I unnecessarily set myself up for a lot of trouble with the S7582 (Samsung Galaxy Duos) and am now trying to get out of it (but my hopes are dimming).
I installed "Chainfire 3D" on my phone, not realizing that it was meant for Android 2, but not for Android 4. As a result, the phone will not boot anymore now. I tried to recover via ADB, but since I didn't have USB debugging enabled, I am getting an "unauthorized" error message.
Any more ideas? I read somewhere that "authorization" is only necessary with Android 4.2 and up, so I am wondering if I might be able to get my hands on a compatible Android 4.1 version, e.g. for the S7562, but then again I don't want to destroy the phone even further. I am assuming that at this point, wiping it all and returning it to factory settings would still work, but that would still be pretty bad because it would also mean wiping several important phone numbers and some other data which I will not be able to recover otherwise.
Any help/advice would be highly appreciated!