Xperia M5 not updating to marshmallow

[dx1]

I recently tried to update my xperia M5 device to marshmallow through pc companion, the update was downloaded but when I connected my device through the cable then a messge appeared on the screen of my device which read that ''Unfortunately, update service has stopped''. Hence, I just couldn't update my device.

[Hellenas]

Hey,

Did you get any updates so far?

I have the same model but still nothing....

Not to mention that my front camera on Auto mode does not focus and the photos are blurred when taken in the distance....

[Sr14]

How I updated my Xperia m5.. I try more than 10 times but not complete