Note: This kernel will work on stock firmware2.20.40.184, 2.20.40.183, 2.20.40.178, 2.20.174, 2.20.40.168, 2.20.40.165, 2.20.40.164 and may be lower, also working on some stock-based ROMs(EchoeROM V3,for example).
Disclaimer: I am not responsible for your broken phone , broken memory card, etc. All my kernels I test first on my own phones , and then upload here
If you like my works please do not forget donate to me(PayPal account you may find in my profile)
Bootloader unlock is required for every custom rom, custom kernel, custom recovery. Unlock Tool here:http://xdaforums.com/zenfone2/general/tool-one-click-bootloader-unlock-root-t3155884
Changelog:
03.06.2016
Full NTFS support for SD card
NTFS OTG full support by sibling Asus File Manager(read/write), from others file managers you can to see OTG NTFS devices, may see OTG NTFS devices from file chooser but you can't edit data. But you can edit platform.xml via NextAPP SDfix and can write on NTFS OTG devices
14.05.2016
Migration to newest source code from Zenfone Zoom ZX551ML from 20 april 2016
Ramdisk from 183 firmware
Some optimization in code
17.04.2016
Full support exFAT SDcard format, now you may write/delete/rename by standart method of Android 5
16.04.2016
Great game performance
Remove Hotplug driver
Remove -Ofast optimization(loud words-not take effects, placebo)
Remove optimization flag -march=silvermont(loud words, did not work on 3.10 kernels)
Remove touchboost from Interactive governor
Modified Interactive, Interactive Pro, Intel, Cyan governors: CPU2 and CPU3 turn off when screen off
Idle from Linux kernel 4.6
Gpu governor simple_ondemand from Linux kernel 4.6
Based on source code from Zenfone Zoom ZX551 from march 17
zram and kernel compression is LZ4
04.03.2016
Rework MSM Hotplug, now only CPU0+CPU1 online, no dancing CPUs.
For humor and proof that overclock in others kernels is fake added "overclock" to 5GHz
28.02.2016
Re-work MSM Hotplug. Now if load more than 79 but lower than 99- only another 1 core go to online(CPU2
or CPU3)) and processor working on 3 cores online, if load more than 99- CPU3 and CPU2 go to online together and processor working on all 4 cores online
DO NOT set fast lane 99 and higher!!!
Made 12 thermal states for video adapter a place of 3. If on 457 MHz have overheating- freq go to 400 MHz, if overheating on 400- go to 355, if hot on 355-go to 320 MHz and so on. In stock kernel if overheating on 457 MHz- processor goes in 200 MHz and was lags in games
25.02.2016
Compile with new march=silvermont optimizationmarch=silvermont(thanks to
@Dan_Jacques )
Tuning MSM hotplug for Zenfone 2: now interface faster, smoother even when min cpus online = 2. And maybe drain battery less.
Unlocked almost all hidden GPU frequencies. Now available gpu frequencies 106, 133,160,177 MHz(I think this NOT fake underclock). I made Kernel Auditor version for our GPU PowerVR 6430 (see screnshots here
http://i10.pixs.ru/storage/5/8/1/Bezimyanni_7545670_20843581.png )
https://drive.google.com/file/d/0BxVRXQGBg4DTaThjQUtoRFBrdms/view?usp=sharing
21.02.2016
Based on Asus Zenfone Zoom source code
Fixed hotplug driver and tuning(Now drain battery much less and fixed charging: now no overheating)
Added Cyan governor
Changed Interactive governor to Interactive from Asus Zenfone Zoom
18.02.2016
Now 2 different versions: for ZE551ML and for ZE550ML, Tuning MSM Hotplug(2 cores always online, Fast Lane up to 150), added Interactive Pro governor and set by default
04.02.2016
Interactive governor by default, realtime
Hotplugging now on any governors, on Interactive too(Extra CPU cores disabled without load) Idea and work
@mrg666 . You may to set parameters of hotplug driver via Kernel Auditor, point "CPU Hotplug"
Remove Hotplug governor(no longer needed)
Kernel Features:
1.Based on Zenfone Zoom ZX551ML source
2. Add zram support in LZ4 format(
no need to turn on it, if no problem with multitasking and never no need to turn on for devices with 4GB RAM), kernel compression LZ4 too
3. Adaptation InteractiveX V2 governor for quad core devices, I make that 2 cores go to offline, when screen off
4. Processor work in "1 cpu per module" mode a place of "2 cores per module"(4 independent cpus, not pair)
5. Ofast and march=silvermont(thanks
@Dan_Jacques optimization with GCC 4.9
6. Init.d support. You should install BusyBox in /xbin folder/
7. SELinux Permissive
8. KVM support (Kernel Virtual machine for Intel)
9. Added SWAP support
10. USB-HID mouse & keyboard functions(required USB Keyboard app from GP
https://play.google.com/store/apps/details?id=remote.hid.keyboard.client&hl=en)
11. Ultra kernel samepage merging(UKSM) a place of KSM. Disabled by default, if you want you may turn on it via Kernel auditor
12. Full auto brightness. I removed minimal level 15, now level 5
13. More governovs and I/O schedulers
14.Zram disabled
15. More TCP algorithms, Westwood by default
16. Unlocked GPU frequencies 106, 133, 160, 177 MHz
17. NTFS support for SD card and OTG
Deprecated features:
1.Hotplug governor by default. Extra CPU cores disabled without load(it have been removed sinse 04/02/2016)
2.
For correct work on ZE550ML you should change DPI to 320, for example via init.d script(root required).
1). Before flash kernel, you should install BusyBox in xbin folder, then create
init.d folder in
system/etc and set 755 permissions on it.
2) Download dpi320.zip, then extract dpi320 file and put it in
system/etc/init.d folder, check that on it set 755 permissions
https://yadi.sk/d/6hg6bDDioCNbT
3). You may flash kernel.
3. Interactive governor from Asus ZenPad S 8.0 by default with some tuning(for example, hi_speed freq = 1583 MHz) and hotplugging additions( 2 cores go to offline, when screen off) Idea and work by
@TheSSJ
4. Realtime hotplugging for all governors. You may to set parameters of hotplug driver via Kernel Auditor, point "CPU Hotplug"
5. Interactive governor from Asus Zenfone Zoom by default with some tuning(for example, hi_speed freq = 1750 MHz), InteractiveX and Interactive Pro have hispeed_freq 1750 MHz too.
Step 1:
You should download files for flashing:
ADB v1.0.32:
Download from Google Drive
IMG file with kernel:
03.02.2016
https://yadi.sk/d/FuJhWqc9oCLZy
04.02.2016
https://yadi.sk/d/PcDiDaumoJMb7
All versions from 18.02.2016 and higher will be here: https://drive.google.com/folderview?id=0BxVRXQGBg4DTSVV5Q19mSVUxQk0&usp=sharing
Step2:
You should reboot your phone in the droidboot mode. (turn off you gadget then press Turn off button and volume + button)
Then go to the ADB folder and hold Shift + Right Mouse button and write this command:
Code:
fastboot flash boot bootXX.XX.img
,where XX.XX- numbers after word "boot"
Step3:
Reboot to Android.
Method 2( via TWRP, without PC)
1. Download bootXX.XX.img
2. Go to recovery mode
3. Click Install, choose this bootXX.XX.img,
choose boot partition and flash
4. Then reboot
Method 3(via Terminal Emulator, without PC)(root required)
1. Download bootXX.XX.img and put it in root of internal memory
2. in command prompt write
Code:
su
dd if=/sdcard/bootXX.XX.img of=/dev/block/by-name/boot
reboot
And device started with custom boot.img
XDA:DevDB Information
Custom Lolipop Kernel for Asus Zenfone 2 ZE551ML/ZE550ML, Kernel for the Asus ZenFone 2
Contributors
BORETS24
Source Code: https://github.com/BORETS24/Kernel-for-Asus-Zenfone-2.git
Kernel Special Features:
Version Information
Status: Testing
Created 2016-02-02
Last Updated 2016-09-03
