Hey y'all.. recently bought this nifty 4 color e-ink case similar to this one. It has an app with a canvas where you can make something and then push it to the case via NFC. I'm trying to figure out how to bypass the app so that I can e.g. push my own images via Tasker or the like.

I don't know how the app is communicating with the case and pushing things though. When the case is static (not being pushed to), I can read the NFC tag with my Flipper and it contains some data, but it's only about 20 bytes (rest is 0000's), not sure if it's enough for an image. Furthermore, I tried changing the image and emulating the old tag while slowly moving over the case figuring it would write the old image or something, but that didn't do anything.

Any thoughts on where to begin? TIA.

Edit: oh yeah, I also tried pushing via the app with the case off and reading the NFC signal from my phone but I don't pick anything up, in fact I think the phone thinks I'm trying to do a contactless payment and pops up Wallet.