…NOW COMES THE CRUTIAL STEP !..
- To get out of the Download mode you must Force Power Off your Samsung device,
(on some old devices, unplug the device, on some recent devices it must be plugged,)
hold Volume Down + Power.
release when you see the screen turn off..
At Galaxy S10 you have to press all four buttons to shutdown and restart and then leave the volume down button, when it’s restarting.
…IT IS THE CRUTIAL STEP !..
- immediately Boot to Recovery before any other boot mode attempt,
hold Volume up + Home + Power
release Power when you see the very little blue line in the top of the screen…
…IT WAS THE CRUTIAL STEP !..