[ROM][LineageOS 16.0][Android 9 for SM-T235, SM-T235Y][degaslte]

[html6405]

/*
* 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.
*
*/

Hi,

here you can find my LineageOS 16.0 for the Samsung Galaxy Tab 4 7.0.

This ROM fits only for the SM-T235 and SM-T235Y, not for the SM-T230 and SM-T231 (different chipset).

At first I want to thank @spookcity138 for your work on the kminilte,
I've reused some things here from you.
For sure thanks to everyone else who ever worked on the Exynos3470.

Here you can see what's working / not working so far:

Spoiler: Whats working

• Audio
• Bluetooth
• Boot
• Cameras
• Graphics
• GPS, not sure if completely
• Mobile data
• OTA Updates
• RIL
• Sensor
• Tethering via USB, WIFI and Bluetooth
• USB
• Video playback (HW/SW)
• Wifi

Spoiler: Whats not working

• Hardware overlay's, disabled by default

Spoiler: Links

TWRP

T235 / T235Y ROM

If you are going to use Gapps,
I recommend to use the pico package!
https://opengapps.org/
For the others, you can use microG if you want, I've enabled signature spoofing.


Do you like my work?
Than you can simply hit the thanks button and consider to spend me a coffee or a beer,
I'm doing this in my free time and it also costs a lot of money to buy hardware.
donate

Spoiler: Changelog

19.05.2021
20.05.2021
21.05.2021
24.07.2021
16.09.2021
17.09.2021
16.12.2021
10.01.2022

Spoiler: How to improve GPS

You could use a gps.conf from https://app.box.com/s/w57s1v1n3hie7l5lk28i for your location and replace /system/etc/gps.conf.
Or you try GPS Server Optimizer app for a faster 3D fix.
For both methods you need root rights.

Spoiler: How to install it?

Instructions

XDA:DevDB Information
[ROM][9.x][T235/T235Y][STABLE] LineageOS 16.0, ROM for the Samsung Galaxy Tab 4 7.0

Contributors
html6405
Source Code: https://github.com/html6405

ROM OS Version: 9.x Pie
ROM Kernel: Linux 3.x
ROM Firmware Required: TWRP 3.3.0
Based On: LineageOS

Version Information
Status: Stable
Release Date: 2021-05-18

Created 2021-05-18
Last Updated 2022-01-10

 

[html6405]

*Reserved,

First builds are up.

 

[prkfsz]

I knew you would make it!

Will gladly try your ROM but i will have to wait untill the weekend..

 

[html6405]

Will gladly try your ROM but i will have to wait untill the weekend..

I'm testing it since yesterday and I have to say I'm really satisfied,
as soon as I have fixed the camera's, mobile data and the acceleration sensor, this ROM should be great.

 

[prkfsz]

I'm testing it since yesterday and I have to say I'm really satisfied,
as soon as I have fixed the camera's, mobile data and the acceleration sensor, this ROM should be great.

Sounds good! Looking forward to try it out. And I hope there will be enough people left with these devices to be able to use your build.

Btw, did you have any use of the old marshmallow for it? Played a bit with it yesterday and it seems realy stable! The only thing that puts me off there is the small font.. There are of course ways to increase the size with some apps, but they are usually limited...
So, i hope there are usual ways to make the font bigger in your build for us elderly..

 

[html6405]

Btw, did you have any use of the old marshmallow for it?

Nope ,
never tried this, you can set the font size as it should be in LOS, just try it if it's big enough .

 

[html6405]

Update 19.05.2021:

• Programmed new open source HAL for the acceleration sensor, screen rotation is working now.

 

[html6405]

Update 20.05.2021:

• Fixed TWRP blank screen bug
• Created thread for TWRP 3.5.2
• Included swap memory
• Fixed OTA function
• Fixed camers's
• Fixed mobile data

 

[prkfsz]

wow, it sounds you're pretty much done with it and got most, if not all of the things working?
Now i am really looking forward to the weekend to give it a go!
Just hope more and many people will find this..

 

[html6405]

wow, it sounds you're pretty much done with it and got most, if not all of the things working?

Yes all my issues after the first boot are resolved, now I have to test further and I will today,
maybe there will be an OTA update or not, we will see .

Just hope more and many people will find this..

I hope too, this device makes fun so far, small, but not too small, you can easily put it in your pocket .

 

[html6405]

Update 21.05.2021:

• Fixed Bluetooth audio
• Fixed Bluetooth voice call audio
• Included an open source audio HAL and configured it for these devices, in future we won't need the old audio blob.
• Temporarily disabled hw overlay's.

Update is via OTA available.

 

[html6405]

wow, it sounds you're pretty much done with it and got most, if not all of the things working?

Another day of work, it would have been too beautiful, if everything would be working .

 

[matteo0026]

Hi, where are the sources? In your github page, there aren't. I'm just curious to see what you have done, and in that way, I could fix something more in the other Tab 4 models that I maintain.

 

[html6405]

Hi, where are the sources? In your github page, there aren't. I'm just curious to see what you have done, and in that way, I could fix something more in the other Tab 4 models that I maintain.

Just be patient, I will sync everything soon, I'm working simultaneously on more than 10 devices,
you will get them.

 

[matteo0026]

Just be patient, I will sync everything soon, I'm working simultaneously on more than 10 devices,
you will get them.

Okay, thanks. When you'll push them, do with all the history too, please.

 

[prkfsz]

Update 21.05.2021:

• Fixed Bluetooth audio
• Fixed Bluetooth voice call audio
• Included an open source audio HAL and configured it for these devices, in future we won't need the old audio blob.
• Temporarily disabled hw overlay's.

Update is via OTA available.

Managed install it finally! Have to give a tip to people that are going to do that - the latest TWRP can not mount the whole /data and format it if you have encryption. In that case you have to downgrade to the old 3.0.X TWRP first, and then go back to the latest TWRP to flash LOS16. Took me a while to find the solution for this

Writing this review on the t235, connected to a bt keyboard after the last OTA update..

Really good job! Everything seems to be working. And i can get bigger fonts! After the last update even bt works, which was important for me. The only bigger thing i haven't tested is mobile data.

And it's not that it's huge, but i am experiencing some microlags. Perhaps not surprising considering it's age and that it wasn't really a flagship device already when it was released..

Thank you for this! I will of course keep on testing for a while. And, just curious - will there be /e/?

 

[html6405]

Managed install it finally! Have to give a tip to people that are going to do that - the latest TWRP can not mount the whole /data and format it if you have encryption.

This is normal, but you should be able to wipe the whole data partition.

Perhaps not surprising considering it's age and that it wasn't really a flagship device already when it was released..

I'm actually surprised, that it run's as well as it's doing, it could be worse with this hardware .

And, just curious - will there be /e/?

If you're my only user, not , but everybody could use my sources and build /e/ out of it,
it actually should work out of the box.

 

[html6405]

Update 22.05.2021:

• Fixed menu button configuration in settings
• Made some RAM optimizations and tweaks
• Made an Android go config
• Removed unneeded button light and LED code, this device doesn't have any of them
• Created many selinux labels, so we could switch it to enforcing in the future

Via OTA.

 

[The4anoni]

Hi
Thanks for keeping our device alive
I've lost hope long time ago.

 

[Selicular]

Where can I download this? been trying to revive this device for the past few weeks and finally saw this today!!