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The GPIO pins connect directly into the core of the ARM processer, and are staticsensitive,<br />
so you should avoid touching the pins wherever possible. If you are carrying a<br />
static charge, for example by taking off an acrylic pullover, or walking across a nylon<br />
carpet, touching the GPIO pins could destroy your R-Pi, so always earth yourself before<br />
touching the pins or anything connected to them.<br />
General<br />
The time is incorrect<br />
If the clock is off by a series of hours, in the command line type:<br />
sudo dpkg-reconfigure tzdata<br />
The R-Pi has no real-time clock, so unless it can access a timeserver over the network at<br />
boot, or time is manually entered by the user, the time/date will restart counting from the<br />
last logged time in the previous session.<br />
A part broke off<br />
The silver cylinder near the microUSB power input is a 220 uF capacitor ("C6" on<br />
schematic). It sticks up and due to the small surface-mount pads, it is easy to break off;<br />
several people have done so. This is a power supply filter capacitor which reduces any<br />
noise and spikes on the input +5V power. If you like, you can solder it back on, or just<br />
leave it off. If you do solder it back on, take care to observe the correct polarity with the<br />
black stripe towards the board edge. This part, C6 is a "just in case" component which is<br />
good design practice to include, but as it turns out (http://www.raspberrypi.<strong>org</strong>/phpBB3/<br />
viewtopic.php?f=2&t=4926%7C) most power supplies still work OK without this part<br />
installed. This part is also discussed here (http://elinux.<strong>org</strong>/<br />
<strong>RPi</strong>_Hardware#Capacitor_C6) .<br />
Unable to install new software<br />
When trying to install a software package (using the command sudo apt-get install xxxx)<br />
you may see the error<br />
Package yyyy is not available<br />
This means that your software list is out of date. Before attempting to install software,<br />
you should always make sure that you are using the latest software list by using the<br />
command