VVDI PROG Read MC68HC908JK1 "Chip unconnected" Solution

Question:

Xhorse VVDI PROG read MC68HC908JK1, then program says “Try Frequency failed Chip unconnected(00)”.

vvdi-prog-read-mc68hc908jk1-chip-unconnected-solution-1

vvdi-prog-read-mc68hc908jk1-chip-unconnected-solution-2

Here Xhorsevvdi shows the possible

Solution:

1.Check connection by the diagram

vvdi-prog-read-mc68hc908jk1-chip-unconnected-solution-3

2.Heat chip

3.Adjust VCC to 4.5-5.0v and read again

vvdi-prog-read-mc68hc908jk1-chip-unconnected-solution-4

4.If the error remains, it means that the chip is encrypted and VVDI PROG don’t support it.

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VVDI PROG Read MC68HC908JK1 “Chip unconnected” Solution