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Samsung A20s network not 🚫 work. This kind of problem fix by network ic replacement

Esu Worku yes, it is absolutely possible that the IC is your issue. Of course you do need to check your antennas etc. as well as the components on your circuit boards to ensure that those are ok. You also want to take a look at videos like this that show possible fixes. Don’t change IC’s just for the sake of changing and hoping it will work.