issues

[Wim]

Sorry for my bad English.
I have Geeetech unassembled Prusa I3 X 3D printer bought.

The website features the Building Instructions of Geeetech Prusa I3 X.rar

In this manual is a link to an installation video. However, this is different from the assembly manual.
Which is good?

There are also several places different firmware updates, what should I use now.

I also bought the 3DTouch auto leveling sensor.
I'm a day spent without result.

Followed the instructions in the manual

When I boot up the printer using the extruder above the printbed, the light continues to flash

When I boot up the printer using the extruder in addition to printbed, then it works.

The printer starts calibration on 5 points

but starts printing with the extruder about 5 mm above the printbed..

How do I correctly calibrate the sensor?

[Cup]

Modify the Z offset parameter will fix it,you can refer to this:
viewtopic.php?f=27&t=18371&start=20