Below are the recovery instructions for a dead MAP330 or Meridian. 

They are written for the MAP330 but they work just as well for the Meridians.



1. If your MAP330/Meridian in in a "locked up" state (stuck on), power it down 

by holding down MARK/GOTO and the ESC keys and press ENTER. This will 

power down the unit.



2. Power it up in "Software upload mode" by holding down MARK/GOTO

and the ESC keys and press POWER. Unit shold power up with a

"software upload mode active" message.



3. Run magup.exe, select NO at the dialog box. Click on "Expert" and 

checkmark "On" for the "Expert Upload" setting (be sure MAP 330/Meridian is 

selected as the "Unit Type" and click "OK"



4. Select the firmware file by clicking on "File" then "Select Code File".

The firmware file should have a name like ZORRO204.SRE or ZORRO204.HEX or MRDN3_08.HEX.



5. Click on "Upload" and click "OK". Checkmark "Program Code Only".

Check "Upload File".