Specifically compatible with 1366x768 LCD/LED panels.
Download and extract the .rar or .zip file. You should see a file with a .bin or .img extension. Download P75 2831V6 1366X768 Firmware part01 rar
Updating the firmware is a common fix for bootloader errors, "hanging" at the logo, or mirror display issues. Specifically compatible with 1366x768 LCD/LED panels