Lenovo P780 ROM version P780_ROW_S220_140722, patched to work with Chinese version of the phone

This is a signifiant upgrade to Lenovo P780 ROW, The OS is upgraded to version 4.4.2 KitKat. It is a full upgrade package and will erase all user data. After update, the internal storage will no longer have the virtual SD card, the entire internal storage is partitioned as 'usrdata', the android data partition.

This ROM was initially released for the international version of the P780, I made 2 changes to it, to make it work with the chinese version (no 900 MHz), 4GB (non-ROW), which is now bundled with the VIBEUI ROM. Here are the changes I made: 1) I removed the device check from the installer, now the zip could (but I don't advise to) be installed on any device, and 2) the baseband used on this device is the one bundled with the VIBE UI ROM, the one that works with the non-ROW version of the phone. This ROM has all the apps which the international version has: Google play, more languages, etc.

Applying this update will also remove custom recovery and replace it with factory version. The first restart will take longer as usual, so be patient on the first boot. 'boot' and 'recovery' images are overwritten by the update, if you use root and/or custom recovery, you will have to reinstall them custom recovery with SPFlash Tool.

Before upgrading, back up your data (SMS, Call logs, Apps) with Lenovo Backup & Restore, you will be able to restore it later with the settings / backup and restore utility.

What's new

- OS is upgraded to version 4.4.2 KitKat
- A new 'Lenovo Security' app is provided, this includes antivirus, privacy guard, data usage (and firewall), SMS/call anti-SPAM, speed-up, private space and anti-theft features
- new versions for most system apps (dialer, sms, calendar, email, power manager, etc), google play store, flashlight widget and app
- more privacy
- a memory cleanup button has been added below the task list
- SMS and home screen app can now be switched from the settins app
- 'Smart Scene' feature allows automated audio profile switch, either at a specified time or at a specified wireless network presence
- More theme-able (lock screen, system UI, boot animation, notification UI, contact manager and in-call app can now have different themes (even though a very low number of themes is provided).
- reboot option added to shutdown menu
- all audio volumes are available/adjustable when pressing volume-up/volume-down
- flip-to-mute incoming call alert, auto-redial option
- LED alert now flashes, instead of staying continuously lit (but still doesn't provide notification from other apps, such as facebook)
- the display colours can be tuned for saturation and hue (white balance)
- a 'wireless display' function has been added
- 'Smart Display' feature, preventing the screen to enter standby if the user is looking at the screen.
- Available languages: Bahasa (Indonesia & Melayou), English, Spanish, French, Vietnam, Russian, Chinese, Ukrainian, etc.
- the internal virtual SD card has been removed, now all the available internal storage is provided as a single partition

Notes

- The baseband contained within this ROM is for China version of Lenovo P780, do not attempt to install it on ROW version!
- automatic updates will fail, due to changes Lenovo made in the update mechanism. For example, the update to ROW_S221 checks for the checksum of the modem.img file, thus making the update to fail.
- after installing Chainfire SuperSU onto this rom, you will gain root, but the current version of chainfire will complain about ‘not being up to date’, this will likely be fixed in a future version of SuperSU

How to install the ROM

You need a custom recovery able to install zip from SD Card. Download the zip, copy it to the phone card, Power off the phone, start the phone by pressing 'power + vol-up + vol-down' to enter recovery interface, apply zip update.
Recovery working with this ROM: Carliv Recovery v. 2.2 (even though it isn't perfect, it's able to apply zip/sideload updates), TWRP 2.5.0