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

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

Disclaimer:
Code:
Your warranty is now void. Me and all the contributors are 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 the features included in this ROM before flashing anything. YOU 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)
  • 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
  • Camera doesn't work on the Brazilian variant of the j2lte (J200BT) and the Galaxy J2 2017
  • Phone doesn't always connect to LTE (4G) networks. There is a workaround for this issue (see the post below)
  • Codecs don't seem to be working
  • 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 and charging problems
  5. (Optional) Flash GApps
  6. (Optional) Flash Magisk/SuperSU (Magisk recommended)

Downloads:

Source:

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

Contributors:
 

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Last edited:
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.


j2lte Telegram Group
 
Last edited:

SharkyBeAre

Senior Member
Sep 19, 2018
135
21
Bogotá
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
 
Last edited:
  • Like
Reactions: 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

Senior Member
Sep 19, 2018
135
21
Bogotá
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.
 
Last edited:

Jd_04

Senior Member
Feb 2, 2018
59
5
Maybe the booting time its not a problem even though it reach 10-20mins since some of rom booting just like that
 
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.
 

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  • 19
    500px-Lineage_OS_logo.svg.png


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

    Disclaimer:
    Code:
    Your warranty is now void. Me and all the contributors are 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 the features included in this ROM before flashing anything. YOU 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)
    • 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
    • Camera doesn't work on the Brazilian variant of the j2lte (J200BT) and the Galaxy J2 2017
    • Phone doesn't always connect to LTE (4G) networks. There is a workaround for this issue (see the post below)
    • Codecs don't seem to be working
    • 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 and charging problems
    5. (Optional) Flash GApps
    6. (Optional) Flash Magisk/SuperSU (Magisk recommended)

    Downloads:

    Source:

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

    Contributors:
    6
    New update available for download. Sorry for the delay, i had planned to release this update on February, but lots of things happened.
    My Galaxy J2 got a short circuit so i won't be able to actively work on this anymore.

    Changelog:
    • Switched to stock Audio HAL. Fixes audio stops working and some microphone issues
    • Some OMX fixes, which fixed camera video recording
    • Switched to stock power profile
    • Switched to stock sensors library
    • Removed DOZE (Ambient Display)
    5
    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.


    j2lte Telegram Group
    4
    New update available. The apps crash problem is now fixed and the Android Security Patch was updated to October 5, 2019.

    I wanted to release this update yesterday, but i wasn't able to do it because my Ubuntu installation almost broke when i was upgrading to the latest version. Luckily, i managed to restore it.
    4
    New update available. Changelog:
    • Added dual SIM support - Bengris32
    • Odexed ROM for faster boot times - TBM13
    • Use stock audio volume levels - TBM13
    • Now LOS can detect the device model (J200G/GU/M/F) - Bengris32
    • Fixed ro.hardware value being "unknown" - Bengris32
    • Use stock Dalvik and HWUI properties - TBM13
    • Changed LCD density from 280 to 270 - TBM13
    • (maybe) fixed random reboots