yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] minhtv19210:
Wow. I hope a finished ROM will be come on someday soon :3
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] uhes:
Nice ?
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] TBM 13:
Nice work! I would like to help a little bit more but it's my main phone and i never fixed anything in a device tree, just compiled haha
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Erioernesto02:
Hope
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] GuestK00210:
good work!but still a long way to go after 2 year!
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] TBM 13:
Are sensors working? (proximity, accelerometer, Samsung orientation sensor)
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Prove N.:
The orientation is certainly not working yet as it uses some of MM samsung libraries. (In fact, Wi-Fi/BT is too, have to use patch from Doogee X5Pro)

Haven't tried Proximity/Accelerometer yet.

E: pretty sure I am going to fix main stuffs first like audio, media, MTP, Lock Screen Security (because I removed keystore lib to boot this phone, can use porridge's too) and the hardest which is RIL/Telephony as this phone is the first of a kind.
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Prove N.:
little push. (just want to get some dev in works because summer is coming near to ending here :< )
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Critxz:
Keep up the good work my guy!
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] TBM 13:
Add to working/not working list:

Camera

Internal microphone

Radio

Headphone

Btw, is Bluetooth working 100% fine? Because in the XenonHD ROM of Melekpro i wasn't able to send a picture from another phone to the J2 Prime.
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Prove N.:
i just connect to my laptop lol. Haven't tried sending files~

btw, headphones not working? Kinda weird when audio is *mostly working (again, haven't tried)
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] TBM 13:
Idk, i wasn't able to try your LOS 14.1 because it's my main phone.
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Prove N.:
Headphone is working. But it is finicky / unstable because the main audio also is.

Bluetooth transfer works both ways (check images)

e1: audio over bluetooth works too~

-

oh, J2 Prime is my only phone lol. An used S3 is coming, so I can fully working on this device :) (except, Its about time to school here..... )
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] TBM 13:
Do you make TWRP backups or you flash the ROM, install all the apps and configure everything again?
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Prove N.:
the latter one. I have my laptop for everything already, but I can't live without YouTube and updated Samsung Internet lol (is currently the only one with true Dark Mode, and I'm more of a night owl)

To be fair, I'm still using a 2 GB SD card I bought 7 years ago, so (except EFS,) TWRP backups are no go to me ~
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] TBM 13:
I forgot to add SD Card.
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Prove N.:
I'm still using it normally though. But melek reported that too and I'm working on that.

Still stuck at why RIL/telephony/baseband/IMEI does not behave (I cannot find any logs related to those, except nvram (nvdata?) not mounted/read correctly)
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] muchbass:
Not dead at all. The developer has made some progress on the source code this month.
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Mightx:
Whether that source code progress translates into something feasible and tangible for the device community is entirely a different story...
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Jake1702_:
Well he probably wouldn't have made source code progress if there was no intention to make something usable for the device.

I still have (slim) hope that this will at some point be usable enough as a daily driver ROM.
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] nancy6:
Video Recording is not working, please fix.
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Skywar1907:
Hello, i have some solution for recent apps button problem just go : system/usr/keylayout and edit Generic.kl

Find APP_SWITCH default is key 580 Change it to key 254 and save.

u need root for this.
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Long266:
Unfortunately, it doesn't seem to work
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Skywar1907:
its the file i changed strings in root folder location is /system/usr/keylayout/Generic.kl

its fix my problem. button is working for me.

i cant attach files so

Generic.kl

drive.google.com

here is the link of file
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Long266:
Thanks ! It worked
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Murad Aliyev:
Hello Friends Please improve this Rom. It needs these devices a lot, at least this rom should be nice and useful. Thank you.
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Murad Aliyev:
SIM card not working. So nothing is working. Please help me.
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] msx4004:
you hve a rom backup?
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] ThirtyFour:
is there any way to get simcards to work?
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] KlausPactus:
I'm about to install this rom in my phone, about the sim card it just stopped working out of nowhere? And about the GPS how to disable in SYS? How to do that, I never did this
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] nodlust045:
how many free storage on this rom?
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] A34425:
Thanks for your effort what i whan to know is if the port also include architecture chang like from armv7 to armv8 b/c i have anther phone that is good in spec and android 11 but it's also arm64 in 32bit os mod
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] adham khaled:
hey man I'm done with my phone

can you please solve bugs because I really need it
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] soulGh0st:
im gonna try this method, but i have the model with one sim, also im gonna contribute with this rom to try solve the bugs
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] FazliBasturk:
Any work on sim card? Good rom except it doesn't see sim card
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Prove N.:
So I fixed RIL..

(OTA update should be availble for LOS14 builds from 2020-12-31. Manual install of course is always feasible)
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Sub_Zero2:
Wow. That's huge. Congratulations!
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Prove N.:
hehe thanks dad!~

(/s at dad part)
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] ShaDisNX255:
Idk, kinda sus.

Anyway, congrats man!
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] FazliBasturk:
Is the sim card working?
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Sub_Zero2:
Yes
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Prove N.:
Quick heads-up. You'll want to put your data SIM to slot 1 for now.

(the one that shares slot with the SD Card)
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Marco10118:
Hello! Very good job friend! Thanks for your efforts, I came to comment on a problem I have, that as time goes by the internal memory of the device with this rom fills up inexplicably, I tried to find a solution but I needed to know if that bug can be presented in the beta, Thank you very much and keep working!
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Prove N.:
You'll want to look at /data/system/dropbox/

And squeal inexplicably.

(Yes I'm trying to fix it. It's the "neither /proc/wakelocks nor /d/wakeup_sources exists". And the usual I-know-where-this-is-but-dunno-how-to-fix-this. And also something strict_mode that is related to telephony but I'm not fluent in Java)

2022-02-10 edit:

Nah all the crap in dropbox is only 1MB. The real crap is at data/misc/logd.

I accidentally left persistent log on

If you are on 2022-02-02 build, get the update man. OTA update is working!~
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Ah9m7ed:
This rom is very good, I only have three problems, the sim card works, but the signal is not stable on 3g and only 2g works , and the battery drains quickly and the live display doesn't work, I would request if possible, can you please add support for signature spoofing for microg purposes?
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Prove N.:
Signal is fine by me if I lock it to 3G-preferred, so I'm looking into it.

Battery drain is known.

Signature Spoofing I'm still deciding if a nuke-bomb approach like this or a nuke-bomb but-with-a-key approach like this is better.

For the mean time, do try out NanoDroid's patcher or Lanchon's haystack.
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Ah9m7ed:
What about the live display? do you have any plans to fix it? I will retry make it 3g preferred, atleast I can confirm that the nanodroid's patcher works
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Prove N.:
Plan yes, How not yet...

And thanks ya for the confirmation.
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Akbar KanColle:
Wow nice job bro, i'm waiting hotspot fixed since i only use j2 prime for hotspot
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Mightx:
Great to finally have some progress for a Android 7 rom for this device since the J2P has been seemingly stuck at Android 6.0.1 stable almost forever. This LOS still has a long way to go to getting it daily-driver level stable but at least it's moving. All other projects for the device have been dead for quite some time now.
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] elmaxter36:
friend a question are you going to continue with this project or will you make one with android 10 or 11
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] ShamKY:
Hello friend, something different happened to me when running Lineage, I managed to use the SIM CARD signal in LTE very stable, leaving only one chip in SIM1, perfect. But it also happened that when I restarted the device the system went into an infinite loop and I did the following:

I installed Lineage first, then I installed Darkness OS on top of Lineage which made my device run both together, and Lineage was super stable with the bugs fixed. But the only bad thing is that Lineage with Darkness together the device goes back to android 6.0.1 , but the lightness of the system remains the same.
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] iFEARR:
Does anyone got headphones to work ? The phone detects them but still plays audio through speaker
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Prove N.:
it can work if I use other device's stuff, but then RIL breaks.

(More details, if you are interested, will be in PM or in J2 Prime telegram group)
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Prove N.:
you are running DarknessOS ROM, none LineageOS. There is no in-between lol.
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Prove N.:
you said it so easily as if making stable Nougat isn't hard enough and MTK has none of that reputation of no-custom-ROM.
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] ncarvalho99:
thank you for ur work bro, this revived my mother's phone
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Lucas j2 prime:
Faz a rom 18.1 android 10 pro j2 prime por favor tem aparelho mais antigo q esse com android 10 por favor nao abandonem o j2 prime😣😣😣😣
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] 3v1ltw1n:
Hi i am using 532f grandpplte i wonder if there is any progress with bugs is ril and lte fixed?

And what can we do for help
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Seif Hossam:
thanks for this rom I love it but can you fix WIFI hotspot and headphone because I need it and again thanks very much to revive my phone :love:
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Lendigo4:
Hello there! I just wanted to say that please don't leave this project midway. Because there are, still people out there like me who still use a J2 Prime. I love Lineage OS and I want to use it on my phone as a daily ROM. And only you can make it possible. You're the only one, as far as I know, working on Lineage OS for J2 Prime in this entire community. You're the only last hope for us, so please make my dream come true. I'm a student who can't afford a new phone so I'm always looking forward to this ROM becoming stable. I hope you'll pay attention to this. Thanks a lot!
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Prove N.:
Please be noted that it's real life taking away my time, not that I abandoned the project.

Have a good day !~
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] yahya_elaidi498:
i fixed the navigation bar by add this line "qemu.hw.mainkeys=1"

in system/build.prop now you can enable and disable the navigation bar

from settings/fnbutton

by the way you did a great job bro :)
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] ahmaddddddd:
any news on linageOS?????

is the development still going?

and is theres any way to fix wifi hotspot

btw you guys are doing really good job this is by far the best rom for j2prime
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] xXLambSauceXx:
Hey so I'm pretty new to modding and I was wondering, how do I update the ROM?
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Bonnie49:
Hello, I'm using your port and it's really working very well, however, some problems are still occurring but I would like to highlight these:

Battery life very low.

Freeze and random shutdown of the smartphone.

Log spam to \Android\data\

I'm aware of the battery life and log spam issue, but I thought the freezing issue was fixed.

Just for information here is a print of the battery life that reaches a maximum of 8 hours (WITHOUT USING).

Another thing that is quite bad is not being able to recharge the cell phone with it off because if the battery is very low the chance of turning it on is very low.
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Seif Hossam:
Can you update this rom and fix WIFI hotspot, headphone and GPS please 🙏

thanks for this rom 💖

keep going bro 💪
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] bigrammy:
Hi Prove N,

First Congratulations on solving this problem. (y)(y)

My Friend @jmpf_bmx Myself & Many others have worked on various Sony MTK devices & we have had the exact same RIL issues you have had but we were unable to get the RIL working. :cry:

Could you expand on exactly how you got a Stable working RIL Please. 🤞🤞

Sony L1

Sony XA

Thanks
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Prove N.:
ooooh a chance to thank for letting me kanging many stuff from X-L1 lol

anyway, all I've done was:

- some ramdisk changes (RIL perm, audioserver perm kanged from X-L1)

- basically simulate "stock" system (by reverting to stock audio hw lib, previously from wileyfox_porridge; and by adding all of etc/audio_param)

- multiple previous changes when only-Audio-or-RIL was a thing (basically modify java RIL file, use rild, libs and etcs from stock, yadi yada)

TL;DR: revert everything audio to stock. Suddenly RIL worked ok. (more patches needed for usability but later talk~)

The fix isn't perfect though since there's now the headphone/speaker bug that wasn't there when using porridge audio hw lib (stock Samsung lib kek).

Also note that take my brute force kinda fix with a grain of salt. Samsung RIL and Sony/MTK RIL aren't near similar~.
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Prove N.:
also F the deadline I'm like working with 0.1% brainpower while fixing bug in a basically bruteforcing manner.

welp!
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] bigrammy:
Many Thanks for the reply. (y)

Tean MAD did once comment about Bluetooth libs been part of the RIL which also links into Audio.

I guess it's just a matter of finding the correct recipe of Stock Libs and tweaks for Most of us.
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] SpawnerGGG:
Hello, I'm SpawnerGGG, after I made the LineageOS rom, I started downloading it immediately, I'm very glad, but after installing the rom I got some errors, please fix these errors or give the terminal codes of the errors.

Mistakes

Headphone (it detects Headphone, but still plays audio on speaker)

Camera: Video Recording

Phone sometimes freezes completely while sleeping and charging

It would be great just by solving these, please solve it!
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Prestgg:
Not working / Error

(KB) GPS

(KB) Camera: Video Recording

(KB) Radio FM

(KB) Wi-Fi Hotspot

(NW) Headphone (Detects headphone but continues to play sound through speaker)

(NW) Local video playback. (guiext-server crashes, possibly some rogue libraries)

(KB) VoLTE. Literally no Samsung phone has VoLTE running on AOSP ROM...

(KB) Encryption

please solve the problems
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Edissonm:
Reparen los errores que presenta esta rom
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Seif Hossam:
We Need a new update for this Lineage Rom ,pls :cry:

Don't discontinued it
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Edissonm:
Ok, Ok, when are you going to fix the bugs in the rom?
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] ShaDisNX255:
When are you going to buy a new phone? :|
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Edissonm:
It is not your problem if I buy a new cell phone or not and if you are very worried if he bought me a new phone, give me the nosy money
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] ShaDisNX255:
It is not your problem if dev fixes the bugs or not and if you are very worried if dev didn't fix bugs then build it yourself :)
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Brasil150:
Could someone answer me if this rom has the MHL functional? I read in some very vague places that the J2 Prime has MHL support and I intend to buy an adapter but I'm not so sure if it will work with this rom.🤗✌
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Edissonm:
: If you don't correct the errors in the rom, it's your problem. I don't care if you make a rom or not. 2: What you asked was a simple question about when you were going to correct the errors and if you correct it or not, I don't care. if you correct it, 3: and by the way you respond you are mediocre since you leave things unfinished
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] ryan258:
It’s really not his problem if he “corrects the error” the devs aren’t doing this because they get paid for it and you are getting it for FREE. They can take how ever long they want its their choice, pretty surprised that this ancient phone even has someone who is willing to work on it and If it bothers you so much then go and do it yourself???.

Its honestly mind boggling how entitled you feel to comment something as asinine and ignorant as this.
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] 6xatz:
Is this a bug or is it like this?

enough, daily driver-able for me (but the battery life was uhhh).

my usage :

.
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] ChristianRocks:
thanks :)

is there any chance that the gps can work in an update future?
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] lagg999ms:
google cam not working and ram full 100% . i root and using swapper to reply to using chrome + swapper . battery remove and reboot is self-fall. auto rotate glitch .touch lag and glitch . microphone and headphone not work
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Ah9m7ed:
I hope that the dev finds time to fix the bugs, it is really a good rom.
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Kingokicrite:
Please devs we need you to fix the errors because this rom will be the best ever if it's without errors please🙏
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Jonathan Ramirz:
Hola muy buenas tardes, con todo el respeto que te mereces hiciste un trabajo extraordinario es muy libiana la rom no pesa un coño. muy buena rom de verdad mis respetos programador. me gustaria que siguieras dando le soporte al trabajo seria genial si esta en tu tiempo. todo a tu ritmo tranquilo. estoy muy agradecido con el trabajo de verda.
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Mightx:
How's development going for LOS on the J2P?
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Mhossein_12:
Hello, I had a question, what are the other two files besides the ROM and how should it be flashed and my touch is stuck for a few seconds, can I fix this problem??
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Mhossein12:
This is my problem too
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] MeditatedBison:
sorry i by mistake commented, i wanted to comment on exynos 3475 j2 lineageos
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] oldesc:
galaxy j2 prime sm-g532m the rom won't flash
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] dung1412:
i need Official version now, thank you very much
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] RodrigoAyuso:
Thank you for providing this rom, I couldn't stand Android marshmallow anymore. (For people asking for an Android 8+ version, please be aware that it's already being difficult to do for Nougat, so avoid asking to compile more current versions of Android or fix already reported bugs)
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Prove N.:
anddddd going here to say the project is slow but isn't off the table.

new OTA update for 14.1. Please check the changelog at the first page.

edit 1: can someone please test audio playback over 3.5" headphone?

a bit of progress elsewhere too:
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Noope21:
I'm Glad you're back, for the audio jack now it's no sound but still playing on the speaker phone.

I was updated and try to reset and when I check update, it's show again. It's OK?

Sorry I can't attach image, I don't know why motif show "no app can handle this link" and i'm not install gapps.
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Prove N.:
the update bug is fixed now, thanks for the reportings~
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Noope21:
I hope u fixed audio jack sound soon, because we need it. And thanks for make an amazing ROM.
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Lendigo4:
Seriously bro, you're an OG for sure. No doubt about that!
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Lendigo4:
I tested the headphone jack but the problem still exists. Battery life in my opinion got a littleee bit better so did the performance as well. One thing I also noticed was that the mobile data didn't seem to work for me idk why. In the previous version of this ROM, it worked but in this latest update, it didn't. Maybe there was a problem while I flashed this ROM idk but I'll try again to see if the problem still exists by reflashing it. Thanks btw for this amazing ROM!😊

My Phone Varient: Samsung Galaxy J2 Prime SM-G532M
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Prove N.:
I'm connecting my laptop to 4G on J2p right now though, so please consider a few things first:

Does mobile data work on any stock (or stock-based) ROM?

Is it a problem with your SIM card provider (1-way block, no data plan, etc...)?

If you have 2 SIM cards, check if the other one (that you don't use mobile data on) is set to 2G-only, and the SIM you use for data is selected as default. The settings is in Settings app -> SIM cards.