RS Pro RSPD3303X Manual De Instrucciones página 30

Upgrade via Guide Procedure
Upgrade via guide procedure also can be used if the method above fails.
Specific steps are below:
1. Press the power button to start the instrument, and it will enter the guide procedure
mode.
2. After entering the guide procedure mode, the upgrade method is almost the same as the
first one. But when the dialog popup as it shows in Figure 2, choose "Firmware Mode".
Refer to method 1 on other operation step.
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Figure 4