Here you will find the direct link to download Stock Firmware for your Symphony H300 Plus Android Smartphone. The zip package included with Flash File, Flash Tool, USB Driver, and how-to Flash manual instructions. This device running on Android v5.1.1 Lollipop version which is manufactured by Qualcomm MSM8916 CPU. Use QFIL Flash Tool for flash Firmware on this device.
[*] Chipset: Qualcomm Snapdragon 410 MSM8916.
[*] Driver: Qualcomm Android USB Driver.
[*] Flash Method: Fastboot / Professional Flash Box.
Download Symphony H300 Plus Firmware (Flash File)
Build Number: L5261AE_PR2_5.1_00_12
Android Version: v5.1.1 (Lollipop)
Download Size: 967 MB
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 Symphony H300 Plus 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.