SOURCE: my toshiba e-studio 550: service recommended for SPC appeared
Check the control status of the surface potential sensor (05-242).
<When “4” is displayed: sensor error>
The sensor detection value is abnormal or the sensor output value is not changed even though
the main charger bias value is changed.
Is the connector of the surface potential sensor connected properly?
Is the main charger grid/wire attached poorly?
Is the main charger attached poorly?
Are leaks and such occurring?
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what is a master reset code? are you asking for an administrator code?
What is your estudio 550 problem?
As far as i concern, there is no master reset code...
Unless u format the hdd and update firmwares....
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