[frostschutz]

1. the tar file in your zip is damaged somehow (tar: A lone zero block at 1230).
2. the files have the wrong permissions/properties (missing executable flag for rcS).

This is very likely to have bricked your device.

I don't think tapping works on the H2O (if it works for you, a short youtube tutorial would be great). Factory reset with the pinhole only works with a working, and unmodified, rcS script when you're still seeing the startup squares (by pressing the reset whenever the squares show up, until it shows the factory reset screen instead).