Help/Support Mobile Legends create new account

[Yazan2020 2 iPhone 6 10.2]

I'm using iPhone 6 iOS 10.2 jailbroken 

I tried reinstalling the game,signed out from game center(my account isn't even bounded) to remove my current account and create new one but it didn't work ,the game automatically logged in to my account

I tried these tweaks: Apps Manager(cleared cache and game data)didn't work ,icon tools didn't work, slices didn't work , icleaner pro didn't work too.

I tried deleting the game keychain and It didn't work.

I tried installing the game using different apple id ,didn't work.

I have an iPhone 4s I could create new account after restoring the device but the game always crashes on tutorial,So this means that the account was saved on my device but i don't where it's saved and how to remove it

Updated August 10, 2017 by Yazan2020

[renzairtsua 1 iPhone Xr 14.5.1]

Same here. I hope someone could help us with this.