The phone is doing what i call a "self check" where it will check itself before turning on, and if its broken or damaged (cosmetically or internally) , it will only flash and then turn off.
or there may be something wrong the screen, as @strongbow said, but a way to check if it is working or not is to plug it into a computer (idk if it will work with a samsung, but it works with ipods,iphones, and ipads with the same problem, so it doesn't hurt to try.) and if the computer notices something plugged in, it is a screen issue and needs a lcd replacement and/or digitizer replacement. if the computer doesn't notice ANY device plugged in, it more than likely doesn't work.
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I also agree with @strongbow on the warranty thing, as it saves time and money.
The phone is doing what i call a "self check" where it will check itself before turning on, and if its broken or damaged (cosmetically or internally) , it will only flash and then turn off.
or there may be something wrong the screen, as @strongbow said, but a way to check if it is working or not is to plug it into a computer (idk if it will work with a samsung, but it works with ipods,iphones, and ipads with the same problem, so it doesn't hurt to try.) and if the computer notices something plugged in, it is a screen issue and needs a lcd replacement and/or digitizer replacement. if the computer doesn't notice ANY device plugged in, it more than likely doesn't work.