I bought a second OM40003 board .
This second board has the same problem with erasing the flash under GUI Flash Tool from mcuxpresso.
I downloaded the FlashMagic program .
Jjumper JP1 at the OM40003 board is open.
Selected the LP54018 (SWD,LPC54010 from the list).
Installed the USB driver for SWD .
Reconnect OM40003 to USB port.
At the FlashMagic interface "wnjg43nlpFc(SWD over Link2) appears.
Select “Erase” → Entire device
Pushed the start button.
Receivd the following error.
Dear Ali,
We used the LPC54018 from NXP and a landscape TFT display .
It was not possible to rotate the image to portret in the MCUXpresso under lvgl .
NXP invistigated some time for this .
The solution from NXP was to use a RT1166 with a portret orientated TFT display .