In phones with modern MediaTek chipsets like Tecno IN1 PRO mobiles, the flashing process cannot be completed without the DA file. This file makes flashing possible by temporarily disabling the mobile’s secure system. If you have ever seen a mobile flashing process fail after reaching 100%, then understand that the DA file was not compatible. There is a specific DA file for each Tecno IN1 PRO phone that matches its chipset. Some users think that the DA file is only for advanced users, but the fact is that if your mobile goes dead or gets stuck on FRP lock, the DA file can be your biggest support.
When SP Flash Tool fails immediately and shows an error code while flashing Tecno IN1 PRO mobile, you need to load the DA file as a custom file so that the system accepts it and allows flashing. The DA file is basically the communication bridge that connects the mobile to the flashing software, especially when security features are blocking it. In phones like Tecno IN1 PRO, this file is essential for successful flashing. If you search on Google “why my phone is not detected in SP Flash Tool?” and your phone is Tecno IN1 PRO, then the first answer will be the DA file because without it the flashing process remains incomplete.