Problem booting new Rock5b+

Hi there,

just got my new Radxa Rock5b+ v1.2 but I’m unable to boot it… Serial shows this output:

DDR Version V1.08 20220617
LPDDR5, 2736MHz
channel[0] BW=16 Col=10 Bk=16 CS0 Row=16 CS1 Row=16 CS=2 Die BW=16 Size=4096MB
channel[1] BW=16 Col=10 Bk=16 CS0 Row=16 CS1 Row=16 CS=2 Die BW=16 Size=4096MB
channel[2] BW=16 Col=10 Bk=16 CS0 Row=16 CS1 Row=16 CS=2 Die BW=16 Size=4096MB
channel[3] BW=16 Col=10 Bk=16 CS0 Row=16 CS1 Row=16 CS=2 Die BW=16 Size=4096MB
Manufacturer ID:0x1 Samsung
CH0 RX Vref:25.1%, TX Vref:21.0%,19.0%
CH1 RX Vref:24.1%, TX Vref:19.0%,21.0%
CH2 RX Vref:25.1%, TX Vref:23.0%,22.0%
CH3 RX Vref:26.1%, TX Vref:22.0%,22.0%
out
INFO:    Preloader serial: 2
NOTICE:  BL31: v2.3():v2.3-499-ge63a16361:derrick.huang
NOTICE:  BL31: Built : 10:58:38, Jan 10 2023
INFO:    spec: 0x1
INFO:    ext 32k is not valid
INFO:    ddr: stride-en 4CH
INFO:    GICv3 without legacy support detected.
INFO:    ARM GICv3 driver initialized in EL3
INFO:    valid_cpu_msk=0xff bcore0_rst = 0x0, bcore1_rst = 0x0
INFO:    system boots from cpu-hwid-0
INFO:    idle_st=0x21fff, pd_st=0x11fff9, repair_st=0xfff70001
INFO:    BL31: Initialising Exception Handling Framework
INFO:    BL31: Initializing runtime services
WARNING: No OPTEE provided by BL2 boot loader, Booting device without OPTEE initialization. SMC`s destined for OPTEE will return SMC_UNK
ERROR:   Error initializing runtime service opteed_fast
INFO:    BL31: Preparing for EL3 exit to normal world
INFO:    Entry point address = 0x200000
INFO:    SPSR = 0x3c9

Light turns from green to solid blue and thats it… SD card with image is not booting.

Am I missing something? Any help would be appreciated.

Thanks!

Proper power supply?
Unplug everything except sd card/uart and retry with different power source. Mostly it will bootloop, but it also can hang.