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From the layout: 1. You don't seem to have enough ground stitching via connecting top copper to bottom copper ground. 2. You shouldn't enter or exit from pad in 45 degree angle. The track should always leave or enter in 90degree angles. 3. Buttons mounting holes can be grounded. 4. You seem to have peculiar method to block ground plane entering to adjacent areas. Lets take a left side LED in example. You have a long trace leaving on the right side pad and ending the trace with via right next to a resistor pad, thus blocking the top ground copper entering straight to the modules ground pad. Same thing in the audio connector. You have the right capacitor which is almost blocking the ground to flow between the caps. 5. One important thing is that you should never flood top and bottom copper underneath the Bluetooth antenna. That area needs to be left without ground copper area.

Hi again! This ratline problem was solved by renaming all +5V signals to +5. Then Autorouting (saving old traces) and DRC. The ratline was gone but why? Maybe because its label was +5V and there was nothing to connect with. Next test is to rename +5 to +5 V. (Or better leave it alone). Regards Harri

Regarding the first question, I’ve checked your project. The Gerber files are fine; the issue may be a DFM bug. When you place the PCB order, you can explain the situation to your sales representative and have them check the Gerbers before production. As for the ASM1117, according to the datasheet, its maximum output current is 1A. It is only used to power the servos. Each servo draws around 200–250mA, we have tested it and the supply is sufficient without causing excessive heating.

Hello, is this what you need?[Picture]