General information
•
No GSM test mode is implemented in the Z1 for use with the ROM Loader Software. For the software or the
Language Set update simply connect the Z1 with the Level Shifter and run the ROM Loader Software
(CMD−Z1.EXE). The Z1 does not have to be switched on!
• The switch settings of the Level Shifter are as follows:
Switch Intel ROM Sharp ROM
Main power always on always on
Vpp off on
IGN/Vpp always on always on
FROMRP disabled (factory set to off position) disabled (factory set to off position)
GSM power always on always on
Troubleshooting
•
Cause 1
– The error message “ERROR : SIO Receive timeout” appears after starting the program and trying to
set up the connection between PC and Z1.
• Remedy 1
– Check the connection between MT (mobile terminal), Level Shifter, and PC. Also make sure that the
Level Shifter’s power is switched on (both switches). Both the Main Power LED and the GSM Power
LED must light up.
– Check whether COM1 or COM2 is active.
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