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One single experience taught me never to try to fix my own phone.
My S20 had a faulty USB socket and because it was under warranty Samsung sent a technician to my home to fix it.
This chap had been fixing Samsung phones foe four years, had loads of training amd all of the specialist Samsung specific tools...and still ended up breaking two unrelated parts during the disassembly and reassembly. He got it perfect in the end but there was much swearing.
For anyone wondering how this went, new phone is arriving in the next half hour....