On locked screen press Emergency Call - type *#899# - now you can see Engineer mode.
Views : 19285
The cookie settings on this website are adjusted to allow all cookies so that you have the
very best experience. If you continue without changing your cookie settings
Change Settings
X
Cookies are very small text files that are stored on your computer when you visit some websites.
We use cookies to ensure that you have the best user experience on our website. You can remove any cookies already stored on your computer, but please be aware that removing some or all of the cookies may cause certain features of our website to become unavailable.