yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] Sands207:
Excellent please read over the OP here where i update frequently and feel free to make requests https://xdaforums.com/galaxy-j3-2016/development/wip-custom-rom-j3-emerge-sm-j327p-t3634206 please make sure your current build is the same as the new one before flashing it will break wifi and possibly data if you try to flash a different build but ill keep updating these ROMS as i can. Enjoy!! ???
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] Coeur Brisé:
is there anyway i can downgrade from build number aq1 to ap1 so i can root an flash the rom? im stuck on latest firmware and cannot root, which sucks.
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] Sands207:
Yes. Just use the odin files in that thread and that will downgrade you to ap1. Follow the directions exactly, allow it to boot and then go to developer options in settings and enable USB debugging. Then flash our twrp build using odin to boot into recovery and flash supersu or magisk, what you do then is up to you. Hope this helps a bit ☺️
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] Coeur Brisé:
thanks for the help. So i can use the stock sprint odin files with my boost mobile to downgrade, then proceed with the rooting process?

Edit- I just tried flashing in odin and i placed the files in their corresponding slots in odin but it says fail and on my phone screen under download mode it says "SW REV CHECK FAIL : [aboot] fused 2 > Binary 1"

heres the log from odin:

<ID:0/005> Added!!

<OSM> Enter CS for MD5..

<OSM> Check MD5.. Do not unplug the cable..

<OSM> Please wait..

<OSM> Checking MD5 finished Sucessfully..

<OSM> Leave CS..

<OSM> Enter CS for MD5..

<OSM> Check MD5.. Do not unplug the cable..

<OSM> Please wait..

<OSM> Checking MD5 finished Sucessfully..

<OSM> Leave CS..

<OSM> Enter CS for MD5..

<OSM> Check MD5.. Do not unplug the cable..

<OSM> Please wait..

<OSM> Checking MD5 finished Sucessfully..

<OSM> Leave CS..

<OSM> Enter CS for MD5..

<OSM> Check MD5.. Do not unplug the cable..

<OSM> Please wait..

<OSM> Checking MD5 finished Sucessfully..

<OSM> Leave CS..

<ID:0/005> Odin engine v(ID:3.1101)..

<ID:0/005> File analysis..

<ID:0/005> SetupConnection..

<ID:0/005> Initialzation..

<ID:0/005> Set PIT file..

<ID:0/005> DO NOT TURN OFF TARGET!!

<ID:0/005> Get PIT for mapping..

<ID:0/005> Firmware update start..

<ID:0/005> SingleDownload.

<ID:0/005> aboot.mbn

<ID:0/005> NAND Write Start!!

<ID:0/005> FAIL! (Auth)

<ID:0/005>

<ID:0/005> Complete(Write) operation failed.

<OSM> All threads completed. (succeed 0 / failed 1)
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] Sands207:
That is really strange. Did you enable usb debugging before you tried? Also make sure you untick auto reboot and you have to wait a full minute or longer on one of the steps. I'm going to look deeper into this today if i can so you can get squared away you could also try writing to the OP of the odin thread to see if they can assist you as well ok?
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] Coeur Brisé:
Okay ill check with the op of the odin thread and yea its like second nature for me to enable oem unlocking and usb debugging when i get a new phone ill try agian with auto reboot unticked i did forget that one
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] loefflerm:
any chance for an unbranded stock rom as i got it unlocked to use with T-Mobile but i keep getting that configuration error #12 wants a sprint sim card to finish setup and cant for the life of me get rid of it other than that this works great with T-Mobile
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] Sands207:
Can you do me a favor and post a screenshot of your about device section in settings so I can see the software build you are running?
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] loefflerm:
SOFTWARE VERSION: J327PVPU1APL1 :good:

Build number: MMB29_J327PVPU1APL1
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] Sands207:
I guess the sim conflict you are seeing is that this a CDMA device on boost sprint and virgin which is sm-j327p. Is your j3 the GSM T-Mobile variant sm-j327t aka j3 prime? If so i can still try to help you i just need the T-Mobile firmware
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] loefflerm:
No it’s a sprint phone . I just thought it could be clean out of all the sprint stuff like a non branded unlocked phone . I just don’t like the finish setup in the status bar all the time. Is there a way to turn that off or block it in the settings? I looked but did not see anything.
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] Sands207:
You have root access currently correct?
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] loefflerm:
Yes I do
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] Sands207:
Are you using the odin firmware or one of my builds? Can you make calls? data and text both work?
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] loefflerm:
It is bone stock rom that came with the phone from sprint I just rooted it to get it unlocke to use with my carrier and yes Tex,date,phone works
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] mobidutch:
These ROMs you are building get rid of all the Samsung bloatware stuff like Galaxy Apps, Knox and Lookout, correct? If so, any chance you could also build one for the J327A for AT&T?
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] Sands207:
I can try, link me to the firmware and ill give it a shot.

Edit: If you could screenshot your about section that will help me match up the correct firmware. Are you using MM or Nougat?
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] mobidutch:
I appreciate your willingness to have a look at it. I have actually not yet been able to find the stock AT&T ROM online. I am not sure if anyone has rooted this device.

I'm currently on the road with a different phone, but will reply to this post again with a screenshot. Thanks!

Edit: attached screenshots of the "About Phone" section.
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] Sands207:
What is your phone known as, its a galaxy prime correct?
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] mobidutch:
AT&T just calls it the Samsung Galaxy J3 (2017), see here. I think some places refer to this AT&T version as the "Galaxy Express Prime 2", like GSM Arena here.
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] Sands207:
Do you have twrp installed? I found firmware but it doesn't match your baseband. We could also use a twrp backup if your firmware isn't yet available.
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] mobidutch:
Not yet, but I will tinker with it. May take a few days though. Thanks!
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] SonderTech:
His firmware is probably an updated one,i did find one that was supposedly released in april, he could probably redo the ota update after.
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] mobidutch:
Ugh... the webz is a zoo. When I search for "install TWRP on galaxy express J327" I get tons of pages that look auto-generated with just phone model numbers replaced. They all sound fishy to me. Would you be able to point me to a trusted source for installing TWRP?
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] SonderTech:
https://xdaforums.com/galaxy-j3-201...wrp-3-1-0-1-samsung-galaxy-j3-t3573607/page28
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] mobidutch:
Installed TWRP from Play Store, and tried to execute "Backup Existing Recovery" to my SD Card, but I am getting the message "Device not rooted". That was to be expected I guess.
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] Sands207:
Did you use odin to flash twrp, you should be able to root after if you flash the latest supersu by following the guide to a t that [MENTION=8293730]SonderTech[/MENTION] posted. Try to give it a shot, you need twrp installed at system level. The twrp app from play store is meant to use after you flash to help you keep twrp updated.
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] SonderTech:
It has to be through Odin.
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] mobidutch:
Ah. It's been a few years since I last rooted an Android phone, but it's coming back to me now. Just installed the USB drivers and Odin 3.12, and enabled USB debugging on the phone. I'll have some more time for this later tonight. Thank you for your patience with this relative n00b.
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] Sands207:
Glad we can help ?
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] mobidutch:
OK, I can get the phone in download mode (see attached photo of tiny boot screen) and Odin sees the phone. But before I go ahead, will flashing that TWRP image for the J327P (Sprint model) onto an AT&T phone (J327A) not screw things up?

EDIT: Also found a ROM image for the T-Mobile version here.
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] Sands207:
As far as twrp fstab goes we are a match so go for it. If you flash a ROM meant for another device you may have a negative result. [MENTION=8293730]SonderTech[/MENTION] or I can help you make a rom for your device
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] mobidutch:
Here's the current status:

1) I downloaded "twrp_3.1.0-1_j327p_14317.tar" via this thread.

2) Also downloaded "no-verity-no-encrypt_ashyx.zip" via the same thread.

3) Downloaded the latest stable and test SuperSU release here.

4) I booted the phone in download mode and started Odin 3.12.10.

5) Selected the TWRP tar file in the AP slot, verified that "Auto Reboot" was unchecked, and clicked Start.

The log says:

<ID:0/003> Added!!

<ID:0/003> Odin engine v(ID:3.1210)..

<ID:0/003> File analysis..

<ID:0/003> SetupConnection..

<ID:0/003> Initialzation..

<ID:0/003> FAIL! SHA256 is invalid

<OSM> All threads completed. (succeed 0 / failed 1)

What am I missing ?
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] mobidutch:
Found something on a "sha modified odin" and gave that a try. Now I am getting a different error:

<ID:0/003> Added!!

<ID:0/003> Odin engine v(ID:3.1203)..

<ID:0/003> File analysis..

<ID:0/003> SetupConnection..

<ID:0/003> Initialzation..

<ID:0/003> Get PIT for mapping..

<ID:0/003> Firmware update start..

<ID:0/003> SingleDownload.

<ID:0/003> recovery.img

<ID:0/003> RQT_CLOSE !!

<ID:0/003>

<ID:0/003> Complete(Write) operation failed.

<OSM> All threads completed. (succeed 0 / failed 1)

On the phone is shows the following error message in red: SECURE CHECK FAIL: (RECOVERY)

The phone still boots OK to the stock firmware, but now it gives the warning: "Urgent new software updates are available", specifically naming the "Emergencymode Service".
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] mobidutch:
Learned that the SECURE CHECK FAIL error above is probably due to the fact that the phone shows "FRP lock" enabled in download mode. Apparently I have to "Unlock the bootloader via fastboot".

I installed "ADB Minimal and Fastboot". But the problem I have now is that the command "adb reboot bootloader" simply boots the phone like it always does. It does not go into some special "bootloader mode", so I can't run the command "fastboot oem unlock".

Any suggestions?
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] Sands207:
I have never used fastboot on my j3 but in the past on a few others i used [/CODE] fastboot devices and then fastboot reboot bootloader to enter fastboot. If you are using linux it may take using ./fastboot devices to acknowledge the device
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] mobidutch:
Turns out that you can disable the FRP lock by simply booting the device and making sure that you are logged out from your Google account. Now when I put the phone in download mode, it shows "FRP LOCK: OFF".

However, when I try to flash the tar file in the AP slot, it still fails:

<ID:0/003> Added!!

<ID:0/003> Odin engine v(ID:3.1203)..

<ID:0/003> File analysis..

<ID:0/003> SetupConnection..

<ID:0/003> Initialzation..

<ID:0/003> Get PIT for mapping..

<ID:0/003> Firmware update start..

<ID:0/003> SingleDownload.

<ID:0/003> recovery.img

<ID:0/003> RQT_CLOSE !!

<ID:0/003>

<ID:0/003> Complete(Write) operation failed.

<OSM> All threads completed. (succeed 0 / failed 1)

On the phone its says:

FRP LOCK: OFF

Secure Download: Enabled

WARRANTY VOID: 0

SECURE CHECK FAIL: (RECOVERY)

I am officially confused. Not sure where to go from here....
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] SonderTech:
If I remember correctly Samsung devices cannot fastboot.
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] GabiML:
This rom is for j3 2016? Can you give some screenshots?

Sorry i think wrong threat!
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] SammaelAkuma:
Actually, the ROM that [MENTION=6085001]Sands207[/MENTION] posted/created is for the J327P which is the J3 Emerge only.

In other news, traded some crypto to get enough to get the SuperR donation version. Using that in conjunction with [MENTION=6085001]Sands207[/MENTION]'s QI2 attempt's META-INF folder and ArchiKitchen, I'm thinking about releasing a Deodexed/Deknoxed Stock QI2 image for people to use as a base for their ROMs for the J327P. It's made and I've tested it myself to ensure it works. The issue is getting it uploaded. And then to work on getting my Emerge S8ed ROM back up and updated.

I know people may think the above is "thread-jacking", but I'm actually just giving a bit of news for those interested in making a stock based ROM for the J327P.

EDIT: The base rom will be for Boost Mobile only, afaik. Can't test it on other variants of the J327P.
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] mobidutch:
I think I have reached the end of the line trying to install TWRP on the J327A. Don't know where to go from here after the status I posted above. Bummer.
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] Sands207:
Interesting.
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] mobidutch:
Gentlemen... would you have any more suggestions on how to proceed with flashing TWRP on my J327A?
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] Ph3ar.:
As far as I can tell from googling , root doesn't seem to be available for your model , locked bootloader , but I'm only relaying info I'm reading . if that's the case I don't see how you could get twrp on it . I'm not a whiz and I'm not saying this is the gospel .
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] mobidutch:
Yes...I think you are correct. I am going to have to let this go. I think I am going to sell this phone (pretty much brand new) an get a more flash-friendly Android phone to play with. Thanks for your reply.
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] Daisflaque:
Well any thing I can do for the build? I am not the best coder.. But have compiled a few roms in my day. Let me know.
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] rockysready:
If i flash the rom at the top of page 1 will it be upgrading me to "AQJ3" ?

And if i flash it will i still be able to get back to APL1 or any of the earlier stock roms that are odin flashable?

Thanks in advance - Rocky
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] SonderTech:
At the moment there is only an APL1 boost mobile rom and a qf4 Virgin mobile rom up. And as I said in the op you will not be able to downgrade after you take the AQJ3 update.
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] k5t4j5:
So OP, any chance you can give a little info on what this build consists of? I understand that it's closer to stock, but anything else. Init tweak junk, minor mods, debloat, deodex, etc? Or just the Magisk? Nice to know what I'm flashing beforehand is all. Apologies if there indeed IS info posted somewhere & I missed it. Thanks

---------- Post added at 02:06 PM ---------- Previous post was at 01:29 PM ----------

Actually, details are not needed about the build for myself personally, I downloaded it and looked through it some. It'd likely prove helpful for yourself in the future if the OP had more info, only my opinion though ?

One thing I am pretty curious about though. You mention to update to AQJ3, but I'm confused as to why since this build posted shows " J327PVPU1APL1 " for build number, software, and CSC build#. Am I missing something here? I know a thing or two on about Dev work in the Rom world, but this is my first Samsung, so plenty of learning for me lately. Thanks
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] SonderTech:
That was my first set of roms that I decided to introduce to the XDA family. And normally I debloat, zipalign, buildprop tweaks, multiwindow support etc.
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] SonderTech:
At the moment I'm just waiting for sammobile to upload all the updated firmware for at least the boost mobile variant of the j327p QJ3 firmware, so I can get to rom making, once again.
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] SonderTech:
I do also have boot animations that I made into qmgs on afh.
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] Curtis1973:
Wanted to report that I tried the QF4 version of virgin mobile rom with success IF I did NOT do a hard or soft wipe in aroma ,also this applies to a straight format of data in twrp where you have to enter yes in order to wipe. If you do any of these three you will most likely have carrier setup issues. I fix is available to avoid issues. You can edit the sw_configuration.xml in the rom and remove all customer src= lines except for the one you want configured. for instance a virgin rom would only have the customer src= line for virgin,the same for a boost or sprint rom and so forth. Also it seems stock gallery is missing. Is there a download around for it by chance? I am experiencing a carrier setup wizard has stopped message as well. I assume this app can be deleted AFTER setup but am unsure as I have not tried. Outside of these things all is well.
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] k5t4j5:
Thanks for the info. Nice job for a start. Definitely on the lighter side, which is Always a good thing with these devices I'm noticing. The amount of trash eating space & bogging down ram is truly pathetic. Samsung's needs to star on an episode of hoarders or something....
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] Curtis1973:
Samsung needs to take a few notes from LG. In all honesty,LGs OS has surpassed touchwiz. Its a joke. Hell the J3 has none of the feel of a real touchwiz device like the S series. Its stripped down bull****. LG does not strip down their low and mid range devices any where near the extreme extent Samsung has with these devices. My next purchase will be LG. The stock apps on LG are useful. The J3 for example has tons of apps that do nothing. Useless ram eaters. Ive deleted 99% of the garbage. And the lockscreen. I dont even consider it a lockscreen. There is literally no functionality to it at all. Its useless. Overall I give the J3 j327p barely a 2.5 out of 5. But on the bright side I guess it beats a locked down ZTE turd.
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] SonderTech:
Do you know of anywhere you can find firmware dedicated to the LG, like Samsung has sammobile?
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] Curtis1973:
There are many sites to get lg firmware.

https://lg-kdz-firmware.com/

https://lg-roms.com/

https://www.mylgphones.com/download-lg-official-stock-rom-firmware

http://devtester.ro/projects/lg-firmwares/

none of these are actual lg operated sites,but the firmwares are of a wide variety. and last i checked sammobile was an independent site not owned by samsung.
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] SonderTech:
It is an independent site but it is most well known to be up to date on Samsung firmware, which is what I was trying to say.
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] DesertEagleSlim:
The newest version of your rom worked for my Sprint QJ3. I have wifi now. ?? really all I wanted to work was the wifi. Flashed multiple different Roms and none would work. But this one did. Thanks a million for the help. Much appreciated

Update.... Initially worked, but now System ui keeps closing. Won't even go to home screen. I can access pull down and settings but home and recent buttons won't do anything. Any ideas?
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] SonderTech:
That one was for boost mobile and did you try flashing gapps as the op suggested?
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] DesertEagleSlim:
No sorry. I'll try gapps and see. I dont care if it's for boost not going to use it as a "phone" but so far that rom is literally the only one that the wifi will work on. Lol which gapps? 6.0?
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] SonderTech:
This phone only has 6.0.1 at the moment.
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] DesertEagleSlim:
Wiped all again formated data ect.. Flashed rom again, then gapps. Same thing. System ui crashes. Won't open past lockscreen. Setup works. Wifi works. Can access settings thru drop down notification panel. Just no home screen (home button dead) and recents button brings up the System Ui not responding.
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] SonderTech:
Do it after you set up everything
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] SonderTech:
Instead of reflashing the ROM just flash gapps again.
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] DesertEagleSlim:
Tried that 1st before wiping everything. Same result. ?
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] SonderTech:
That's weird, because that's how I did it. After I reach the home screen I flashed gapps and I was all set.
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] SonderTech:
Where did you get the gapps?
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] DesertEagleSlim:
Open gapps
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] SonderTech:
From the play store or the open gapps website?
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] DesertEagleSlim:
Open gapps website. Arm 6.0 nano
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] SonderTech:
Do arm 6.0 stock. Not all of the choices include the launchers
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] DesertEagleSlim:
downloading now will try in a min

---------- Post added at 12:43 PM ---------- Previous post was at 12:07 PM ----------

Damn right! It worked thanks a million! I love you guys.
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] zixxorb:
Could you have sideloaded a launcher?
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] SonderTech:
Im not sure. I don't normally sideload files
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] Sparky980:
My Wifi isn't working, went and installed the latest build of the ROM.
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] Sparky980:
Boost but Bluetooth works just fine without any issues. It's only Wifi i'm having issues with.
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] SonderTech:
Did you follow my instructions in the op exactly?
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] Sparky980:
Yes I was on the stock AQJ3. Did a reset. Then copied everything over and flashed.
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] SonderTech:
What did you copy over?also, what is the name of the zip that you downloaded?
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] Sparky980:
Only copied over the Gapps, the ROM zip and supersu. Using the stock 6.0 arm gapps like you said in the OP.

EDIT: j327p_magisk_updated
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] zixxorb:
Gonna post the Discord link here also just in case:

https://discord.gg/xBuRtm8
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] SonderTech:
I don't do SuperSU, did you flash it? If you did, this is not following my instructions exactly.
[Samsung Galaxy J3 (2017) ROMs, Kernels, Recoveries] Sparky980:
OK I'll re install and see what happens. Do I have to go and re install the stock firmware too, and then install the rom?