After completing installation of CM12 in my Xperia M C1904 , I found that there is no signal capturing by the device,but some times it does. I doubt it is be the issue with baseband . So i had a try installing zip file containing modem.img according to the post http://forum.xda-developers.com/showthread.php?t=2703161
But it is not installing ,showing an error in the screen like this
E:footer is wrong E:signature verification failed
I did this in the cyanogen recovery since after the cm12 installation I'm unable to get into cwm recovery. Is there any probable way to fix this issue?
thanks in advance