You must install updated root certificates to allow the device to connect to modern HTTPS websites.
Various "modded" versions of the old YouTube SIS files occasionally surface in community forums like Reddit's r/symbian or Mobile9 . 2. Browser-Based Alternatives youtube s60v3
hstsethi/awesome-symbian: An Awesome List about ... - GitHub You must install updated root certificates to allow
: This is currently the most reliable way to watch YouTube on S60v3. It is a Java-based client that uses the Invidious API to bypass modern YouTube restrictions. youtube s60v3