New Z5 will not update to 7.1.1 or software repair to update

[HLB1]

I have last week purchased a brand new Sony Xperia Z5 Compact (I know, late to the party, but I wanted a small phone) and am having problems with software update. The update downloads but will not install and I am getting repeated messages that an update is due – when I try to install (full battery, stable wi-fi etc.) I am told the update could not be installed.

I have installed Xperia Companion on my pc and tried to update this route. It initially tells me ‘Your Xperia is already running the latest software available’.

I have therefore run the software repair option. This also ends up the error message

'Software repair error. An error occurred while repairing your device'

 Error info: UEGetPhoneInfoMissingInfo

I have factory reset the phone and retried all with the same error messages. The difference this time being that when I try and install the update from the phone, the phone is off for only a very short time, less than a minute, before coming back to tell me the update has failed whereas before it was taking a sensible amount of time to at least try and install. I have tried to clear data in the software update app as advised.

Returning to try and update through Companion I am using the Sony supplied cable; ensuring all other programs are closed whilst running the repair; I have tried uninstalling and reinstalling Companion; tried using Companion installed on a different computer but to no avail.

On the second computer the error message is also 'Software repair error' but the error ref is UEStartNoMorePorts

• Model no: E5823
• Android version: 7.0
• Android security patch level: 1 March 2017
• Build number: 32.3.A.2.33
• Software version: 32.3.A.2.33

If any other info required let me know

It would be great to know how to fix this, I don;t want to give up on the phone yet as there are a lot of things I like about it but it is very frustrating with a new phone

Thanks

[Uliwooly]

@HLB1 

That's rather odd, what if you update JAVA 

[HLB1]

Thank you for your advice

I updated Java after uninstalling all old versions, then uninstalled and reinstalled Companion again

I am getting the same messages ie Software Update - your phone is up to date and Software Repair - error, an error occurred whilst repairing your device with the same code UEGetPhoneInfoMissingInfo

The difference now is that the device itself turns off as soon as Software Repair launches 

I therefore tried the device off route where you cannot switch on the device holding the volume down key and then connecting whilst switched off but receive the same error message

I understand there are a few issues for z5 users with 7.1.1 so wouldn't mind not installing it, if there was a way to switch off the endless notifications about an update

Thank you for responding

[Tengiz]

I have same problem of update and repair. Also NFC option doesn't switch on and work.

[Tengiz]

I think you need a new firmware.

[Tengiz]

Well it is very laborious for me and I should not do it.

[tiger7]

I just received a new z5c but it's a prototype, so applications and updates may be rejected by the sony software. Go to About Phone - Usage info settings,  If its a prototype it will say here ( no option to turn off). Notifications can be modified or turned off for individual apps,  go to Settings - Notifications.