How to delete one's region in WeChat? In the Android WeChat messaging app, it is possible to set up a region in one's account settings (Me -> tap user name -> Region). This region setting is then shown to all contacts in one's profile.

However, once that is done, there does not appear to be an obvious way to unset the region again.

I would like to remove my region setting from my account. How can I do that?
I am a Chinese user and I'm extremely sure that:

You cannot unset your Region settings in WeChat. You can only change it by repeating the procedure in which you set it.

Edit: From Chinese BBSs people claim that they succeeded by using an exploit of incompatibility between older and newer versions of WeChat. Their procedure is


Install an old enough version of WeChat (They picked 4.2)
Change your region settings to anything else
Install a newer version of WeChat (They picked 5.2)
Due to incompatibility the region is blank


Do note that the posts I've found are in 2015 and even 2014. I'm note sure if WeChat's server still accepts versions other than 6.x