Help tablet cannot boot to download mode only recovery menu

[johnnyutahh]

Hey guys,
Having some issues with my tablet s2 10.1.

model GT-5100
android ver- 4.0.3
Kernel- 3.0.8-546364-userdp@DELL170 #1
Build- IML74K.P5100XWAL3

my issue is not being able to boot to download mode if i want to use odin etc... When i try to attempt to boot to download mode it brings up the CWM recovery menu.

Any ideas why? im all new to this so any help would be appreciated.

thanks