If you have connected your Tecno NX R8O phone to PC through test point but it is not being detected, it means that DA file has not been added. Test point is successful only when DA file is present during flashing, otherwise the whole process goes in vain. Sometimes mobile users only know that the phone is not turning on, but in reality the phone is stuck on secure boot. If you want to reflash Tecno NX R8O mobile then there is no better solution than DA file, this file makes flashing easy.
Some new users think that just the scatter file and firmware are enough, but when they connect the Tecno NX R8O mobile to the SP Flash Tool and there is no detection, then they understand how important the DA file is. The advanced security systems of the Tecno NX R8O mobile, such as trusted boot or hardware encryption, block common tools. In such a case, the DA file is the digital key that gives us access to the system so that we can install the firmware.