I'm not sure how many on here still use a Symbian device. In comparison to newer phones they might be sluggish but my E7 still does stuff and has features that other newer phones don't have. My wife regularly complains that while her 920 is smooth and fast it doesn't do what her old N8 could do.
Anyway I still use my E7 on a daily basis. Yesterday there was much angst as my E7 became almost unusable. Whenever I went to use the on screen keyboard the phone would lock up.
It took a while to figure out the problem was with the on screen keyboard and then the real issue was the Swype app. After some Googling I discovered that last year there has been a similar issue caused by an expiry date in the app. The problem was resolved with an update from Swype. It appears the update had an expiry date of 31/12/2013. As from yesterday Swype no longer works on Symbian devices.
One quick fix is the change the phones date back a year. There is another fix which is to install the previous version of the app and install a hack to change the expiry date. There's info on this on the Daily Mobile site. I haven't been successful in doing this yet. I am not sure I have the correct version and I keep getting an "Expired Certificate" message which stops me installing the older version.
The other option is to turn off the Swype option and use the normal QWERTY or T9 keyboards.
When I find out more information I will post it here.
However I am pretty annoyed that any software developer would put such a time bomb in their product. A great way to severely piss off your users. I'm not sure whether the problem starts with Swype or Nokia, but I hope they publish a solution very soon.