[Q] Cant enter download mode

Hi Guys

I flashed my phone awhile bk with XXELLB/A off sammobile. I have now decided to root my s3. I hold Home,Vol + then power., it enter recovery mode, not download mode and therefore odin isnt picking my phone up. If i boot into android connect my phone up, Odin picks it up etc but obviously am unable to do anything further.


Any suggestions as to what i can do?:crying: