gilcio you could try booting up first with SD image in using toothpick method to make it multiboot if you haven't done so already, then retry it from SD (without toothpick) and then if that still does not work then try with the USB port instead of SD. Try all ports and possibly only one (the OTG port perhaps) might work.
Thanks Jed for the support! But unfortunately, it didn't work with any port. Maybe I should try another files. What version should I exactly use for the Tronsmart Vega S89?!
Anyway, if it doesn't work 'til weekend, I'm thinking about disassemblying the tv box and taking a look at UART data for more information.