I bought an old iPad2 for the purpose of viewing a Home Assistant dashboard via a web browser. My thinking was that the ability to browse the web was the sole requirement for a tablet for this purpose, but I was wrong: Home Assistant’s web pages apparently require a newer version of javascript than iOS 9.3.5 can handle, but the iPad 2 can only be updated to iOS 9.3.5.
So is it possible to flash a newer OS (e.g., linux) onto an old iPad 2? ChatGPT says it’s not possible because a bootloader exploit for the iPad 2 isn’t known, but ChatGPT is often wrong.
Good news. You can install a newer browser in a virtual machine on some other server you have and then use some Remote Desktop software on the iPad to access the VM which can run a browser to access your Home Assistant dashboard.