[5.1.1][BETA][UNOFFICIAL] Cyanogenmod 12.1 [latte] | Mi Pad 2

[tank0412]

#include <std_disclaimer.h>
/*
* 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.

Broken:

• Camera
• You tell me

Working:

• Wi-Fi
• Hardware Playback (YouTube, Twitch, etc)
• Audio
• Deep sleep
• Sensors
• Buttons (keylayout)

Installation Instructions:
- Download the ROM
- Put the downloaded zip file on your SDCard
- Reboot in Recovery
- Wipe System, Cache, Dalvik Cache, Internal and Data Partition
- Flash rom
- Reboot system

Compatibility:
Compatible with Xiaomi Mi Pad 2 (Intel Atom) tablet. 16 or 64GB. Using proprietary blobs based on Xiaomi MIUI 8.x stable rom.

Downloads:
ROM:
https://drive.google.com/file/d/0B-Fin8UxrD6PVnR2S0lUYUZVRjA/view


XDA:DevDB Information
CM12.1 for latte, ROM for the Xiaomi Mi Pad

Contributors
tank0412
Source Code: https://github.com/latte-dev

ROM OS Version: 5.1.x Lollipop
Based On: CM

Version Information
Status: Beta
Current Beta Version: 1.4
Beta Release Date: 2017-04-26

Created 2017-04-11
Last Updated 2017-04-26

 

[tank0412]

New CM12.1 build is released.
Changelog:
latte: Use MIUI Stable 8.2.2.0 build fingerprint
[REVERTNE] latte: enable virtual buttons
latte: swap to source built kernel with Lollipop selinux (selinux is enabled now)
latte: re-import blobs from Miui stable v8.2.2.0

Download:
https://drive.google.com/open?id=0B-Fin8UxrD6Pbnc2X0V2VzlxM2M

What works: Wi-Fi, BT, touchscreen
What does not work: audio, sensors, autobrightness

 

[Mortihead]

CM12.1? In 2017?
What reason to develop old CM build for MiPad2?

 

[udaan]

CM12.1? In 2017?
What reason to develop old CM build for MiPad2?

Because xiaomi will not release the source code for this device so developers cannot port newer android to it.

 

[AbhaYsinGH007]

Because xiaomi will not release the source code for this device so developers cannot port newer android to it.

Source code is already out , in which world you are living LOL?

 

[AbhaYsinGH007]

@tank0412 Join MiPad 1 development
there are much more People using MiPad1 than MiPad 2 They will respect your hardwork a lot
At least it has LOS14.1

 

[Skar3]

Thank you for your work, we need an alternative to MIUI, deep sleep work?

 

[tank0412]

CM12.1? In 2017?
What reason to develop old CM build for MiPad2?

During ROM developing for any device, we must fix all bugs first on a rom which have same android version as stock rom.
I mean stock rom has Android 5.1 so we must fix everything on CM12.1 first.
But is very hard. I still do not understand why CM12.1 has so many bugs.

 

[tank0412]

Because xiaomi will not release the source code for this device so developers cannot port newer android to it.

Theoretically we can port newer Android version (like Marshmallow) but before this we must fix everything on 5.1.1

 

[Skar3]

@tank0412 Join MiPad 1 development
there are much more People using MiPad1 than MiPad 2 They will respect your hardwork a lot
At least it has LOS14.1

What's the point of this comment? Thats a thread for the mi pad 2, i respect tank0412 and I hope I will be able to offer a viable alternative to miui for this magnificent device

 

[tank0412]

@tank0412 Join MiPad 1 development
there are much more People using MiPad1 than MiPad 2 They will respect your hardwork a lot
At least it has LOS14.1

I understand but i have never developed roms for Tegra chip.
I have experience of building for Intel and Snapdragon only

 

[tank0412]

Thank you for your work, we need an alternative to MIUI, deep sleep work?

There is a very strange situation with deep sleep.
It looks like it works on prebuilt kernel from MIUI but on this kernel everything like Wifi, bt and etc are dead.
But on kernel which i built from source wifi and BT is OK but deep sleep is dead.
It is a very strange. And i really puzzled due to it

 

[Palm Trees]

There is a very strange situation with deep sleep.
It looks like it works on prebuilt kernel from MIUI but on this kernel everything like Wifi, bt and etc are dead.
But on kernel which i built from source wifi and BT is OK but deep sleep is dead.
It is a very strange. And i really puzzled due to it

Try asking KonstaT about it.

 

[udaan]

Source code is already out , in which world you are living LOL

haha are you sure about that? Why dont you give that source code to @Harrynowl

---------- Post added at 01:41 PM ---------- Previous post was at 01:39 PM ----------

Theoretically we can port newer Android version (like Marshmallow) but before this we must fix everything on 5.1.1

It has already been ported
https://forum.xda-developers.com/mi-pad/development/unofficial-lineageos-13-0-xiaomi-mi-pad-t3565760

 

[tank0412]

haha are you sure about that? Why dont you give that source code to @Harrynowl

---------- Post added at 01:41 PM ---------- Previous post was at 01:39 PM ----------



It has already been ported
https://forum.xda-developers.com/mi-pad/development/unofficial-lineageos-13-0-xiaomi-mi-pad-t3565760

LOL.
I developed RR 5.7.4 Marshmallow for mipad 2 during 4 month.
https://forum.xda-developers.com/mi-pad/development/rom-resurrection-remix-mm-5-7-4-t3526898

But now we must fix lollipop first and only after this we can get a stable marshmallow.

 

[Mortihead]

During ROM developing for any device, we must fix all bugs first on a rom which have same android version as stock rom.
I mean stock rom has Android 5.1 so we must fix everything on CM12.1 first.
But is very hard. I still do not understand why CM12.1 has so many bugs.

I see, thank You!
5.1 is not bad. Now I'm on leaked AOSP build for mipad2, I'm happy for everything, but random reboots and drain battery occurs.
If stable CM 12.1 will appear - it will be fine, I'm flash it.

 

[udaan]

LOL.
I developed RR 5.7.4 Marshmallow for mipad 2 during 4 month.
https://forum.xda-developers.com/mi-pad/development/rom-resurrection-remix-mm-5-7-4-t3526898

But now we must fix lollipop first and only after this we can get a stable marshmallow.

I don't know. You cannot fix it because xiaomi has not released proper/full source code for the device. Without it, you are basically a handicap.

But new MIUI ROM (from xiaomi.eu) for mipad2 is working good, they have significantly improved the battery life in latest builds.

But thanks for contiributing and your interest in our device. Hopefully you will be able to achieve the fully working ROM.

Cheers!

 

[tank0412]

Well, guys, i am testing a new CM12.1 build.
One hour is passed and battery level is still same.
So i am not sure but it looks like that at least deep sleep is OK.

BTW, it looks i found a reason why sensors is dead.
Dmesg has this:

<11>[ 182.639903] init: cannot execve('/system/bin/msync'): No such file or directory
<11>[ 182.640453] init: Warning! Service otpserver needs a SELinux domain defined; please fix!
<11>[ 182.640785] init: cannot execve('/system/bin/coreu'): No such file or directory
<11>[ 182.641437] init: cannot execve('/system/bin/otpserver'): No such file or directory
<11>[ 182.643954] init: cannot execve('/system/bin/keymaster_meid'): No such file or directory
<11>[ 182.644351] init: cannot execve('/system/bin/sensorhubd'): No such file or directory
<11>[ 182.645104] init: cannot execve('/system/bin/hdcpd'): No such file or directory

THe problem is rom has all this files in /bin folder but init can not find it.

 

[joaocandeias]

@tank0412 Join MiPad 1 development
there are much more People using MiPad1 than MiPad 2 They will respect your hardwork a lot
At least it has LOS14.1

Hello? Mi Pad 2 also exists! And unfortunetly, it has a much smaller development team than Mi Pad 1 does :/

 

[pbg_87]

Maybe init is ignoring the binarys because of missing selinux? Are you booting with selinux enforced?

BTW: execve seems to be a permission problem.
<11>[ 182.641437] init: cannot execve('/system/bin/otpserver'): No such file or directory