[Motorola Droid RAZR] kingvandal:
Awhile back I noticed my droid razr maxx would reboot randomly. Figured I would check it out later. In the mean time I dropped the phone and cracked the screen but still worked. Bought new screen and replaced it. Works great. Still had the random reboot issue though. So at that point I believe I was on the stock rom still. I read some suggestions about resetting to factory and wiping cache partition. Did that and no help. Only now it is worse at rebooting, every 2 minutes. So I flashed back to the stock rom just in case. Same results. Now I have noticed the signal meter has a round red circle with a line through it like a stop sign and the SIM would randomly be not recognized. Bought new SIM and installed it with same results. So I then flashed over to ICS 4.0.4. Now my sim does not stop responding but the meter is still blocked and the reboots are still there. I realize I cannot flash back to stock anymore and I am OK with that. I have also read about the Air Plane mode trick but that did not work. Previous I was rooted. On new ICS I was not rooted and on clean build with NO apps except for stock stuff. I figured maybe it had something to do with being rooted. So I re-rooted the phone with DroidRazrUtility1.7forICS which includes option to root 4.0.3 and 4.0.4. It said it was successful. Still reboots though.

I have logs from the phone running up until it crashes. I can insert the entire log but not attach it (TO BIG).

Snippet that I found:

09-19 08:10:18.668 629 629 I AtCmdDelegate: handle message:1
09-19 08:10:18.668 629 922 D NetworkService: handle message:1000
09-19 08:10:22.886 629 2611 I System : Failed to destroy process 2612
09-19 08:10:22.886 629 2611 I System : libcore.io.ErrnoException: kill failed: ESRCH (No such process)
09-19 08:10:22.886 629 2611 I System :	at libcore.io.Posix.kill(Native Method)
09-19 08:10:22.886 629 2611 I System :	at libcore.io.ForwardingOs.kill(ForwardingOs.java:77)
09-19 08:10:22.886 629 2611 I System :	at java.lang.ProcessManager$ProcessImpl.destroy(ProcessManager.java:257)
09-19 08:10:22.886 629 2611 I System :	at com.motorola.modempanicreporter.ModemPanicReporterService.getLogs(ModemPanicReporterService.java:210)
09-19 08:10:22.886 629 2611 I System :	at com.motorola.modempanicreporter.ModemPanicReporterService.access$200(ModemPanicReporterService.java:21)
09-19 08:10:22.886 629 2611 I System :	at com.motorola.modempanicreporter.ModemPanicReporterService$2.run(ModemPanicReporterService.java:144)
09-19 08:10:22.972 629 2611 I System : Failed to destroy process 2613
09-19 08:10:22.972 629 2611 I System : libcore.io.ErrnoException: kill failed: ESRCH (No such process)
09-19 08:10:22.972 629 2611 I System :	at libcore.io.Posix.kill(Native Method)
09-19 08:10:22.972 629 2611 I System :	at libcore.io.ForwardingOs.kill(ForwardingOs.java:77)
09-19 08:10:22.972 629 2611 I System :	at java.lang.ProcessManager$ProcessImpl.destroy(ProcessManager.java:257)
09-19 08:10:22.972 629 2611 I System :	at com.motorola.modempanicreporter.ModemPanicReporterService.getLogs(ModemPanicReporterService.java:210)
09-19 08:10:22.972 629 2611 I System :	at com.motorola.modempanicreporter.ModemPanicReporterService.access$200(ModemPanicReporterService.java:21)
09-19 08:10:22.972 629 2611 I System :	at com.motorola.modempanicreporter.ModemPanicReporterService$2.run(ModemPanicReporterService.java:145)
09-19 08:10:22.972 629 2611 I ModemPanicReporter: Copying /data/panicreports/qril_critical4.log and add logs to DropBox (MODEM_CRITICAL_PANIC)
09-19 08:10:27.738 2567 2595 E NetlinkEvent: NetlinkEvent::FindParam(): Parameter 'MDM_SHUTDOWN' not found

And also at the very end of the log:
09-19 08:10:29.535 1008 1008 D ModemStatsReceiver: receive intent android.intent.action.SIM_STATE_CHANGED
09-19 08:10:29.543 2366 2623 D CmasReceiverService: handleSimStateChanged: sim state = IMSI
09-19 08:10:29.543 2366 2623 D CmasReceiverService: handleSimStateChanged returning
09-19 08:10:31.777 2567 2595 E NetlinkEvent: NetlinkEvent::FindParam(): Parameter 'MDM_SHUTDOWN' not found
09-19 08:10:31.832 2567 2595 E NetlinkEvent: NetlinkEvent::FindParam(): Parameter 'MDM_SHUTDOWN' not found
09-19 08:10:31.840 2567 2595 E NetlinkEvent: NetlinkEvent::FindParam(): Parameter 'MDM_SHUTDOWN' not found
09-19 08:10:31.847 2567 2595 E NetlinkEvent: NetlinkEvent::FindParam(): Parameter 'MDM_SHUTDOWN' not found

If you want the entire log let me know and I will