Problem solved.

I used unsoldered the LED . Re-solder it and used a precision knife to cleary mark the LED pads .
Many thanks for your help

I used unsoldered the LED . Re-solder it and used a precision knife to cleary mark the LED pads .
Many thanks for your help
I'll check the resistor again .A PCB picture would be appreciate : after soldering, the reference are masked by the resistor itself .