Alternate OS for a Samsung Galaxy Note 10

[theogonzalez]

I have a Galaxy Note 10 and I just ended my phone service with AT&T. It seems that now that I don't have phone service the battery life is horrible. I believe its because the phone is constantly trying to find a Cellular signal which is continuously running down the battery. I attempted to install GraphenOS as a replacement OS and I was unsuccessful. I kept getting stuck at the Blue Screen that said Downloading when I tried to reboot. I guess what I'm trying to find out is if it's possible to have a OS like a GraphenOS or something similar on this device? I really just want to use the device as a Camera and MP3 player but its important I can have the best battery life possible. I don't want to have to keep charging it twice a day like I have to do now since I ended phone service. Your recommendations are greatly appreciated.

[currentshaft]

Why would you try GrapheneOS when the documentation clearly states it only supports Google Pixel phones?

And why would you not just put the phone in airplane mode to address the issue described?

Looks like you can load LineageOS on that device: https://wiki.lineageos.org/devices/d1/

[slovenskekasina]

Pixel Experience or /e/ (Eelo) OS