Here you will find the direct link to download Stock Firmware for your QMobile LT550 Android Smartphone. The zip package included with Flash File, Flash Tool, USB Driver, and how-to Flash manual instructions. This device running on Android v7.0 Nougat version which is manufactured by SC9832 CPU. Use SPD Upgrade Tool for flash Firmware on this device.
[*] Chipset: Spreadtrum SC9832.
[*] Driver: SPD SCI Android USB Driver.
[*] Flash Tool: SPD Upgrade Tool.
Download QMobile LT550 Firmware (Flash File)
Build Number: QMobile LT550_V08_20170707
Android Version: v7.0 (Nougat)
Download Size: 1.43 GB
How To Flash
Step 1: After download the zip package then extract the Firmware.
Step 2: This flashing process required to install SPD SCI Android USB Driver.
Step 3: Open SPD Flash Tool and select the Pac file 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 QMobile LT550 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.