Awsome guide Andrea. It did perferctly. Mitttttico!!!
JUST ONE REMARK:
My iPhone 4S wi-fi was not grayed out. It could be activated and scan for networks but no any network was found. This solution solved it out. I did Exactly as the guide. While welding keep the nozzle around 1cm form the Murtata chip and in the last minute at the lower temperature (250°) I moved a bit far to reduce any possible thermal shock. This is just a caution. 10 e lode!
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