Unsupported flash ID while trying to flash U-Boot

Hello!

Due to a mistake if mine, i ended up killing my initial installation of the u-boot loader on my sc589-mini eval board.

So i tried to reinstall the u-boot loader using the steps from "2.2.3 Flashing U-Boot for the First Time".

Everything works fine while downloading  the u-boot via the ICE-1000 emulator.

But after starting the u-boot image, i get the following error:

U-Boot 2015.01 ADI-1.3.0 (Nov 01 2018 - 15:11:10), Build: jenkins-1.3.0-IP119-U3

CPU: ADSP ADSP-SC589-0.1 (Detected Rev: 1.1) (spi flash boot)
VCO: 450 MHz, Cclk0: 450 MHz, Sclk0: 112.500 MHz, Sclk1: 112.500 MHz, DCLK: 450z
OCLK: 150 MHz
I2C: ready
DRAM: 224 MiB
MMC: SC5XX SDH: 0
SF: Unsupported flash IDs: manuf 20, jedec ba20, ext_jedec 1044
*** Warning - spi_flash_probe() failed, using default environment

In: serial
Out: serial
Err: serial
other init
initcall sequence cff9ed68 failed at call c2201130 (err=1)
### ERROR ### Please RESET the board ###

Is there any way to solve this problem?

Best regards

Christof