GameShell DOA? No reaction after assembling

Received my GameShell last friday, assembled and tried to charge it but no reaction (no LED blinking or ligthing).
Followed all hints (reassemble, check SD Card, Reset Button, try only display and mainboard connected with usb charger, etc…) found in this board but still nothing happens.

Any further tipps? :frowning:

Have you left it on to charge for a couple of hours? Have you tried another known working battery? I’d try these. If it’s still not working then email to let them know.

If the main board doesn’t respond when plugged into a power source I’d say it’s DOA