- Title: Proton KK AOSP
- Listed: July, 2015
- Last modified: 10/22/2017 3:25 am
- Version: 1.0.2 (4.4.2)
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Member Info
DESCRIPTION
This is a custom KitKat rom for Lenovo A820 compiled from source.
It took me a lot of time to get it to this stage, so if you're porting to another device or do some mods, please have respect and give proper credits to original author.
Update 22.10.2017
Added patch for WPA2 vulnerability. Install from recovery, then wipe cache and dalvik. Reboot.
Key features:
- Proton Settings page with useful options:
—– Vibrate on call connected
—– Low battery sound
—– Low battery dialog
—– Volume keys control text cursor
—– Home key unlock
—– CM11 battery indicators
—– Button backlight control
- Fixed vulnerabilities
—– FakeID
—– ObjectInputStream Serialization
—– Settings PendingIntent
—– GraphicsBuffer Overflow
- Adjusted 3G signal indicators levels
- Improved battery life
- Battery tables from S150 exctracted with "reverse-engineering"
- Unlinked volume sliders and expandable volume dialog
- init.d script to control GPU frequency, voltage and DVFS
- kernel compiled with linaro 4.9.3 toolchain, ROM compiled with SaberMod 4.8
- UI mods for statusbar icons
- Extended power menu
- Working GPS/EPO/A-GPS
- init.d support
- Calculator, Apollo, DSP Manager, Browser from CM11 (compiled from source)
- Camera shoots in MP4 format. Increased photo quality to 100%.
- Fullscreen caller picture
And many more improvements…
ART is not working, so it is disabled. Could not solve this problem.
For full kernel changelog, visit my github repo: https://github.com/infraredbg/Lenovo_A820_kernel_kk
GPU overclock (works on some A820):
Currently it is only supported via init.d script
Go to /system/etc/init.d and open 00proton with a text editor
Uncomment and change desired value (all values are explained in the script)
Save and make sure the file has correct permissions
Reboot device
You can verify if the GPU frequency have changed in /proc/gpufreq/gpufreq_var_dump
Installation:
If you're currently using one of my DEV roms, it is recommended to do a clean install
It is recommended to use my TWRP 2.8.4.0 recovery (install via Rashr from PlayStore on phone or from FlashTools on PC)
Copy zip on sdcard and optional GApps package and reboot to recovery
Do a full backup of your current ROM including nvram block (IMPORTANT)
Wipe system, data and cache from TWRP. The script does not do automatic format.
Install ROM zip and GApps (optional)
Reboot system (first boot takes time)
Credits:
jwchen for helping me with kernel and testing
hyperion70 for the hint how to fix gralloc mem leak
masterwasome for guides on xda
varunchitre for some initial work on mt6589 kernel
faux123 for dynamic filesync
Christofer83 for prebuilt linaro toolchain
superdragonpt and Dr-Shadow for valuable code which I learned a lot from
mastersanta for finding how to fix USB mounting problem in the beginning
CM11 team
all other people for their guides and information, which I've found over the net
Update:
Uploaded new version of the zip with fixed IMEI backup. Sorry for inconvenience, but that's why I have written in the description to make a full backup.
※Please make a backup of your device before installing or updating ROM
Hi Infrared. I’m trying to instal this rom but in aroma installer I saw only the logo is instaled and then in a second the instalation is finished. At the reboot it remain at logo picture. What I am doing wrong? Should I revert the partition size at the original size? All my respect for your hard work. Thank you
Aroma installer? There's no aroma instsller for this rom. Maybe you're installing the kernel (v2.2) only.
What if I didn't do backup of NVRAM before flashing the ROM? Now I lost IMEI and Baseband Version, what can I do?
Probably you’ve to buy a new device!
Anyone got SL4A and Python for A. working with KK?
Worked fine on JB:
Changed now from JB to KK: This is AMAZING!
I've wiped system, data and cache again and the instalation succeeded without any aroma installer as you said. Maybe was a reminiscence from lambda 2.4.1 rom. Thank you.
ROM is great but not multilingual. Any chance to add Finnish lang.?
Yes, there's Finnish in framework resources. Will include it in the next version.
Here's the list of languages. If anyone wants one of them, please let me know.
Thank you in advance for values-fi,values-fi-rFI. The ROM is far better that JB, everything works fine.
Even battery drain is lesser compared to any other ROM had before.
ROM works perfectly fine, had to format because repartition was causing problems, but now it's OK, so thank you infrared and keep up the good work!
Hi infrared, good ROM. Love the trustable score. Thanks for your hard work!
One thing I noticed is that the automatic brightness seems to be quite low. Any possibility of increasing the default values a bit?
Then it will be too bright on my screen
There are different screens on A820s, people have different eyes and on top of that the light sensor is not accurate at all (especially in low light conditions), so I'm afraid it can't be made perfect for everyone. There always will be someone who doesn't like it no matter how I change it. For some it will be too bright, for some too dark.
Awsome! Thanks for your work.
Thank you infrared!
I found two particular problems:
1) after evening poweroff scheduled power on doesn't wake my phone in the morning,
2) Lenovo headset button works strange – combines play/pause/screen on/off and doesn't work during the call. Standard (?) is press to play, press to pause , double press to skip, long press to Google search/or command action, press to pick up the call, press to hold the call, long press to disconnect. I used Keytest to see button press is mapped to PLAY_PAUSE instead HEADSETHOOK.
Overall (to warn next users) I was unable to install KK after having Lambda meteos treated (with internal mem. disabled to see my SD card) – IMEI gone (reassigning in EngeeneeringMode / restore in TWRP / copying nvram via Terminal – unsuccessful, FlashTool needed).
1. I can't reproduce it. Do you turn it off manually or do you rely on automatic power off? Maybe you need to flash new preloader, because it works on mine.
2. I know headset is not configured correctly and will take a look, however I don't have such a headset to test. Same applies to bluetooth headsets.
3. That is true. Devices with repartitioned memory have problems and some lose IMEI. So complete backup is a must. It is also good if you can write down on paper both IMEI, BT and WIFI addresses. Unfortunately, the restore only works with FlashTool. Can you give me more info about this… could you fix your phone by flashing nvram only? Or you have to do full flash?
Also, yesterday I was unable to repartition my phone after full format and stock rom flash with every method available – it was either no change or corrupted emmc. So I had to recompile a full rom for FlashTools with different partition table and now it works.
So I'm looking for easiest way of reparitioning which I can give people using my rom. Currently I have 900MB system and 2.3GB internal storage, but can make any combination.
For the headsethook, can you try changing one value in /system/usr/keylayout/ACDET.kl?
Change key 164 MEDIA_PLAY_PAUSE to key 164 HEADSETHOOK