Hi Kever / Jagan,

I have Radxa N10 RK3399pro model B 6 GB ram, (4 GB +2GB NPU). When I tried to boot via micro sd card it booted with stock android u-boot, but this u-boot was not enabled all 4BG memory in total. So I tried to replace the image with the latest u-boot.

Now when I flash the u-boot to eMMC (onboard) with the latest u-boot it failed to boot. see below.

Please help me recover the board, I cannot reset the board via the reset button or nor is it entering the u-boot command prompt.

Please advise me on how to proceed.on recovery off the board?

Thanks -Anand

As per the Radax wiki page the DRAM 6GB 64bit dual channel LPDDR3@1866Mb/s, So I have modified the code as below.

$ git diff arch/arm/dts/rk3399pro-rock-pi-n10-u-boot.dtsi diff --git a/arch/arm/dts/rk3399pro-rock-pi-n10-u-boot.dtsi b/arch/arm/dts/rk3399pro-rock-pi-n10-u-boot.dtsi index 7c66e1145a..08266bb3ac 100644 --- a/arch/arm/dts/rk3399pro-rock-pi-n10-u-boot.dtsi +++ b/arch/arm/dts/rk3399pro-rock-pi-n10-u-boot.dtsi @@ -4,7 +4,7 @@ */

#include "rk3399pro-u-boot.dtsi" -#include "rk3399-sdram-lpddr3-4GB-1600.dtsi" +#include "rk3399-sdram-lpddr3-samsung-4GB-1866.dtsi"

Boot failed ...not able to recover the.

U-Boot TPL 2021.10-rc4-00055-g8284d6f838-dirty (Sep 26 2021 - 20:29:22) Channel 0: LPDDR3, 933MHz BW=32 Col=10 Bk=8 CS0 Row=15 CS1 Row=15 CS=2 Die BW=16 Size=2048MB Channel 1: LPDDR3, 933MHz BW=32 Col=10 Bk=8 CS0 Row=15 CS1 Row=15 CS=2 Die BW=16 Size=2048MB 256 stride Trying to boot from&{{▒▒{kk Returning to boot ROM...

U,Boot SPL 2021.10-rc4-00055-g8284d6f838-dirty (Sep 26 2021 - 20:29:22 +0530) Trying to boot from MMC1 Card did not respond to voltage select! : -110 spl: mmc init failed with error: -95 SPL: failed to boot from all boot deviceC ### ERROR ### Please RESET the board ###