Zuk z2 bootloop

Jul 6, 2019
Hi this Is Valerio from Italy.
I'm facing a new issue with my zuk z2 pro. I was using my phone normally. I didn't install any new app or upgrade of any kind. After I switched off my mobile restarting it's stuck on zuk logo and instead of charging os It won't boot and recharges zuk logo. It makes me wonder to a softbrick or bootloop but I can't understand why. Could It Be a software or hardware issue? I Need desperatly datas. Is there any way to start os?
Thanks in Advance.