[/e/OS installer on Fairphone 6] "Allow USB debugging?" popup doesn't appear

[piero]

i hope it can help in the future.

@piero

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in 3 copy / paste actions !

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because even well illustrated, the “web-installer” often don’t work,

and because the official documentation is imbuvable.

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here we take the Fairphone 6 as example,
but it is the same logical and quite the same process for all the devices that have :

• only "IMG-e-xxxxxxxxxxx.zip" file on their download page,
• no "recovery-e-xxxxxxxxxx.img" file on their download page,
• no "recovery-IMG-e-xxxxxxxxxx.zip" file on their download page,
• that contains an install script named like flash_FP6_factory.sh.