[Lenovo Vibe K5 Plus Guides, News, & Discussion] adithya2306:
Hi guys,

This is a step-by-step guide to update your Lenovo Vibe K5 (a6020a40) to the latest build S102 with VoLTE support, or basically to install VoLTE update on Vibe K5.

Since many guides & youtube videos tell different methods, I have come up with the best solution.

Requirements

-Lenovo Vibe K5 (a6020a40) (SD 415, 2GB RAM variant) running any ROM

-S034 firmware: https://docs.google.com/a/repairmymobile.in/uc?id=0B1hm-6TNn10IcUtHOWZLaUtzUEU&export=download

-OTA Zip to set Country as India: http://www.mediafire.com/file/j6icttemsrq266e/India.ota.zip

Please note that this will erase your data & internal storage

Also note: If you already are on S034 build with stock recovery installed & not rooted, then skip the steps 1-9.

Steps:

1) Download the S034 firmware file and extract it to some handy location (preferably desktop).

2) Go to the "Drivers' folder in the extracted files and install Lenovo USB Driver, and then install Qualcomm USB Driver.

3) Now to go to the "Tools" folder in the extracted files and install QPST.

4) Download the OTA zip to set country as India, and copy it to your device's external SD card.

4) Take backup of all your stuff (apps, messages, contacts etc). The next steps will wipe your data & internal storage, so if needed copy your internal storage to your PC or external SD card.

6) Open QFIL from Start Menu as administrator (Start Menu > All Programs > QPST > right-click on QFIL and click "Run as administrator")

7) Copy the "SW" folder in the extracted files, to the root of your C:\ drive in your PC. Otherwise, sometimes QFIL gives a "sahara" error while flashing.

5) Now power off your phone. Make sure its not connected to your PC. Remove your SD Card from the phone to be on the safer side. Once it is powered off, press the volume up & down buttons together and connect your phone to your PC. The screen should now be black & the notification led on your phone should turn red.

6) Now QFIL should show "Qualcomm HS-USB QDLoader 9008".

6) In QFIL, click Browse and go to C: drive > SW > Images and double-click on "prog_emmc_firehose_8929.mbn". Then click on "Load XML", and in the file selection window that opens, double click on "rawprogram0.xml" and on the next window, double-click on "patch0.xml"

7) Now click on "Download" button. This is the step that erases your data & internal storage. This step will take around 10-15 mins.

8) Once it shows "Download complete" with a blue text in the downloader log (bottom part of QFIL window), disconnect the USB and power on your phone. Since this is the first boot, it will take around 5-10 mins.

9) Now, once it is booted and it shows the welcome screen, power off your device.

10) Once your device is switched off, press Vol up + Vol down + Power buttons together until Lenovo logo appears. Now it should boot into Recovery mode.

11) Navigate to "apply update from sd card" using Vol up & vol down keys and press power button to select that option. Now navigate to the file "India.ota.zip" which you copied at the beginning and press power button to install. This will take 5-10 mins and again data will get erased (not internal storage). After installation the device will reboot automatically. It will take 5-10 mins to boot.

12) Now once it is booted, complete the setup guide, and make sure your device is connected to internet. And then go to Settings > About device > System updates. It should show a new update of 49 MB. Download it. Once it is downloaded, tap OK to install the update. This will again take 5-10 mins & will NOT wipe anything. After installation your device will automatically reboot.

13) Check if you have S102 build number (Settings > About device > Build number). If yes, then you're all done. Now VoLTE is enabled in your Vibe K5 A6020a40. If you want you can restore any backups to your device. :) :good: