yashsingh1/xdaforums huggingface dataset:
[OnePlus 2 Android Development] jhonnyclyde:
Guys a noob needs help . Attached is a screenshot of the baseband version in my OnePlus 2. But i still don't have volte . Can someone please guide me ?
[OnePlus 2 Android Development] Kallepalli:
Rr rom

Does it work for rr rom i ve tried but isn't working pls help me bro hw to work it on rr rom

---------- Post added at 04:53 PM ---------- Previous post was at 04:08 PM ----------

Not working bro did the same process as mentioned pls help me bro mine is rr rom 5.8.0
[OnePlus 2 Android Development] machan2k6:
Updated the zip + changed the build.prop.

oos2.2.1

modem version changed after zip install.

After the changes, GOD bless I am able to use the phone. But as someone else mentioned, unable to open "security" settings. settings app just crashes when i select security.

Nothing good happened as well. no VOLTE, no icon, calls not working as well.

My OS was restored from a twrp nandroid backup and i still have it on my phone.

Can someone help me to go back safe to my original setup. Another nandroid restore would help ? Or would that mess the phone ?

can i take the modem from the original Firmware for 2.2.1 and install as zip and get out of the mess ?

Please help.
[OnePlus 2 Android Development] machan2k6:
back to good afte mess

I was good as long as i was in the same locality,. I travelled to bangalore from kerala and all hell broke.

network drop every 2-3 minutes, took a minute for th enetwork to come back.

Unable to send/receive shareit movies.

no calls received.

made call disconnected.

So , as mentioned, downloaded the network signal guru.

it could not read configuration , crashed.

battery drained in 4 hours. mobile got heated as if its going to burst. So kept off while in pocket.

reinstalled the 1.1b zip. no use. dint work

restored nandroid backup - dint work.

installed latest ROM - the one whioch came with volte support- VIOLa- network came back,. But i wanted to go back to lollypop for audio + battery life.

Restored nandroid backup again. Dint boot.

Flashed twrp 2.8.7 - dint boot.

3.2.1 - dint work

3.2.2 dint work.

So used 'reverttolollypop" zip provided in our forum sometime back- which used before to get back after cwm flash.

VIOLA - worked. I am back to where I am with the modem version as before.
[OnePlus 2 Android Development] utkarsh102:
Has anyone tried this on cm13?
[OnePlus 2 Android Development] Controlstar:
Perfect!

This solve my problem. Thanks man!
[OnePlus 2 Android Development] shahfaishal:
i have taken the backup of imei (2 files modemst1 and modemst2), twro works, but problem is when i enter into fastboot mode, the device is not recognized in adb_cmd (thought the connecting sound plays in pc when device is connected). so how im suppose to restore that 2 files??? plz help

---------- Post added at 06:32 PM ---------- Previous post was at 06:29 PM ----------

bro can u telegram me?? i need to ask few questions if u dnt mind.
[OnePlus 2 Android Development] Rohandd:
I don't have telegram.. and I don't use it.. maybe Hangouts?
[OnePlus 2 Android Development] shahfaishal:
yes. but im not able to boot into twrp. it always boots to home after selecting twrp and keep booting into home.. how to solve this?
[OnePlus 2 Android Development] :
Guys I have tried this and can confirm it does not work I don't recommend flashing this but if you want volte best thing to do is download the full ROM and flash it let it boot and then wipe it and restore.

BTW no disrespect to the developer
[OnePlus 2 Android Development] ashokmor007:
How did you make it work brother.. m stuck on setup wizard... Tried latest unblock method but no success now phone doesn't boot up I have OnePlus recovery installed but unable to install twrp it says phone is locked...... N nothing inside internal memory complete reset done .... How do I make it work on you explain the process
[OnePlus 2 Android Development] Rohandd:
Is your bootloader unlocked? That seems to be the problem.. also I'm not really sure how to do it with stock recovery.. I was using twrp..

---------- Post added at 02:02 AM ---------- Previous post was at 01:55 AM ----------

What was the version of twrp? This hydrogen version 2.5 also works with official twrp.. mine is 302.2 right now..

If it isn't booting in twrp that means the recovery version is not compatible with h2os.. first tell me which version of twrp were you using?
[OnePlus 2 Android Development] ashokmor007:
Yes i tried hard reset which locked the bootloader
[OnePlus 2 Android Development] Rohandd:
Ok.. so if you go in fastboot mode it says your bootloader locked?

---------- Post added at 03:36 AM ---------- Previous post was at 03:16 AM ----------

Has it any implications ( good or bad) on battery life?
[OnePlus 2 Android Development] Aniket_IITM:
i had the same problem.

in this case you have to hard reset your op2 to hydrogen os 5.1.1

then copy your h2os latest beta to your phone and flash it using stock h2os recovery

then flash twrp.

this worked for me.

although u should not try to go back to OOS since their are network and wifi issues , i had random reboots on cm 13 as well as 14. so for now u should stay on h2os beta.
[OnePlus 2 Android Development] ashokmor007:
Yes it say bootloader locked
[OnePlus 2 Android Development] Rohandd:
CM14.1 works just fine.. I think all the other roms are rebooting because of Volte implementation.. CM14.1 has the Volte patches, that could be the reason it works fine..

---------- Post added at 03:55 AM ---------- Previous post was at 03:54 AM ----------

But what you suggest might just work.. and then reverting back to TWRP will be doable..?
[OnePlus 2 Android Development] Aniket_IITM:
yaa... h2os lollypop boots properly. so that u can copy that h2os beta file on your op2. (stock recoveries won't allow u to access files on your op2 like twrp).

and I tried cm 14.1 by seraph yesterday, his 25/11 build. VoLTE is working but i had random reboots.
[OnePlus 2 Android Development] phorcus:
how do i hard reset to h2os 5.1.1, i am unable to flash h2os v2.5 as it is taking forever to flash and when i reverted back to os 3.1.0 there is no wifi, no imei
[OnePlus 2 Android Development] Rohandd:
I think hard reset is a bad idea.. as one of the conversations i had with someone it resets the recovery and you go on to stock one.. I'm not sure..
[OnePlus 2 Android Development] ashokmor007:
Can you give the link to hard reset to hydrogen..
[OnePlus 2 Android Development] raj007avi:
But in h2os network randomly switched to aeroplane mode on off. It work fine if second sim will disabled.
[OnePlus 2 Android Development] Razeed:
i am using resurrection remix 5.7.4 ,i am waiting to try this modem file.but i don`t want to stuck in boot loop,last time i tried to flash modem file and this ended with bootloop.pls anybody suggest me can i try the modem file.
[OnePlus 2 Android Development] raj007avi:
It's not works for me. Reboot after every boot, without loading fully. How do the cm 14.1 work for you, any suggestion.
[OnePlus 2 Android Development] Aniket_IITM:
https://docs.google.com/uc?id=0B14IjYN3PtxcSlJ5aGQxX3JERHM&export=download

link for H2OS lollypop 5.1.1 . after doing hard reset with this method yo can get into hydrogen os,then copy your h2os beta file on your OP2. then flash it using stock recovery of h2os 5.1.1.

This method works if your bootloader is locked, have stock recovery( means can't access files of your op2 from pc), and u can't boot into OOS.

If you have flashed h2os beta then as of now you can't go to any other rom ( unless you have your efs partition backed up) , so just wait for some developer to fix this problem.
[OnePlus 2 Android Development] ashokmor007:
Wil give it a try i have efs backup everything.. but need to install twrp recovery

---------- Post added at 02:55 PM ---------- Previous post was at 02:54 PM ----------

By the way download link is not working
[OnePlus 2 Android Development] dark.knight.0000:
Flashed version 1.1. Volte doesn't work and second sim is not working. Any solution?
[OnePlus 2 Android Development] Harish Diesel:
+1
[OnePlus 2 Android Development] mackhenri:
ME too... Now on every ROM it's screwed
[OnePlus 2 Android Development] nicesoni_ash:
Make sure both files extension is changed to bin.

Boot ur phone in fastboot mode, start cmd in the same directory where ur efs backed up files are and run these commands.

fastboot flash modemst1 "first modem file name".bin

fastboot flash modemst2 "second modem file name".bin

Good luck.

This thread is an example of how carelessly people put stuff without proper disclaimer. :(

And kudos for linking to a guide that's in Chinese. [emoji106]
[OnePlus 2 Android Development] Qbuiwonder:
Not working for me on AICP ROM, T-Mobile USA. My battery actually seems worse than before, though that could be a coincidence. Anyways, seems a lot of people are having trouble with this modem. I made an EFS backup via TWRP but I'm afraid to recovery. I don't want to have IMEI problems ? what should I do?
[OnePlus 2 Android Development] nicesoni_ash:
Better to backup using an app or adb like partition backup and restore. There are reports that twrp has issues backing up efs.

Sent from my "1+2" powered by Unofficial RR

Compiled by myself
[OnePlus 2 Android Development] lockmunk:
you can backup EFS successfully if you are using Hybrid TWRP Recovery.

If you backup EFS from normal recovery, it will wrongly backup your modem partition instead of you EFS.

So please be careful to double check your EFS backup file before flash this mod.
[OnePlus 2 Android Development] Harish Diesel:
:confused:...Did you get it resolved?
[OnePlus 2 Android Development] mackhenri:
Flash hydrogen rom first and then clean flash cm14. 1 and use jio in slot one.... VoLTE works

Use network guru app and set band 3 and 5 solves the reboots.
[OnePlus 2 Android Development] Harish Diesel:
Great to know it's solved!!! could you be more specific pls? i've installed the app and what i've to do exactly?
[OnePlus 2 Android Development] mackhenri:
Cheers bro
[OnePlus 2 Android Development] Harish Diesel:
You the Mann bud!! Thanks a ton:cowboy:
[OnePlus 2 Android Development] hounter17:
i lost my backup for the EFS or modem, can some one bring me the correct modem for cm14/14.1. the phone is rebooting it self since i flash the 2.5 firmware.

pleas can some one help me, what can i do to solve the reboots?¿
[OnePlus 2 Android Development] nicesoni_ash:
You should be more worried about that missing efs backup. If you can't find that, u r fkd. That's why it's specially noted to have your efs partition with you securely.

Edit

Still give it a go. Download complete rom package of hydrogen 2.5, flash it and then clean flash stock cm14. 1, hopefully it should work.

Sent from my "1+2" powered by Unofficial RR

Compiled by myself
[OnePlus 2 Android Development] hounter17:
mi imei, data ... all is good so doesnt mather. But i want to restore the radio, its there some flashable zip?¿
[OnePlus 2 Android Development] nicesoni_ash:
There is no official rom from oneplus for op2, the only modem available is the one you flashed. Try other tricks like blocking ur bands to 3 and 5 to stop reboots.
[OnePlus 2 Android Development] aaronblaze:
Will this be safe?..

1.I have taken EFS backups using backup zips provided by Spanaa..

2.Can I now Flash H2 0S and then return to 02 0S by clean flashing O2 0S and then restoring EFS using the backup that I have made...

If anyone has tested this can u please comment about how successful this method is?..

Suggestions are appreciated
[OnePlus 2 Android Development] hareram:
Thank you very much.. you are the saviour.. we have to flash this each and every time when we flash new custom ROM.
[OnePlus 2 Android Development] hounter17:
Really there is not any flasahble zip with the original oxygen baseband?? I gonna 3-5 thanks!
[OnePlus 2 Android Development] nicesoni_ash:
There is but that's not gonna work on your setup.

Sent from my "1+2" powered by Unofficial RR

Compiled by myself
[OnePlus 2 Android Development] Prinjal Dave:
Select magic wand -->lte-->band 3 and 5 (uncheck other)-->stop testing
[OnePlus 2 Android Development] aalaap:
No bootloop or random reboots, but VoLTE simply doesn't work for me on CM14.1 (the first nightly from 19th November). Even SIM2 doesn't work anymore.

Restoring EFS (backed up via TWRP) didn't work. Restoring System and Boot didn't work either.

Update: I had to wipe and flash the full HydrogenOS ROM. This got VoLTE and even the second SIM working. I then reflashed CM14.1+Gapps and voila! Jio VoLTE works, Airtel works!
[OnePlus 2 Android Development] burza_:
Guys, what about this modem from Benschhold's?

https://www.androidfilehost.com/?fid=24407100847293158

Shouldn't this one overwrite the H20's one?
[OnePlus 2 Android Development] nicesoni_ash:
This is old one, most probably **** up ur modem or efs partitions.

Sent from my "1+2" powered by Unofficial RR

Compiled by myself
[OnePlus 2 Android Development] hounter17:
I tried it and the result was a boot loop so dont flash it :good:
[OnePlus 2 Android Development] Rohandd:
This will cause bootloop if you install latest roms on it.. I think this should be flashed if anyone wants to return to oos 302 or oor 3.1
[OnePlus 2 Android Development] ashokmor007:
m trying to go back to oos 3.1 but no network... random reboot should i give a try to this modem or not
[OnePlus 2 Android Development] Rohandd:
I havent tried this process so be careful and I can't confirm anything , but for oos 3.1 to work this modem should be necessary.. so you can try one thing.. go to twrp, do factory reset, then wipe everything.. then flash the modem.. then try flashing oos 3.1 and see if it works.. but again.. i'm not a developer myself, so all these steps i would try if i wanted to go back to oos.. if it breaks something i might not be able to help you.. :confused:

check this link...

https://forums.oneplus.net/threads/dont-flash-hydrogenos-v2-5.475700/

---------- Post added at 07:22 AM ---------- Previous post was at 06:55 AM ----------

Just read the whole thing.. not just initial comments..
[OnePlus 2 Android Development] ashokmor007:
I also tried everything but could not get back to oos... So form now I'll stay on hydrogen os ... Now everything is amazing with rooted device n removed Chinese app.. Its clean like my oneplus3 OOS beta...
[OnePlus 2 Android Development] drpratik97:
Working for anyone ?.? From CM 14.1

Please post if working for anyone??? :fingers-crossed:
[OnePlus 2 Android Development] sky104hk:
Hey guys, I try to flash it directly (which I currently using Cm14.1 RR), signal is improve and run prefectly, anyone having trouble can first full wipe and then flash CM14.1/gapps, and this modem patch afterward, it should be OK!
[OnePlus 2 Android Development] sky104hk:
Canadian version is OK, I own A2005 also, running with RR 7.1 rom^^ BTW how can I test the Volte function?
[OnePlus 2 Android Development] sebinss:
For all those who did this method....

For what its worth, I enabled all bands except the last three (which you must keep unchecked), and it works fine for me without any random reboots on CM14.1
[OnePlus 2 Android Development] remix abhishek:
Do not flash

You will loose sim 2 network also
[OnePlus 2 Android Development] sky104hk:
Yup, I confirm the Resurrection Remix N and the new Crdroid N Rom work perfectly, just a minor problem, seems the VoLTE not function/support? Although I'm sure the baseband/modem is already update to the newest 3.1.0...anyone confirm the VoLTE working at all?

BTW u guy if want to prevent bootloop and unexpected force close, a "clean install" is always prefer! This modem/baseband layer is not only modem at all... Also related to EFS, NV, etc...gd luck for all
[OnePlus 2 Android Development] Avi.mathew:
Will this work on Resurrection Remix (Android 7.1) also?
[OnePlus 2 Android Development] desertmann:
it work i use rr 5.8 the last days
[OnePlus 2 Android Development] Avi.mathew:
How did you flash it? I already have Resurrection Remix on my phone, so can I flash it now using TWRP or do I have to clean flash it? And which sequence should I use?
[OnePlus 2 Android Development] benschhold:
https://www.androidfilehost.com/?w=files&flid=130125

for the ones who are having issues with reboots with cm try this

latest with hydrogen blobs, there should be no reboots
[OnePlus 2 Android Development] SynisterWolf:
Thread cleaned.

Flaming and disrespectful comments post on XDA will not be tolerated. If you have the need to flame someone, take it off the site. This is a place for learning for all skill levels. Also, do not disrespect someone for trying to post in English when English is not they're first language. At least they are trying.

Thanks

Wolf
[OnePlus 2 Android Development] leonalewis:
anyworking ROM which can be flashed after H2OS 2.5.1 ? Which has VOLTE working as well. Please confirm
[OnePlus 2 Android Development] jayeshthakor:
Use latest RR rom,gapp,supersu install twrp recovery, after install complete wipe cache and install hydrogen 2.5 firmware and reboot..........only one-two time rendom reboot and work fine..sorry for my bad English......
[OnePlus 2 Android Development] sky104hk:
Yes for sure!

---------- Post added at 10:56 AM ---------- Previous post was at 10:51 AM ----------

Hey wolf, tks for supporting! I'm a Chinese and live in HK, ofcos English is not as good as u guys, but I live in Canada for about nine yrs before... I like to share technical skills for all of u... Especially for this OP2, anyways respect is the main point, BTW I can confirm RR 7.1 N and Crdroid 7.1 is working for sure
[OnePlus 2 Android Development] sanchitd5:
UPDATE : :

Fix for Missing IMEI in older ROMS:

The new modem changes the way IMEI is stored, so in older ROM's like OOS3.1.0 you can enable the IMEI by simply flashing the new H2OS modem on the ROM and it will enable the ROM to read the IMEI for slot2

Even you can get VoLTE working in OOS 2.0(Lollipop):

Oneplus tried to implement VoLTE for Oneplus2 back in the development days of OxygenOS 2 and the have VoLTE patches in it too. So If you flash the modded zip(v1.1b) of the VoLTE modem you can even get VoLTE calling working on OOS 2(Tested on 2.0.1).
[OnePlus 2 Android Development] rajatdixit:
Hi I am a little confused.

If I am running Android 7.1.1 RR with IMEI2 showing 0 then flashing ver1.1b will fix the issues? Or would it be ver1.1

Thank you
[OnePlus 2 Android Development] db9007:
Hey I have given my phone to local shop to write second IMEI, will try to flash the modem when I have my phone back and if local shop cannot write the IMEI.

can I use the modem V1.1b when I have used Fast boot Erased command?
[OnePlus 2 Android Development] sebinss:
Hey. I've been on hydrogen for a while and its been giving me issues as well and I miss my CM a lot, so I just wanted to ask you if crdroid is stable enough to be used as my daily driver?
[OnePlus 2 Android Development] osrox:
Hi,

My OP2's IMEI#2 became 0, after i erased modem via fastboot (NO EFS backup)

Now i used Qualcomm restore method (factory state restore method), to flash OOS 2.1.1 (Android 5.1.1) with stock recovery on my OnePlus 2.

but as expected its IMEI#2 is still 0.

I think i will have to unlock bootloader again, to flash any ROM/twrp.

Would really appreciate,

If you could write the exact steps, through which i can flash H2O OS ROM on my current OOS 2.1.1 running phone.

Kindly mention which TWRP version needs to be flashed (Hybrid or Official {version ? } ) as it gets confusing.

So that 2nd IMEI starts working.

(If VoLTE works, then its double thanks to you)
[OnePlus 2 Android Development] db9007:
Others can correct me if I am wrong but I don't think Flasing H2OS ROM will solve the issue of 2nd IMEI

As far as I know all the problems with H20S is that it's meant for Chinese Oneplus which only has one sim while ours are dual sim.

VoLTE works on H20S for sure.

I would suggest that you flash latest OOS through stock recovery and wait for an official update from OnePlus or search xda there are lots of threads regarding IMEI 2 but no concrete fix yet.
[OnePlus 2 Android Development] osrox:
Did you meant missing IMEI#2 (due to fastboot erase command) ?
[OnePlus 2 Android Development] benschhold:
if you want a stable rom you have to downgrade the modem/radio but loose IMEI2 until you upgrade the modem again.

apart from that its super stable
[OnePlus 2 Android Development] Ravi Venugopal:
IMS activation

Hey guys,

i flashed the modem and still have both sims ... however network selection has issues ....error comes while searching and if i disable one sim the other one works like a charm.... still not getting VoLTE ...4g data used to work before also as it does now . did a little searching as to what can be the reason and found IMS to be related to VoLTE .... CM 14.1 build 13 Dec went live and saw IMS activation for Jio included in change log ....

maybe that would make it work ....any idea ?

Updating to it anyway ...

Thanks

Ravi
[OnePlus 2 Android Development] osrox:
Right now my OP2 is running OOS 2.1.1 with root.

IMEI #2 still "0", due to fastboot erase commands.

Which scenario do you recommend from A, B, C: ?

A.

1. Flash TWRP Recovery v2.8.7 using Flashify.

2. Flash HOS 2.5 v1.1b Modem.zip

B.

1. Flash Hybrid Recovery v3.4 using Flashify.

2. Flash HOS 2.5 modem v1.1.zip

3. Flash Official CM 14.1 with nano gapps.

C.

1. Flash Hybrid Recovery v3.4 using Flashify.

2. Flash OnePlus2Hydrogen_14_OTA_026_all_1611180054_88633decb44c4c57.zip

3. Flash H2OS_DBLOATR_SuperSU.zip

3. Flash open_gapps-arm64-6.0-nano-20161125.zip
[OnePlus 2 Android Development] sky104hk:
Do u try to clean flash an official OOS 2.1.1/3.1 stock rom? this method should probably get black the missing imei, probably this EFS partition is corrupted...

My recommend method is wipe the entire system, clean flash official firmware and see if the I'm is bk or not, unlock the bootloader again and flash newest twrp, upgrade the new firmware(baseband/modem), then flash CM14/gapps.
[OnePlus 2 Android Development] osrox:
Flashing official OOS 2.1.1/3.1 stock rom, did NOT fix the missing IMEI#2 issue !!!

So, that's why trying these H2O ROM / Modem files !

Option A, did not work, so now trying Option C.
[OnePlus 2 Android Development] sky104hk:
Then I think u need to get QPST method to fix... Not confirm it working or not... It's for xiaomi.

http://www.androidbrick.com/ultimat...agon-xiaomi-mi5-imei-and-baseband-repair-fix/

Check this out bro!
[OnePlus 2 Android Development] rajatdixit:
Hi, the modem files are used for imei2 recovery. This means that imei is stored somewhere and these files link it properly to the ROM. If you used fastboot erase then there is nothing to link as the partition now is empty.

I am afraid at this point we need to wait for an imei repair fix. I am in the same boat as you.
[OnePlus 2 Android Development] osrox:
After trying Option A using TWRP 2.8.7,

I deleted system/data/cache

then flashed H2O ROM>debloater-SU>gapps>TWRP-hybrid v3.4

Still IMEI#2 is 0
[OnePlus 2 Android Development] nicesoni_ash:
Did you try to flash h2os v2.5.1 full rom zip?

Sent from my "1+2" powered by Unofficial RR

Compiled by myself
[OnePlus 2 Android Development] osrox:
I flashed OnePlus2Hydrogen_14_OTA_026_all_1611180054_88633decb44c4c57.zip
[OnePlus 2 Android Development] nicesoni_ash:
Then unfortunately these methods won't work for you. I had my efs backup which I restored through flashboot.
[OnePlus 2 Android Development] osrox:
I tried v2.5.1 only.

& It didn't make IMEI#2 work !

I dont know, how others were able to get missing IMEI#2 working ?
[OnePlus 2 Android Development] db9007:
QPST Method will not work for OnePlus 2, at the end of the second part of the guide it says

You can use this method for almost every Chinese Qualcomm ( OnePlus owners sorry you canâ€™t edit imei number, itâ€™s encrypted ) + LG phones.
[OnePlus 2 Android Development] Ravi Venugopal:
Stuck with H2Os

So the new ROM din make any difference....tried to go back to OOS 3.1 have both sims and imei ...however SIM2 works like a dead fish....only data and no voice callling through it ....if i change sim to slot 1 ..everything works ....any idea???
[OnePlus 2 Android Development] tashimotor:
I've got imei2 null, but both simcards works well there In Moscow. Different carriers.