Hey guys, I'm sorry if this is a very stupid question, but I've searched EVERYWHERE. I'm stuck on version 1.07 (see attached screenshot) and cant' seem to update to any other firmware, I've downloaded many of the 2.0x versions and it constantly gives me the error "Invalid file format." All the formats I've been using having been .bin, is there something I'm missing? I really hope someone can help me out here. My Router is the DIR-850L version B.
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Thank you so much!