Sharp LC-13SH1E Service Manual page 19

4) First click [Enter ISP Mode] then click [Send]. If the following window appear, click [Yes]
Confirm ISP status "Ready".
If "Entering ISP is not successful" occur, repeat step No. 4) again. If still fail, unplug the AC cord and
repeat from step No. 2) again.
5) Then click [Erase Flash], follow by [Send]. Confirm the Program, PK26 & Character are all "OK" and ISP
status is "Ready".
If "Failed" occur, unplug the AC cord and repeat the whole process again from beginning.
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LC-13SH1E
LC-15SH1E