I lost both sims (it is a dual sim, USA spec Fold 4) why?

Sim 2 died first, then Sim 1, with Sim i'm referring to the mainboard not recognizing the sim cards. Had to resort to using an eSIM which saved the day and the phone, has anyone been through this? oh and btw Samsung said it has no repair

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crwdns2889612:0crwdne2889612:0 1
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