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Fix the *Accessory Update Required* Error on the PAX Terminal {#pax-terminal-install-sw-accessory-update-error}
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The `Accessory Update Required` error appears on the PAX terminal when the installed version of the Android SDK is incompatible with the BroadPOS P2PE version installed on the device.  
To resolve this issue, update the terminal to the latest SDK version. If you need help with the update process, contact [terminals@cybersource.com](mailto:terminals@cybersource.com "").  
For more information about software installation, see [Automatic Installation of Software and Encryption Keys on the PAX Terminal](/docs/cybs/en-us/pax-a77/activation/all/pax-a77/pax-a77/pax-terminal-install-sw-encryp-keys-intro.md ""). For information about BroadPOS device logs, see [Accessing Device Logs on a Test or Debug PAX Terminal](/docs/cybs/en-us/pax-a77/activation/all/pax-a77/pax-a77/pax-terminal-addl-features-intro/pax-terminal-access-device-logs-intro.md "").  
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