Changing MT4/5 Trading Account Password
You can change your trading account password directly through your MT4 or MT5.
At the top of your MT4/MT5 on your desktop, select Tools > Options > Server > Change > Enter current password > Change master or investor password > Enter your new password and confirm.
If you’re on iOS, follow this:
Tap on Settings (gear icon) > tap on the banner up top of the page with account details > tap the three horizontal dots next to current account > change password > change master password.
On Android, do this:
Tap on the three horizontal bars at the upper left > tap Manage Accounts > tap on the three horizontal dots on the upper right > select Change password.
Both of the steps for mobile MT4 are the same for MT5 on mobile.