Any Open Source Bootloader or Grub? - Xiaomi Redmi Note 4 Questions & Answers

Just wanted to know if there is any open source bootloader available for Redmi Note 4?
There are open source bootloader for a few Mi devices. For example : https://forum.xda-developers.com/redmi-1s/orig-development/source-bootloader-redmi-1s-t2918757
Mi itself open sourced their stock bootloader of the some of their devices. For example : https://github.com/MiCode/mi2_lk

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[Q] Open Source Development : Lenovo Tab 2 A7-10

Anyone to start android project on Lenovo Tab 2 A7-10?
Open Source code :

s7-701u and variants (Mediapad Youth) Kernel Source Code download

This is a good news
Huawei released the s7-701u (Media Pad Youth) kernel source code. This mean that developers can make custom roms
download here

Miui 9 for Xiaomi Devices

https://youtu.be/e4_WCXDFN0w
Miui 9 was released few days back. But currently it's not available for every device.
These are some chinese beta fastboot roms which is not available in mi forum right now.
Mi Mix : http://bigota.d.miui.com/7.8.14/lithium_images_7.8.14_20170814.0000.00_7.0_cn_759833759b.tgz
Mi Note 2 : http://bigota.d.miui.com/7.8.14/scorpio_images_7.8.14_20170814.0000.00_7.0_cn_791d87a16d.tgz
Mi 5 :
http://bigota.d.miui.com/7.8.14/gemini_images_7.8.14_20170814.0000.00_7.0_cn_2714479b5b.tgz
Mi 5s : http://bigota.d.miui.com/7.8.14/capricorn_images_7.8.14_20170814.0000.00_7.0_cn_672899c023.tgz
Mi 5s Plus : http://bigota.d.miui.com/7.8.14/natrium_images_7.8.14_20170814.0000.00_7.0_cn_cf412665e2.tgz
Mi5c : http://bigota.d.miui.com/7.8.14/meri_images_7.8.14_20170814.0000.00_7.1_cn_e119959eb9.tgz
Mi Max 2 : http://bigota.d.miui.com/7.8.14/oxygen_images_7.8.14_20170814.0000.00_7.1_cn_2f03a769f3.tgz
Mi Max 32GB : http://bigota.d.miui.com/7.8.14/hydrogen_images_7.8.14_20170814.0000.00_7.0_cn_0b715bfa35.tgz
Mi Max 64/128 GB : http://bigota.d.miui.com/7.8.14/helium_images_7.8.14_20170814.0000.00_7.0_cn_f33ec6357e.tgz
Mi 4s : http://bigota.d.miui.com/7.8.14/aqua_images_7.8.14_20170814.0000.00_7.0_cn_aa3cdf2711.tgz
Mi 4c : http://bigota.d.miui.com/7.8.14/libra_images_7.8.14_20170814.0000.00_7.0_cn_8a9bd446c0.tgz
Mi Note Pro : http://bigota.d.miui.com/7.8.14/leo_images_7.8.14_20170814.0000.00_7.0_cn_db93520fab.tgz
Redmi 4x : http://bigota.d.miui.com/7.8.14/santoni_images_7.8.14_20170814.0000.00_7.1_cn_e5d0079756.tgz
In order to flash fastboot roms you must have an unlocked bootloader.
MIUI 9 Global Developer 7.11.2 - was released .. http://en.miui.com/thread-979520-1-1.html
We will have to wait a little bit more to the official Global STABLE version..
For now they released only the Recovery file (this update is done in the updater app)... The fastboot file is off right now so if you're in MIUI 8 you have to wait. (or trying the Chinese fastboot files which I do not recommend for most people as it comes only in english/chinese and doesn't have Google Play Services (not sure if Uber will work)). Or you can flash the global fastboot which is version 7.10.19.
And I found the Xiaomi.eu Global Modded Rom (which is multilanguage)
It has some RAM improvements and other tweaks that the Global hasn't..
https://xiaomi.eu/community/threads/7-11-2.42127/

Kernel sources for Redmi y1/note 5A (ugg)

Looks like xiaomi released the kernel sources for ugg but according to the readme, branch name is ulysse
https://github.com/MiCode/Xiaomi_Kernel_OpenSource/commit/04a35026cdaf01110121a85abd2e2eeddf15921d
Can anyone confirm if this indeed is the source for ugg and not ulysse(couldn't find this codename even)
I can be your tester, and I can provide a build server too.

How to build a device tree for LOS/MOKEE from CAF-AOSP device tree

I am trying to port Andriod O to my Oneplus 5. I know there is an existing and well-worked LOS/MOKEE for Oneplus 5, but I am trying to do it myself entirely, using the existing one as an example for study. So I can port LOS/MOKEE to my Xiaomi 8 SE ( sirius, SDM710).
I get some information that if you are porting Andriod to a device having no existing LOS/MOKEE supported, you can start it with CAF AOSP. And this is what I am doing.
Now, what I can do is :
* knowing Oneplus 5's OOS-BETA12 is based on LA.UM.6.4.r1-06100-8x98.0 (CAF AOSP version)
* use repo to download a single project of LA.UM.6.4.r1-06100-8x98.0 (like project under device/ , hardware/ , vender/ )
How can I build a device tree for LOS/MOKEE from CAF-AOSP device tree?
Is there someone can help me? Thank you!
nobody.....?

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