How To Flash Lenovo X3 Lite K51 c78 Android 5.1:-
Download And Install Spreadtrum Drivers.
Download And Install SPD Download Tool R2.9.7.002.
Please Read and understand the Full Guide before Performing Any Action.
Use these instructions at your own risk. We will not be responsible for everything that happens to you or your device, resulting from the use of information in this guide.
How To Flash / Update Lenovo X3 Lite K51 c78 Android 5.1 Stock Rom With SPD Upgrade Tool:-
Step 1. Open the Research download tool > bin folder.
Step 2. Launch ResearchDownload.exe.
Step 3. Click on the Load Packet icon (top left corner).
Step 4. In the window that pops up, navigate to the location of the .pac file, select it then click Open.
Step 5. The PAC file should now be loaded (its name should appear at the top).
Step 6. Click the Settings Icon (top left corner).
Step 7. In the box that pops up, untick any item(s) you do not wish to flash then click OK. Ignore this step if you wish to flash all files.
Step 8. Click the Start downloading button.
Step 9. You should see Waiting…. under the Progress bar.
Step 10. Switch off the phone (still with battery inside) then connect it to the PC via USB cord (note that you might need to hold the volume decrease button while connecting to PC on some phones) and flashing should begin. DO NOT interrupt.
Step 11. Once flashing is complete, you’ll see Passed.
Step 12. Click on the Stop downloading icon then disconnect the phone from PC and boot.