Only works on Galaxy NOTE 3 Clone/Replica with MT6572 Chipset.
For Engineer mode *#*#889988#*#*
To access the engineer mode on this smartphone, type the above code. You will find much options on this mode.
For Samsung Logo *#8800#
Sometimes when you have just flashed or hard reset the device, the samsung logo and animation will dissapear and will change to default android boot logo and animation. Type this above code on phone keypad, the device will reboot automatically after that. Once the device is UP the logo will back as before.