My Sony Xperia Z1 cannot update due to Sony update engine failure (error 100)

[Z1user]

Why My Z1 cannot been update to the latest system (14.1.G.2.257) when I was updating its shows a Sony update engine failure (error 100) and My internet was good,My firewall is not blocking it.... pls give me a way to correct it as soon as possible 

[gwhispererz · Accepted solution]

Hi, did you try both PC Companion and Update Service?

http://www.sonymobile.com/gb/tools/pc-companion/

http://www.sonymobile.com/gb/tools/update-service/

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[8-]

I am from India,

I go the Kitkat updated and I am trying to update the phone from yesterday from 3 different computers and when the update is downloaded upto 98% it gives an error that the download failed and please check the internet connection.I have tried the PC companinan and the update service.

Please suggest?

[gwhispererz]

Reinstall PC Companion and Update Service, then update again. If possible, try updating with a different Wi-Fi network.

[reithe]

me too ............

i am in FRANCE and for 3 days cannot update to 4.4 : "the server is not accessible" from my SONY PC COMPANION ...

WHAT4S THE MATTER ???

[gwhispererz]

Hi Reith, try Update Service. Here's the link, http://www.sonymobile.com/gb/tools/update-service/