Lenovo K3 Note owners in India can now enjoy Android 6.0 Marshmallow and TheaterMax. Lenovo starts rolling out the Marshmallow OTA (over-the-air) update for K3 Note in India with support for TheaterMax technology and Marshmallow features like Doze battery management, simplified app permission system, etc. As the OTA update rolled out in phases, it will take some time to get the update on all K3 Note devices.

In this guide, we will show you how to manually update Lenovo K3 Note to Android 6.0 Marshmallow. The most exciting feature the update brings to the device is official support for TheaterMax technology, besides Marshmallow features.


TheaterMax technology (first introduced in Lenovo K4 Note) brings an immersive large screen experience on Lenovo K3 Note via Lenovo’s AntVR headset. TheaterMax converts digital multimedia content into a three-dimensional (3D) experience, giving users a virtual large screen cinematic experience when viewed through a VR headset.

The Marshmallow update for Lenovo K3 Note weighs 1657MB (build number K50a40_S322_160314_ROW), which you can download and install manually, if you have any issue updating via OTA.

First, if you have not received the OTA notification for Android 6.0 update, check it by going to Settings -> About phone -> System updates -> Check for update. If update is available, let it download and install.

If no update is found for some reasons or cannot update via OTA due to network issue, you can download the OTA update file and flash it manually.

How to Update Lenovo K3 Note (India) to Android Marshmallow

1. Download Lenovo K3 Note Marshmallow OTA Update file [HERE] (1.6GB).

2. Rename the file as ‘update.zip’ and save it on your phone’s SD card

3. Boot your K3 Note into Recovery mode, select ‘install update from sd card’ and select the update.zip file.

4. Once the process has finished the installation, reboot your phone and enjoy Marshmallow features and TheaterMax technology (source – XDA).


  1. after updating into marshmallow and rebooting fone it is showing ota package failed……wht do I do now?
    please help

  2. Hello Admin,

    i have put file update.zip on phone storage and than update it with recovery mode.
    phone is non rooted.
    but the Lenovo-Recovery mode progress is stuck at 49%

    What can i do ?

  3. Sir after my updation to marshmallow my Lenovo k50a40 doesn’t work the memory card.what can I do,i think this issue were coming by any intreption during updation to marshmallow.so how can I reupdate my phone.how can I solve this issue

  4. Hi, After updating my Lenovo k3 note to marshmallow, it is not getting networks.if I use the same sim in other mob it is working.can you give me the solution to fix the issue?

  5. I have renamed the file to update.zip and I haven’t rooted my phone and the file is in sdcard but when I select install .package it shows unsuccessful is it compulsory to update the phone to the update of 335 mb update and then update this one

    • Guyz there is no need to install the update previous just download the update file and rename and select it default storage as internal storage and place the update.zip file into sdcard and don’t place it in any folder just openly paste in to SD card I have done D’s method and it is successful and it takes around 25 mins to reinstall the apps again and there are no loss of data do it at our own risk.

  6. sir i have rooted my k3 note and installed custom rom (vibe ui 3.1) ….
    so can i install this rom by unrooting and then flashing the zip file update.zip
    1.6 gb.???
    pls reply fast … thanks ..!

  7. I have do all prcess is done but last this update gose to 49 % then updateing field so help mi….
    I have to download manually update.zip file then updating filed…

    • The mentioned file is OTA, so your phone should meet certain requirements. Also, enough space is required for successful installation

  8. Hi,
    I rooted my K3Note and want to update with Android M.
    Do i need to perform factory reset before installing this update OR it will work? Also, what is the best way to install this update via OTA or installing zip file SDCard/Internal.

    Please suggest.

  9. There are problem after marshmallow upadte in k50a40….

    1.when Sd card use as internal storage, we can move apps to sd card,but after switch off or restarting a device movable apps icon show in screen but when tap those icon..device says apps not installed.

    2. when battery power down in 15%,then switch off and charged the device,after 100% charging switch on the device bt battery indicater are same as 15%..but when remove the battery from the device and put it again then battery indicater showing 100%..how to solve this types of bugs??

  10. First I went for the system to update automatically and then it showed SD card error;and boom…..! my downloaded data is gone.
    Then I tried it with the zip file,and this time it shows failed,with a ‘cross icon’.can you please help me

    • SD card error means you have not enough space on the SD card for installing the system update. Free up space on the sd card and repeat the process. Still have issues, backup any data on the phone, then factory reset and install the OTA update.

  11. i had rooted mt k3 note and installed twrp recovery , now have unrooted and installed stock recovery but still when i goto the recovery to flash the update , it says android l does not support ota sdcard update
    then when i click yes , the it goes on installing till 49 percent and then it show update fail
    please help ,

    • You will not be able to install OTA update on a modified K3 Note. Should be on factory state and latest os version.

  12. I have already uptodated to Android 6. but one problem is all apps were installed on internal memory. And downloads were also on internal memory. How to change this.


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