I have a Kestrel Sportsman that I upgraded to a 5700 several years ago. I went to use it Monday when trying g to sight in and get data for a new rifle. When I went to connect it to my phone via the Kestrel Link app it connected then immediately said I need to update the firmware to version 1.75. I am currently running version 1.55. I have tried to update it several times on 2 different phone as well as my tablet. It goes through the entire process then the Kestrel reboots itself. Each time it is still on version 1.55. I sent an email off to Get customer service yesterday but haven't heard back yet. Has anyone else experienced this before?