DESCRIPTION
Description
Android: 4.2.1 (port)
Kernel: A820_S150 (Kernel&Radio)
Root: yes
vMS 4.2.1 – IV [05/06/14]
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Fixed problem with generating a dump files when the phone was connected to the charger (as in a previous version).
Improved WiFi and connect to the access points.
Network indicator is hidden when the SIM card is disabled in the settings or slot is not occupied. This does not apply when it is actually out of range GSM/3G.
Contacts and SMS application is now in dark colors.
Updated applications that were previously.
TBA…
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Old versions:
vMS 4.2.1 – III [03/27/14]
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Error while charging and generate "spam" in /data/core
Mountpoint and description for memory (sdcard and internal memory)
Occasional problem when performing file operations.
Reduce bitrate for video. The quality will be the same (i guess), but the output file will be much smaller.
Autostart option in settings
Google Play, Google Keyboard
Clock app,Cyanogen Calculator
A ton of changes which even I do not understand 
I checked WiFi Direct – works correctly but need an external application to transfer data.
If you have a problem with the contacts you need to check the options of displaying, or import them again.
Contacts are recognized after a minimum of 9 digits. I can change it but for now I prefer to leave as is.
All tested using TWRP. CWM – unknown, but it should work
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vMS 4.2.1 – II [02/14/14]
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1. Added support for several languages. There is no possibility that all is well, but I tried to add as many as I can. I'm not omniscient.
2. Added SIM Toolkit and NoteBook. Removed redundant widgets and some unnecessary files.
3. Adding support for multiple users
4. Fixed a problem with the recording after adding effects.
5. Added support for headset button.
6. Changed the YouTube application. Reason: poor quality of playback in previous version.
7. The little fix in installation script. Added full of BusyBox options witch update.
8. Fixed caller_ID and SMS, little optimization in apk files, ODEX and other things.
Known issues:
1. Occasional freezing on "Lenovo" screen on (re)start. Not everyone even notice  Simply remove the battery and reboot. Probably the reason is Xposed/Gravitybox but thing to check.
2. Miracast still not working
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vMS 4.2.1 – I [01/28/14]
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- root by default allows to all, so you can install any application to control root permissions
- init.d support
- fm radio works without headphones
- possibility to install applications on the SD card (also from GooglePlay)
- removed the MediaTek camera (color change), integrated the Google camera with 720p videos recording
- ClearBass equalizer & BraviaEngine2 from Xperia
- replaced Calculator witch CyanogenMod Calculator
- added: FlashPlayer, TotalCommander
- fix sound, sensors, clock, dialpad, and many other things to make it work for Lenovo as properly
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Installation via Recovery (for example TWRP 2.5.0.0)
Step 1: Download the custom ROM copied to an external SD card root directory
Step 2: the shutdown state. While holding down:
– Power button + volume button up + volume button down, to enter the recovery mode.
– !!! MAKE A BACKUP OF YOUR FILES !!!
– Wipe -> Advanced Wipe -> Check: Davik Cache, Cache, Data -> Swipe to Wipe
Step 3: Return to main -> Install -> Select your ROM -> Swipe to Confirm Flash
Step 4: Install complete, restart the phone Patience required – first boot takes a while.
※Please make a backup of your device before installing or updating ROM
Member Info
Not jet open source. IT IS INCOMPLETE!!!!!!
Its complete
The open source link
https://www.dropbox.com/s/m9hf.....novo%20A820.zip
So, what can you do now with the open source?
with sources it's possible to port 4.3-4.4 android and even make many things work.
I think the only thing that is missing is miracast.
We are waiting for KITKAT!!!!!
also, overclock may be possible (some says it could be possible to raise the clock of mt6589 to 1.5, just like the turbo version! They also sey that even higher frequencies (1.7) are possible!) and some tweaks/adjustments to hardware performances (camera, gps, wifi…)
The version IV works very well. Thanks a lot..
Hi mastersanta thanks for this excelent ROM. I just want to know if is possible to change the contact manager for another app like IdeaFriend and make it as default.
Mate,you have done a great job..So far no errors and the rom is working fast and fine..Thank you very much for the IV version..I recommend it to everyone having issues..
Hi Mastersanta, BIG JOB congratulations !!!
But ….
if no one has a problem with the switch on the phone after you set the schedule on and off?
Evry time phone stops on the Lenovo logo. Where is the problem?
There's a couple of issues when using vMS-4.2.1-IV in Ukrainian language. While using English locale I haven't notices the following issues!
First is the most significant – Phone app crashes after using it for a couple of minutes when switching between contacts and all the synchronized contacts, calling history suddenly disappear and nothing shows up until the phone synchonises them again in 15-30 minutes! Besides, all accounts such as Google, Facebook, Skype disappear as well from the Preferences menu.
Second issue is for Backup and Restore app which crashes when trying to backup contacts. Once again, there are no such issues when using English locale
Excellent – fast and stable. Thanks MS!