Is it possible to install windows 8.1 on Microsoft lumia 550?

No its not possible... Be patient in few updates it'll start working like 8.1... N I must say we're almost there after 10586.36!
 
a year later, and lumia550 is still ****. i hate it, and would get back my 630 in no time.
 
Strange. My experience with Lumia 550 was pretty good with the Windows 10 Anniversary Update.
 
Strange. My experience with Lumia 550 was pretty good with the Windows 10 Anniversary Update.
It varies widely between users still.
Well if that guy wants to switch his 550 for my 635 I won't say no! ;)
 

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