SP Flash Tool is Windows-only. You can use VirtualBox or Wine, but it is risky. Use a Windows PC.
Follow these instructions carefully. Incorrect steps may permanently damage the phone. tecno t454 flash file
The flash file, often referred to as "Stock ROM" or "Firmware," is the original version of this software as provided by the manufacturer. When we talk about "flashing" a phone, we are essentially reinstalling this operating system. It is the digital blueprint that tells the phone how to be a phone. SP Flash Tool is Windows-only