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Changes
[[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?==
sudo dpkg -i wiringpi-latest.deb
Please download [[File:Wiringpi-latest.zip]] and unzip it if you don't visit https://project-downloads.drogon.net/wiringpi-latest.deb
Then run command the following command to check the wirinpi library version
OK, the wirinpi library version is updated to V2.52 now
==Check the power off PIN of UPS 3 board==
[[File:UPS3-power-off-guide-3.png|none]]