A few years ago I wrote an iPad app that was to run on only a few of the client's iPads. They're currently having issues with the app exiting upon being opened. It turns out this is due to the dev provisioning profile associated with the app being expired.
I tried renewing the provisioning profile but am unable to access the Provisioning Portal because my dev account needs to be renewed. Renewing my account is not an option right now.
I'm aware that as of Xcode 8 users are able to install apps on physical devices for free. I don't have access to the client's iPads and have been issuing out updates by archiving the .ipa file and using diawi.com for them to install.
How can I just renew my provisioning profile so that my client can successfully open the app?
Thanks
This is not possible. What you need to do is generate a new, valid provisioning profile and run the app again on your client's iPad. However, I should note that for this type of development, Apple wants you to use ad-hoc distribution through the enterprise developer program.
Also, to be able to generate a new, valid provisioning profile you will need a valid account.