Question [Q] [HELP] Can't Install CWM Recovery!! boots into Factory Mode?

Can't boot into DOWNLOAD MODE.
when ever i press [Vol Down+Home+Power] i always land in FACTORY MODE.
i want DOWNLOAD MODE for Installing CWM Recovery or any custom recovery.

please someone help

i have Rooted my mobile via one click quick Root Genius.
But still can't install CWM Recovery or enable DOWNLOAD/ODIN MODE for flashing by rebooting [ Vol down + power + home button (all at the same time) ]

i also get error on TERMINAL APP for efs folder fix Factory Mode because there is NO folder named "efs" or "FolderApp" in root of my Android.

tried ADB. it does detect my phone.
on command "adb reboot download"
it does the simple reboot, Does Not reboot into Download Mode.

my phone specs are:
model: gt-i9082 Grand Duos
Made in Vietnam by Samsung
base-band: ZTAMH1
Android ver: 4.1.2 Original Stock ROOTED (but it says Ice Cream Sandwich when i tap it)
I like stable, good-battery, bare-bone (minimal) ROM for my Android mobile.
I use Go SMS Pro, LG Camera app, Calls & hate running processes.
my current setting:
SD Card: 16gb Class 10