How Long Does iMessage Deactivation Take?

[Mark Phillips7]

Recently my father switched from an iphone to a samsung galaxy and fell victim to the imessage limbo problem. After following the deactivate imessage withouth the device instructions, including having the sender delete old threads and waiting a few hours, the change still hasn't taken. How long does deactivation take to kick in?

 

[VW Maverick]

If he has not already, have him check this out: http://www.android.com/switch/

Mav.

Sent from my Sprint Tri-Band Nexus 6.