If you are‎ a blackberry user you must be familiar with your phone constantly freezing with the traditional black square in the middle of your screen and a rotating arm. But I have devised a simple way to stop this. First of all wipe all your application and re install to get rid of unwanted data. And then reinstall(not compulsary). From your home screen. Hold down the 'alt' key,while doing that press the keys, one by oneL G L G 

Then a long list should come up named (event log)then click the blackberry button to the left of your trackpad and then go to clear log and restart your phone. This should reduce if not stop the hanging.   



This dosent delete anything from your phone and has been done by a lot of people with 0% complaining.   And it can be done as many times as possible. Click the following link for more info.
https://www.youtube.com/watch?v=t47aXsdE90Y
Source:http://www.scamfender.com/2014/10/how-to-stop-hanging-of-blackberry-os5-7.html

And you think we haven't done all this?

Please how can I stop my Nokia 3310 from hanging