Recycling information: https://forum.telus.com/t5/Mobility/How-to-Recycle-Your-Phone/ta-p/93717
The BlackBerry Bold devices are likey far too old to be able to be used further. If they are CDMA versions, the CDMA network was shut down so they'll no longer be able to connect. If they are the Canadian 3G version they would likely still connect but considering the latest Bold was released in 2011, they are still ancient by technology standards and have long outdated software.
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