How to change bar signal to numeric signal

H
ow to change signal bar to numeric. We can see on right top screen of device, there is signal with full bar is 5. In BlackBerry we can change to signal numeric, this numeric explain signal strength. This is the trick :

Click and Hold ALT and then type NMLL.

If below -85 dBm is mean that you have good signal


M. Arief Gustianto