Can’t sync my HomePod and don’t have code

Ok. 

Plug it in now to prepare for a reset 

Now you need to reset it back to factory settings.

https://support.apple.com/en-ca/HT208244

1. Unplug HomePod, wait 5 seconds, then plug it back in.
2. Wait 5 seconds, then touch your finger to the top of HomePod and hold it there.
3. The white spinning light will turn red. Keep your finger down. 
4. Siri will say that your HomePod is about to reset. When you hear three beeps, you can lift your finger.

IMPORTANT-  If you still see HomePod in the Home app after you reset it, then you'll need to manually remove it from the Home app.

Now proceed  with set up as explained in my first reply 

HomePod has no code to use.

Just proceed with set up again and it will self install in the Home App with your iOS device placed beside it (set up screens will be in the iOS device)

Get started

• Make sure that your iPhone, iPad, or iPod touch is updated to the latest version of iOS.
• On the iOS device that you use to set up HomePod, make sure that you signed in to iCloud with your Apple ID and turned on iCloud Keychain. You also need to have two-factor authentication set up for your Apple ID.
• Make sure that your iOS device has Bluetooth turned on and is connected to your home Wi-Fi network.*
• Make sure that the Home app and Apple Music app are installed on your iOS device. If you deleted either of these apps, go to the App Store and redownload them.

Then follow the instructions here:

https://support.apple.com/en-ca/HT208241

Did you manually remove it from the Home app.?

So you can start from scratch on the set up,

Maybe Reset Network settings on your phone before the set up. In case it’s an issue with your phone.

In settings - General - Reset - you will need to re- enter your wifi password after your phone restarts

Note:

• if you’ve not used this HomePod for awhile, it’s in need of a software update to 12.2, as is your iOS device you’re using to set it up
• Refer to the Get Started instructions above to be sure everything is set to sync.

• After you get it all set up. Go into the home app to see if its on 12.2

Update HomePod Instructions:

https://support.apple.com/en-ca/HT208247

Hi, I'm with the same problem with sync but I tried all this steps and it didn't worked. I tried to reset the HomePod and after red light nothing more happends. No siri, no beeps. What more can I try?

Not yet! Is there something more I can do?

No Siri?

perhaps you’re having trouble with your wifi modem? unplug that for a minute to reboot it, before the next instructions - YOU NEED WIFI TO SET IT UP!

• Make sure that your IOS Device has Bluetooth turned on and is connected to your home Wi-Fi network.*

• Unplug HomePod and plug it back in and set up again .

follow the instructions here:

https://support.apple.com/en-ca/HT208241

Be sure to do all the “Get Started”