If your phone still boots, try to backup the NVRAM/NVDATA partition. This area contains your network calibration and IMEI data.
This message is a direct indication that the phone's protection has rejected the connection because it lacks the proper cryptographic key (Auth file). This security feature is designed to prevent unauthorized access, but for repair technicians and users trying to fix a bricked device, it represents a "hard wall" that can seem impossible to overcome. The core issue is that for many newer Infinix models, these Auth files are not available publicly . Infinix MTK DA Auth File
Hold the or Volume Up button (depending on the model) and connect the phone to the computer via a USB cable. Monitor the Progress: If your phone still boots, try to backup