Last year, when Google first started rolling out its first-party RCS chat system, the company promised an easier way for folks to "deregister" their phone numbers in the event they switch platforms. Like iMessage, the system required a phone number-based registration, and that could mean missed messages if you forgot to disable the feature before changing to an unsupported device. Today that's no longer a problem: You can now deregister your phone number and disable chat with an easy form that's basically identical to Apple's system.

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