM:
Some comments from my research (witch unfortunately did not help unlocking LTE band 3 yet).

1. Retaining the NV values after change: it is not needed to use modded static_nvbk. you can simply change the values, dial *#268# -> select NV parameters -> Static NV Foorce Backup. See here.

2. Changing NV item is not enough, as there are a band priority file in the EFS, witch is different for each version. Changing it, did not help as well.

3. Checking the NV/EFS of EU Vs US versions, it seems that many calibration items are missing for the non supported band (I guess this calibration id done during manufacturing of the device). Copying band 3 related values from EU device to US device, did not help.

4. Setting the rf_v1 is done by aboot, it is possible yo change its value, however it did not help. Please keep in mind that you can not change the aboot, since it is signed. See here. However it could be possible to change it, is someone finds out what part of the nand is it based on

I am not a qualcomm expert and I am not sure how important is the band priority list file, and the calibration parameters in the EFS/NV value. but my guess, is that this is the reason why changing only nv item 6828 is not enough.
[OnePlus 2 Q&A, Help & Troubleshooting] gps3dx:
Got a OnePlus OFFICIAL official response from one of their System Engineer, as follows:

I responded with a request for a solution for the missing LTE band 3 on the A2005 ( please note that this is this forum main purpose ).
[OnePlus 2 Q&A, Help & Troubleshooting] SokRatha:
Sound like I dont need to test anything at this moment. Frankly, [MENTION=2311359]gps3dx[/MENTION], I am a NOOB, I am scary of my 350$ fly away no return if something go wrong with my phone.
[OnePlus 2 Q&A, Help & Troubleshooting] gps3dx:
Can't help ?-> it's ok -> but PLEASE don't spam this forum.

A. I think you should read the very popular warning, found in about any custom rom/mod found on XDA...this forum's mods/hacks is not different.

The warning generally says something like:

@original source credit: benschhold, creator of temasek's unofficial OPT ROM

B. Your last post doesn't help this community: no new info provided, trial success/fail story.

If you don't want to aid this community, it is OK, and understandable.

BUT there is no need to publicly update the rest of the world about that - just have patience and wait for the solution/update about unlocking band 3.

C. if you don't have the req skill to mass safely with your OPT, you can still aid this community by sending ONEPLUS company request email so they unlock band 3.

D. I guess I should write it for others, as it is clearly not understood for granted:

* THIS FORUM NEED VOLUNTEERS TO TRY THE VARIOUS MODS/HACKS PROVIDED.

* THIS FORUM'S HACKS/MODS/NEEDED TO USED TOOLS & SKILLS ARE HIGHLY ADVANCED - DO YOU HAVE THE REQ SKILLS AND CARE TO AID OPT COMMUNITY ?

* YOU SHOULD BACKUP ANYTHING EXIST ON THEIR DEVICE BEFOREHAND.

* PLEASE DON'T PERFORM ANYTHING YOU DON'T UNDERSTAND IF YOU DON'T KNOW HOW TO BACKUP & RESTORE YOUR DEVICE, ESPECIALLY ANY NV_ITEM / EFS OR ANY OTHER PARTITION.

* NOTE AGAIN THE ABOVE DISCLAIMER
[OnePlus 2 Q&A, Help & Troubleshooting] gps3dx:
Well... another update from that OP engineer: (SOURCE)

Now we just need to confirm this through teardown images of A2005....through knowing the antenna model ( might be manufactured by "Skyworks", so that might help detecting it ) we could know for certain whether indeed this is the last word about it.

there are some teardown of OPT in the web... but I cannot say whether they belong to A2005 or or the other two models.

does someone planning on fixing his/her A2005 in the vicinity period ?
[OnePlus 2 Q&A, Help & Troubleshooting] iharryghuman:
hello,

i have an oneplus2 A2003 indian model .. 2+ months back after flashing a rom i lost my imei2 .. which now shows 0 .. i had no efs backup(noob me) .. after trying every possible thing i came to know qcn has imei stored.. is that right? and can i flash someone's qcn file to get my imei back ? after editing it obv
[OnePlus 2 Q&A, Help & Troubleshooting] pitrus-:
If someone knows where the second IMEI is stored in the QCN dump, please share so I know where to type mine in again. First IMEI is there and working just fine, but can't seem to find any nv item for secondary IMEI.
[OnePlus 2 Q&A, Help & Troubleshooting] SokRatha:
FYI,

I am living in a country where most of carrier using B3 for what is so called 4G. I accidentally bought a 1+2 from USA without noticed it doesn't support B3, so I live my life with 3G only on my 1+2 since day one.

But recently, I received an OTA update from 1+ and suddenly after I finished update, the phone booted up with 4G sign on the signal bar, I was really surprised and pleased.

This is just for information and hopefully this all happen to all of you who seeking B3 support on 1+2 (A2005).
[JASJAR, XDA Exec, MDA Pro General] matt1971:
Hi,

I have recently locked my phone to only use 3g connection.

I have noticed a couple of times that whilst speaking on the phone (in the clamshell state) that the other person sometimes goes feint and sort of breaks up then the voice comes back stronger!

Is this something inherent with phone call on a 3g connection? BTW my radio ROM 1.13 on WM5

Thanks Matt
[Nexus 6 Themes and Apps] quailallstar:
Has anyone replaced the stock Google animation with the Motorola globe found on other Motos? Anyone have the file? ;)
[Nexus 6 Themes and Apps] Jfree3000:
http://xdaforums.com/showthread.php?t=3071933
[Verizon Samsung Galaxy S 4] Exroid:
I've been able to downgrade firmware in the past by removing knox from the odin flashable tar file except for now I think samfirmware.com didnt sign the OC1 boot image when I go to flash through odin it hangs on boot.img then fails and gives me an error that says secure check failed. I've done some research and seem to find this error means the boot.img isn't signed. Would it be possible to flash any boot.img that I made unsecure meaning always root in terminal. To root OF1 firmware
[Verizon Samsung Galaxy S 4] XxD34THxX:
Nope. qfuse or similar was blown.
[Verizon Samsung Galaxy S 4] Exroid:
I've done it, I will be able to downgrade from OF1 to OC1 then root from there doing this all from my new raspberry pi 2 model b running raspbian. All i have to do is remove knox bootloader and flash boot.img, recovery.img, system.img.ext4, userdata.img, and cache.img with heimdall. did a test by just flashing the oc1 boot.img and was successful without tripping knox then flashed boot.img for OF1 firmware and phone boot back to the stock OF1 rom. will keep everyone updated it might be a little hard with only 2.9 GBs to work with (thanks raspberry pi sdcard-_-) im waiting on my 2.5 ssd to usb adapter(china)
[Verizon Samsung Galaxy S 4] klabit87:
I could make an Odin package later tonight that will accomplish this as well if you believe users will use it.
[Verizon Samsung Galaxy S 4] klabit87:
Anybody with OF1 bootloader willing to test?

The Odin package I have is the exact same as Exroid method with Heimdall.

Only a little but simpler for those that don't like commandline and prefer to use Odin.
[Verizon Samsung Galaxy S 4] kwcummins22:
I am. Tired of not having root.

I am
[Verizon Samsung Galaxy S 4] klabit87:
Pm sent

Thanks.
[Verizon Samsung Galaxy S 4] bkkzak:
I'd love to help.

I have full stock OF1 that I took through OTA. Been pulling my hair out not having root. Let me know where to get the .md5 and I can flash with Odin and let you know the results.
[Verizon Samsung Galaxy S 4] klabit87:
Sorry been busy.

Pm sent and thanks for your interest.
[Verizon Samsung Galaxy S 4] sins07:
Heimdall is obsolete, use Rwilco tutorial to create your own odin flashable tar. heimdall is garbage.
[Verizon Samsung Galaxy S 4] klabit87:
Heimdall is very useful in its own way.

And making our own odin flashable tar has already been done just hasn't been working.

Still looking at possibilities but doesn't look good.
[Verizon Samsung Galaxy S 4] woody.tirol:
I would like to test it out too.
[Verizon Samsung Galaxy S 4] toonmaster74:
I would like to test and try!

Hopefully it will work and ill be able to root on OC1 :)
[Verizon Samsung Galaxy S 4] klabit87:
Sorry this has come to an end.

Muniz_ri has one at the bottom of the OP in his OF1 keep root thread.
[Verizon Samsung Galaxy S 4] woody.tirol:
Thats sad... Its a problem when you never had root in OC version and a rollback to OC is not possible. I would like just to install Cyanogenmod but i could not figure out a way so far to install a recovery mod to flash it.
[Verizon Samsung Galaxy S 4] klabit87:
Not gonna happen.

Installing cm hasn't been possible since the mdk bootloader.
[Verizon Samsung Galaxy S 4] woody.tirol:
Good to know.. Thanks... Verizon sux
[Verizon Samsung Galaxy S 4] toonmaster74:
IM IN!!!!!
[Verizon Samsung Galaxy S 4] n2locarz:
I have a GS4 that I just purchased with OF1. I am willing to use it to test firmware. Thanks
[Verizon Samsung Galaxy S 4] n2locarz:
Wiped and Odin 3.07 installed this rom:

I545_Downgrade_to_OC1.tar.md5

Here is a screenshot of the error message

http://s10.postimg.org/ygx2v6xmx/20151020_095811_1.jpg

The recovery is to Odin the OF1 factory.
[Verizon Samsung Galaxy S 4] klabit87:
Downgrade can not be done.

There is too much protection.

The only hope we have now is to wait and see if kingroot gets updated to root the of1 firmware.
[Verizon Samsung Galaxy S 4] bkkzak:
So even if Knox was disabled, downgrade is not possible (disable using Package Disabler Pro no root)? What is it that restricts downgrade if not Knox?
[Verizon Samsung Galaxy S 4] klabit87:
The downgrade is protected via qfuse which is hardware based and any way to bypass these have already been attempted during the research to unlock the bootloader.

If you want to learn more just look into qfuses and how they work and visit the unlocking bootloader thread by surge.

Yes even is knox is disabled you cant do anything about it.
[Verizon Samsung Galaxy S 4] dj_blueshift:
Been on KitKat for a longtime and today decided I wanted to upgrade to Lollipop. Of course AFTER I install OF1, I see these issues. Now I got all my TitaniumBackup files with no way to restore them ugh
[Verizon Samsung Galaxy S 4] mosoman:
This guy...

I will test it if you are still offering.
[Verizon Samsung Galaxy S 4] PalmCentro:
We might be able to flash the OC1 kernel on a OF1 device and then root with kingroot.

I just need to find the kernel...
[Verizon Samsung Galaxy S 4] klabit87:
You're more than welcome to try again.

We've tried this.

Here is the oc1 kernel.

https://www.androidfilehost.com/?fid=24052804347820944

And the of1 kernel

https://www.androidfilehost.com/?fid=24052804347820945

Just gotta use Odin the flash them.
[Verizon Samsung Galaxy S 4] PalmCentro:
Thank you!!

Has anyone tried before to downgrade just the kernel?

I saw that people weren't able to downgrade with Muniz"s stock firmware. But this one is just a kernel...
[Verizon Samsung Galaxy S 4] klabit87:
Yes I believe we have. It's been a while though.

Maybe it will work this time since kingroot is always making advances.

Let us know how it goes :)

Thanks
[Verizon Samsung Galaxy S 4] PalmCentro:
I don't have it on me now, will test it later.

What you say that it is downgrade-able to OC1 kernel but kingroot still didn't work?
[Verizon Samsung Galaxy S 4] klabit87:
It didn't at the time but who knows it might now.