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Forerunner 955 occasionally went to black screen and not responsive

Hello, 

Did anyone face the similar issue after software update to 12.23 ? 

My 955 solar occasionally went to black screen and not responsive at all (battery was full), unable to hard start as well. 

The only way to activate is connect the cable through USB & PC. (not even work with adaptor !)

Pretty annoying !

It was all good since we bough it last month until the software updated. 

Thank you. 

Jerry