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SOLVED - Can't connect phone to laptop for file transfer

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Tone111:
Hi all,
I seem to have a bit of a problem connecting my phones (wired via USB) to my W8.1 laptop to back up my old one and transfer my data etc to my new one. It's not the cable or the phones, as they both connect to my W7 desktop just fine, but this has limited hard drive space and my laptop has loads.

I'm not sure how long this has been an issue as I haven't backed it up to this machine before, but it didn't use to be if I ever connected it to charge it, though I haven't tried it for a while..  :undecided:

I've had a little google and play around but no joy with anything so far - the device manager is showing some yellow triangles under 'Other Devices' but uninstalilng and reinstalling and also trying to update driver software both fail with errors so I'm at a bit of a loss on those!  :confused:

Also I've installed Sony PC Companion to help backup all my old phone data (rather than do it manually in file explorer) and this tells me it needs an update to be able to run, then fails to update when pressed with an unspecified 'Installation error' which then closes the program!  :omg: Not having much joy in any department right now - any of you learned folks have any ideas?...

Boggin:
You can free up a few GBs of space by turning Hibernate off with this cmd from a Command Prompt (Admin)

powercfg -h off

To turn it back on again, change off to on

In Device Manager click on View/Show hidden devices and post a pic either using PRTSC and Paint or with the Snipping tool so I can have a look at those alerts etc.

Expand if possible anything that has a yellow alert.

Tone111:
Hi again Boggin, long time no see!

Hibernate is already turned off on my desktop - it's on on my laptop but space isn't an issue on this...

I've attached a snip of the device manager Other Devices - the top one is my new phone which is connected to the USB but won't show in Explorer and won't charge, though it does make a noise when I plug the cable in so something is happening.
The one below is my old phone which also won't connect, although both used to do
The RNDIS and the Unknown ones I have no idea about and don't think they're anything to do with the phone issue, unless you want me to dig more on those..

There's nothing more I can actually expand as such in devman, but I can expand other items in the tree or look at the ones mentioned in more detail if required, just let me know.
Thanks

Boggin:
You usually get Unknown Device when another has driver problems and there may be alerts in USB Controllers, but right click on each of the unknown devices and select Properties.

Under the Details tab use the dropdown to select Hardware Ids where its driver will be highlighted.

Right click on that and select Copy where you can paste that into a Google search to ID what it is, which may also find a driver for you, or you can paste those into your reply and we both can have a search.

Downloading the driver for the C6903 may help with that one -
https://developer.sonymobile.com/downloads/drivers/xperia-z1-c6902-c6903-c6906-c6943-driver/

Tone111:
Ok, so I checked the whole of the devman tree and the only other yellow triangle was in USB controllers (see attached) - I tried updating this online but it said the best software was already installed.  :rolleyes: [further amendment - since removing the C6903 from devman this triangle has vanished and now there are none except in Other Devices!]

The hardware IDs for the Unknown devices just gave a load of numbers and letters which meant nothing to me - when I tried to update them online however they all errored with the same 'The data is invalid' message  with following descriptions "Microsoft Streaming Service Proxy", "WAN Miniport (SSTP)", and "Microsoft Streaming Tee/Sink-to-Sink Converter" for the bottom 2. The RNDIS also errored with this message and description "Remote NDIS based Internet Sharing Device". Not sure if I need any or all of these but they all say they're not configured correctly and the 2 grey ones aren't connected either so I'll leave all those for now..

I downloaded the drivers from Sony for both phones, unpacked them and tried to update them manually from the correct folders but both said they 'could not find driver software for your device'!  :teeth: I tried online again but both gave the same "data is invalid" message - attached. The newer phone also gave the following error popup message on my laptop (attached) saying Windows didn't recognise the device - spiffing!  :angry:

I also tried uninstalling the C6903 from devman, thinking it would reinstall when I reconnected it, but it didn't and now I have nothing showing for the new one and still the same damn error message!   :omg: [- amendment - the C6903 device has since reappeared in devman but still with the yellow triangle and same error]

The old phone is charging through the USB connector but doesn't show up in file explorer, the new one does neither, but does make the same noise when I connect it, then gives me the error above. Getting nowhere fast here, anything else I can do?  :blank:

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