I 9195


Hi to all!!
I’m trying to repair an i9195 with easy repair and jtag adapter from moorc.Checked all connections but every time it box says:
Checking data…
Medusa JTAG Firmware version 1.1.0.
Medusa JTAG Hardware S256 revision D.
ERROR[030]: TDO is constant high. Please check target device connection.
MI: Medusa JTAG init failed.
Selected device model: Samsung GT-I9195
Connecting. Please wait…
Checking data…
VREF = 0.0V is less than required level. Please check target device power supply.
Medusa JTAG Firmware version 1.1.0.
Medusa JTAG Hardware S256 revision D.
ERROR[030]: TDO is constant high. Please check target device connection.
MI: Medusa JTAG init failed.
Please connect the target device and power it on…
Checking data…
Medusa JTAG Firmware version 1.1.0.
Medusa JTAG Hardware S256 revision D.
ERROR[030]: TDO is constant high. Please check target device connection.
MI: Medusa JTAG init failed.
Checking data…
Medusa JTAG Firmware version 1.1.0.
Medusa JTAG Hardware S256 revision D.
ERROR[030]: TDO is constant high. Please check target device connection.
MI: Medusa JTAG init failed.

I have read on help that is connections error but I have checked them and all are ok……
Please any idea?