Samsung Galaxy Ace Duos I589 Unbrick – dead boot repair supported

Repairing
bricked Samsung I589 is easy with the RIFF Box. Phone is auto powered
when USB Data Cable is inserted while battery is inside. If you don’t
use USB cable, make sure to hold Power On button during JTAG connection
establishing phase.

To resurrect Samsung I589 do this:

•  Solder JTAG cable to Samsung I589 JTAG pads;


•  Insert battery and connect USB cable to phone and PC;


•  Make sure Samsung I589 is selected in the list of models;


•  Click Resurrect button;


•  Wait few seconds until software signals a successful operation completion;


•  Disconnect USB cable, de-solder JTAG wires;

Now
phone is in bootable condition, that is, even if it does not start up
normally, you can flash it using original Samsung downloader software to
restore it to the working state.
.