Your Nokia C5-00 and Nokia E72 work after installing the Networking Improvement.sis. Thanks goes to …
Symbian/60 3rd Edition Feature Pack 1 (like your Nokia E71) does not support this SIS. Therefore, ‘File corrupted’ or ‘Web: Unable to perform operation’ is shown in the Web browser when accessing a SHA-2 based service.
Symbian/S60 3rd Edition Feature Pack 2 is required for this SIS. Please, restart your phone after installing it. Otherwise, you are not able to install new SHA-2 based certificate authorities (roots): ‘Unable to open. File type not supported’. If you use an older firmware, you have to install the certificates not via the Web browser but via Nokia » Menu » (Applications ») Organiser or Office » File manager » Memory card » download. Otherwise you get ‘File corrupted’.
Symbian/S60 5th Edition: Depends on the firmware version? Please, report success or failure!
Symbian^3, Symbian Anna, and Nokia Belle support SHA-2 out of the box.
Nokia Series 40: SHA-256 works for me since PR 9.1, for example the Nokia X3-02 (only after a firmware update) and Nokia 303 (with initial firmware version). Neither SHA-512 nor SHA-384 based certificates work, even not in the latest Nokia 515.