Pricer SmartTag HD L Red - Can change page but cannot set image / Text

[Robeuur]

I have a Smart Tag HD L Red (at least that's what the app detected)

NFC detection is working, the ESL is responding to the LED test, i can change the page and get the diagnostic page

But when i try to brodcast an image, (Type code : 1627, Res : 296x128, Color mode : Red) the tag is not responding.

I have also tried with other BMP format, without success

I have the latest TagTinker version (2.1)

Thanks for your work on this project, it's really interesting !