Share your experience!
Hi @Aayush_Agarwal, I'm really sorry to hear about that. 
How far do you get in the boot process before it reboots? Do you only get as far as the SONY-logo? Can you try removing the SIM and SD cards, and then booting it again to see if that helps? Let me know how it went!
i can't afford going away from my Xperia. Am ACTUALLY in love with it
So after removing the SIM and SD cards it worked for half a day, and then the behaviour returned? I know you have already tried it, but could you perform another software repair using Xperia Companion?
Hi, i have Xperia M4 dual which i have recently upgraded to android 6. after update it worked fine for one week and now from past 5 days it keeps on restarting again and again. i tried software repair from xperia companion and factory reset option available in phone but these options are not working. and my phone is not in warrenty.
Please help me.
Thanks.
Rahul Pareek
@Rahulpareek, sorry about that. 
Have you tried to see if the same thing occurs without a SIM and SD card inserted? Please try that and let me know how it went!
same happening to me too , this phone and this sony company suckss , no support from the support team .