Question Motherboard/CPU issue

[GetOffline]

Motherboard: Ryzen B350 DDR4 VR Ready HDMI USB 3 ATX Motherboard (B350 Gaming Plus)
CPU: Ryzen 5 3600
GPU: Rx 480
When I installed my cpu into my motherboard nothing would show up on my monitor, but my computer was on. There was a red light on my motherboard and I have been told that I have to update my BIOS. I am not sure how to do this any help would be appreciated.
Update: I got a boot kit from amd to update my bios, but when I installed the cpu there was still a red light on my motherboard and nothing shows up on my monitor. Not sure what to do please help.

 

[gingerrankin]

You do not tell us what GPU you have. Remember that you need a GPU because this CPU has no built-in graphics.

 

[GetOffline]

You do not tell us what GPU you have. Remember that you need a GPU because this CPU has no built-in graphics.

Sorry I forgot, but my gpu is the rx 480

 

[Ketchup79]

Once you insert the boot kit CPU, activate the cmos reset and see if it will boot.
If still not, what power supply do you have?

 

[GetOffline]

Once you insert the boot kit CPU, activate the cmos reset and see if it will boot.
If still not, what power supply do you have?

I reset the CMOS battery and nothing happened. My psu is the thermaltake TR2 700w

 

[gingerrankin]

There are 4 EZ Debug LEDs in your mobo. Which one turns on?

EZ Debug LEDs
These LEDs indicate the status of key components during booting process. When an
error is occurred, the corresponding LED stays lit until the problem is solved.
CPU - indicates CPU is not detected or fail.
DRAM - indicates DRAM is not detected or fail.
VGA - indicates GPU is not detected or fail.
BOOT - indicates the booting device is not detected or fail.