I have a BlackBerry playbook and it has not worked properly for years: I think it has something to do with https support or some other aspect of authentication

I have a BlackBerry playbook and it has not worked properly for years: I think it has something to do with https support or some other aspect of authentication to websites, but 90% of websites don't work with it, even with the latest update which is years old. It's too bad because the playbook, like other BB devices from that era is running QNX and with a terminal emulator could have been a handy tablet to play with if it could connect properly to the internet