Hi TBI_2,
welcome to the Apple (user-to-user) Community.
Re: "Removing activation lock" : "He needs his device to stay in touch with family."
How to remove Activation Lock on a device:
How to remove Activation Lock – Apple Support
Else:
If the person knows their Apple ID, but can't turn off Activation Lock:
Apple support has an article online that can help:
Activation Lock for iPhone, iPad and iPod touch – Apple Support
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Re: What can be done to reset the phone completely so it can be used again?
If all else fails:
Start a support request
If you need help with removing Activation Lock and have proof of purchase documentation, you can start an Activation Lock support request.
More support if needed:
If needed
How to contact Apple for accessibility support
https://support.apple.com/apple-id
or
Apple ID support / help
There's a "Get support" link at the bottom of their website (link below)
(Eg: you may be able to choose from: online chat, phone, email etc)
https://support.apple.com/apple-id
All the best :-)