MaskRom mode

See startup mode for an introduction startup mode

"MaskRom" pattern is the last line of defense equipment burn out.
Forced entry "MaskRom" involved hardware operation, have certain risk,
so only in the equipment into the "Loader" mode, can try "MaskRom"
mode.

Please read carefully and operate carefully!

The operation steps are as follows:

Disconnect the power supply of the device

Use tweezers to short the two test points on C40PL (both as shown in
the figure below)

Plug the device into the power supply and power it on

The following are the two test points on C40PL

At this point, the device should go into "MaskRom mode".