Samsung WAM250

A wireless audio hub for use with Samsung M7 speaker units.

This device uses dual-image (switched between upgrades) with a common jffs2 config partition. Fortunately, there is a way to disable this mode so that more flash space can be used by OpenWrt image. (mentioned in the initial git commit, i don't know how to do this and it isn't elaborated upon)

You can easily access this device over telnet, using root/root credentials (the same also work for serial console access).

1. Make sure that your device uses second (bootpart=2) image using the command fw_printenv bootpart.
2. If your device uses first image (bootpart=1) you need to perform a firmware upgrade.
   1. Download the OEM firmware from the URL above, unzip it and place SS_BHUB_vX.X.XX.bin on the top level of a FAT formatted USB flash drive, and plug it in to the device. The power LED should start flashing, after the update when the power LED stops flashing and stays ON, the device should boot from second partition.
   2. You can verify the firmware upgrade using the web gui. (default login: admin/1234567890)
3. Download the sysupgrade image (you can use wget, tftp or ftpget) and flash it to the device using issue following commands:

cd /tmp
wget https://downloads.openwrt.org/releases/24.10.1/targets/ath79/generic/openwrt-24.10.1-ath79-generic-samsung_wam250-squashfs-sysupgrade.bin -O firmware.bin
mtd_debug erase /dev/mtd3 0 $(wc -c /tmp/firmware.bin | awk -F' ' '{print $1}')
mtd_debug write /dev/mtd3 0 $(wc -c /tmp/firmware.bin)
fw_setenv bootpart
fw_setenv bootcmd "bootm 0x9f070000"
reboot

Download vendor firmware to “/tmp” device and issue below commands:

fw_setenv bootpart 1
sysupgrade -n -F SS_BHUB_v2.2.05.bin

→ generic.sysupgrade

1. Browse to http://192.168.1.1/cgi-bin/luci/mini/system/upgrade/ LuCI Upgrade URL
2. Upload image file for sysupgrade to LuCI
3. Wait for reboot

If you don't have a GUI (LuCI) available, you can alternatively upgrade via the command line using sysupgrade. Login as root via SSH on 192.168.1.1, then enter the following commands:

cd /tmp
wget https://downloads.openwrt.org/releases/24.10.1/targets/ath79/generic/openwrt-24.10.1-ath79-generic-samsung_wam250-squashfs-sysupgrade.bin -O firmware.bin
sysupgrade /tmp/firmware.bin

→ generic.debrick

→ failsafe_and_factory_reset

→ Basic configuration

→ hardware.button on howto use and configure the hardware button(s). Here, we merely name the buttons, so we can use them in the above Howto.

Front:
Insert photo of front of the casing

Back:
Insert photo of back of the casing

Backside label:
Insert photo of backside label

→ Warranty

Main PCB:
Insert photo of PCB

→ port.serial general information about the serial port, serial port cable, etc.

How to connect to the Serial Port of this specific device:
Insert photo of PCB with markings for serial port

→ port.jtag general information about the JTAG port, JTAG cable, etc.

How to connect to the JTAG Port of this specific device:
Insert photo of PCB with markings for JTAG port

→ bootloader

None so far.

Space for additional notes, links to forum threads or other resources.

• ...

How to add tags