I am also of mexico so sorry my English
I also upgraded the firmware Vx858_00.0020 and after that I no longer
recognizes the USB and the display tactil this is not as locked and unlocked please if anyone can I do to leave as soon or at least to return to unlock the change Firmware that this default
alguien ayudenme por que solo prende y ahi se queda por que me dice que esta bloqueado y ni con el boton lo puedo desbloquear o apagar