Very interesting: I did another test. The scenario is like that.
1. I use my mum's iphone6Plus to test on her iCloud account. That's no problem. I can create and update from her iPhone to iCloud or iCloud to her device. This is totally fine as usual as before. So, I assume her iCloud account is working normal in the server side.
2. Then, I use my iPhone7Plus and sign in with her account. I tried to create a new note but this time is not going to sync to iCloud. Only a new created note from iCloud to my iPhone. That's having the same issue as what we have been experiencing.
So, this issue isn't from the account itself. BUT, if I conclude this is from my iphone7Plus device, I don't think it makes sense. As this issue happens to my other devices(iMac, iPad and my old iphone6). I even tried to setup my iphone7Plus as a brand new iPhone. However, it still won't work. And this is very rarely all of my devices can have the same issues at the same time.
I just wonder if you have any ideas of this testing result. Would anyone think about "Virus" this term?
I almost totally have given up for the testing and troubleshoot. Hope this test can inspire any of us here to give out some new ideas...
1. I use my mum's iphone6Plus to test on her iCloud account. That's no problem. I can create and update from her iPhone to iCloud or iCloud to her device. This is totally fine as usual as before. So, I assume her iCloud account is working normal in the server side.
2. Then, I use my iPhone7Plus and sign in with her account. I tried to create a new note but this time is not going to sync to iCloud. Only a new created note from iCloud to my iPhone. That's having the same issue as what we have been experiencing.
So, this issue isn't from the account itself. BUT, if I conclude this is from my iphone7Plus device, I don't think it makes sense. As this issue happens to my other devices(iMac, iPad and my old iphone6). I even tried to setup my iphone7Plus as a brand new iPhone. However, it still won't work. And this is very rarely all of my devices can have the same issues at the same time.
I just wonder if you have any ideas of this testing result. Would anyone think about "Virus" this term?
I almost totally have given up for the testing and troubleshoot. Hope this test can inspire any of us here to give out some new ideas...