Re: can i upgrade to windows 10 on my lumia 640
The official updates are supposed to roll out at the end of february, but not all phones will receive the update immediately.
It depends on: region/network operator/phone build.
If you're not willing to wait, v535's option of joining the insider program will ensure that you get the update sooner rather than later. I would like to point out that while the current build that is out (.107) is very stable for most, there have been a few reports of things not going so well. Keep this in mind, when you make your decision.
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