Yup, I tried 5V without any modifications and didn't work. I was not able to test 12V though so I'm not sure about the temperature there. I did have 5V hooked up unmodified (even though the screen didn't work) and left it for several minutes to observe the heat and things were much cooler.

Hello everyone, I received one of these BW amazon screens and PCB didn't match any of the variants: https://i.imgur.com/akRCsdf.jpg I saw that in other variants the top pin of 1117H was used for 5V conversion so I did this here too (apologies for the terrible wiring job, but it works ) However I not...