How to check for updates

I havent used my brewpi in quite some time now. When I try to connect to the interface via a screen hooked up to my rpi, it freezes the pi. I just wanted to see if there was some sort of update I missed or something.
Also… I dont even know how to update it at all.

I just accessed the interface on my phone and stopped the control and brew all together. (Just turned it on to test my new tv setup above my chamber :smiley:)
The browser now works great on my rpi for some reason… Any ideas why with it running, it freezes up chromium?

Oh boy… Think I messed up…
I tried updating the spark with
cd ~/brewpi-tools

Now after its all done, my spark only shows a white screen… HELP!