Prusa i3 MK2 kit startup issue / blank LCD panel  

Prusa i3 MK2 kit startup issue / blank LCD panel

Back in March 2017 in Mexico, where I live, I had just assembled with in 3 days my new Prusa i3 Mk2 kt, which was a the state of the art at the time a day before a job related trip that I had, everything seemed in place and the machine was aligned as descibed on the manual, the power was set to 110 v (Mexico as all North American countries has the household electricity at 110v @ 60hz and the same wall plug),

Never the less, the machine did not start up, the LCD panel only blinked and turned off, and I had to let it for the next week end.

Durinring the job trip I had an important personal loss and within two weeks after I was getting a new job, both of which postponed a lot the fix of the issue, what ever it was

Now two and a half years latter I'm trying to carry on where I have left and after checking the connections to be the same as in the manual (there is little room for mistakes) and checking on the SD card that shows all original files from factory with out issues on my PC computer I still have the same issue; when the machine is turned on the LCD panel blinks on a blue glow at full brightnss, but blank (with out any word or message what so ever) and then goes black and by turning the LCD knob, the LCD panel blicks at low brightness on each step and doesn't respond to the button on the LCD Knob or the + button and the printing bed leveling prove light remains on all, showing that the machine is in fact powered

Have anyone seen this same issue?, does anybody knows how to fix it?

Thanks a lot

Jorge