[BETA] [7.1.2] [j2lte] [UNOFFICIAL] Lineage OS 14.1 [Exynos 3475]

[TBM 13]

Unofficial Lineage OS 14.1 for the Galaxy J2 (2015) and Galaxy J2 (2017)​

Disclaimer:

Your warranty is now void. Me and the Exynos 3475 team are [B]NOT[/B] 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 the features included in this ROM before flashing anything. [B]YOU[/B] are choosing to make these modifications on your own.

This is an experimental build! Don't install it on your main phone if you don't like bugs!

Supported devices

• This should work on any Exynos 3475 based Samsung Galaxy J2, although it was only tested on the Galaxy J2 2015 (J200M, J200F, J200G, J200GU, J200BT, and J200Y) and the Galaxy J2 2017 (J200G).

Working

• Telephony (RIL, SIM, IMEI) (needs more testing)
• WiFi
• Cameras and torch/flashlight (doesn't work on the J200BT and the 2017 variant of the J200G)
• Vibration
• Audio
• Sensors (accelerometer and proximity sensor)
• Headphones
• Bluetooth
• Offline charging
• Internal Microphone
• SD Card
• GPS
• WiFi Hotspot
• USB Tethering
• OTG

Bugs

• Codecs don't seem to be working
• 4G (LTE) issues. Connecting to a LTE network requires some extra steps (see the post below).
• Camera doesn't work on the Brazilian variant of the j2lte (J200BT) and the Galaxy J2 2017
• Radio
• Some apps like the gallery sometimes don't display the SD Card content. File manager doesn't seem to be affected by this issue. Fixed on the provided boot.img
• The phone only charges up to ~70% Fixed on the provided boot.img
• VoLTE (won't be fixed)

Instructions:

1. Install TWRP
2. Wipe cache, dalvik, data and system
3. Install the ROM
4. Flash the boot.img with no SD Card problems
5. (Optional) Flash GApps
6. (Optional) Flash Magisk/SuperSU (Magisk recommended)

Downloads:

• ROM: Download
• Boot.img without SD Card and charge problems: Download
• Google Apps (GApps) (pico recommended): [url]https://opengapps.org/[/URL]

Source:

• Kernel: Exynos3475/android_kernel_samsung_exynos3475
• Device tree: Exynos3475/android_device_samsung_j2lte
• Vendor: Exynos3475/android_vendor_samsung

ROM Information:

• Android version: 7.1.2
• Android security patch level: December 5, 2019
• Build date: March 2, 2020

Contributors:

• @lzzy12 for working on the initial bringup, including the kernel, vendor, device and hardware trees. Thanks!
• TBM13 (me) for improving and making fixes to the device tree
• @bengris32 for improving and making fixes to the device tree, like the camera and dual SIM
• Comrade79 for helping me with some things, and for sharing some of his knowledge with me
• Harison for giving me a fix for the audio problems

XDA:DevDB Information
Lineage OS 14.1 for the j2lte, ROM for the Samsung Galaxy J2

Contributors
TBM 13, lzzy12, Bengris32, Comrade79, Harison
Source Code: https://github.com/Exynos3475

ROM OS Version: 7.x Nougat
ROM Kernel: Linux 3.10.x
Based On: CyanogenMod

Version Information
Status: Beta
Beta Release Date: 2020-03-05

Created 2019-10-15
Last Updated 2020-03-05

 

[TBM 13]

LTE (4G) fix
Most times, to connect to a 4G (LTE) network, you need to follow these steps: (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.

J2 (2015) Telegram Group

 

[SharkyBeAre]

I remind you that if you have the bug that some apps do not recognize the SD, follow the link for the fix that is in the first post of TBM

 

[Jd_04]

Great work brother and to your team :good:

 

[slbdeveloper]

Wow keep it up bro. Fix all bugs

 

[Jd_04]

So were in alpha

 

[byronhkate]

wow, nice... thanks

---------- Post added at 09:08 AM ---------- Previous post was at 09:06 AM ----------

Does anyone have the galaxy j2's telegram group link?

 

[TBM 13]

wow, nice... thanks

---------- Post added at 09:08 AM ---------- Previous post was at 09:06 AM ----------

Does anyone have the galaxy j2's telegram group link?

Here is the J2 Telegram Group.
https://t.me/j200x

 

[TBM 13]

RIL is now working (it requires more testing though). So far calls and SMS works fine. Mobile data also works, i wasn't able to connect to the LTE network of my provider though.

SMS app crashes when opening the keyboard on a chat.

Right now, i won't share this build because, for some reason, boot time increased a lot. I'm not sure at all why this is happening, but until it doesn't gets fixed, i won't publish it.

 

[SharkyBeAre]

RIL is now working (it requires more testing though). So far calls and SMS works fine. Mobile data also works, i wasn't able to connect to the LTE network of my provider though.

SMS app crashes when opening the keyboard on a chat.

Right now, i won't share this build because, for some reason, boot time increased a lot. I'm not sure at all why this is happening, but until it doesn't gets fixed, i won't publish it.

correcting the bug of the Minecraft arose the problem that the time of ignition increased considerably? I will wait for the new update to install it

Edit: And if for the bug of the message application you try to use the one of Google, the one in the GPlay, as a replacement? that one suggestion :good:

I'm sorry for my English, I use GTranslate.

 

[Jd_04]

Maybe the booting time its not a problem even though it reach 10-20mins since some of rom booting just like that

 

[Leroy99]

Finally got Lineage OS 14.1 for Galaxy J2lte

You're really working hard bro
Thank You for bringing AOSP rom for our device

 

[TBM 13]

Maybe the booting time its not a problem even though it reach 10-20mins since some of rom booting just like that

It's a problem because it's every boot, not the first one. Sometimes it feels like it won't boot, so i try to reboot the device until it does. Seems like reinserting the battery helps sometimes.

 

[SharkyBeAre]

What's new about today's update? :silly:

 

[slbdeveloper]

New Update link plz?

 

[TBM 13]

What's new about today's update? :silly:

Today's thread update?
Just added two contributors.

I'm still working on the boot problem.

 

[SharkyBeAre]

Today's thread update?
Just added two contributors.

I'm still working on the boot problem.

Oh, sorry.

 

[TBM 13]

New update coming today.

 

[SharkyBeAre]

New update coming today.

Could you get progress with the boot phone? :victory:

 

[TBM 13]

Could you get progress with the boot phone? :victory:

The boot problem? It only seems to happen on reboots, but after i accidentally odexed the ROM, the problem weirdly happens.