It also works for me when calling *#*#4636#*#*, although as my knowledge in Android development & roms is limited I'm not sure how it's related to Android API internal calls.
Yes that's the how I spotted the problem, I trusted Tower Collector's developer when he said there is an issue with my rom's Android API 4.2 after seeing my app's log. But I don't really know anything more...@bonswouar
Is it because the signal strength is not displayed in Tower Collector ?
Just enter In Dialer App *#*#4636#*#* and then on phone information
There you will also see the signal strength
Except that the signal strength is not displayed, the rest works.
So do not understand your problem.
Is there anything I can tell him to find out what's going on?