I have a Orange Pi Zero 3 4GB Board. It uses a Micron LPDDR4X RAM and H618 Processor. I have tried a plethora of distros and tried to change Uboot and DTB but unable to make it work. Spent days on Gemini and Claude but no luck. Below is the output from UART debuggger:
The Highlight being Unhandled Exception EL3.
U-Boot SPL 2025.04-armbian-2025.04-S3482-Pf089-H8869-V3d5b-Bb703-R448a-dirty (May 25 2025 - 14:46:18 +0000)
DRAM base address is defined as 0x40000000
DRAM has 16 b/raw, 10 b/col, 4 B/width, 2 #rank and 8 #bank
DRAM top address must be less than 0x100000000
DRAM: 4096 MiB
Trying to boot from MMC1
Unhandled Exception in EL3.
uart_opizero3.txt
