aabytt

function webosScreensaverLaunch() {
    webOS.service.request('luna://org.webosbrew.hbchannel.service', {
        method: 'exec',
        parameters: {
            command: 'luna-send -n 1 luna://com.webos.service.tvpower/power/turnOnScreenSaver {}'
        },
        onSuccess: function(event) {
            console.log('Screensaver', 'webOS screenSaver [Success]', JSON.stringify(event));

        },

throwaway96

Fixing a Microsoft SQL Server LocalDB trigger error

This is a note on how I fixed a relatively minor issue with Microsoft SQL Server Express LocalDB. The solution was a bit difficult to find. Therefore I'm writing this in the hope that it will be found by other people who have the same problem and Google the error message text. This is based on a StackOverflow answer by Yennefer. I've added a bit more detail and an alternative way to delete the triggers. I'm leaving out most of my mistakes, several dead ends, etc.

I'm certainly no expert on anything in this document. I'm just sharing what worked for me.

The error

When I opened Microsoft's Volume Activation Management Tool (VAMT) and tried to connect to my LocalDB instance as usual, I got this error:

aabytt

POWER       116
TV_VIDEO    241
CC          799
RF_EMANUAL  934
SEARCH      217
TV          377
1           2
2           3
3           4
4           5

throwaway96

Warnings

What you do with this information is your own responsibility. If you brick your TV trying this, it's not my fault. You should probably have some electronics experience if you want to attempt this.

This is going to involve opening your TV and attaching wires to the pins of an integrated circuit. If you're not comfortable with that, this is not for you.

This document is a work in progress.

debugstatus

LG TVs since at least the era of NetCast and "Global Platform" (webOS predecessors) have had the notion of a debug level, generally called "debugstatus". There are three modes: DEBUG, EVENT, and RELEASE. TVs normally operate in RELEASE mode. DEBUG mode enables a variety of logging and other debugging features in webOS, including access to the bootloader console and debug menus via serial. EVENT is similar to DEBUG, although it may not enable as much logging and has other relatively minor differences.

aabytt

This is just a dump of some interesting undocumented features of webOS (3.8 specifically, on early 2018 4k LG TV) and other development-related tips.

Homebrew app ideas

• OpenVPN frontend (OpenVPN itself is easily buildable and runs on webOS TVs: https://discord.com/channels/407937994037919756/835489130967859251/906943542457401395)
• App autostart manager - dynamically update arbitrary app config and register it as input (see Registering an app as an input)
• webos-vncserver frontend with autostart option
• Package hyperiond into Piccap directly
• Quick Screenshot (expose HTTP port that just returns PNG of current screen contents)
• Custom IR remote codes editor/updater/blaster

aabytt

{
    "id": "ApplicationDescription",
    "type": "object",
    "properties": {

        "id": {
            "type": "string",
            "description": "Application ID, e.g., \"com.newco.app.myApp\" . Every application has a unique ID, created from reverse DNS naming conventions."
        },
        "main": {

aabytt

Replacing Netflix and Amazon keys of the webOS LG TV LG Magic Remote with other apps

This procedure allows substituting one or both Netflix and Amazon keys of the Magic Remote Control Unit with other apps or TV control menus of the webOS LG TV.

Netflix and Amazon keys can be found just over the Red-Green-Yellow-Blue color buttons of such remote.

Assumption for this procedure is that you accept to uninstall the apps related to the keys to be substituted. Example: if you want to replace the Netflix key, you need to uninstall Netflix (possibly, you are not using Netflix if you do not need such key).

To uninstall Netflix or Amazon Prime, press the Home key of the Magic Remote, select the "LG Content Store" app, press "APP" at the top of the screen, press "My Apps", press the "Rem

Informatic

This is just a dump of some interesting undocumented features of webOS (3.8 specifically, on early 2018 4k LG TV) and other development-related tips.

Homebrew app ideas

• OpenVPN frontend (OpenVPN itself is easily buildable and runs on webOS TVs: https://discord.com/channels/407937994037919756/835489130967859251/906943542457401395)
• App autostart manager - dynamically update arbitrary app config and register it as input (see Registering an app as an input)
• webos-vncserver frontend with autostart option
• Package hyperiond into Piccap directly
• Quick Screenshot (expose HTTP port that just returns PNG of current screen contents)
• Custom IR remote codes editor/updater/blaster

KebabLord

#!/bin/bash

#Get IP address of tv from searching port 56789
if [ -a /tmp/toshiba_ip ];then
	tv_ip="$(cat /tmp/toshiba_ip)"
else
	tv_ip="$(nmap 192.168.1.0/24 -sT -np56789 --open -oG - | awk '/Up$/{print $2}' | tee /tmp/toshiba_ip)"
fi

#Function to send specified command key code

SaltwaterC

Install

As usual, use it at your own risk. I am not to be held responsible for your actions.

Supported devices: WNR1000v2 (tested by me), WNR1000v2-VC (provided by Comcast for free; tested by Douglas Fraser)

Notice: Upgrade WNR1000v2 to the latest factory firmware: 1.1.2.58. Otherwise, the power LED may not behave properly.

You need to place the device into failsafe mode. For booting into failsafe mode, you need to power up the device while holding the reset button with a pin. The power LED should have an amber colour. Hold the button until it is starting to flash green. It starts to flash green after it flashes the amber LED for six times. After that, the device is in failsafe mode, accepting a firmware via its TFTP server. The device should respond to pings at 192.168.1.1, although the responses may be malformed.