Hi Lenovo K3 Note users of India! If you are from India and you are using the Lenovo K3 Note (K50a40) then its the ROW or Rest of the World version. Have you rooted your Lenovo K3 Note ROW version within the warranty period? Then you should know that you can’t claim the warranty, if your Lenovo K3 Note ROW Version is rooted, as its violate the terms and condition. Then how to unroot the Lenovo K3 Note ROW version. There are many apps to unroot device, but at the end of the day there exist some trace by which company will know that your Lenovo K3 Note ROW version once rooted. So how to claim warranty?
Not only warranty, if your device is soft bricked and not opening or freeze in bootloader as you have tried to install custom ROM on Lenovo K3 Note ROW version. How to get back your device?
In this kind of scenario the best way to unroot or bring back your device is to Install Stock ROM On Lenovo K3 Note ROW Version.
Yes! Installing the stock ROM or Official ROM can bring your device back to the factory condition. Same as when you first access your Lenovo K3 Note ROW version. So how to Install Stock ROM On Lenovo K3 Note ROW Version? Here is the guide that you need to follow to install the official ROM in Lenovo K3 Note ROW version.
How To Install Stock ROM On Lenovo K3 Note ROW Version
NOTE: THIS METHOD IS FOR ROW VERSION OF LENOVO K3 Note (K50a40), DON’T TRY ON CHINESE VERSION
A. Download Tools:
Download Driver for Lenovo K3 Note
Download flash_tool_v5.1436.00.000.rar
Download K50a40_S112_150
B. File Preparation
Unzip or UnRar all the above file you downloaded.
C. Enable USB Debugging
Go to Settings>> About>> Build number and tap it 7 times to unlock Developer options. Then return to Settings>> Developer options and tick the USB Debugging option.
D. Install Driver
Install the driver then restart your PC, then connect your phone to PC via USB cable and wait till Windows configures it. Make sure the USB Debugging is enabled in this process. Once the configuration has completed, again restart your PC.
If you are using Windows 8 or Windows 8.1 then you may face problem to install the driver so follow these steps to install an unsigned driver.
For Windows 8:
1. Win + I -> Change the computer settings -> General -> Special boot options -> Restart Now.
2. When you turn off the tap Diagnostics -> Advanced Settings -> Boot Options -> Restart.
3. A menu appears, select it in the “Disable the mandatory driver signing checks” – for this you have to press F7.
For Windows 8.1:
1. Win + I -> Change the computer settings -> Update and Restore -> Restore -> Restart Now.
2. When you turn off the tap Diagnostics -> Advanced Settings -> Boot Options -> Restart.
3. A menu appears, select it in the “Disable the mandatory driver signing checks” – for this you have to press F7.
E. Install Stock ROM On Lenovo K3 Note ROW Version
NOTE: Before doing this process make sure you have backup of contacts, SMS, call log or files in internal memory. As it will format your whole phone.
1. Charge your phone up to 80% and disable all those firewalls or antivirus on your PC
2. Run as Administrator the flash_tool.exe, that you will find by extracting flash_tool_v5.1436.00.000.rar
3. Click on “Scatter-loading” and browse the scatter file MT6752_Android_scatter.txt, you will find this in target_bin folder inside the K50a40_S112_150
4. In the menu “Option” tab, go to “Download”, and put a “tick” in the “DA DL All with Checksum”;
4. Now choose the Firmware Upgrade option like this
5. Now hit the Green Download button like this pic
6. Now turn off the phone and remove the battery for at least 5 seconds, then put the battery back.
7. Connect your Phone to PC via USB, this will start the flashing process.
8. Once the process has completed, we will see a huge green check box. Now we can disconnect the phone from the cable.
9. Now switch on your phone, it will take some minutes for first boot.
10. You have successfully installed the stock ROM or Official ROM on Lenovo K3 Note ROW version.
If the flashing process does not start just remove the battery then put it back and repeat the process or install the driver properly. Do comment for any doubt or question. 🙂
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