Vehicle Mode Stopped Working after Root and Flash

[HowD]

Howdy, all.

I have a Droid RAZR (XT912) that used to recognize my vehicle dock as well as my desktop dock. I'd put the phone in the dock and the vehicle mode would automatically start; same for desktop.

I had flashed the RAZR, installed various ROMs, and noticed that the dock modes did not work. "Did not work" means that the phone would not change modes at all; it would show that it was charging but no change in mode. I have since used fastboot to flash the phone back to "factory new" state. However, the phone still does not recognize that it is docked.

Is there any way to "jump start" the vehicle mode--perhaps I'm missing some file or factory app? I don't want to use a 3rd party app--I want my phone to work the way it used to. (I know, I know...then I shouldn't have messed with it...shame on me.)

Any ideas are much appreciated.

Phone info is as follows:
System version:
98.72.16.XT912.Verizon.en.US

Model number:
DROID RAZR

Android version:
4.1.2

Baseband version:
CDMA_N_05.21.00R LTEDC_U_09.1D.00

Webtop version:
wt-3.0.0

Kernel version:
3.0.8-gbacb1cf
hudsoncm@il93lnxdroid80 #1
SMP PREEMPT Fri Feb 1 20:59:31 CST 2013

Build number
9.8.20-72_VZW-16

Build date:
Fri Feb 1 20:37:25 CST 2013

 

[mOOky8D]

I noticed the same thing after flashing the Safestrap recovery and the latest stable CM10.1 ROM. It's a bit annoying, but I use the Car Mode Control toggle that you can get from IG88 (link to Google Play store app here: https://forums.androidcentral.com/e...tails?id=net.cwfk.ig88.carmode&token=M1JbND0X ). After I dock in the car, I just tap the app shortcut on my tray and boom, car mode. The Llama app takes care of configuring sound/bluetooth/etc. for me. Works as a only-slightly-annoying workaround until the xda community figures out how to get native Motorola dock controls working out of the box in the custom ROMs. Almost wants me to re-learn some coding skills and contribute.