yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] soccerref:
Just follow the OP tutorial. If you cannot :D you should not have a rooted phone
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] Frustrated Android User:
samsung j3 otg pendrive coming and going

hi there my samsung j3 also has these problems of wifi password problem and the above mentioned stuff and I am glad there is a solution to this,

but there is also another problem for whose solution is not listed here ,that is whenever I plug in an otg cable with pendrive it may come at first but after disconnecting it and re entering it again it doesnt come , after repeating this process it shows up again but again but after maybe a hundred tries and then again it disappears after disconnecting it , so any solution through root guys ?
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] jerryspring:
j320p

will j320a and j320az roms flash on a j320p?
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] SawaYoshi:
ayo, was tryna root my new (lmao) j320az, got softlocked on boot splash screen, can't do anything but boot into recovery, boot into odin, or reset by resetting battery. assuming it's due to a bad flash but not 100% sure. how would i go back to either stock or root fw?
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] muradak5545:
Can this procedure will work on the following build.

Nougt 7.1.1

J320AUCU3BQI5

Thanks in advance
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] doc221978:
It took adding the model and manufacturer in the build.prop AND that specific super sume 9.7.4p to get it for me. 9.8.6 crashed like everyone else's even after editing the build.prop. I used kingroot 5.0.5(just for reference). Thank you everyone!

Come this weekend when I have time for my phone to be down, I'm going to try using flashfire to flash a unified j3 rom..... More than likely it will be an epic fail, but easy to recover. On a similar note, flashing the j3 exynos twrp(3.1.0 j3lte) will soft brick the phone. I made that mistake already. I expect similar results from flashfire, but it's worth trying.

Again, thank you everyone.

Update: the unified rom is not for the exynos chipset. I don't think there is any way it's compatible.
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] bobbyp1086:
I got xpose after 5 bricks....
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] shirleys143:
FWIW. Success on a GoPhone J320a. Basically follow ashyx's instructions here verbatim and based on my experience with the J120a. Used the same programs except the bootloader. You can check my post on the other threads. I don't think I can post links yet.

Subsidy unlocked phone, flashed bootloader, rooted with Kingroot, AppQuarantined Security log agent, then SuperSU_me to remove Kingroot, (I did not reboot after root, I think this helped), modified build.prop, flashfire full backup, TB backup (because I always use it), Adaway, Xposed, Marshmellow SD fix, Root cloak, App settings and several others like to automatically dim/brighten display.....

Everything like my J120a and have been running fine for the past 3 days. Stable and not had to reboot. Have not really had a chance to run it through it's paces with more apps.

Did not do Step4 Alternative and Step 6. SuperSU_me worked. ro.product.base_model has the correct model number and appears in settings/system/about device
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] NateDogg1232:
Just a quick question. .. Do you think we will ever see custom recovery and ROMs on this device?
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] ashyx:
Custom recovery, highly likely not. Custom rom stock based, maybe.
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] jonpjingleheimler:
hi. I get this message also. adb devices does however show my device, so I just ignore it
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] bobbyp1086:
Yea I figured it out, had to change the directory in command.

---------- Post added at 10:24 PM ---------- Previous post was at 10:22 PM ----------

Wouldn't that be xposed? If so I can help with that. I almost killed my phone getting xposed this devoice
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] jonpjingleheimler:
You can also get the model number back if you flash the full stock firmware back on your phone and let it boot. then flash the eng boot and reroot. I have root and my model is showing in the build prop. the no model number came up when I only flashed the ap. as a side note a playstore flashlight app works just not the stock
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] NateDogg1232:
I would love to know how you did it!
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] bobbyp1086:
https://xdaforums.com/xposed/unofficial-xposed-samsung-lollipop-t3180960

Follow this guide, all others lead to brick. make sure you have flashfire, odin and a back up of your rom. when using flashfire, try flashing rom with xposed at same time, well rom first then xposed after, uncheck everroot, and boot into recovery from there and then just boot to boot loader, only way that didnt brick my phone
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] ubigred:
Anyone have the full stock tar?
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] ashyx:
The rest of it is here : https://www.androidfilehost.com/?fid=529152257862710882
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] ubigred:
File is only 60mbs??
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] ashyx:
Correct, that plus the AP part posted in the first post equals a full set of firmware.

https://www.androidfilehost.com/?fid=745425885120713788
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] ubigred:
Why isn't all compiled together?

Speaking from a noob perspective.
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] ashyx:
Because all that was required was the boot and system image.
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] ubigred:
No mirrors found!
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] ashyx:
I think you need to change your browser or disable your ad blocker. 4 mirrors found.
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] ubigred:
I'll try again in 15.

Thanks bud
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] bullracing:
Hello, a few monts ago I got a J320a at&t gophone bricked somebody was helping me here to bring it bak to life again, I got another J320A from AT&T working perfectly it has this firmware version

Galaxy express Prime

SM-J320A

J320AUCU2APJ2

MMB29K.J320AUCU2APJ2

I was wondering if is posible to make a firmware backup for use it on Odin to flash it to the bricked phone.

Thanks
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] ashyx:
The AP part of the firmware is posted in the first post. Flash that with odin.

The rest of the firmware is here:

https://www.androidfilehost.com/?fid=529152257862710882
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] bullracing:
Thanks Ashyx I already tryied it, but after flash it with Odin remains the same. in a Boot loop at Samsung's Logo
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] ashyx:
Have you flashed the whole firmware and factory reset afterwards?
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] bullracing:
Already flashed the whole firmware, and try to get into recovery mode, but the device only gets to Samsung Logo and nothing happends.

The phone only boot well at Download mode, as any other samsung device.

---------- Post added at 11:55 PM ---------- Previous post was at 11:06 PM ----------

@ashyx

there is any way to make kinda Readback or backup from my other device that has J320AUCU2APJ2 / MMB29K.J320AUCU2APJ2 version to flash it on my bricked device?
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] ashyx:
No, if the stock firmware posted doesn't work then there is an issue with the device.

So even if you could make a flashable backup it's unlikely to work either.

Did you ensure to factory reset after flashing all 4 files?

Edit: If you can't get into recovery and the device doesn't boot then this is a good sign of a hardware fault with the emmc.

Devices suffering this symptom have always turned out to have faulty hardware.
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] DamienMc:
Odin transflash install should get you into recovery off sd, in order to wipe

Never tried on this device tho
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] bullracing:
Thanks for the help Ashyx

I strongly think that this is not a Harware issue, but how ever I wont refuse that idea: I would really like to try to make a Backup of the other device that i have, because I see that the firmware version is a little diferent from the one you posted, however I tryied flashing with the 4 files, but I can't get into recovery mode.

I think that this phone needs another firmware, so I need to make a backup from my other phone, I'll not ask for a Step by Step guide couse I know that I will take a lot of time, I really appreciate your help at this forums.

So can you guide me to were I can find how to extract the firmware and make it "flasheable" with Odin, that will be very helpfull.

Thanks too much!

---------- Post added at 04:03 AM ---------- Previous post was at 04:02 AM ----------

Can you tell me more about that?
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] ashyx:
OK I'm gonna lay it on the table for you as we seem to be a little unclear as to what the situation is and it'll save you some unnecessary messing.

This device has a locked bootloader it is impossible to flash anything other than stock firmware. The firmware I posted is the full official stock firmware.

It has already been confirmed by others it works as it should.

As long as it flashes with ODIN without error then your device should boot. If the firmware was not correct it would be rejected and fail to flash.

You CANNOT make a backup of another device and flash it with ODIN. Quite simply it will NOT flash. The locked bootloader will not accept an unsigned image.

The ONLY way to flash the non booting device is via ODIN or Smartswitch.

If your device will not boot to recovery or boot to system then then it is highly likely the emmc of the device is damaged.

There is no other explanation apart from user error.

I'm curious as to how the device ended up in this state?
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] bullracing:
Thanks, I understant what you are telling me. The device was working fine untill one day it freezed at the system UI don't remember what they were doing with it exactly, but I can assure that wasn't a Hardware problem. The phone simplelly freezed, I forced a Reboot pressing (Volume - button) + (power button) by 15 secconds. The phone Reboot but couldn't pass the Samsung's Logo.

I also tryied to update the firmware via Kies and Smart Switch, but happends something very weird. At the Smart Switch App I enter the Phone's Model , then it asks for the S/N number, I type it when I press "enter" to confirm the information the Aplication close it self, I don't know why only happends with this model the J320A... I thought that was my computer, but I've updated recently other samsung models without problems at Smart Switch.

Its very weird this device :eek: , I can't figure out why if it boots at Download mode, Odin flash the firmware without errors I keeps at samsung's Logo un a Loop. Also know whats you told me, I tryied with the J320 firmware from a diferent carrier and Odin shows the error that the firmware does not match with the phone.....

---------- Post added at 07:46 PM ---------- Previous post was at 07:43 PM ----------

I thought that was possible to make like with the MTK devices, a readback from another Device and flash it back to anothers. But seems that I was wrong.
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] ashyx:
The issue you've described is likely due to a hardware problem.

I've seen others describe the same thing, UI freezes, device reboots and doesn't boot.

The firmware flashes fine, but still doesn't boot. Those that have had the same symptoms have been diagnosed as hardware failure.

Honestly I'm trying to save you a lot of frustration.

Send it in to Samsung, get on live chat and they'll arrange collection and repair.

When you do I'm pretty sure they'll declare a hardware fault.
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] bullracing:
Okay I really appreciate your help, well I can say, I tried it :fingers-crossed:

Thanks alot Ashyx
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] bobbyp1086:
Yes in the op is the the rom I been using on all my bricks, 8 and counting lol. Once you get flashfire up you can backup the whole phone, I mean the whole phone like a clone I suggest over adb.

---------- Post added at 07:26 AM ---------- Previous post was at 07:14 AM ----------

Kinda 50/50 on topic. Anyone know android studio? More specifically the AVD aspect. I'm trying to clone this device they're so I can stop messing mine up so much lol. I don't really know how to use it but seems like it would be a good thing to learn
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] bobbyp1086:
Hey anyone know of a list of bloatware/system apps that can safely be removed from the ATT Go Phone version?
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] ashyx:
Root package disabler has a safe list debloater.
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] bobbyp1086:
Hey any chance you could upload the stock build.prop?
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] ashyx:
Of course but it will be tomorrow now as I'm turning in for the night.
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] doc221978:
I just wanted to share that this also works for the J320AZ (Cricket but same exact specs). I was given one that had the FRP locked to play with. I unlocked it, then rooted with this method. Now I have a spare phone to experiment with.... I will happily use this phone as a guinea pig for anyone trying to port a rom. I'm going to try porting myself, but I don't have the skill that some of you guys have.
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] ashyx:
Thanks for confirming.
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] jonpjingleheimler:
I have a spare as well. If it's a matter of unpacking and repacking I would like to take a crack at a debloated version of the factory ROM. If there is relevant thread as to how to really lighten this ROM I would appreciate directions to it
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] ashyx:
Yes you should be fine modifying the stock rom as long as the eng boot is used.

A good start is SuperR kitchen. I advise letting the kitchen pull the system.img from the device as you will need root to be intact.

Good luck with your modding.
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] DamienMc:
You can remove quite a bit safely, screenshots are deodexed too tho...maybe I'll try to package up a zip this weekend
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] doc221978:
You're welcome, and thank you for the root, and for adding it to the title of the thread.
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] bobbyp1086:
I second that motion, although i got the latest Exposed installed i wanna help break this cheap phone wide open, been testin different things in AVD but not the same as the phone
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] JaXxz:
Kingroot likes to totally freeze up my phone during the root process, making me have to remove the battery, is that normal?
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] NateDogg1232:
There seems to be a new software update available... Do you guys perhaps think I should disable the update application?
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] ashyx:
You can't download it anyway if you have root. Stick to manual updates, it's safer.
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] ashyx:
Yeh it happens however sometimes it's part of the process and it will recover.

Obviously if it's frozen for more than a minute then you may need to pull the battery, but kingroot usually continues after booting.
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] JaXxz:
just had it say i had successful root then it froze and i had to reboot, and now im back to trying to root again :crying:

Success! now just to get xposed
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] JaXxz:
what recovery are you all using?
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] jonpjingleheimler:
as far as I know there is only the stock recovery and its not likely a custom one will become available any time soon. I use Flashfire to make a full backup to the sd card. if crap hits the fan I can always reflash stock firmware or just the eng boot reroot and restore my backup. its a pain but definitely worth the effort for me
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] shirleys143:
I used an older version of Kingroot because the latest versions of Kingroot and SuperSU-me were released close together. I just take the battery out if it appears to freeze for a minute. But on the J120a I think I just left it and came back an hour later with Kingroot or SuperSU-me and it finished and rebooted. With the J320a, seem to remember I just pulled the battery after a minute or 2. That worked too.

---------- Post added at 05:51 PM ---------- Previous post was at 05:47 PM ----------

I disabled the updater and checked to see if the file was already downloaded. In my case, the update file appears not to be downloaded.

---------- Post added at 05:54 PM ---------- Previous post was at 05:51 PM ----------

I used flashfire to flash xposed. Also did full backup of all partitions.
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] JaXxz:
any modules that are confirmed working?
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] bobbyp1086:
i can conifrm that Gravity box works (minus sound and lock screen)

bootmanager

luckypatchger

no overlay warning

those are what i have and can confirm, there is also a list of compatible mods for marshmallow here on xda as well

---------- Post added at 01:23 AM ---------- Previous post was at 01:10 AM ----------

is it possible to flash twrp onto this device? i npticed the oem unlock is also an option what can we do with that with no fastboot?

---------- Post added at 01:42 AM ---------- Previous post was at 01:23 AM ----------

i am so glad i re-read this lol almost tried flashing that twrp, i am looking for 1 that will work will update when/if i find one
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] ashyx:
I thought we were clear on this?

There isn't and highly likely never will be a custom recovery for this device.

Don't you think I'd have compiled it by now if it was possible? :rolleyes:
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] bobbyp1086:
I've heard of a way out there the instructions weren't clear, I was just dbl checking with the pros
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] ashyx:
There is no way on a bootloader locked device except safestrap, which is pointless because it's no better than Flashfire which is far more capable.

Safestrap was also discontinued 3 years ago.
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] longlife742:
Good work....
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] HomeInvasion:
Managed full root through kinguser/supersume/super su. removed all bloat. have bisybox, gravity box, exposed, and lucky patcher. all seems tp be working fine on my end.
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] Drackula:
How did you get xposed modules to work without TRWP? I thought you have to flash it?
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] ashyx:
Flashfire.
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] nuclearfarts:
I tried to install Magisk, got "System software not authorized by AT&T has been found on your phone." My computer also refuses to recognize my phone, despite having the drivers installed. Am I perma-bricked or is there some way to recover?
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] jonpjingleheimler:
Reflash the Eng. Boot in download. This thread is rather thorough you should be able to find everything you need. Your phone is not "perma-bricked"
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] DamienMc:
Supersu me does not remove the immutable files kingroot installs, leaving the system dirty and with the possibility to hinder installing a rom in the future.

Mr.W0lf does not have this issue because his script uses chattr -i before trying to delete.

Unfortunatly the script fails, with unpredicted results, making it somewhat difficult to track down.

Here is a working script package for our device. It is the prefered method to get rid of kingroot.

SManager would not work to execute the script, but both terminal and root browser did so successfully.

Btw when kingroot freezes theres no need to pull the battery, just hold - vol & power until the phone reboots ;)
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] ashyx:
Version 2.0 works just as well, regardless of the ignorable errors. It still does the job.
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] nuclearfarts:
My computer wasn't recognizing it, so I thought Odin wouldn't either. Started Odin, proceeded to be proved wrong. (I'm also using a different computer, which might have something to do with it.) Phone's working again.

Just to be clear, there's no way to install Magisk, right?
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] ashyx:
Nope. You can't install anything that modifies the boot image
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] legnison:
I can confirm this method works for the Samsung Galaxy Sol (Cricket)

SM-J321AZ

. Thanks.
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] NFILTR8TER123:
Ghh
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] sjowns:
Does anyone have a fix for the native flashlight app?

Did the original build.prop ever get posted? Could there be some string missing that's breaking the flashlight like with the wifi and the model #, or is it something with the more permissive kernel?
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] bobbyp1086:
I did get xposed installed and running smooth
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] DamienMc:
The eng boot is what broke it, no build.prop or csc edit I know to bring it back.

I've just been using torch. haven't looked into it too much, but DO NOT try the xposed flashlight fix module. It'll brick
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] fitzit:
I do not have the ability to do this. I'm not a tech guy. Is there a web sit you can recommend where I can recruit someone near me to do it? None of the computer shops near me will do it. Thanks. I just want to put software on my kids phones so I can track them on trips this summer and all the best require root.
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] somelk9:
lost my abillity to tether. it turns on and i can connect but no network access. att says its on my end. I swapped my sim into my j1 and it works. any thoughts.
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] ashyx:
Probably a build prop edit. Try the following.

net.tethering.noprovisioning=true

If not have a Google.
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] sjowns:
Can anyone post the original build.prop? There are flashlight strings in some of the other Galaxy devices, as mentioned here and it would be worth diffing the two files to see what else is missing, such as the recently mentioned tethering.
[Samsung Galaxy J3 (2016) Guides, News, & Discussio] sjowns:
I think this is the culprit for the flashlight:

diff -u boot/ramdisk/init.universal3475.rc ENG/boot/ramdisk/init.universal3475.rc
--- boot/ramdisk/init.universal3475.rc 2017-05-14 15:59:23.361359637 -0400
+++ ENG/boot/ramdisk/init.universal3475.rc 2017-05-14 16:06:55.052545917 -0400
@@ -35,10 +35,6 @@

setprop vold.post_fs_data_done 1

-# Permission for flashlight control for HAL3.3
- chmod 0660 /sys/class/camera/flash/rear_torch_flash
- chown media system /sys/class/camera/flash/rear_torch_flash
-
# Permissions Camera
chown system radio /sys/class/camera/rear/rear_camfw
chown system radio /sys/class/camera/rear/rear_camfw_full

Is it possible to modify the engineering boot.img, or is it somehow signed or checksummed by odin?