Yes I have already fix the sound .. All Working fine now!

Thanks again for your help!

You were right .. I was traced the lines with multimeter and i was thinking that i was right with the cables .. But i use a fixed micro usb cable and the pro micro worked..

Thanks a lot for the guiding @rodocop!!!

Thanks @rodocop for your answer ... Sorry was the wrong photo this is the correct .. i didn't make the cable that Tinkerboy suggest but the pins i have connect is the same like this one with cable... I find weird that when i switch on the power from the beginning all the leds on the pro micro stays ...

After i can't find any solution i decided to ask ... I am trying to build my first GBZ with the tinkerboy Controller v2.1.01 i use the guide from Tinkerboy page that was pretty straight forward but the buttons didn't work ... The pro micro board seems that didn't properly work. I have try to reprogr...

Measure the voltage of the battery it might be a bad battery. The board will not output the proper voltage if there is no battery present or the battery is faulty. Try another charged battery to be sure it's the PSU and not your battery. I have already try three different battery packs (that works ...

Measure the voltage of the battery it might be a bad battery. The board will not output the proper voltage if there is no battery present or the battery is faulty. Try another charged battery to be sure it's the PSU and not your battery. I have already try three different battery packs (that works ...

Hello @Helder , I have already bought two of your Retropsu boards i have one of them already in a project and works perfect , but the second one outputs only 3,9V with the batteries fully charged (with green light on after a couple of hours of charging) have you got any idea why this happens ? Thank...