Hi, I'm having trouble installing the ROM and now i want to install it onto the box instead of using an sd card, i tried using sd card i mounted the .img.gz onto the sdcard using the recommended way it seemed the box's sd card slot doesnt work i tried using flash drive before booting the device i hold the toothpick on the reset button and then booted it but it only formatted the box and gave an error "unknow volume /frp" and booted back to stock rom. now i want to install it onto the rom but i cant find a proper guide for this.