Leo had just bought a TECNO Camon 19, and he was fascinated by its sleek design and camera. But one evening, while trying to check his phone’s hidden diagnostic info, he heard a friend mention “secret codes.” Intrigued, Leo decided to explore.
Swipe left/right on the top bar. Use the back button to exit—do not tap "Disable Engineer Mode", or you’ll lock yourself out until a factory reset. How to Use Secret Codes on TECNO Camon 19
: Avoid using codes like *#*#7780#*#* (Factory Reset) or *2767*3855# (Full Reinstall) unless you are prepared to lose all data on your phone . Leo had just bought a TECNO Camon 19,