- 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
Btw, maybe a good news for all of you.
I have decided to introduce android patch level to this ROM as well and will patch any vulnerability I can.
So stay tuned… I haven't forgot about other fixes promised too, although it was long time ago.
Great, thx in advance. My A820 still alive. BTW my power button works ok, however I save it using app Shake to turn the screen on.
Thanks infrared. Any idea when this will happen?
Cheers
I can't tell you ETA, since I'm very busy with my regular job, but I already started to explore the patches.
Still on August patch level, but I have many things already patched from before (mostly in stagefright lib – only latest patches missing), but I have to go through all other bugs that were patched in official Google builds anyway, so it will take some time.
Updated to September, but October is a big one: https://source.android.com/sec.....2016-01-01.html
Hopefully next week I can fully update it.
Thank you for your work!
Update: Stuck at one bluetooth update, so it will take more time than I wanted. Once it is done, I will upload here.
Hi I installed this ROM before but sometimes afterwards it would just bootloop. I can see the Proton logo but thats it, doesnt move to the OS. Ive cleared the Dalvik and the cache but still doesnt work. What is the problem?
When I was instaling your rom i`ve repartitioned sdcard to 2,2GB. Now i want 2,7GB. I`ve instaled few apps and don`t want to do clean install. What can I do? I don`t have any files on sdcard1. Can i just run repart tool again and select 2,7GB without loosing my data?
No, you will loose the data.
However, you can backup data partition from TWRP and save it to external card. After running the repartition script you can restore it.
I will only restore the data, not the original partitions.
No OS now. Only Lenovo logo..
You have to reinstall ROM as well, if system partition is also resized.
Hi infrared, is it materially possible to port one of those lollipop roms for mt6582 and mt6592 also for mt6589?
People always say everything is possible.
The main problem here is the GPU, which is different. Stock SGX544 binaries from KK/JB don't work for LP.
Simple porting won't work for sure, it needs to be compiled from source.
The ROM works very well! Thanks!
However I have noticed some very strange behaviour of phone brightness. My phone brightness starts to adjust itself several times within a second, both darker and brighter. What's interesting, is that it happens only when phone is in artificial light and not in sun-light. Maybe the sensor might be confused by incandescent lighting frequency?
I didn't have this problem in Infrareds 4.2 ROM, so maybe it might be a bug in new one?