You are about to download the Dexp B255 - MT6580_S1_20180830.rar file on your computer. The file comes as a zip package and the file size is approximately 1GB only. It was uploaded on October 25, 2019. It was uploaded by the registered moderator, for firmware247.com.
[*] Take a Backup: If you are going to flash the above Firmware on your Dexp B255 device, then take a backup of everything as because your personal data will be deleted after flashing the stock firmware.