full graphic smart display

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so I got a full graphic smart display, and cant get it to turn on.https://www.amazon.com/gp/product/B076WQQX5K/ref=ox_sc_act_title_4?smid=A2K1WYI5NZ8QSW&psc=1
What EXACTLY do I have to change in firmware to get full SD support and get it to turn on. Thanks.

Did you look at the reviews?


You have to grind or snip off one of the keying tabs and twist it 180 degrees.

Optionally you can just "pull off" the plastic guide off the pins, could rotate it 180 or just remove it altogether Grinding/Snipping is messy, needle nose pliers plus a few minutes to pull off is simple and clean IMHO.