[Q] Can only boot to custom recovery via ROm Manager topic

HI

I have the i9505 samsung s4.

I managed to root it via odin, and flashed the Team win recovery as part of the process. I downloaded root checker and it shows that the device is rooted.

However, when i turn the device off and then try and boot to the custom recover I am finding it impossible.

I hold the volume down, home key then press the power button and keep them pressed. THe phone keeps going to the odin download mode and no further etc. However, I can get to the custom recovery via rom manager. What am i doing wrong??

Using rom manager is fine, however if something goes wrong during a custom rom flash then i will need to use the buttons to boot to custom recovery

Please help

Manny