LG Bridge doesn't support LG G3? or how to update to 6.0

AV2RY

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Feb 25, 2014
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Hi all! I want to update my wifes LG G3 (D855) to Marshmallow because it started acting up lately, before everything seemed to work fine, now it freezes or works very slow.

I tried that within the phone via settings... which says phone phone is running latest OS
Tried with LG PC Suite which also says same thing. Now I found there's another software that updates LG phones - LG Bridge where I get message saying phone is not supported ...

brigde.PNG

without porting in kdz file is there any other way to update this phone not messing up anything?

Thank you!