esim activation on galaxy watch

[Fahad1]

I bought samsung galaxy watch-6 classic cellular which requires an esim. I was previously using a plastic O2 sim in my samsung mobile. I swapped my sim to an esim and installed that in my samsung watch using its mobile app (galaxy wearable) on the phone. Now the watch has esim and mobile has no sim. When I try to make call or receive call, I get the message that 'only emergency calls can be made' Similarly I am unable to receive or send any sms from my watch. This was my only O2 number which is now installed in the watch. My mobile phone does not support an esim, it only uses plastic sim. My O2 app is showing that esim is active but still its not working on the watch and it can't be transferred back to mobile as it does not support esim. What should I do? Thanks for your advice.

[MI5 · Accepted solution]

@Fahad1 

You need an esim for the watch not from your phone.

Guide: Connecting your Samsung Smartwatch 

Swap the esim back to a plastic one and put it back in your phone, then follow guide too activate the watch.

It's an extra £7 per month.