I have recently update the OS and firmware on our beloved Pi B+
We did the following
sudo apt-get update All was ok
sudo apt-get upgrade did reboot and all was ok
sudo rpi-update did reboot now only 3v power gpio pins is working!!!
We use the B+ as a weather monitor and clock so have several sensors and led screens attached all was working before rpi-update but now none work other than one 3v power gpio pin... I STRESS THEY HAVE ALL BEEN WORKING FINE and have been for over a month in the last hardware configuration..
does anyone have any ideas what's happened? why? and how to fix it???