First of All, Welcome to my BLOG On this Thread, you will find the Original link to Download Lenovo K6 Note K53A48 6.0 Marshmallow Stock ROM Firmware from Google Drive. Lenovo K6 Note K53A48 Firmware Package comes in a zip package, which contains Flash File and Flash Tool and Driver with How-to Flash Manual.
Device Name: Lenovo K6 Note K53A48
Android Version: 6.0 Marshmallow
Install via: SP Flash Tool
File Size: 1.0 GB
File Hosted: MediaFire
How to Flash Lenovo K6 Note K53A48 Stock Firmware
Step 1: Download & extract the Firmware on your computer.
Step 2: After extracting Firmware zip file you will find the Driver and Installation Instructions.
Step 3: Install Latest available USB Drivers (Just skip this Step if your Computer already have).
Step 4: Follow the instruction to flash the firmware your Lenovo smartphone.
Download Lenovo K6 Note K53A48 Firmware Update