If I replace that chip I would need the firmware/hex file on that chip. Is the firmware running on this chip somehow available so I can repair my display?

Please see the picture attached.

Thanks for any help!

I’m wondering what kind of electronic components and modules would work best for this kind of project. For example, should I focus on OLED displays, touchscreen modules, or simple RGB indicators? And what microcontrollers would be easiest to integrate with a phone (Bluetooth / Wi-Fi communication)? I’m thinking about lightweight boards like ESP32 or Raspberry Pi Pico, but I’d love to hear your experience.

I also sketch out strategy ideas for mobile games on my site and sometimes think about how that could be enhanced with hardware, you can see some of the planning concepts at getclashofclans.com
but I am especially curious about the hardware side here. Has anyone tried something similar or have suggestions on displays, power management, or communication modules that are easy for beginners but still powerful?

Thanks in advance!

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In what type of circuit is the total resistance smaller than the smallest resistance?
Which one do you choose? Tell me your answer boldly 💯

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could someone please let me know what battery size i should get.

This is why we need schematics, to confirm whether this is a design bug or a short on the circuit board connecting the wrong things. Based on my experience wiring 7-segment displays since the 80s, I'd say this is a design bug and the display is connected incorrectly to the chip. But I'd really like to see a schematic to confirm this.

Test code: https://pastebin.com/GYhcmmSm