514
How Do I Prepare My Phone for a Protest?
(themarkup.org)
This is a most excellent place for technology news and articles.
Also be aware that the Georgia attorney general has declared that not bringing your phone to a protest will be considered criminal intent. They’re now trying to punish people for not having their tracking devices with them.
https://georgiarecorder.com/2024/02/12/georgia-ag-claims-not-having-a-phone-makes-you-a-criminal/
This can probably be argued that places that deny phones, like courts, could be charged with criminal intent against you.