Quote Originally Posted by srspinho View Post
But, as you told in your last post, I will tie thr resistors before turning my lcd on. I dont´t want to fry my board and the LCD
In my case, with power applied correctly, and only power, no code is running, no nothing, the LCD has a bluish background on it. The initialization has to command the backlight to come up. If it doesn't, you won't see anything on the screen unless you've got great eyes and tilt the thing at just the right angle, then you might barely see shadows of something on the screen...if you've written something to it... Other than that, it'll be blank.