Software update error code 800728f8f-undable to check updates, how can I fix this?

Bill Harvey1

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Jan 21, 2014
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Software update error code 800728f8f-undable to check updates

Lumia 920, PD Win 8.1.
After trying out Win 10 TP and then rolling back to Win 8.1 PD, I cannot check for phone updates. Keep getting the 800728f8 error. I have checked and re-checked my time/date settings and region. Tried on LTE and on Wi-Fi. Soft resets haven't helped.
Any ideas?
 

krishna T

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Oct 14, 2013
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Re: Software update error code 800728f8f-undable to check updates

Read somewhere: Deleting temporary file (using Storage sense) helped them it seems. You can try and see.
 

Bill Harvey1

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Re: Software update error code 800728f8f-undable to check updates

Thanks, I tried that....0 temp files listed. I have over 20 GB of free space on phone, so I don't think this is an issue.
 

ShadowBlade9050

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Re: Software update error code 800728f8f-undable to check updates

I have the same problem with my 1020 after rolling back from WP 10 TP, i checked my date/time settings and everything is right, maybe i'm going to use the windows phone recovery tool again and re-install the updates
 

Mike Newport

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Re: Software update error code 800728f8f-undable to check updates

Lumia 920, PD Win 8.1.
After trying out Win 10 TP and then rolling back to Win 8.1 PD, I cannot check for phone updates. Keep getting the 800728f8 error. I have checked and re-checked my time/date settings and region. Tried on LTE and on Wi-Fi. Soft resets haven't helped.
Any ideas?

I actually had the same exact scenario happen to my on my Lumia 1020 , researched for hours tried many clock things, finally backed up all my apps and settings and did a hard reset, when it came back up I had clock on automatic and then I set my own apn instead of the tmobile apn(Same exact apn, I just put it in manually)After I uninstalled pfd then reinstalled it ,and boom it worked like a charm, not sure which part actually helped fix it but one of those steps solved my issue.
 

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