skr e3 v.20 and bltouch 3.1 – not powering up -with fw bltouch zprobe blue light

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    lvumcas
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    Hi I need your help.
    I have a ender 3 pro with skr e3 v 2.0. I bought bltouch 3.1 and followed instruction in connecting cables to socket from left to right white black, yellow, red and brown.

    Downloaded fw from github, simple bltouch, renamed, updated … nothing the menu appears but bltouch is powered of.
    I tested the cable for continuity and is ok.

    I then tried to connect to z probe using the connection of white and black cable to zprobe and leaving yellow, red and brown to socket. changed firmware using bltouch as z probe and… on the board of bltouch a blue led lights but nothing else.

    I desume that could be a problem on the socket of skr e3 v.2.0 related to 5v at least since it do not powers up at all.

    Any suggestion?

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