I was choose BLE.WriteStrings, UTF16=True, but PC-Monitor is received a byte only

I practice to try BLE.WriteStrings, UTF16=True
I send text “abc” via mobile-phone
but PC Monitor is received data a byte per char
What did me mistake to setup ?

Try this code:

Maybe your PC program’s View pulldown can be used to change the display of the incoming data from individual byte values to text?
The individual bytes look reasonable for a short piece of text.