20 - 30 minutos
My Dads Cell had the problem to only last for 3 hours.
After 50 Minutes for the first repair, my Dads best friend asked me to repair his ones too. So it only took me 25 Minutes for the 2nd one.
If sending to Germany, it'd be great to ask for "EORI" & International Tax Id-Number. If they were already on the package, I'd not have to wait 2 hours at the customs…