You can download Lenovo A6000 Stock Firmware ROM Flash File from here and upgrade your phone. You will find the official link to download Lenovo A6000 Stock Firmware ROM (flash file) from GoogleDrive. The firmware comes in a zip package, which contains Flash File, Flash Tool, Driver and Howto Manual.
How to Flash Lenovo A6000:
Step 1: Download the firmware file and extract the stock firmware on your computer in a folder.
Step 2: After extracting the folder you will find the Firmware, Driver and instruction manual in the folder.
Step 3: Now, Install the USB Drivers if you already install the drivers then skip this step.
Step 4: Now, Follow the instruction manual to flash the firmware on your smartphone. DONE!
Important Note: Before install, firmware takes a Backup of your personal data because after installation you all personal data will be removed.
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