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I have a samsung galaxy A51 it will charge from my computer but not on a wall is there a usb tab in the phone that might have switch to only charge usb how can i fix this issue

Hi @hjubela, Have you tried a different compatible wall charger, you didn’t say? The problem may be with the wall charger since the phone charges OK from a computer. This is assuming that you’re using the same charging cable to connect between the phone and the computer and between the phone and the wall charger.