Step 2 didn't do anything for me at all..the numbers just stayed on screen. Even pressed dial to see if that would work and had a message invalid MMI or something. Step 3 worked though, and updated the firmware, but not sure how a touch screen firmware would work to help data and wifi issues? Im on O2 in the UK. I get 1-2mbps download speeds on mobile data, and 0.5-1mbps upload speeds. And wifi tends to be half what my pc and s5e tablet get.
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