Software update engine failure (error 100)

[Mobile-confusio]

Brand new miro on vodafone and trying to update as notified to do so i constantly get error 100, so can anyone tell me what an error 100 is or means before i lose all my hair. Thanks

[Uliwooly]

try a different computer or use SUS instead of PCC also make sure to disable your firewall and antivirus

[Uliwooly]

Update Service (SUS)

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

http://www-support-downloads.sonymobile.com/Software%20Downloads/Update_Service_Setup-2.11.12.5.exe

PC Companion (PCC)

Bridge (for Mac)

Alternatives on How to backup Xperias

http://talk.sonymobile.com/thread/36355

Don't forget to mark the Correct Answers & Helpful Answers

[Mobile-confusio]

Have done all of the above on four different pc's and get the same error 100, so what is error 100

[Uliwooly]

could you post a screenshot?

[Mobile-confusio]

Screen shot of what the words 'error 100' are a big clue are they not? Update gets half way in last part of 'installing software to phone' and gives error 100?

[Uliwooly]

have you try

1) a different computer?

2) a different computer with SUS NOT PCC but SUS?

3) have you disabled your antivirus and firewall then run SUS?

4) have you unlocked your bootloader?

[Mobile-confusio]

1) yes

2)yes

3)yes

4) Bootloader? and if it invalidates warranty on a phone three days old then no.

[Uliwooly]

how about turn on your wifi then > settings > about phone > software update?

[Mobile-confusio]

Yep tried that too and message in update centre say's  11.0.A.5.8 pc companion required  0.1mb ' you can only use a computer to update your phone' so will not allow update via wifi.