November 11, 20232 yr I've updated multiboot image at this link https://drive.google.com/file/d/13X2-9DVrrnDyDg1zd_mkGOs3SCZV84Wl/view?usp=sharing , now it boots OK.
November 17, 20232 yr hello, i have a bricked h20 box too. I can't connect it to my pc to make a recover... (the device don't appear on the device manager) I try a usb male to male, and push reset button, the resistors to make it maskrom, but the pc never see the box... I try the cable with a hdmi to usb and work ok... the serial log is DDR Version V1.10 20190926 In ID:0xFFF 330MHz LPDDR3 Bus Width=32 Col=10 Bank=8 Row=15 CS=2 Die Bus-Width=32 Size=2048MB mach:14 rd addr 0xC0000000 = 0xFFFF ERR Anyone can help me? Thanx
November 18, 20232 yr try to short ROM data lanes that are passed via 51R resistors (8 pcs or 2x 4-resistors assembles hear eMMC). I just shorted any 2 lines between different assembles by tweezer. Edited November 18, 20232 yr by NiTr0
November 18, 20232 yr My board keep entering maskrom mode instead nothing changes even if i flash multiboot on SD or if i erase flash. I think i have an hardware problem at this point...
November 18, 20232 yr @gpsvitor you clearly need to go in maskrom mode shorting the emmc clock pin to ground. You installed armbian on emmc without testing first on sdcard, which is something I always suggest to do. Perhaps your board has 1.5gb of ram like @NiTr0's one? In such case you will need an image with an updated ddrbin, which is the component failing in your situation. If you get in maskrom mode, just erase the flash; don't try to reinstall any armbian image because they will all fail and wait for an updated image.
November 19, 20232 yr try this image: https://drive.google.com/file/d/1bcOfc-df_84-qa0-SQjrQnKpzfEGrdsd/view?usp=sharing I've updateed ddrbin (I manually placed u-boot-rk322x-with-spl.bin with ddrbin 1.11 at 0x8000 in image) and it boots OK on my board
November 20, 20232 yr Hello, i already was able to start the maskrom... At some point i was able to boot the system but nothing on the hdmi... [ 5.743042] #0: DW-I2S-HDMI [ 5.743048] #1: SPDIF [ 5.945069] ttyS2 - failed to request DMA, use interrupt mode [ 5.945630] mmcblk2boot1: mmc2:0001 QN16BB partition 2 4.00 MiB [ 5.946326] mmcblk2rpmb: mmc2:0001 QN16BB partition 3 4.00 MiB [ 5.963373] mmcblk2: p1 [ 5.980205] squashfs: SQUASHFS error: Xattrs in filesystem, these will be ignored [ 5.987783] squashfs: SQUASHFS error: unable to read xattr id index table [ 6.001110] VFS: Mounted root (squashfs filesystem) readonly on device 179:3. [ 6.014907] devtmpfs: mounted [ 6.019533] Freeing unused kernel memory: 784K [ 6.024032] This architecture does not have kernel memory protection. [ 6.206919] vendor storage:20190527 ret = 0 [ 7.638609] random: dropbear: uninitialized urandom read (32 bytes read, 24 bits of entropy available) Debian GNU/Linux 10 multitool ttyS2 multitool login: root (automatic login) sh: 1: cannot create /run/motd.dynamic.new: Read-only file system The programs included with the Debian GNU/Linux system are free software; the exact distribution terms for each program are described in the individual files in /usr/share/doc/*/copyright. Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent permitted by applicable law. -bash: cannot set terminal process group (-1): Inappropriate ioctl for device -bash: no job control in this shell root@multitool:~#) but now i am stucked to maskrom again after try restore the original firmware... no serial output @115200... I lost the complete serial log... my board have the ddr and emmc together...
November 20, 20232 yr @gpsvitor perhaps your multitool copy is an old version. Download a new copy from the first page of this thread
November 21, 20232 yr here's stable options for dtb overlays: overlays=emmc emmc-pins emmc-hs200 ddr3-528 led-conf7 maybe ddr3 will work even on higher frequency (660 or 800mhz) but in stock it works at 600mhz, so I decided to set it at nearest lower value (I don't need much CPU/GPU power in this box, but factory 330MHz seems to be too low)
November 22, 20232 yr At this point the board do not accept any more software... i will put the project to a halt... isn't 100% sutable to my project needs... i'm very thanfull to everybody... thanks
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