Z2 restarts after update

[Flexy]

My Xperia z2 keeps restarting after the new update. Help pls.

[Christy_Tsang]

Hi Cameron, even if I remove all my SD and SIM card, it still restarting over and over again.

It will load up until to the SONY page and then the purple page and then after 2 second it will switch off and restart again even I have no SD or SIM card in there