Nextion Black Screen

1

Hello

Je suis Français et je debute mais j’aime l’electronique.

Excusez c’est google traduction

I have a problem with my Nextion NX8048T070_011 screen

It’s a problem that happened suddenly.

When I load a compiled tft on the sd card and insert it, the screen turns off of course.

I turn on the screen again everything goes well the tft is loaded in the screen.

Once finished I turn off the screen and remove the sd card.

I reconnect the screen and that’s where there is the problem: black screen!

I searched the net and found a tft l_T070.tft file

Inserting it first I see that it is a Nextion Intermediary file.

After this maneuver I can review my projects but as soon as I unplug and plug in the screen,

Again black screen and you have to start all over.

I saw this forum and I signed up for advice.

There may be a method to revert to the original or the original home file.

I thank you in advance.

2

You are using somebody elses .tft file?

Why not create your own simple test HMI to suit your own display using the Nextion Editor.
Nothing fancy required, just a single page with white (default) background and a text field.
“Hello World” :wink:
Default dim level will be 100%

That way you can check the backlighting.

3

Hello
Thank you for the answer.
You can imagine I have already done what you tell me.
Either way I returned the defective product and will get my refund.

I ordered a new but K series with its protection because I feel that by manipulating it to disconnect and reconnect I put my hands on the components and that must not help matters.

I keep my fingers crossed for the next screen and that it will be more solid.
I don’t understand why with Nextion tft intermediary it works.

We should be able to reset this screen to factory mode with a reset button.

In any case, thank you for your answer and I will come back to this site often.