yashsingh1/xdaforums huggingface dataset:
[OnePlus 3 Guides, News, & Discussion] Sudhangshu:
Thanks man i also saw beta versions too, so which one should i flash stable or beta version
[OnePlus 3 Guides, News, & Discussion] Not-Aus:
Stable of course!

9.0.6 is the latest version.

Edit: I have to correct myself: Depending on what firmware version that is running on your op3(t) right now, of course you might lose data!

So let me ask first: Which version do you have installed right now?
[OnePlus 3 Guides, News, & Discussion] Sudhangshu:
Thanks once again.
[OnePlus 3 Guides, News, & Discussion] Not-Aus:
Please read my edit!
[OnePlus 3 Guides, News, & Discussion] Sudhangshu:
Oh sorry

Actually i don't which firmware im on.

If there's a way to know
[OnePlus 3 Guides, News, & Discussion] :
No problems at all with my encrypted OP3 and latest firmware (and latest TWRP)
[OnePlus 3 Guides, News, & Discussion] MarcoLK:
Should I provide Firmware+Modem ZIPs for the OnePlus 3T too? :confused:
[OnePlus 3 Guides, News, & Discussion] S4turno:
"kamilmirza" does that on the 3T forums, but it doesn't hurt to have alternatives :p
[OnePlus 3 Guides, News, & Discussion] Dirk:
We are now a one-stop shop. Great job OP. Thanks and appreciation for being a Firmware Maintainer. :good:
[OnePlus 3 Guides, News, & Discussion] hellcat50:
new oos 5.0.6 available
[OnePlus 3 Guides, News, & Discussion] MarcoLK:
Stable 5.0.6 Firmware+Modem ZIPs added for OnePlus 3 and 3T!
[OnePlus 3 Guides, News, & Discussion] rupak007:
i was on oxgen os 5.0.5 stable and recently flashed a custom pie rom (Havoc os 2.0 pie)

In future i am planning to either go back agian to stock os or lineage os 16....

will i need to flash these firmware/modem files ?

when shall we flash a firmware file ?? while upgrading android version or when we switch between roms ?
[OnePlus 3 Guides, News, & Discussion] dingsaller:
[MENTION=6211832]MarcoLK[/MENTION] thank you for keeping FW/Modem uptodate :good:
[OnePlus 3 Guides, News, & Discussion] jenaplisken:
Thanks for the update. But I have a question.

The firmware it's the same the older version? Or every new version the firmware is up-to-date?
[OnePlus 3 Guides, News, & Discussion] TNSMANI:
If you go back to stock, the ROM itself will have the required firmware and modem files, so no need for flashing anything separately. If going to custom ROMs, then most of them will require separate flash of firmware and modem files. Which firmware and modem files will depend on the instructions in the OP of the concerned ROM thread.

Normally when you upgrade the ROM and sometimes while switching ROMs (depending on the instructions in the OP of the ROM thread), you will require to flash the firmware and modem files.
[OnePlus 3 Guides, News, & Discussion] loudersoft:
I took a phone that was used, flashed the 5.0.4 firmware and installed 8.1 Oreo. However, since doing this, I have no LTE service whatsoever. I thought maybe it was because of lack of strong LTE signal where I was when I did the install. Has anyone else run into a problem with losing 4G LTE before and after installing firmware updates? Big thanks to Marco for keeping this repository updated. Any suggestions would be helpful, though I will tell you I went back to stock locked bootloader nougat and it still didn't fix the problem.
[OnePlus 3 Guides, News, & Discussion] MarcoLK:
You can Install the latest 5.0.6 Firmware for oreo roms.

Maybe try to use the hardbrick unbrick Guide.

Otherwise your Phone antenna is maybe faulty.
[OnePlus 3 Guides, News, & Discussion] loudersoft:
If the antenna was faulty, though, wouldn't it fail to pick up the other frequencies? I have no problems making or receiving calls nor using the internet. I'm just not getting 4G!
[OnePlus 3 Guides, News, & Discussion] MarcoLK:
I personally don't have any problems.

So because I cant replicate it I cant help you unfortunately.

I would use the hardbrick unbrick guide, then update everything manually.
[OnePlus 3 Guides, News, & Discussion] rafi_android:
So just flash it with TWRP?
[OnePlus 3 Guides, News, & Discussion] :
Yep
[OnePlus 3 Guides, News, & Discussion] rafi_android:
And after flash the zip, all will go back to stock right? No twrp after flash?
[OnePlus 3 Guides, News, & Discussion] :
Firmware/Modem update.zip has nothing to do with TWRP recovery. TWRP recovery is the tool to flash the FW/Modem zip., no impact to recovery.
[OnePlus 3 Guides, News, & Discussion] jj71787:
I get the updater process ended with error: 7 when flashing in twrp
[OnePlus 3 Guides, News, & Discussion] :
Are you using latest TWRP version twrp-3.2.3-0-oneplus3.img ?
[OnePlus 3 Guides, News, & Discussion] jj71787:
Updated the new version and it works now. Hoping this helps with my download issues
[OnePlus 3 Guides, News, & Discussion] TNSMANI:
If you want stock recovery, you have to flash the stock recovery or the stock ROM (it will have the stock recovery also). No need for any firmware or modem flash.
[OnePlus 3 Guides, News, & Discussion] Tank Weston:
Modem

Does anyone know how to just extract the modem from the firmware and just extract it?

Thanks

Tank
[OnePlus 3 Guides, News, & Discussion] MarcoLK:
You can do this by yourself by following these steps:

Delete the "firmware-update" Folder and leave "RADIO" there, because there is the modem File inside.

Now go to META-INF/com/google/android and extract the update-script file and delete the one inside the ZIP.

Then open the extracted update.script File with notepad++ and delete everything.

Now copy this and paste it in there:

package_extract_file("RADIO/static_nvbk.bin", "/dev/block/bootdevice/by-name/oem_stanvbk");
set_progress(1.000000);

Now save the file and put it right back into the ZIPs android Folder where you deleted the old one.

Then flash it.

If you just want to extract the MODEM File, extract the File in the RADIO Folder.
[OnePlus 3 Guides, News, & Discussion] rppgaty:
I'm wondering how I extract the firmware and modem from the Stock ROM and create a flashable zip file myself (to understand the process), but I can't seem to find anything explaining how I would do that.

I'd use something like superr's kitchen for something like this, right?
[OnePlus 3 Guides, News, & Discussion] MarcoLK:
I just delete the system files and edit the update-script.

I will update für 5.0.7 later btw.
[OnePlus 3 Guides, News, & Discussion] westenlive:
hi

I have lineage os 15.1 but I want to update the modem part with the latest version available.

how can I do?

thank you
[OnePlus 3 Guides, News, & Discussion] emuandco:
Flash op's most recent modem/bootloader zip file from twrp and you are set.
[OnePlus 3 Guides, News, & Discussion] westenlive:
which version?

please link me a build.

Thank you

---------- Post added at 07:08 PM ---------- Previous post was at 07:07 PM ----------

which version?

please link me a build.*

Thank you
[OnePlus 3 Guides, News, & Discussion] rppgaty:
Thanks. That was a lot easier than I expected. Worked perfectly.
[OnePlus 3 Guides, News, & Discussion] TNSMANI:
You said you wanted to flash the latest, then why are you asking? Anyway, for OP3 it is Stable 5.0.7
[OnePlus 3 Guides, News, & Discussion] dingsaller:
[MENTION=6211832]MarcoLK[/MENTION] as always thx for 5.0.7 :good:
[OnePlus 3 Guides, News, & Discussion] dom001:
Is there a 5.0.7 for 3T too?
[OnePlus 3 Guides, News, & Discussion] dingsaller:
renoved
[OnePlus 3 Guides, News, & Discussion] vivian&ondine:
https://xdaforums.com/oneplus-3t/how-to/firmware-beta-10-t3631166

Check the linked thread. And firmware packages are never unified as the guy above me suggests, so don't flash op3 firmware on 3t or you will hard brick your device.
[OnePlus 3 Guides, News, & Discussion] MarcoLK:
Stable 5.0.7 Firmware+Modem ZIP for OnePlus 3T available.
[OnePlus 3 Guides, News, & Discussion] :
[MENTION=6211832]MarcoLK[/MENTION]

Thx for your great and ongoing support for our OnePlus³!

Do you have the just released oos5.0.8 on your agenda for fw & modem update? ;)

Many thx again!
[OnePlus 3 Guides, News, & Discussion] rickyromero0005:
Good work man.

Please release version 5.0.8

I really appreciate it
[OnePlus 3 Guides, News, & Discussion] MarcoLK:
I will upload it tomorrow
[OnePlus 3 Guides, News, & Discussion] rickyromero0005:
Thanks man ?
[OnePlus 3 Guides, News, & Discussion] MarcoLK:
OP3 and 3T Firmware+Modem ZIPs are up!
[OnePlus 3 Guides, News, & Discussion] generalprobe:
I may sound a bit overcautious, but I would like to know how to update the firmware first.

I run 15.1 and TWRP 3.2.3-1 on my op3. Do I just download the 5.0.8 zip, put it on my device, boot twrp and flash it like I would flash a new rom or gapps?

Is there a way to determine what Firmware I am on? (I bought the device used and the guy who owned it before switched to Lineageos asap)
[OnePlus 3 Guides, News, & Discussion] S4turno:
Yes, you just have to flash the zip file on TWRP.
[OnePlus 3 Guides, News, & Discussion] An68:
Hi, I'm on Lineage 15.1 and I want to upgrade, but I've errore 7 when I flash your zip. I've already upgrade twrp.Thanks
[OnePlus 3 Guides, News, & Discussion] hellcat50:
try to download the zip again, it may be corrupted
[OnePlus 3 Guides, News, & Discussion] pitrus-:
Also, make sure you're on 5.0.8 firmware. That's a minimum requirement since yesterdays LOS build.

Skickat från min ONEPLUS A3003 via Tapatalk
[OnePlus 3 Guides, News, & Discussion] An68:
Thanks, and how can I check this, please?

I've try 5.05 and works, thanks
[OnePlus 3 Guides, News, & Discussion] Mohib:
Hey guys. I got a used op3 from a friend the issue is when I insert sim it detects the simcard but no signals...I have tried reset and the phone dialer code etc but no success. Will flashing the radio/modem help with it? I just updated it via OTA to the latest offering but same issue. Plz help...
[OnePlus 3 Guides, News, & Discussion] TNSMANI:
Try the modem + firmware (flash the correct one as per the ROM you use). If not successful, try method 2 of the Mega Unbrick Guide. If neither work, probably a hardware fault.
[OnePlus 3 Guides, News, & Discussion] phill_r:
Thanks for these. Out of interest how would I got about building my own? I got the files following this process. https://wiki.lineageos.org/extracting_blobs_from_zips.html
[OnePlus 3 Guides, News, & Discussion] pitrus-:
You don't really have to do that. Just use the muppets device blob git tree in your localmanifest.

Skickat från min ONEPLUS A3003 via Tapatalk
[OnePlus 3 Guides, News, & Discussion] An68:
Hi I'm on lineage 16 with last 5.0.8, I've an issue with call e message in, I can call andò message but can't receve, it's always off, please help me.me. It's works changing network from automatic(4G)to 3G, why?
[OnePlus 3 Guides, News, & Discussion] S4turno:
Ask in the LineageOS thread.
[OnePlus 3 Guides, News, & Discussion] MarcoLK:
Open Beta 40 for OP3 and 31 for OP3T are now available. (Android 9)

Note: The logo.bin isn't included anymore.
[OnePlus 3 Guides, News, & Discussion] :
Working great on op3 with LOS :good:

Thanks!
[OnePlus 3 Guides, News, & Discussion] :
Latest bèta (pie) ;)
[OnePlus 3 Guides, News, & Discussion] :
oneplus3 + Nitrogen OS 9.0

After flash OB40 Firmware, need password to start-up my phone...

Flash back old version firmware, like Stable 5.0.8 not need password.
[OnePlus 3 Guides, News, & Discussion] pjgowtham:
Remove your lock screen and flash the latest firmware, then setup the lockscreen password again. Make sure to use the latest TWRP.
[OnePlus 3 Guides, News, & Discussion] Mulayan:
The latest version fu**ed me. I removed the lockscreen, flashed firmware, Rom etc. Rebooted, setup my Lockscreen again. It did not apply properly, so I don't have any lockscreen but have to enter my lockscreen pin. If I do it says it failed. Reverted to the older version but it's still ****ed. Seems like I have to clean flash on Easter. Great!!??
[OnePlus 3 Guides, News, & Discussion] pjgowtham:
You need to delete lockscreen related files at /data/system to setup new password.

locksettings.db

locksettings.db-shm

locksettings.db-wal
[OnePlus 3 Guides, News, & Discussion] bitubo:
i have only locksetting.db

i delete it

but impossible to use my fingerprint with OB40

i back to 5.0.8

OnePlus 3 @ Tapatalk
[OnePlus 3 Guides, News, & Discussion] vitzlibutzli:
Same here. Beta Firmware crashes security settings on latest Skydragon.Reversing to 5.0.8 didn't help. Clean installed with latest stable firmware...
[OnePlus 3 Guides, News, & Discussion] soparky57:
Can this new flashed while on custom Rom?
[OnePlus 3 Guides, News, & Discussion] jokuni:
The OB40 firmware upgrade broke my decryption too, so I can't start my phone anymore.. Is there any chance to avoid a clean flash?
[OnePlus 3 Guides, News, & Discussion] :
Reflash 5.0.8 FW
[OnePlus 3 Guides, News, & Discussion] jokuni:
I did but it changed nothing :(
[OnePlus 3 Guides, News, & Discussion] nexus_vl:
You need to format data to delete encryption, but you will lose everything on internal memory.
[OnePlus 3 Guides, News, & Discussion] :
Similar to this post, I guess: https://xdaforums.com/showpost.php?p=79209161&postcount=1477
[OnePlus 3 Guides, News, & Discussion] jokuni:
Yep, that's exactly the same error.. Guess I have to wipe everything. Thank you anyways! :)
[OnePlus 3 Guides, News, & Discussion] pokexpert:
I don't have my data encrypted i think (no password on boot and recovery) but my bloader is unlocked. Am i risking loss of data ? (not that it matter a lot, but i don't want to reinstall apps right now)
[OnePlus 3 Guides, News, & Discussion] DanipunK1:
Even if you do not have a password at the boot, it does not mean you're not encrypted
[OnePlus 3 Guides, News, & Discussion] TNSMANI:
Check in Settings whether you are encrypted or not. If not encrypted, you have to format /data and all your personal files will be lost. So take a backup.
[OnePlus 3 Guides, News, & Discussion] vikd007:
Can someone plz provide the latest stable released pie firmware+modem for op3
[OnePlus 3 Guides, News, & Discussion] :
Use fw5.0.8, it's available via first post
[OnePlus 3 Guides, News, & Discussion] Luiscasanova78:
can some please provide the latest stable PIE firmware+modem for op3? it's 9.0.2
[OnePlus 3 Guides, News, & Discussion] MarcoLK:
Stable 9.0.3 Firmware+Modem ZIPs for OP3 and 3T are now available!
[OnePlus 3 Guides, News, & Discussion] sandeep_kumar:
Last time I was on 9.0.2 pie and I decided to go to sultan ROM. When I flashed the nougat firmware { after wiping everything except internal storage; obviously} then TWRP asked to decrypt my data with the password. But I did not set up any boot password or lockscreen password. Even then after many attempts It did not accept any password so I formatted my phone to proceed.

So I want to know:

Does pie firmware does not include built in encryption support if I go down from pie to oreo or Nouagt.
[OnePlus 3 Guides, News, & Discussion] tim_h:
[MENTION=9920356]jokuni[/MENTION] I ran into the same issue after updating to the 9.0.3 Pie release. But unlike with you, after I reflashed the 5.0.8 FW and Modem firmware from this thread, I could successfully decrypt in TWRP. So I could save all my data. Great!

Ok, what I just wrote - unfortunately - is not true. It did say "decryption successful" in TWRP, but when I want to access my internal storage it is listed as empty. Wtf?
[OnePlus 3 Guides, News, & Discussion] c1ph4:
At least you could reflash to 5.0.8 and decrypt via TWRP again.

I face similar problems like you, could you please explain to me how you went back successfully to 5.0.8? Thanks in advance!
[OnePlus 3 Guides, News, & Discussion] ChrisLane:
Can't decrypt

I also can't decrypt after flashing the 9.0.3 zip
[OnePlus 3 Guides, News, & Discussion] Sturmmoewe21:
Same problem with 9.0.3

After flashing the OPO3 modem firmware 9.0.3 I also could not decrypt the storage anymore and even after after full factory reset of LOS16 with modem9.0.3 in addition the fingerprint reader was not working anymore.

After I reflashed modem 5.0.8 the fingerprint reader worked again.
[OnePlus 3 Guides, News, & Discussion] tim_h:
Sorry, no, it did not work. Yes, I reflashed 5.0.8 successfully. But decryption was still unsuccessful. So I lost all my data. :eek:

I just flashed the 5.0.8 zip linked in the OP. But as I write above, it did not help.

In the end I went again to 9.0.3 and installed LinageOS 16. No problems with fingerprint reader or anything.
[OnePlus 3 Guides, News, & Discussion] c1ph4:
[MENTION=8783139]ChrisLane[/MENTION] & [MENTION=9992281]Sturmmoewe21[/MENTION]: welcome to the club. T_T I didn't know that you can encounter these problems with 9.0.3, in my case it was because of 9.0.2. Maybe you could explain further what you did and how you ran into this problem exactly.

[MENTION=3838420]tim_h[/MENTION]: oh, what a pity. Then I misunderstood. Yeah, you did what I did too, just flash ROMs and deal with losing my /data partition. I don't bother anymore if I'm on 9.0.3 or 5.0.8, my unsuccessful decryption didn't work with both flashed versions. :-/

Take care and good luck! Bleeding edge can be tough sometimes...
[OnePlus 3 Guides, News, & Discussion] tim_h:
Although in this case clearly OnePlus are to blame. They knew about this - severe - issue, and in fact everything works fine with locked bootloader. So they either did not care or they intentionally broke this for people with unlocked bootloader. Both explanations really are not flattering for OnePlus.
[OnePlus 3 Guides, News, & Discussion] c1ph4:
:good:

Yeah, that's what I felt a couple of weeks ago too when I encountered this problem and dived deeper and deeper into this topic over a couple of days.

But we should take care with such rumours. In the end it's a company and they want to sell us stuff. We're always free to choose another manufacturer. We trusted a Chinese company, it wasn't the other way round.

Although I think they still develop incredibly sophisticated hardware, this issue leaves bitter tastes anywhere, to be honest. :(
[OnePlus 3 Guides, News, & Discussion] DanipunK1:
Hey guys, do not play with yours phones if isn't decrypted the storage.
[OnePlus 3 Guides, News, & Discussion] ChrisLane:
I simply put the zip on the phone and then installed it using TWRP 3.3.1, I didn't clear any caches.

After being informed that the data was "corrupt", I clicked "Reset" and set my phone up again. Everything works fine now, but the update meant that I had to start from scratch.

Good job I had some backups and data online :)
[OnePlus 3 Guides, News, & Discussion] tim_h:
Well, I wasn't really "playing", just installing an official update (not even beta) from OnePlus, which has worked flawlessly 100 times before. Except this time it hasn't. :rolleyes:
[OnePlus 3 Guides, News, & Discussion] DanipunK1:
Ok, rare case of yours. I only warn those who like to play with unofficial software like me
[OnePlus 3 Guides, News, & Discussion] sesquipedalianman:
9.03 broke passwords?

I updated my firmware to 9.03 which seems to be needed for the latest LineageOS update, but after doing so it told me my password was wrong (many entries, it's not that complex, very sure I'm typing right). I reverted to 5.08 and was able to sign into my device again. To try to get the upgrade going, I removed passwords from my device, then flashed 9.03, then went in & set a password, and it is again telling me my password is wrong. Only now, reverting to 5 does not fix the problem. As a result, I'm effectively locked out of the security settings. Any suggestions?
[OnePlus 3 Guides, News, & Discussion] KaiserSnorezay:
Where are they available? The main post of this thread hasn't been updated since July 2018.
[OnePlus 3 Guides, News, & Discussion] sesquipedalianman:
Just drill into the Android File Host link at the top. https://androidfilehost.com/?w=files&flid=279014 Be careful w/ 9.x :p
[OnePlus 3 Guides, News, & Discussion] KaiserSnorezay:
I haven't encrypted my partition, so shouldn't face any problems right?
[OnePlus 3 Guides, News, & Discussion] sesquipedalianman:
Honestly, I'm not sure. Mine wasn't encrypted either, but I did have password problems which have led me to a Wipe & start over process :mad: I advise a backup at least, or I'll defer to other more experienced users.
[OnePlus 3 Guides, News, & Discussion] KaiserSnorezay:
How do you flash the firmware - do you specify modem when using fastboot? Been a while.
[OnePlus 3 Guides, News, & Discussion] sesquipedalianman:
Just installed the zip from TWRP and it did it. So simple I thought I was doing something wrong TBH. But it did it. :)
[OnePlus 3 Guides, News, & Discussion] rainer_xxl:
I have same Problem install Stable 9.0.3 Firmware+Modem ZIPs for OP3 not 3t and now my Phone is broken every it will the password and i can't do any.

TWRP newest Version but how i can install old Firmware?
[OnePlus 3 Guides, News, & Discussion] :
Please read: https://xdaforums.com/showpost.php?p=79777086&postcount=2570
[OnePlus 3 Guides, News, & Discussion] sesquipedalianman:
I was able to revert easily by flashing 5.08. Downgrading is supported. My thought would be download the 508 firmware on your PC, push it over with adb tools then flash. Good luck
[OnePlus 3 Guides, News, & Discussion] Herbert_Hamster:
GPS Performance on 9.0.3

I have always had poor GPS performance on my OnePlus 3 - took a minute or so to get first fix and would typically have an error of 15m or more and often lose GPS fix, which was frustrating as I use the phone for Strava, driving etc. I tried every fix I could find without success so put the poor GPS down to hardware. This is on both stock and lineage.

Last week I upgraded from 5.0.8 to 9.0.3 (already on lineage 16). What a difference. I now get a GPS fix from a cold start in 3 seconds. Outside the accuracy is 3 - 4 m. I even get a fix indoors, where previously I could not, and accuracy about 9 m.

It is like having a new phone.
[OnePlus 3 Guides, News, & Discussion] sesquipedalianman:
The 9 firmware also fixed where the Bluetooth in my car would always say "no signal" even though I had signal and Bluetooth audio worked fine.
[OnePlus 3 Guides, News, & Discussion] nexus112:
thanks for your efforts. small note, one my oneplus3 i lost fingerprint sensor with 9.0.3. rolled back.
[OnePlus 3 Guides, News, & Discussion] pitrus-:
Are you sure you deleted both the fingerprint settings file and the folder containing the incompatible fingerprint database while in TWRP file manager after flashing 9.0.3 bootloader/firmware?

Skickat från min ONEPLUS A3003 via Tapatalk
[OnePlus 3 Guides, News, & Discussion] nexus112:
thanks! i only threw the lock screen. after removing the fingerprint files it works like a charm. thank you!
[OnePlus 3 Guides, News, & Discussion] fresholli:
If you had the time, can you do the 9.0.4 firmware
[OnePlus 3 Guides, News, & Discussion] hellcat50:
-Deleted-
[OnePlus 3 Guides, News, & Discussion] Herbert_Hamster:
Thanks, it flashed OK on a OP3. GPS performance seems better on 9.0.3 so I have returned to that.
[OnePlus 3 Guides, News, & Discussion] hellcat50:
Yeah, that's true. I've had some gps issues as well. I think the ROM's need to be updated to support 9.0.4 firmware.
[OnePlus 3 Guides, News, & Discussion] MarcoLK:
[MENTION=5925270]hellcat50[/MENTION] owns the Thread now. He will continue supporting the Firmware+Modem ZIPs.

He has all my permissions to do so.
[OnePlus 3 Guides, News, & Discussion] hellcat50:
Stable 9.0.4 Firmware+Modem ZIPs for OP3 and 3T are now available!
[OnePlus 3 Guides, News, & Discussion] westenlive:
hi

sorry for my questions.

which version can I flash?

bye
[OnePlus 3 Guides, News, & Discussion] hellcat50:
You can flash stable 5.0.8 firmware
[OnePlus 3 Guides, News, & Discussion] westenlive:
there is a guide for flash?
[OnePlus 3 Guides, News, & Discussion] hellcat50:
Download the zip file, boot into recovery (twrp) and flash the zip
[OnePlus 3 Guides, News, & Discussion] Herbert_Hamster:
I have been losing GPS sometimes - maybe once or twice a day. Had to reboot the phone to get it back. After I turned off Google Location Services, this problem has not recurred. This is with firmware 9.0.3 and recent Lineage 16.0 nightly.
[OnePlus 3 Guides, News, & Discussion] hellcat50:
Try different firmware (9.0.2 or 9.0.4) or if this didn't help, ask in the Lineage OS thread.
[OnePlus 3 Guides, News, & Discussion] :
No problems at all with GPS at least for me. Using fw 9.0.3 with latest LineageOS 16.