Why should you use this way?
If your watch have different internals then the global version like my TicWatch Pro that I bought in China, the watch can install global ROM, but the global ROM don't have NFC support, and it is more lag then before. So I search for days and I found out this way.
TicWatch Pro China Version
Mi Watch China Version
(More device testing coming soon, it should with any WearOS devices with custom recovery project.)
Buy me a coffee if you support my work!
If you are planning to make a video about this and post this mod, please don't do it. As I will be making it soon.