https://forums.whirlpool.net.au/archive/2627746 I had a similar issue - in the end i found this post that pointed me to checking the APN type settings and including a type called dun - this made the hotspot work again. mine was incorrectly set as fun! not sure if the update processed it wrongly or not but now it's fixed - i wish all users could know this - such an awesome phone!
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