Possible Issues 
 
This section covers the possible issues a user may encounter with the MC9090: 
 
The scanner does not power on 
 
Possible Cause 1 
 
The Battery needs to be charged. 
 
Solution 
 
Cradle the scanner or charge the battery. 
 
Possible Cause 2 
 
The Battery is not completely inserted. 
 
Solution 
 
Press the battery into the handle until you hear a single click. If the battery does not 
slide in cleanly, do not force it. Check the slot for obstructions and the battery for 
deformities or flaws. 
 
Possible Cause 3 
 
The scanner has crashed or frozen. 
 
Solution 
 
Complete a warm boot as outline on the first page of this document. If that does not 
solve the problem, complete a cold boot. 
 
The battery does not charge 
 
Possible Cause 1 
 
The scanner was removed from the cradle while it was still charging. 
 
 
 
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