My phone screen went black and never turns on again even if I replace
my phone screen went black and wont turn on again even if I replace a new screen it still wont display on the screen
Samuel Tuckwell like @strongbow previously commented, it will help if you can provide us with a bit more information. This could be a video circuitry issue or a backlight issue. At least you can start with some troubleshooting according to the flowchart
To determine where the components are on your board open this file Samsung A12 Comp Placement and use the search function of your reader. Some of the components are on the Sub_Par board and there are no schematics for it. You may want to consider replacing that as well if you can't get any further.
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