I have a working data connection on cellular: syncing, downloads and all such matters work just fine. But the connection indicator in the notification shade toggles will not turn orange. If I put the device into airplane mode, then exit airplane mode, it's orange for approximately 5 seconds and reverts to the white state.
If I enable WiFi, the same issue occurs: orange for a few seconds, then reverts to white.
I am no beginner. I've modded hundreds of devices. I know the OS like the back of my hand. I've rescued dozens of devices by jtag. I cannot state strongly enough how many troubleshooting steps I've taken. If it was on Google or XDA, I've tried it: verified APN settings, cleared services framework, go back to stock, try a new ROM, try a new modem, try a new kernel, airplane mode and back, swap SIMs, etc. etc. etc.
I am here because I am hoping the collective wisdom, as a last resort, can solve this problem. How does the same issue persist on both cellular and wifi data?!
And while we're at it, does anyone know why my Nexus 4 doesn't exceed 0.6Mbps on 5GHZ 802.11n?