Try a different USB port or a different thumb drive. Some units are picky about the brand and size of the storage device.
: Find the compatible firmware for your specific device model. Unzip the files and place them in the root directory of the USB drive. quadcore t3 p1 update top
units claim to run Android 10 or 11, they are often "spoofed" versions of Android 8.1 or older . Updates can sometimes provide a more authentic experience or better app compatibility. Try a different USB port or a different thumb drive