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INSTALL.md

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Install Wibox patch

This guide explains how to install this custom scripts.
⚠️ Please ensure to take additional caution steps and perform backup of all the content before writing!

Serial access

⚠️ Do not soldier while the board is plugged. Remove the board from the wall / box.
It is highly recommended to have serial access prepared, as it's your way to recover the board in case something goes wrong.

You can connect to the board via serial port enabled on ttySGK2, at baud rate 115200. Ensure to NOT be using hardware flow control in your program, as it blocks input.

Tip

If you don't see any messages in serial after booting, probably you are running an updated firmware version.
Enter U-boot settings and run the following:

setenv consoledev 'ttySGK0'
saveenv
reset

Connectors are smaller than usual (Dupont cable metal contact won't fit), so you will need to soldier with a copper wire, or just get the copper connector from the Dupont cable.

Board TTL
GND GND
TX RX
RX TX

Preparation

  • Get access to the Wibox system terminal.

If your system version is V500.R001.A103.00.G0021.B007, you may have access to telnet service.
⚠️ New versions such as V500.R001.A103.00.G021.B013 have this disabled, so you'll need to get serial access.

Login to system with user root and password qv2008. Don't worry, with this patch you will be able to change the default password. :)

IDS79380000 login: root
Password:
#

NOTE: If console login is from Sofia application, credentials are root and aszeno.

  • Download and build cramfs-tools.

  • Backup all the content before writing.

You can use ncat / nc command to send data to your computer.

In your Linux computer do:

for I in $(seq 0 6); do
  ncat -vlp 8888 > mtd${I}
done

In your Wibox device do:

YOUR_COMPUTER_IP=192.168.1.100
for I in $(seq 0 6); do
  dd if=/dev/mtd${I} bs=4096 | nc $YOUR_COMPUTER_IP 8888
  sleep 1
done

Build

Run sudo make all to run all the preparation scripts and build your custom image. Size will be around 4MB and must not exceed 11MB.

Upload the new image to Wibox /tmp folder (ramfs), you can use nc again.

ncat -vlp 8888 < release/latest
# ----
nc ${YOUR_COMPUTER_IP} 8888 > /tmp/update.img

❗ IMPORTANT: Set-up network

Before flashing, you need to re-define your Wireless credentials to connect. This is because Sofia WiFi credentials are encrypted, and we cannot retrieve them at the moment.

Create the following file in /mnt/mtd/wpa_supplicant.conf :

ctrl_interface=/var/run/wpa_supplicant
ap_scan=1

network={
        ssid="CHANGE_WIFI_NAME"
        psk="CHANGE_WIFI_PASSWORD"
        scan_ssid=1
        key_mgmt=WPA-PSK
}

Flashing

⚠️ This step is not fully safe and may require having access to serial to reflash.

Use update_firmware.sh script to flash the new firmware placed in /tmp/update.img. This only flashes the /usr content folder (mtd4 partition), so Linux Kernel will still boot.

After flashing, reboot the Wibox device to run the new content.

ℹ️ If you want to flash manually, the commands are:

dd if=/tmp/update.img of=/dev/mtdblock4 bs=4096
# IMPORTANT! ensure changes are written to flash
sync
fsync /dev/mtdblock4

Recovery via Shell

In case the Wibox device does not connect to Wifi back, chances are that the /usr partition is not properly flashed, and the run.sh script is not launching.

The device should launch a root terminal via serial port, so you can continue to manage it.

Recommended to use a laptop and/or having a USB extender for USB/TTL to the Wibox device.

Use minicom to connect to the TTL device and send the file via serial port using XMODEM protocol.

Ensure to setup it first sudo minicom -s, configure default serial device and disable hardware flow control.

Once you're connected to the Wibox device via serial:

cd /tmp
rx /tmp/update.img

Then press [Ctrl]+[a], [z] and [s] Send file. Send your firmware image and reflash again. It takes about 20 minutes to send the file.

Recovery via U-boot

If somehow you're unable to access shell console but U-boot works, you can also attempt to reflash from there.

⚠️ Be sure to read and understand everything you're about to do, before running any command!

# Write FF to RAM at address C1000000 (kernel), B10000 times (11MB)
mw.b 0xC1000000 ff 00b10000

# Initialize Flash system
sf probe

# Get content from serial `YMODEM` to RAM. This will take about 15 minutes.
loady 0xC1000000

# As specified in docs/system.md, (/usr) mtd4 size is 11MB.
# Offset / starting address is the sum of the size of previous partitions.
# mtd0 + mtd1 + mtd2 + mtd3 = 0x460000
# 256  + 64   + 1920 + 2240 = 4480KB

# Erase Flash content - empty mtd4
sf erase 0x00460000 00b10000

# Write content from RAM to Flash
sf write 0xC1000000 0x00460000 00b10000

# Reboot device
reset