Issue with CWM recovery mode I have flashed CWM onto my phone by using Odin as I'm trying to root, but when I boot into recovery mode, it just takes me to the stock recovery mode, and not the CWM version, so I can't install the ZIP. How do I get around this, or boot directly into CWM recovery mode?

I am running a Samsung Galaxy J3 2016 Edition running Android 5.1.1
The bootloader is most likely still locked, detects a recovery tamper then reflashes the stock recovery. 
Try flashing CF-Auto-Root for your device and then flash TWRP and boot into it right as the device is rebooting after Odin's flash. Flash whatever ROM you're looking to install while you're in recovery and it should keep the recovery you have just flashed.