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2 Messages

Tue, Mar 22, 2016 3:43 PM

Lumia 640 Windows 10

When will att provide the upgrade from OO 8.1 to 10?




1 Message

4 years ago

Would it be good to go on and reinstall windows 10 on my Lumia 640? I did the 10 install already but wasn't able to share pics, had a hard time sharing anything! In your opinion, should I leave this phone at 8.1 or install 10 again to get the best out of what I have? What is your opinion on the matter?



14 Messages

4 years ago

Sent from my Windows 10 phone

ACE - Master


3.5K Messages

4 years ago

Win10m, hands-down.  


You don't have to do a fresh-install, or at least I wouldn't, initially.  

- Back up everything, using the internal backup app (which will save the data to your Live account)

- Do a full-reset

- At this point, if it were me, I'd do the restore as it resumes from reset, and see if things are fixed.  Worst-case, you reset, a second time.  IME, this will fix it without another reset, at least 90%.

- If it's not fixed, reset again, and then very carefully re-import things, trying to stick to data-only on the restore, to avoid importing the corruption, again.


I set my mom up with a 640 (she was a VERY resistant smartphone-convert, but needed text for some financials), and I gave it to her with Win10m at the outset. She's VERY happy with it, doing things on her phone she never thought possible (texting a LOT, some browsing, occasional emails, managing her contacts and some appointments, etc).

*If this (or another post in this thread) fixes your problem/issue, please mark it as "accept-solution", and I'll tag it, to make it easier for others to find the answer(s). FYI: I'm an AT&T end-user, just like most of us in the forum. Thanks.

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*I am not an AT&T employee, and the views and opinions expressed on this forum are purely my own. Any product claim, statistic, quote, or other representation about a product or service should be verified with the manufacturer, provider, or party.



671 Messages

4 years ago

@Kristi_6 yes, Windows 10. Explain what you mean by having a hard time sharing; could you not figure it out or did it simply not work?


You an Hard Reset your device as suggested. Since I didn't see the steps describe I'll list them for you.


First back up - I suggests you be on Wi-Fi when you do this -

Go to Settings

Update and Security


More Options

Back up now






Reset your phone


During the reseting process, after the gear spinning and you start configuring you'll have the option to restore your backup. I suggests you be on Wi-Fi when you do this.



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