I am facing the same issue
i tried above solutions without success.

my code:

my data string:
{“TYPE”:“url”,“DATA”:{“URL”:“https://linknester.com/abhishekt25?utm_source=qr”}}

My Settings String:
{“LAYOUT”:{“COLORBG”:“ffffff”,“GRADIENT_TYPE”:“NO_GR”,“COLOR1”:“a54f12”},“EYES”:{“COLOR_IHG”:“1e9da8”,“COLOR_IHD”:“1e9da8”,“COLOR_IBG”:“1e9da8”,“EYE_TYPE”:“ER_IC”},“E”:“Q”,“BODY_TYPE”:1,“ARRONDI”:3,“LOGO”:{“L_NAME”:“https://linknester.com/assets/ico/LinkNester-114.png",“L_WIDTH”:114,“L_LENGTH”:114,"EXCAVATE”:true}}

Then too, No LOGO ON response.png

I got it working with logo on monday ( 11. June -2018 ) Then the same code was not working anymore on wednesday. The qr comes but without the logo. @lucamicheli is this the same problem that you have?

I cant get the logo anymore now.

What’s the E available parameter? H mean what?

Is there any parameter where I can reduce the white space padding for the QR Code?

Actually, the “E” paramater changes the size, so at least looks a bit better…

{“LAYOUT”:{“COLORBG”:“ffffff”,“GRADIENT_TYPE”:“NO_GR”,“COLOR1”:“000000”},“EYES”:{“EYE_TYPE”:“Simple”},“LOGO”:{“L_NAME”:“http://plainicon.com/download-icons/50193/plainicon.com-50193-644d-128px.png",“L_WIDTH”:128,“L_LENGTH”:128,“EXCAVATE”:true},“E”:“H”,"BODY_TYPE”:0}

I also need this feature, and I tried many times different size logos, and than suddenly worked with a logo, which is originally 128x128). But whatever I do, the logo remains small all the time 😦 .

{“LAYOUT”:{“COLORBG”:“ffffff”,“GRADIENT_TYPE”:“NO_GR”,“COLOR1”:“000000”},“EYES”:{“EYE_TYPE”:“Simple”},“LOGO”:{“L_NAME”:“http://plainicon.com/download-icons/50193/plainicon.com-50193-644d-128px.png",“L_WIDTH”:128,“L_LENGTH”:128,“EXCAVATE”:true},“E”:“M”,"BODY_TYPE”:0}

May I know is there any update on this issue? i’m looking for this features as well, but when try it out, it’s not working as per expected. Appreciate if can update the documentation for the reference.

Thanks