Can't update Apple Watch without first updating iPhone
I was using iPhone 7 plus - IOS 11.2.1 and Apple Watch series 1 - watchOS 4.2.3 and everything was fine. Today, I updated my phone to IOS 13.4.1 as a new device, so I lost pairing between my devices. Now when I try to pair, it tells me that i need to update my watch, that's OK, but when i click to update it tells gives me error saying: "to update the software on your apple watch you first need to update the software on your iPhone". My IOS is already the latest version, so I am stuck. I also checked that my device is supported with latest update. (as far as i know i am not able to select OS version for watch but still confirmed that i should be able to upgrade.)
Here are the things I tried:
- Put my phone to DFU mode and installed IOS 13.4.1 again. not solved. Still says i need to update my phone in order to update my watch.
- Tried to reset my watch to factory settings. not solved.
- Tried to turn off on on both devices multiple times. not solved.
- Tried to pair manually and automatically. none of them worked.
- Tried to fully charge both devices. Tried to update and pair while charging and not charging.
any ideas to solve my problem?
thank you in advance.
[Re-Titled by Moderator]
Apple Watch, watchOS 4