Here is a solid blog post breaking down exactly what this file is, where it came from, and why you should be very careful before double-clicking it.
In this post, we are going to break down exactly what this file is, the hardware it supports, and the critical steps you need to take before flashing it. TP.SK513S.PB802 1920x1080-1G-8G-ONVO-USB.part3.rar
: Most boards of this type require the USB drive to be formatted to FAT32 for the bootloader to recognize the update file. Here is a solid blog post breaking down