How can I install iOS 15 and above as a beta profile on iPhone 6?

beta profile ios 15In 2025 the first public beta of iOS 18 arrived on July 15, while in 2025 the first public beta of iOS 17 arrived on July 12. ... it was necessary to download and activate a beta profile on yourIf you are running the beta build of iOS 15 on your iPhone, it would be vital for you to remove the profile before you proceed to install