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Which Android phones are stable

My Samsung S9+ loses Connection to the RC quite frequently. About every 5 ot 6 flights. Aircraft Disconnected message in DJIGo4. RC is still connected to Mavic, so no major issue. Annoying part is no amount of killing apps or reconnecting USB C lead re-establishes the connection. Only fix I can find is to power cycle the remoter Controller which fixes it every time. This of course initiates an unwanted RTH. So usually I fly all the way home first using RC screen, land, power cycle RC, get DJIGo4 back and head off again. Annoying because my Samsung S7edge, which the S9+ replaced was rock solid.
After the "disconnect" removing and reconnecting the USB lead does not result in the phone recognising the RC as an associated device with the flying app prompt. However as soon as I power cycle the RC it does. So this may be a clue as to what is going on?
 
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