Originally Posted by keveinee
Press and hold 2 key volume up and volume down, and plug in your device to your computer machine. if have "download mode" on screen your phone, your device can be cured and if not. If have, i will help you next steps.
Pretty sure that no Samsung phones made in the last couple of years gets into Download Mode like that any more.
OP: You might need a jtag service such as this:
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