INCH and INCH duo version 5.1
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After reboot you should be presented by System 5.0.1 and Software version 5.1 in Diagnostics menu
IMPORTANT NOTE FOR PAYTER USERS ON INCH DUO:
Install latest inch-system-5.0.1.armv7.itb. If you have already installed system 5.0.1 and app 5.1, app will remain, while system image will be updated.
Release notes:
https://etrelchargingsolutions.atlassian.net/wiki/spaces/Home/pages/2836398134/Firmware+4.0.#5.0
CAUTION: if the charging station uses a mobile connection, please check how much data you have leased in the package. Upgrade system file size is aprox 78 MB. If you have less data available in the package, we recommend a local upgrade otherwise additional costs may be incurred by your mobile provider!
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