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'''The following uninstall action is optional, you need execute uninstall action if you meet some questions when you upgrade wirinpi.'''
[[File:UPS3-power-off-guide-1.png|none]]
Before upgrading, you should uninstall the original wiringpi first, uninstall method depend on your installation directory, execute the following command in the installation directory
./build uninstall
sudo apt-get remove wiringpi
sudo apt-get purge wiringpi
hash -r
'''The above uninstall action is optional, you need execute uninstall action if you meet some questions when you upgrade wirinpi.'''
==How to update wirinpi V2.5 to wirinpi 2.52?==