No, this is not possible.
Why?
It is not opened and it is completely new as I received it.
What is the reason and what is the rule of o2 for sending a mobile phone back?
Du hättest den Vertrag binnen 14 Tagen widerrufen müssen, siehe Widerufsbelehrung in der Auftragsbestätigung.
Diese Frist findet sich in §355 BGB https://dejure.org/gesetze/BGB/355.html
The rule is, that you can send Hardware back within 14 days only.
The rule is, that you can send Hardware back within 14 days only.
And only if you don’t buy the phone in a shop.
Thats are the rules in Germany.
Sell it on eBay if it is new and original in packed. If you pay the phone completely.
Dear @saeedking2020 ,
welcome to our community.
As mentioned above it is not possible to give the phone back, even if it is still in its original packaging.
Thanks to @Sächsin , @Bollermann and @schluej for your support.
Kind regards,
Andrea