Here you will find the direct link to download Stock Firmware for your Lenovo S5 K520 Android Smartphone. The zip package included with Flash File, Flash Tool, USB Driver, and how-to Flash manual instructions. This device running on Android v8.0.0 Oreo version which is manufactured by Qualcomm MSM8956 CPU. Use QFIL Flash Tool for flash Firmware on this device.
[*] Chipset: Qualcomm Snapdragon 650 MSM8956.
[*] Driver: Qualcomm Android USB Driver.
[*] Flash Tool: Qualcomm Flash Image Loader (QPST).
Download Lenovo S5 K520 Firmware (Flash File)
Build Number: OPR1.170623.032 dev-keys
Build Description: K520_ROW_OPEN_USER_Q00011.0_O_ZUI_3.7.208_ST_180630
Android Version: v8.0.0 (Oreo)
Download Size: 2.24 GB
How To Flash
Step 1: After download the zip package then extract the Firmware.
Step 2: This flashing process required to install Qualcomm Android USB Driver.
Step 3: Open QFIL Flash Tool and setup the programmer path from downloaded flash file.
Step 4: Connect your device to the Computer and start the flashing.
[*] The flashing process can erase the devices full ROM, before starting flash please make a backup for your important data.
[*] After installing Firmware on your Lenovo S5 K520 device it will startup with a Factory Default condition. Firmware flashing on your device help to recover Software related dead issue, remove security and upgrade the operating system.