If trailing slash is missing from serv= portion of Dictionary_Server_Script then device starts neverending booting loop (reset to factory default is required for recovery). No syslog nor debug message fired on it.
Example of incorrect configuration:
<Dictionary_Server_Script ua="na">serv=https://provisioning.server.cz;d0=English...
instead of correct
<Dictionary_Server_Script ua="na">serv=https://provisioning.server.cz/;d0=English...
Althougth incorrect syntax of parameter is administrator's bug, device should not freeze. It reveal a problem in device's firmware code. So be very carefull editing th eparameter - device in booting loop doesn't ask for configuration nor register to PBX so it's not easy to recover it ...
