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[ROM][AOSP][7.1/8.1 EXP][K3.4][Repartition] Unlegacy Android Project

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By Clamor, Senior Member on 18th February 2018, 08:30 PM
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The Unlegacy Android Project

TF201 | TF300T/TG/TL | TF700T

Introduction
Unlegacy Android started out as the OMAP4-AOSP Project. It was created in late 2015 in order to maintain a clean and organized place for pure AOSP support for various OMAP4 devices, such as the Galaxy Nexus and the Samsung Galaxy Tab 2 series. Over time this evolved to support more than just these devices, but still maintains its roots of supporting "legacy" devices that no longer receive "official" updates: hence Unlegacy Android was born. In our opinion, these ROMs are how the official updates would look.

On top of AOSP, we only include changes which are necessary to support the hardware, be secure, and get acceptable performance. Current features for the Asus Transformer Series include:
- Linux kernel 3.4.y (currently 3.4.113)
- BFQ IO scheduler (official kernel 3.4 release), set up so GUI processes have the highest priority
- F2FS support from kernel 4.9 (for /data and /cache)

Installation
You must have NvFlash backup. It is MANDATORY!

You need to use modified TWRP recovery that works with updated F2FS. If you're planning to install GApps, be sure to read the second post!

Problems
Non working/Known bugs:
- GPS; - need a device owner to configure!
- Camera (both);
- Dock special keys (top row);
- Modem on TG and TL;
- GUI crashes; - occure less often

Currently, no one from Unlegacy Team, has TF300T/TG/TL device. Help in developing or device donation would be highly appreciated.

Downloads
See: http://builds.unlegacy-android.org. Our automated builds ensure that we always have the latest Android security patches merged in, without having to manually start and upload builds Else is enclosed in downloads.

Features?
There isn't much to say here - this is AOSP, if you install GApps, you pretty much get the same thing that's running on the Nexus devices (see the second post). The aim of this project is to create a fast and stable ROM - although, one could use Xposed (or similar) to add extra features.

As usual, feedback is appreciated

Contacts
You may join Telegram development group, where all fresh staff is published and tests are made.

XDA:DevDB Information
Unlegacy Android Project, ROM for the Asus Transformer TF300T

Contributors
Clamor, Ziyan
Source Code: https://github.com/Unlegacy-Android

ROM OS Version: 7.x Nougat
ROM Kernel: Linux 3.4.x
ROM Firmware Required: Bootloader 4.2 JB
Based On: AOSP

Version Information
Status: Beta

Created 2018-02-18
Last Updated 2018-10-17
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18th February 2018, 08:30 PM |#2  
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Installation gide (for those who uses F2FS)
Before installing ROM you need to update your current recovery with this TWRP, else you will get a bootloop with next format from fastboot. Install zip from your current recovery and reboot into your current system. Than boot into new recovery and install ROM (with factory reset).

Currently 3.4 kernel isn't stable enough for daily use. You may use updated 3.1 _that16 kernel, it works fine with this ROM. To make wifi work with _that16 kernel just move nvram_nh615.txt from system/etc to data/misc/wifi and rename to nvram.txt

You may use KatKiss 7.1 if you want, but you must flash a _that16 kernel every time after flashing KatKiss ROM. Else you will get a bootloop with next format from fastboot.

If you want to go back to ordinary TWRP, you need to make a format from fastboot, flash TWRP and make formats from there as well.
18th February 2018, 08:30 PM |#3  
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REPARTITION and TREBLE
I worked on this for few last weeks to make it stable and simple enough to any user to install this update. As usual NvFlash is MANDATORY! TF300TG/TL users shouldn't use this as it can harm your tablet.

So, UA_Bootloader.zip includes latest JB4.2 10.6.1.27.5 bootloader, modified TWRP [email protected] from Downloads section and my new partition table. It's main benefits are /system partition increased to 1GB and /vendor partition. This means that we may install bigger gapps packages and support of TF's may be extended plus having /vendor partition gives us at least hardware support for Project Treble, even if there is no 8.1 builds currently.

Before installation copy everything from tablet on PC, else all you data will be lost! To install this update just install it via TWPR and when flashing is finished press reboot into system. Than wait till blue line gets to the end and tablet reboots. Tablet will than stuck into ASUS screen with Device is Unlocked sign in top left corner. Than reboot manually into recovery and format /system to ext4; /cache to ext4 or f2fs; /data to ext4 or f2fs and you are good to go.

New partition table is compatible with all existing ROMs for TF's. If you flash ROM with system in .img file you need after flash into recovery do Wipe -> System -> Advanced Wipe -> Change or resize partition -> Resize filesystem. If you want to restore 4.2 state you can flash Stock or Bootloader 4.2 attached in Downloads section.
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25th February 2018, 12:36 PM |#4  
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How is this project going? and why you choose android 7.1? instead of the new android 8.0? because i would definitely want to help with a android 8.0/8.1 rom
26th February 2018, 01:23 PM |#5  
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Quote:
Originally Posted by androidjel

How is this project going? and why you choose android 7.1? instead of the new android 8.0? because i would definitely want to help with a android 8.0/8.1 rom

8.1 is my next step, it'll be easy to reach. But to have good experience with 8.1 we need a stable fully functional 7.1 build.
27th February 2018, 11:56 AM |#6  
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Quote:
Originally Posted by Clamor

8.1 is my next step, it'll be easy to reach. But to have good experience with 8.1 we need a stable fully functional 7.1 build.

Ah okay thats clear, a other question i want to try this rom but there are no downloads.

I want to test for you if you want?
27th February 2018, 12:00 PM |#7  
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Quote:
Originally Posted by androidjel

Ah okay thats clear, a other question i want to try this rom but there are no downloads.

I want to test for you if you want?

All needed files you can find in Downloads tab on top of this thread
27th February 2018, 12:16 PM |#8  
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Quote:
Originally Posted by Clamor

8.1 is my next step, it'll be easy to reach. But to have good experience with 8.1 we need a stable fully functional 7.1 build.

Quote:
Originally Posted by Clamor

All needed files you can find in Downloads tab on top of this thread

I see tnx, what do you want to know or what do you want to have tested to help you?

and Btw which TWRP is that? i have the last one already installed.
27th February 2018, 01:11 PM |#9  
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Quote:
Originally Posted by androidjel

I see tnx, what do you want to know or what do you want to have tested to help you?

and Btw which TWRP is that? i have the last one already installed.

Nothing, you may install Rom to see current project progress (If you have TF300T there will be no sound). For further developement test device is needed, or a developer with TF300T(better solution). Mostly all major functions are fixed, see buglist, and 3.4 works on all transformers on Tegra 3.

That is KANG TWRP with support of updated F2FS
21st April 2018, 09:30 PM |#10  
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TF300T users, if you are interested in further developement, please help me with debuging sound driver. I need a tester, with TF300T and some free time.
23rd April 2018, 05:08 PM |#11  
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Quote:
Originally Posted by Clamor

TF300T users, if you are interested in further developement, please help me with debuging sound driver. I need a tester, with TF300T and some free time.

I am more than willing to be a tester if you want. Heck, I will even find a cheap TF300T to load only this on. My mornings are relatively free as my business doesn't pick up till noon or so. Just PM me specifics of what you need. Any more development for our tablets is a blessing as far as I am concerned
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