yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] fragtion:
Hi guys.

So firstly I'm not an advanced developer by any means, however I think I may have successfully "cracked the code" on how we can all have working root + lockscreen on our Galaxy J6+ (SM-J610F) which also doubles as a rooting method which doesn't require manually modifying or extracting any images yourself, or a need to flash back stock recovery in order to avoid bootloops... If you've also been there you'll know what I mean!

Simply flash a few zips with TWRP and it's good to go, pretty much. Here's how:

Disclaimer: you do this at your own risks and claim full liability on yourself for any loss or damage you face as a result of choosing to follow my instructions further. I am not responsible, I'm merely sharing what worked for me without any promises or guarantees attached.

Prerequisites:

- "OEM Unlocking" switch visible & ON/ENABLED in developer options.

- Android 10 Bootloader (U6/U7/..)

- Stock ROM (Android 10) corresponding to same BL version

- "SM-J610F-LockScreen-Fix.zip"

- "Disable_Dm-Verity_ForceEncrypt_11.02.2020.zip"

- "Magisk-v23.0.zip"

1. Go to Download mode (with usb plugged into PC, hold pwr button, vol+, vol-, for 7 seconds until you see green download mode screen appear)

2. Flash stock ROM (I used Odin v3.14, with auto-reboot disabled)

3. Go back to Download mode (same way)

4. Flash TWRP Recovery into AP slot (While holding vol+ and Odin auto-reboot enabled)

5. Phone reboots into TWRP (yellow msg: "Set warranty bit: recovery"). Swipe To Allow Modifications.

6. Wipe /data only (type yes, etc)

7. Copy the 3 zip files to SD card if you haven't already done so: "SM-J610F-LockScreen-Fix.zip", "Disable_Dm-Verity_ForceEncrypt_11.02.2020.zip", and "Magisk-v23.0.zip"

8. Flash "Disable_Dm-Verity_ForceEncrypt_11.02.2020.zip"

9. Flash "Magisk-v23.0.zip"

10. Flash "SM-J610F-LockScreen-Fix.zip"

11. Reboot to system. (yellow msg: "Set warranty bit kernel")

12. You should see two stages of samsung logos. The second one may appear to hang for some time, but be patient. It could take 10 minutes.

13. If all went as well for you as it did for me, then ENJOY your freshly rooted (Magisk v23.0) Galaxy J6+, WITH working TWRP recovery, Working Lockscreen INCLUDING fingerprint..

Notes (1) Without also applying the DM verity ZIP, you will get bootloop from flashing either (or both) the lockscreen patch or magisk. I'm guessing the verity zip successfully disables security checks, allowing the Oreo keymaster drivers to load, and allow a successful first boot even with custom recovery.

Notes (2) The only thing that still doesn't seem to work is ability to see or mount /data partition in TWRP. I guess the decryption still isn't working. Please share if you know how to fix this

I'll try keep this post updated in time especially if anything somehow goes wrong, and I encourage anyone who tries this method to please share your feedback & experiences also. I'm sure there are even better ways of doing some parts, but for now this is good enough for me

Good luck
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] crudebuster:
The problem I had when trying to use TWRP to format data partition is that it failed every time and caused freeze and bootloop. It simply never worked at all with android 10.
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] RadicalTeletubby:
everything works but when i install screenlock fix it says this device is not supported even though im on android 10 j610f also i had to install magisk 21.3 zip bc the 23 was failing
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] fragtion:
Oops, uploaded the wrong version of my lockscreen patch! Try this? https://drive.google.com/file/d/1djfAtWA9mmWp2K_Vqk-W4dOTRv2kGU5c/view?usp=sharing

Would love to know if this works for you! Just updated the link on the my original post as well. cheers

I'll also take up this opportunity to state that I faced one small issue since rooting & lock screen fix, where if I unlock with fingerprint/biometrics, sometimes the camera opens on its own... But this can easily be fixed by disabling Quick launch in the camera app settings.
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] RadicalTeletubby:
No worries but I think my TWRP is the problem bc it said unsupported device for this one too so the real reason must be it can't read /data partition or internal storage (shows 0mbs) so maybe it's that. Thanks nonetheless, I really hoped fingerprint would work cus I used to unlock with a single touch on my sensor due to the button press being stubborn sometimes bc of too many presses over its age
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] fragtion:
Maybe it is your TWRP.. Anyway here is a version of the patch with the device check removed, maybe it works for you but I can't guarantee anything at this point so you'll need to use it at own risk: https://drive.google.com/file/d/101JAPsWK6pqw4oeThjTF32kgmQBk9yWy/view?usp=sharing
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] RadicalTeletubby:
It flashed successfully! But I'm terrified to set a lockscreen now bc this is the fourth OS I install after 4 data wipes and bootloops. and bc I'm so smart I didn't back up my 50 apps with a PC program every time I tried lockscreen and got bootloop and my internet quota is limited sooo idk, do you think I should do it?
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] zobex:
Hello, I have the J6+ (SM-J610FN) Binary 7 and when installing the recovery the following appears Factory: recovery.img signature check fail!
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] RadicalTeletubby:
IT WORKED!!!!! I was hesitant to set a lockscreen for 11 days!! I love you bro
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] dope77:
1- Regarding the encrypted storage it's just bugged in twrp,

i suggest you flash twrp then flash orange fox recovery, storage works well with orangefox

2- Your lockscreenfix didn't work for me so i flashed a lockscreenfix i had from android 9, it works well also biometrics are working (Attached Below)
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] AboHasan20:
Where i can download orange fox recovery , on the official website my J610F not supported. Thank you
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] dope77:
Samsung Galaxy J6+ (j6primelte) build releases | OrangeFox Recovery Downloads

Orangefox recovery for Samsung Galaxy J6+ (j6primelte)

orangefox.download

download the beta version not the stable one

I will also post a guide on how to flash this recovery (because you can't flash it with twrp since twrp can't read internal storage)
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] AboHasan20:
Thank you. I'll be waiting
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] dope77:
So here it is, the guide to root android 10, decrypt storage and fix lockscreen/biometrics:

Please follow the steps precisely to avoid bricking your device and having to start over.

Disclaimer: Do it at your own risk :p

Prerequisites:

- "OEM Unlocking" switch visible & ON/ENABLED in developer options.

- Stock android 10

- Bunch of zips attached below

Note before starting: if you can't find OEM Unlocking in developer options, use the date/time trick to get this option

Steps: (Assuming you have already flashed android 10 and toggled 'OEM Unlock')

1- Open Odin, disable auto reboot then flash TWRP 3.3.1 (You can find it in the first post in this thread)

1.1- After it finishes flashing, hold power + volume down till the screen turns black then hold power + volume up immediately to boot recovery.

2- After twrp boots, go to wipe then format data, type yes.

3- After formatting data is finished, go to reboot then select reboot recovery.

4- After booting to recovery, connect your j610f to your pc/laptop and copy the zips attached below.

5. Flash "Disable_Dm-Verity_ForceEncrypt_11.02.2020.zip" => this will disable storage encryption but TWRP won't be able to read internal storage, this can be fixed in step 7 (you might get an error -failed to mount odm- , ignore it and continue

6. Flash "Magisk-v23.0.zip"

7. Flash orange_fox.zip and wait for it to finish (it will boot to recovery again by itself, so just wait)

8. Reboot (Don't flash the locksreen fix, this will cause the first boot to take up to 20 minutes to finish)

9. After the phone boots, reboot to recovery and flash the lockscreenfix.zip(this will fix the broken locksreen & biometrics)

now your phone is rooted, locksreen & biometrics fixed and internal storage decrypted!!

If you already have rooted device + TWRP but want to switch to orangefox, follow the guide below:

1. Download the orangefox recovery and extract the zip using 7zip.

2. You will see in extracted files "recovery.img"

3. Right click on the recovery image then select 7zip from context menu and click on "Add to Archive"

4. In the "Archive Fromat", change the format to "tar" then click ok.

5. Boot your j610f to Download mode.

6. Open Odin, diable auto reboot then flash the tar you created in "AP" slot.

7. After it finishes flashing, hold power + volume down till the screen turns black then hold power + volume up immediately to boot recovery.

8. Now you have orange fox recovery installed but most of the tools it offers aren't working, to fix this, check step 9.

9. While in recovery, connect your phone to your pc/laptop and copy orange_fox.zip then flash it.

Now internal storage is decrypted and can be mounted! :o
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] AboHasan20:
Thank you , you are best .

I have rooted J610f And screen lock and biometric ok
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] everywhereilook:
any progress on j610g? on android 10 btw, there are some solutions but for j610f
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] hexrevenge:
Thanks dope77, really helpful.

I added also a custom ROM and it works like a charm. Just install everything in this order:

* TWRP via Odin AP

* Custom ROM

* Gapps

* Magisk

Be careful to format data partition in order to be decrypted.
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] Lori99:
I am quite lost as to what to do in my situation.

I wanted to flash a custom rom on my phone due to terrible performance on stock, I needed custom recovery for that so I went here and followed all instructions and got stuck. What I did and where I am:

- Unlocked bootloader

- Downloaded everything necessary

- Shut down phone and plugged it in my PC

- Ran odin

- Booted in Download mode

- Tried to flash TWRP and failed

- Noticed I got output on my phone saying that only official binaries are allowed

- Exited Download mode and booted

- Went to dev options and noticed Bootloader unlock option is missing

From what I read on this tread I believe that this means my phone is locked for 7 days, what steps do I follow from here? This is my first experience working with android customization, sorry if this is a noobie issue. I don't mind if things like sim or biometrics work.

All information necessary as far as I know (If more is needed notify me):

Model: SM-J610FN/DS

One UI: 2.0

Android: 10

Latest update is installed

Firmware: J610FNXXU7CUF2 (I was unable to find this version on SAMMOBILE)
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] dope77:
What do you mean unlock bootloader? And regarding the OEM lock option, just go to Date/Time settings and disable automatic time settings then go to software update and check for update. Go back to date/time and now change the date (set the date like 10 days from now) then go check for updates again. Now you should see the OEM Unlock option in developer settings
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] Lori99:
By unlock bootloader i meant OEM unlock. This worked perfectly, thanks!
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] dope77:
Is it your build?
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] DarknessDrake:
Excuse me, RMM bypass is for exynos system, what should I do as my J6 plus has snapdragon, please help, twrp is installed perfectly but after following the steps I am getting a constant bootloop and if I powered off the device and then turn on, it straights go to recovery
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] dope77:
I bought an s20, no longer have j6+ but i think i still have all the fixes (rm bypass, twrp 3.5.0, biometrics fix) . Will check later after i wake up
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] DarknessDrake:
Thanks, it will be a great help
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] DarknessDrake:
Today I tried again and went with this pattern

Flashd with ODIN in the AP slot.

1. Putted my device in DOWNLOAD mode.

2. Loaded (twrp_3.2.3-1_J610_21230) below into the AP slot, uncheck Auto-reboot and hit start.

3. After flashing and ODIN reports PASS immediately force reboot to recovery. Didn't let the device boot to the OS.

(TWRP was successsfully installed)

4. Did a format data on wipe in twrp

5. Then I just installed Magisk 25.2 latest version throug twrp went for a reboot but got in a bootloop.

6. Then I just installed the custom rom and it worked, somehow.

(I just got a SEandroid in enforcing on boot)

PS: After Lineage OS was installed perfectly, I installed the RMM bypass and J6 Forced Encryption Disabler, was that even necessary?
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] rami52:
My j6+ is android 10 will it cause a problem?
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] dope77:
[RECOVERY][ROOT]TWRP 3.3.1-1 Galaxy J6+/J610F/FN/G/DS

Unofficial release -TWRP recovery for the Galaxy J6 plus 2018 - SM-J610 MSM8917 TWRP 3.3.1-0 Released May 22, 2019 TWRP 3.3.1-0 is out now for most currently supported devices. What's new in 3.3.1-0: * Fix selinux issues during formatting -...

xdaforums.com
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] BarcellosBR:
my samsung is stuck on twrp logo, how can i solve it?
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] SravanK98:
So, you meant to say the old files still worked for you?

Asking this I too want to try this as I the phone laying around.
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] SravanK98:
Installed successfully but when flashing rom or magisk there was an error cannot mount /odm. ignored it but not sure if this is a problem.
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] Sincypher:
Sorry for necroing this post. I've been trying the steps and nothing is working. I keep getting stuck on the samsung Galaxy j6, secured by nox, powered by android when I reboot and nothing happens. I have to put back on the stock rom and try again.

I have oem on and usb debugging but once I restarted the phone and hold power and volume up and nothing happens. Even tried it once with auto reboot on with odin so I wouldn't have to move my fingers off the volume up and power button but nada.

Anyone know why?
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] crudebuster:
probably because you got a unit with a new firmware that locked up itself by bootcode like most of us did, samsung is becoming their own worst enemy.
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] Sincypher:
And there's no way around this?
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] crudebuster:
not at the moment and i'm not planning to have anything samsung in the near future
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] dope77:
I don't own the device anymore, but i had posted a while ago a guide for latest A10, could you give it a try?

Also i suggest you try with latest magisk canary instead of the one attached in my post.

[RECOVERY][ROOT]TWRP 3.3.1-1 Galaxy J6+/J610F/FN/G/DS

Unofficial release -TWRP recovery for the Galaxy J6 plus 2018 - SM-J610 MSM8917 TWRP 3.3.1-0 Released May 22, 2019 TWRP 3.3.1-0 is out now for most currently supported devices. What's new in 3.3.1-0: * Fix selinux issues during formatting -...

xdaforums.com
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] tuanthichlong:
hey mate, i have problem with rom today

my steps can u check for me mate

Boot to DLMode and flash twrp_3.2.3-1_J610_21230

into TWRP i flash RMM_Bypass_v3_corsicanu

and install rom lineage-19.1-20221230-UNOFFICIAL-j6primelte

wipe and reboot

So i forgot install Gapps and when I go back to TWRP by step, turn off myphone and keep POWER + VOL + and VOL -, but it boot to logo of TWRP and dont have anything, i have try to boot to DLMode but cant do. can u help me mate
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] Amin2:
i have a samsung sm-j610f unlocked on android 10 oneui2.0 no twrp available on xda works for it .any help plz.
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] CapaE:
Which of the two corresponds to the j610G?
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] dope77:
Updated guide on how to root your j6+

[J610] J6+ Twrp, Root, Decrypt Internal Storage, Lockscreen and Biometrics Fix

Disclaimer: Do it at your own risk Prerequisites: - "OEM Unlocking" switch visible & ON/ENABLED in developer options. - Stock android 10 - Grab TWRP 3.3.1 from here...

xdaforums.com
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] mcomoro:
Actually I have the same problem. The only ROM that worked for me was Pixel Experience but Mobile Data was greyed meaning sim card was not functional. Tried to flash Modem.bin but did not work. I am also looking for some help.
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] brent Gordom:
How did u unlock the bootloader on the j6+
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] supermanjet3:
Hi i tried this but didn't work

I even flashed stock rom with odin and changed the date on setup but no luck

can someone help me please.
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] mcomoro:
I followed one of these steps below;

https://www.google.com/url?sa=t&rct...axy-j6-plus/&usg=AOvVaw225VjxsJRNjNU_RLkED5PT
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] aadsambora:
Please build custom rom

Pls build cusrom for J6+ thx
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] mcomoro:
Is TWRP official for J6+ available? Would like to have the one that supports Vendor partition.

Pls share the link if you have.

Gracias.

---------- Post added at 12:53 PM ---------- Previous post was at 12:27 PM ----------

Reflashed all the below ROMS on my J6+

1. Descendant-OneDotFive-arm-aonly(bootloop)

2. DU-arm-aonly(Got message not compatible with my system)

3. PixelExperienceP-arm-aonly(Mobile data-sim card not working)

4. RR-O-v6-kuntao(bootloop)

5. System-arm-aonly-vanilla(Mobile data-sim card not working)

6. XenonHD-Unofficial-arm-aonly(no option to scroll back to the previous page, forced to restart)

None worked, anyone managed to successfully install any of the ROMS that works flawlessly pls share the link/procedure.

Will appreciate.
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] ashyx:
WTF?

This nonsense really gets my goat. :mad:

What difference does it make if its official or not!

It fully supports treble including the vendor partition, so what's your issue?

I find it highly disrespectful to post in someone's thread asking for another TWRP. :rolleyes:
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] mcomoro:
Sorry didn't mean to disrespect you, was just asking politely. I am not a developer and still new to these things.

Again sorry for the inconvenience caused.
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] ashyx:
What is you need, maybe I can help?
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] mcomoro:
Just trying to install custom ROM on J6+, was trying to make sure TWRP installed is the right one.
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] Clydeeeee:
How about my case that I don't have OEM unlock button? Actually, I had one once when it was first bought. After I flashed an updated firmware with the same CSC, it went gone. Any idea about this? I even tried some methods such as fooling my phone's time and date suggested by XDA people from other threads but no luck.
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] Clydeeeee:
Here it is.

---------- Post added at 05:18 PM ---------- Previous post was at 05:10 PM ----------

Here it is.
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] Clydeeeee:
Oh I see. my XDA LABS cannot post photos. I though it was posted together with the text caption. Anyway, I'm not stupid. I know where the OEM button is located if it is in the developer option.
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] Clydeeeee:
Ok, bro. I got it solved by waiting for one more day. By the way, I was already using my original stock firmware. I just found out that Black Mesa's RMM Disabler is not enough for it to disable completely as it turns to prenormal stage every after reboot. I found an advice from other thread that we need to edit a build.prop code and delete rlc apk in the priv-app. Once the OEM unlock button reappears, I'll give it a shot. Sucks I need to wait for another 7 days for this.
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] ashyx:
That's what the RMM patch already does.
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] Lupus1952:
Hello,

I did all steps from the instructions. Last step was flashing Magisk v18.1 via TWRP-Install

My phone boots new, but there is no a Magisk-App or something with "Magisk". How get I this Magist working? I want to root my Phone ( SM-600FN / 2018 )
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] ashyx:
Not even sure how you've even got twrp working considering this is for the J610f
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] Rooks:
Missing "OEM Unlock" option in "Developer Options" in latest SM-J610F Vietnam Update ASA4.

Unable to install TWRP Recovery:

---------- Post added at 05:46 AM ---------- Previous post was at 05:00 AM ----------

Interesting.............................................

After downgrading to ARK3, getting the same problem, even after "OEM Unlock" is enabled in "Developer Options".

At Odin Download mode, top left corner has following data:

ODIN MODE (HIGH SPEED)

PRODUCT NAME: SM-J610F

CURRENT BINARY: Samsung Official

FRP LOCK: Off

OEM LOCK: Off

KG STATUS: Prenormal

WARRANTY VOID: 0x1 (0x307)

QUALCOMM SECUREBOOT: ENABLE (CSB)

RP SWREV: S1, T1, R1, A1, P1

RP SWREV: K 1, S 1

SECURE DOWNLOAD : ENABLE

DID : xxxxxxxxxxxx(I removed this number)

download mode !!

Only official release binaries are allowed to be flashed
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] dope77:
You'll have to wait for 7 days without rebooting/powering off your device because this will reset the timer. Be patient
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] Rooks:
no way, how it can be done immediately......................
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] dope77:
Wrong thread, unless you meant your device is SM-J610F, if you have SM-J610F, the only thing you need to do is download Magisk manager from Google after flashing magiak zip from twrp.

If you have sm-j600, i suggest flashing stock rom cz i have no idea how your phone booted twrp,and follow this thread

https://www.google.com/amp/s/xdafor...very-twrp-3-2-2-0-galaxy-j6-on6-t3819751/amp/

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

Nope, be patient cz it's the only way.
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] Rooks:
7 days is a longgggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg time
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] dope77:
Ye i know, but luckily i didn't have to wait. I unlocked oem right after unboxing my j6+ and before inserting my sim card. Try this it might help.

Method 1:

Remove your sim, flash stock rom with CSC not HOME_CSC, after booting don't connect to Internet, just head directly to dev options and check if oem is there, if not, well at least you tried.

Method 2:

Repeat method 1 BUT, after the phone boots from flashing, do this https://m.youtube.com/watch?v=o0T-CR-KpfM

Method 3: ( which is easier in your case)

Be patient for 7 days
[Samsung Galaxy J6+ ROMs, Kernels, Recoveries, & Ot] Rooks:
I did a clean flash (with CSC not HOME_CSC) with no sim, but connected to internet at setup