154
Faulty Unit 
Error...
Self-test failed. An operational fault has been detected 
with your MTP850 Ex/MTP810 Ex. Record the error 
number. Turn your MTP850 Ex/MTP810 Ex off and 
contact service.
Group already 
exists
The group you are attempting to add already exists in 
the My Groups folder.
Insufficient 
Visible Data
Your terminal is in the process of determining your 
location. This may take several minutes to complete.
Insufficient 
Visible Satellites
Your terminal is in the process of determining your 
location. This may take several minutes to complete.
Invalid ID The entered number is not valid.
Limited Service Emergency Calls, Emergency Alarms and mobility 
operations (e.g.: group attachment) are allowed. All 
other incoming and outgoing call and data services are 
blocked. 
List Empty There are no programmed entries in the scrolling list. 
Type the entry.
List not Attached
All talkgroups in the scan list are not attached.
List Partially 
Attached
The scan list is active, but not all talkgroups are 
attached to it.
Low Battery You have less than five minutes of talk time.
Message 
Delivered
Indicates mail successfully delivered.
Message Failed Indicates mail delivery failure.
Mode
No Service
The MTP850 Ex/MTP810 Ex is outside coverage. 
Return to coverage.
My Groups is 
empty
You cannot view/delete groups when the My Groups 
folder is empty.
My Groups is full You are not allowed to add a group to the My Groups 
folder as it already contains the maximum allowed 
number of groups.
Messages Message Description