yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy J1 ROMs, Kernels, Recoveries, & Oth] xabu:
Camera is the big issue . . but reading this thread will show you that an upgrade can be expected ...
[Samsung Galaxy J1 ROMs, Kernels, Recoveries, & Oth] xabu:
@cıyanogen don't know if you followed the @Ivan_Meler development of his Rom Android 12 for the S7. Anyway after two years he fixed the Camera problems and explained the problem in his thread.

Samsung Camera and LineageOS must be very interesting for you and big news. :)
[Samsung Galaxy J1 ROMs, Kernels, Recoveries, & Oth] andresfx91:
Very fluid and fast, the only problem is the camera, but it has been working fine without it, thanks again for giving life to my j1 2016
[Samsung Galaxy J1 ROMs, Kernels, Recoveries, & Oth] BHD@RN:
sorry, bro but future updates will be delayed due to some uncontrollable events thats have caused heavy sadness and trauma to me, but now i think i might be comming over it and will update the soon about the status of development.
[Samsung Galaxy J1 ROMs, Kernels, Recoveries, & Oth] BHD@RN:
you made my day more joyful thanks for such heartwarming comments.
[Samsung Galaxy J1 ROMs, Kernels, Recoveries, & Oth] xabu:
Dearest @BHD@RN

Your mental and physical health comes first. We are grateful for all you can do and are aware of the very difficult job you have begun.

Stay safe and trust the patience of those who follow you in this thread.. 🌷🌷🌷
[Samsung Galaxy J1 ROMs, Kernels, Recoveries, & Oth] BHD@RN:
Thankyou for your support but i think i might have replied in wrong thread
[Samsung Galaxy J1 ROMs, Kernels, Recoveries, & Oth] Sabbbir:
Mobile data not working in j120f
[Samsung Galaxy J1 ROMs, Kernels, Recoveries, & Oth] ytBPG:
internet traffic does not work, data is active but there is no internet indicator
[Samsung Galaxy J1 ROMs, Kernels, Recoveries, & Oth] Sabbbir:
is there any fix for mobile data?
[Samsung Galaxy J1 ROMs, Kernels, Recoveries, & Oth] Joe19:
Your sim card is safe? I am try and my sim card is read but not connected internet can help me please, my phone galaxy j1 2016 (j120g)
[Samsung Galaxy J1 ROMs, Kernels, Recoveries, & Oth] Joe19:
Same too j120g😫😢 me phone
[Samsung Galaxy J1 ROMs, Kernels, Recoveries, & Oth] BHD@RN:
i think you have corrupted efs, firstly flash stock rom and see if it works, if not then backup efs and format the efs using twrp terminal shell, then boot if then also not work comment i will tell next
[Samsung Galaxy J1 ROMs, Kernels, Recoveries, & Oth] MerGr:
Found a workaround, type in *#*#4636#*#* on your phone dialer, go to Phone Information, and turn off and on "Mobile Radio Power" while having your Mobile Data ON, make sure you're not connected to any Wi-Fi networks too, and ping test till you get Unknown or Pass on the HTTPS Response.

This workaround has to be done every boot up, and you might need to set up a correct APN, it seems rebooting the network module fixed the issue, hopefully it'll be fixed next patchset.

Sent with a J1 SM-J120F with the workaround applied.
[Samsung Galaxy J1 ROMs, Kernels, Recoveries, & Oth] vip5912:
Thank you. It's working.
[Samsung Galaxy J1 ROMs, Kernels, Recoveries, & Oth] Joe07:
How to format the efs using twrp terminal shell? Thanks
[Samsung Galaxy J1 ROMs, Kernels, Recoveries, & Oth] BHD@RN:
https://xdaforums.com/t/how-to-fix-e-failed-to-mount-efs-invalid-argument.2858056/
[Samsung Galaxy J1 ROMs, Kernels, Recoveries, & Oth] Joe07:
i don't understand... plesae help me .
[Samsung Galaxy J1 ROMs, Kernels, Recoveries, & Oth] Dasun.C:
Hi Guys I'm a student. I'm in Sri Lanka. My device is J120g. I'm already using this new rom. Because my deafult OS is 5.1.1 Zoom and Teams also not supported in 5.1.1. In leneage OS 17.1 Camera is not working. Please fix this bug soon. Please...
[Samsung Galaxy J1 ROMs, Kernels, Recoveries, & Oth] MerGr:
Any updates on this ROM development, how can I contribute to it ?
[Samsung Galaxy J1 ROMs, Kernels, Recoveries, & Oth] shadowryflix2000:
I would like to install it, how can I do it?

I have a Samsung Galaxy J1 (SM-100H)

I state that I have never done such a thing, so I would like more detailed instructions, if possible
[Samsung Galaxy J1 ROMs, Kernels, Recoveries, & Oth] Sabbbir:
Is this rom support project trable?
[Samsung Galaxy J1 ROMs, Kernels, Recoveries, & Oth] Vidushan@123:
I don't know if this will fix the problem or not.but i flashed this zip file with the linage os 14.1 rom(i also have j120g phone)it worked. But before use it make sure to get a backup. https://drive.google.com/file/d/15MCsoRRed9r2GOjeHL5hTjSyN2CwKcwj/view

If this not worked install the linage os 14.1 for j120g.(I'm also from srilanka so this should work in your phone because rom for exnos 3475) it's android 7.1 all problems are fixed in this rom camera, flashlight,sound working. I use this rom as a daily driver.download it from this link 👇

Google Drive - Virus scan warning

drive.google.com
[Samsung Galaxy J1 ROMs, Kernels, Recoveries, & Oth] Vidushan@123:
I'm using j120g phone. I flashed this rom. camera and flashlight not working. Sometimes the sound dies(restart will fix it)
[Samsung Galaxy J1 ROMs, Kernels, Recoveries, & Oth] GabyMeli:
Hola!!!!

Lineage OS 17.1 para Samsung Galaxy j1 Ace modelo SM-J111M POR FAVOR.

Mi teléfono tiene Android 5.1.1 (Lollipop) ¿Puedo usarlo igual?

Nota: Perdón, no hablo inglés 😕
[Samsung Galaxy J1 ROMs, Kernels, Recoveries, & Oth] GabyMeli:
Lineage OS para Samsung Galaxy j1 Ace modelo SM-J111M POR FAVOR.

Perdón no hablo inglés 😕 Necesito actualizar mi teléfono urgente.
[Samsung Galaxy J1 ROMs, Kernels, Recoveries, & Oth] kianzo:
How to fix hotspot tethering not working?
[Samsung Galaxy J1 ROMs, Kernels, Recoveries, & Oth] GabyMeli:
Rápido contesten!!!!
[Samsung Galaxy J1 ROMs, Kernels, Recoveries, & Oth] xdaoldiskul:
hi my unit is samsung j1 2016 SM-j120H can i use this? if not can you please recomend OS that 4g is working . cant use my j1 outside because of signal always edge, sometimes not appear or no signal. please help

thanks
[Samsung Galaxy J1 ROMs, Kernels, Recoveries, & Oth] Ayman221:
Is there any similar rom for H120
[Samsung Galaxy A70 Themes, Apps, and Mods] Topo's:
Nice!
[XPERIA X8 Q&A, Help & Troubleshooting] PocketStationMan:
So here's the deal. I got an old X8 with Android 1.6 from ebay a few months back for the fun of it and I've been trying to install cyanogenmod or something similar on it so I could use it as a portable emulation device. Now I'll be honest, I'm a complete noob. (My greatest computing achievement is installing Puppy Linux on a laptop 5 years older than the X8.) I've scowered these here forums and other places on the web far and wide but still came out unsuccessful. I couldn't even figure out how to boot it in fastboot mode, which was the hurdle that killed it for me. I think so far I've only managed to root the thing, whatever comes after just keeps flying over my head. So here's what I would like to do.

-Install apps capable of decently emulating systems such as the PS1, GBA, GBC, N64, MD, 32X...

-Connect a gamepad through USB or BT (If even physically possible)

-Preserve the media playback abilities of the device as it came, as well as the ability to take photos

-Being able to browse the web and watch videos would be kinda cool too but I know it's a stretch...

I know that all the stuff I need is probably still out there somewhere but as I said I am a *complete and utter* noob with honestly little skill and patience.

So if anyone here is willing to help me with any guidance (or perhaps even a step-by-step guide, oh my!) on how to squeeze the best out of the wee thing with the best ROM, be it Cyanogenmod or anything else, or get it to work with a proper controller with the best apps and stuff, I will be very grateful. I'll offer you my French skills if you need them lol. Also sorry for writing a text brick...
[XPERIA X8 Q&A, Help & Troubleshooting] Deleted member 11650153:
Hello PocketStationMan. I WOULD LIKE TO TELL YOU THAT I HAVE A CYANOGENMOD ROM IN THE THREAD I HAD DONE A FEW DAYS AGO. DOWNLOAD IT FROM MY THREAD AND I HAVE A LOT OF INFORMATION FOR YOU. IF YOU HAVE ANY QUESTION DO NOT HESITATE TO CONTACT ME FROM THE FORUM DOING A NEW CONVERSTATION!!! :)
[XPERIA X8 Q&A, Help & Troubleshooting] PocketStationMan:
Can it be done on Windows XP?
[XPERIA X8 Q&A, Help & Troubleshooting] Deleted member 11650153:
YES!!! BUT YOU MUST HAVE FLASHTOOL!!!
[XPERIA X8 Q&A, Help & Troubleshooting] PocketStationMan:
Alright. Where should I get it from? Sorry if I sound like a moron but I really want to make sure I get proper guidance so I don't brick this little beauty.
[Samsung Galaxy S21 Ultra] Luke0858582:
I've had my S21 for a few months now, but a couple months ago my mic started acting up. It only ever works during phone calls. If I try to record a video on any app such as the camera, snapchat, and Instagram, all you hear is a rally quiet static noise. The same thing happens if you try to just record a voice memo or use text to speech. I've tried using Bluetooth headphones, but it still does the same thing. Like I stated at the beginning, it only ever works during phone calls, which is really weird. I've tried putting it in safe mode and doing a factory reset, but that didn't fix it. This is so strange.
[Samsung Galaxy S21 Ultra] mattlcfc:
If it still refuses to work with Bluetooth headphones I presume it must be software send it back to service under your warranty
[Samsung Galaxy S21 Ultra] Luke0858582:
I was trying to avoid that since I need it for work, but if that's the option then I guess I will. Thanks
[Samsung Galaxy S21 Ultra] babyboy3265:
*#0283#	Check Audio loopback control

Check it out...
[Touch CDMA Windows Mobile ROM Development] Abdullah85:
:)

Hi to you all

I have Sprint Touch 9600 and I wanna use it with Metro PCS

Metro PCS is the cheapest CDMA provider but they want you to stick with their ugly phones so I am asking if I could use this phone with it.

thanks
[Touch CDMA Windows Mobile ROM Development] Avgas:
Technically yes, however I have heard from a metroPCS employee that they are not activating any PDA or smartphones at the moment, hope that helps
[OnePlus 9 Pro] hallo dare:
Hi all,

As per title, can anyone recommend a good quality usb a to type c adapter so that I can do data transfer between laptop and 9 pro? , as there's no tyoe c port on the laptop. Thanks
[OnePlus 9 Pro] aNGERY:
i've had good luck with Choetech from Amazon
[OnePlus 9 Pro] Pain-N-Panic:
Yeah I picked up some cheap ones on Amazon that do the trick just fine. I don't remember, but does OnePlus provide a USB to usb-c dongle in the box like Google does for their pixel phones?
[OnePlus 9 Pro] Samuel Holland:
The one from the 8 pro is what I use and thankfully working since a couple others I tried didn't work.
[OnePlus 9 Pro] null0seven:
Use OnePlus cable Usb A to Usb C.

I have usb type C on my laptop, but is for charging...
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] cıyanogen:
LineageOS 17.1 for Samsung Galaxy J2 (Exynos 3475)

/*
* Your warranty is now void.
*
* I am not responsible for bricked devices, dead SD cards,
* thermonuclear war, or you getting fired because the alarm app failed. Please
* do some research if you have any concerns about features included in this ROM
* before flashing it! YOU are choosing to make these modifications, and if
* you point the finger at me for messing up your device, I will laugh at you.
*/

This is an unofficial LineageOS 17.1 build for Samsung Galaxy J2. It is just a experimental release, so you can get any issues.

This rom is discontinued for a long time, i don't remove the rom for some crazy who is fine with these bugs. I don't recommend this rom for daily driver, use 14.1 or TW roms instead.

20th July 2021

- * System sounds fixed

* Charging fix included

18th July 2021

- Initial release

* Camera

* Wi-Fi Hotspot

* FM Radio

* Mobile Data (Has a workaround in patchset)

* LiveDisplay

* Audio issues (Sometimes audio stops working) (Fixed in patchset)

* Do not reboot the phone, use turn off/turn on instead.

* VoLTE (won't be fixed)

...

Maybe another bugs can available in this ROM. You don't need to report it because the rom will be rebased so it won't help for fixing bugs etc.

Working Features:

* Wi-Fi

* Bluetooth

* RIL

* Sound (Notifications, Audio etc.)

* Audio/Video Playback (needs more testing)

* Vibration

* MTP

* Microphone

* Accelometer/Proximity Sensor

* GPS

and unlisted another features.

@lzzy12

@TBM 13

@bengris32

@imranpopz

@cıyanogen

@deadman96385

@FieryFlames

Thanks to everyone who has contributions on Exynos3475 Nougat.

(If i forgot any person, please pm me, i'll add you to this list)

@ananjaser1211

@Stricted

@danwood76

And all of the 5433/7580 AOSP developers/contributors.

You must add this contributor list if you want to building another roms using my source, forking and improving this sources etc.

Also thanks to @EyüpBa and @SharkyBeAre for testing.

Boot into Twrp.

Wipe -> Advanced Wipe -> Data / Cache / Dalvik& Art Cache / System

Install -> Find the rom package and select it.

Screenshots

ONLY FOR J2 (2015) EXYNOS 3475 VARIANTS. TESTED ONLY ON SM-J200F VARIANT. DO NOT FLASH SPREADTRUM VARIANT OR OTHER DEVICES, YOUR DEVICE WILL BE BRICKED.

Rom:

https://drive.google.com/file/d/12kaVq-5GWSccToD7ATSuBdFane3yJ2kA/view?usp=sharing

Patchset:

https://xdaforums.com/t/rom-10-0-0_...g-galaxy-j2-exynos-3475.4307603/post-86224577

Recommendened GApps Package (Optional)

BiTGApps

You can flash MagiskSU (for passing SafetyNet) if you want to.

https://github.com/Exynos3475/local_manifest

https://github.com/wecouldcalliteven/android

* Android Lowram Mode enabled.

* If you are going to use GApps, disable Google Play Protect.

* Disable E-Mail app if you aren't going to use it.

* First boot can be laggy, let the device cool down. It should be fine.

* You can set animations to 0.5x on Developer Options.

* Do not flash kernels, modifications, fixes which are made for older versions.​
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] NitishMh:
Can you make android go based custom rom for galaxy j200g?
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] cıyanogen:
A small update available - 20210720 Build

* System sounds issues fixed

* Added charging fix made by @imranpopz​
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] yaman74:
dear cıyanogen​

First of all, thank you very much for your efforts for j2lte. I'm going to install this rom but I have a few questions. Is this rom suitable for daily use and will you do development? Thanks in advance for your hard work. Best regards​

note: my phone is j200f
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] cıyanogen:
I don't think it's suitable for daily driver for now, also this is an experimental build. Try it your own risk.
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] NitishMh:
Please try to mek android go based rom because I am not heavy user and gamer. I am just a normal user. Didn't like customisation and bla bla.
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] cıyanogen:
Already answered on J2 telegram group -> https://t.me/j200x/79240
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] lucky2712:
:ROFLMAO::ROFLMAO::LOL::LOL:
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Omer5556:
The rom is very good full feeling of android 10 and very amazing features.I tried it on my j200g but I have the sound problem and the gesture in setting not working and none camera is working can you please fix those bugs. Please help me and also the flashlight. Thank you.
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] lucky2712:
because it is currentry experimental rom
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Omer5556:
I had reflashed it but the bugs aren't fix I will discribe you every bug which is in your rom please give me some time anyway your rom experience is very smooth. Thanks for replying me.
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Omer5556:
1) Camera Bug:

First when I saw that there was no camera app in the apps so I go to the setting>apps>camera then I saw that there is camera setting but when I open the camera from there the screen goes black and the setting stops then I download open camera from play store to test it but it shows failed to open camera camera may be used by another application ID:0View attachment 5375247

2) Sound Bug:

When I download YouTube and play video there was no sound then I go to gallery and play the video there was also no sound so I searched on YouTube they said that download solid file explorer and then go to root and then system and then vendor and then etc then open mixer_paths_0.xml I opened it with quickedit and they change some settings line they search speaker and then there was no highlighted statement so I just saw from there and paste it after that I found that the sound was working but after 3 hours the sound gone this is the screen shot that what I paste in it:View attachment 5375251

3) Flashlight bug:

When I tap on flashlight icon it was greyed out and didn't turn on by any other app this is the screen shot:

View attachment 5375255

4) Live display bug:

When I open the setting > display it shows live display for only 0.01 second and when I immediately tap on live display the screen goes black and the the setting stops this is the video:

View attachment 5375259

5) gesture bug:

When I open setting>system>gestures when I tap on gestures the screen goes black and the the setting stops.

These are the bugs that I found in your rom please fix those bugs I will wait for new update anyway very nice rom.
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Omer5556:
And also no app support split screen.
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Omer5556:
And google assistant said that google assistant isn't available on this device

When I was using lineage is 14 there was google assistant and it was working perfectly but after flashing this custom ROM the google assistant causes problem so please fix it. Thank you
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] cıyanogen:
Noted, thanks
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Omer5556:
Can you please fix all the bugs
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] cıyanogen:
Maybe one day
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Omer5556:
How I get the next update of this rom because it says can't check for update
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] deniz.yazar.86:
Camera fix please
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Omer5556:
Assalamoalaikum ciyanogen please reply when the update release?
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] NMTdontknow:
slowly bro, they tried so hard
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Omer5556:
Ok sorry bro I know it's very difficult and hard work and also sorry for any talk that you dislike.
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Omer5556:
Can you please add device care application in this rom so I can get better battery life.
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Omer5556:
Any update. Bro
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Omer5556:
Please release an update
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Oyebittu:
How to fix sound? I have no sound in my j200g

Edit - sounds are working fine after the factory reset 🙂
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Oyebittu:
Please fix all major bugs ASAP 🙏🙂
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Oyebittu:
Will there be any update coming for this rom?

Performance is great but major bugs are drawback.
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] cıyanogen:
Due to something, I won't give any update in near future, thanks for your understanding
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Omer5556:
Does mobile data work.
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Omer5556:
Please reply
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] cıyanogen:
I'm sure you're able to read bug list

By the way your answer is 'no', still i couldn't figure out it yet.
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Omer5556:
Can you please fix the flashlight and camera bug for this rom I really want to use it. Thanks. Please reply soon.
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Anailson99:
Vem apresentando problemas no início NÃO É POSSÍVEL CONECTAR TENTE OUTRA REDE WIFI OU DADOS MÓVEIS mas não funciona

Translated by GT: Has been having problems at first CANNOT CONNECT TRY ANOTHER WIFI NETWORK OR MOBILE DATA but it doesn't work
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Sunhay:
If you can't release any updates for this specific ROM, can you please make Lineage OS 18.1 for this Samsung Galaxy J2 please😞
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Omer5556:
Yes can you please.
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Omer5556:
Does this rom work on Samsung galaxy j2 j200g? If yes then why any audio is not working? Can you please help me fixing this bug? The audio only work when I connect Bluetooth headphone to mobile and when using in speaker or normal or with handfree there is no audio. Please help me I request you😢
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] janialam:
samsung j00f custom roms Exynos 3475 Quad (28 nm) need plz heph
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] uriel772:
It is perfect but please fix the bugs🙏, it worked for me in a j200m, Thank you very much from the heart for the rom ♥
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] ProGamerYT:
Hey Bro Your ROM Is Awesome I Liked This For Thank You So Much Bro But Bro one Problem On This ROM Volte Is Not Working Please help Me Any Solution This Problem please reply Fast Please Please!
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] Omer5556:
The sim doesn't work in this rom
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] techdisc90:
any update is coming or not
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] froesrepag:
using j200bt (brazilian dual sim dtv version)

i couldn't get mobile data to work, i'm open for help if anybody can

i cant even believe how smooth this runs. like, what????? android 10, entry level phone from 6 years ago, i'm still blown away by how well this phone is performing. flashed nikgapps basic and smooth experience so far (apart from known bugs and no camera//flashlight acess, a common problem on j2lte roms).

thanks so much for the whole j2lte dev community, i dont know how you pulled off this miracle but this Los port is surprisingly good
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] cıyanogen:
I had a workaround for mobile data in somewhere. It does not work well as it should be, but at least it works.

Recently my computer was broken so i am unable to continue it. I will try to access to its hard drive in few days, if i can access the drive and/or find that workaround i'll post here.
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] froesrepag:
sure! i used a Los 14.1 rom posted by TBM13 before which also had mobile data problems, your workaround worked flawlessly:

https://xdaforums.com/t/beta-7-1-2-...age-os-14-1-exynos-3475.3984307/post-80552089

Workaround to connect to LTE (4G) networks (thanks to @cıyanogen):

Enable mobile data, 3G and reboot. Carrier is now available.

Enable LTE and reboot. The device will boot with 3G, and LTE connection should be available in around 10 seconds.

If you reboot or turn off the device, the carrier is not available. Enable 3G in settings and reboot.
[Samsung Galaxy J2 ROMs, Kernels, Recoveries, & Oth] cıyanogen:
I found the workaround for 17.1, after the patch you only need to turn on / off airplane mode on every startup, nothing else. Also it should fix the weird audio hal issues.

And as always, do not reboot the phone, use turn off/turn on instead. This is a weird bug and it breaks audio/video decoding.

Patchset is here: https://drive.google.com/file/d/1jrO0khK-OfQ8yeT4o2mHBpDB4v-7qygL/view?usp=sharing