I experienced similar this AM on my FT-60 and noted that my speaker/mic was not “completely” plugged into the HT.

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Being partially inserted, but not completed apparently locked the keypad and knobs down from being able to do anything.

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I pushed the plug in and all is OK.

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Maybe similar to your friend’s situation if using a speaker/mic or a earbud, etc., etc..

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73,

??????????????? Nolan Kienitz? KI5IO

??????????????? SKCC - 9532C

??????????????? NAQCC - 6230

??????????????? FISTS - 14948

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