RBS50 won't connect. Seems to boot. Strange consol log

[Thomasx]

Hi

One of my RBS50 satellites won't connect to the router, and I have not been able to reset it or download new firmware to it in any way. Tried TFTP and nmrpflash to no avail.
So I found out about the console and got lot of info. It looks like it is booting all the way and starts up as expected.
BUT, there are a few things in the log that looks strange, and that I think might be the cause.
I'll just take in the order it popped up in the console log. The whole log is attached as a file

Here's some parts I wonder about

U-Boot 2012.07 [Barrier Breaker unknown,unknown] (Jan 04 2017 - 13:54:09)

U-boot dni1 V1.4 for DNI HW ID: 29765352; NOR flash 32MB; EMMC flash 4000MB; RAM 512MB
smem ram ptable found: ver: 1 len: 3
DRAM:  512 MiB
machid : 0x8010001
NAND:  ID = 0
Vendor = 0
Device = 0
Nand Flash error. Status = 64
ONFI Read id cmd failed
ONFI probe failed
SF NAND unsupported id:ff:ff:ff:ffSF: Unsupported manufacturer ff
ipq_spi: SPI Flash not found (bus/cs/speed/mode) = (0/0/48000000/0)
0 MiB
MMC:   qca_mmc: 0
*** Warning - bad CRC, using default environment

Is there something wrong with the NAND? ANything I can do to fix that?

Hit any key to stop autoboot:  2  1  0
eth0 PHY0 Down Speed :10 Half duplex
eth0 PHY1 Down Speed :10 Half duplex
eth0 PHY2 Down Speed :10 Half duplex
eth0 PHY3 Down Speed :10 Half duplex
eth0 PHY4 Down Speed :10 Half duplex

 nmrp server is stopped or failed !
Read BootPart from BOARD DATA...
mmc_read will run command: mmc read 0x871cfca8 0x2a22 0x100

MMC read: dev # 0, block # 10786, count 256 ... 256 blocks read: OK
boot partition : 2
BootPart = 2
Loading DNI firmware for checking...

I guess this explains why I was unable to download new firmware.
Any ideas why the nmrp server stopped or failed, and how to fix it?

** rootfs address : 0x8433ffc0 **

## Checking Image at 84000000 ...
   FIT image found
   FIT description: ARM OpenWrt FIT (Flattened Image Tree)
    Image 0 (kernel@1)
     Description:  ARM OpenWrt Linux-3.14.77
     Type:         Kernel Image
     Compression:  gzip compressed
     Data Start:   0x840000e4
     Data Size:    3056369 Bytes = 2.9 MiB
     Architecture: ARM
     OS:           Linux
     Load Address: 0x80208000
     Entry Point:  0x80208000
     Hash algo:    crc32
     Hash value:   3b968961
     Hash algo:    sha1
     Hash value:   dd1dda144175330a6fe1708fd8e9b9b00ada4fa9
    Image 1 (fdt@1)
     Description:  ARM OpenWrt qcom-ipq40xx-ap.dkxx_cc device tree blob
     Type:         Flat Device Tree
     Compression:  uncompressed
     Data Start:   0x842ea51c
     Data Size:    39067 Bytes = 38.2 KiB
     Architecture: ARM
     Hash algo:    crc32
     Hash value:   f94716db
     Hash algo:    sha1
     Hash value:   7e37e5ed95940f74e51add9aab58a3766e853729
    Image 2 (fdt@2)

Why does it say OpenWRT? Is Netgears firmware based on OpenWRT, or did someone change the firmware on this unit to OpenWRT? Because I sure did not! It is a second hand unit, but it has worked in my system.Still doesn't explain the other issues above I guess.

Other than the above I have not read through the whole log, excep at the end I noticed this, where it seems it is trying to connect, I assume the backhaule connection to the RBR50 router.

The sshenable is running ...
Sending discover...
Sending SCAN START cmd
Sending discover...
not restart eth_handle when /tmp/disable_satelite_dhcpd existed
send_vdev_down_cmd_non_tlv for vap 3 (de05c000)
Sending SCAN START cmd
Cannot connect to server , will try 60s later!!Sending discover...
Sending discover...
Sending discover...
send_vdev_down_cmd_non_tlv for vap 3 (de05c000)
not restart eth_handle when /tmp/disable_satelite_dhcpd existed
Sending SCAN START cmd
send_vdev_down_cmd_non_tlv for vap 3 (de05c000)
Sending discover...
Sending discover...
Sending SCAN START cmd

The unit does not connect to the router wirelessly. If I connect with cable, it will show upp as 5G connected with good backhaul status, but it won't connect. It shows IP 192.168.1.250. Which it shouldn't. I can't go it's webpage. It will respond to ping. Same thing if I connect directly to a PC.

Any ideas on how to fix this unit would be much appreciated!

 

[Thomasx]

Update:

If I interrupt the boot and enter

board_model_id_show

it says: RBS50

board_data_show

It says: 110202

Changing to 1102 doesn't make any difference.

Interesting thing is that it doesnt just say NAND flash error, it also says SPI flash not found. Are these two related somehow, or does there seem to be more than one error with flash memory here, both NAND and SPI?

 

[Thomasx]

I managed to fix it. Here's what I did

YES! YES! YES! EUREKA! RBS50 Unbricked! :-)

I MANAGED TO UNBRICK MY RBS50! :D:D:D Here's a short description of how I did. I turned of Wifi on my PC. (Important to avoid any network issues) I connected to the RBS50 with the serial console. I also connected the RBS50 to my PC with an ethernet cable, connected to the LAN port closest to...

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