Stuck in logo SONY when i was updated to marshmellow
Hi @Sandro18, I am sorry to hear about this.
By the looks of the screenshots you have attached, it seems like your phone is stuck in a boot loop. Primarily i would suggest that you remove the SIM card in order to see if the bootloop persists without a SIM card mounted. If you have a SD card, try taking that out aswell. If the phone starts up as usual without SIM and SD card, the cards may be damaged and needs to be replaced.
If the boot loop persists without SIM and SD cards mounted I would suggest that you try to perform a software repair using a computer and Xperia Companion. Please note though that a software repair will erase all user data.
If none of these measures manages to get you past the boot screen i recommend that you get in contact with your local support team in order to have the phone sent to an authorized service center. If you have any questions regarding the service, such as routines, warranty and consumer laws, these type of questions are best answered by your Local support team as well, as they vary between markets.
Let me know if this helps! 
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