Newbie having problems with installing on Samsung S7, device is not found

Using /e/OS Setup
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38

It exists :

https://community.e.foundation/t/howto-install-e-on-a-samsung-smartphone-with-windows-easily/3186

https://community.e.foundation/t/howto-install-e-on-a-samsung-device-from-a-gnu-linux-pc-successfully/22384

The easy-installer will be a step by step guide