Apps Refusing Sleep: Lg G5's Unique Conundrum

The LG G5 has a feature called Knock On and Knock Off, which is also known as Double Tap to Wake and Sleep. This feature allows users to quickly double-tap the screen to turn the display on or off. While this feature is useful for some, others may prefer to disable it. LG has removed the option to disable this feature from the settings menu, but it can still be accessed through a third-party application. Additionally, some users have reported issues with the sleep mode, such as the phone not responding or waking up unless it is plugged into a charger. There are also some concerns about the phone's standby times and deep sleep mode not functioning properly.

Double-tap to wake and sleep

The "Double-tap to wake and sleep" feature on the LG G5 is also known as Knock On and Knock Off. This feature allows you to quickly double-tap on the screen to turn the display on or off.

To use this feature, you can either quickly tap twice on an empty space on the home screen or tap twice on the status bar at the top of the screen. It's important to note that if you double-tap on an app icon, it will launch the app instead of turning off the screen.

Similarly, when your LG G5 is locked, you can double-tap the screen to turn on the display and view your notifications on the lock screen. This is especially useful if you want to check your notifications without unlocking your phone using the fingerprint scanner or home button.

If you prefer not to use this feature, you can disable it. Previously, LG provided a way to manually disable it through a hidden menu. However, in the LG G5, the company has removed the easy access to this toggle from the Settings menu. To access the toggle, you will need to download a third-party application called QuickShortcutMaker from the Play Store. Once you have installed the application, follow these steps:

• Launch the QuickShortcutMaker application.
• Type "KnockON" in the search box (it is not case-sensitive).
• Tap on the 'Settings' option that appears.
• Tap on either of the 'KnockON' options that appear below it.
• Tap on the 'Try' option.
• Toggle the KnockON feature off.

It's important to note that the KnockON feature controls both the Double Tap to Wake and Double Tap to Sleep functions, and you cannot disable one without the other.

Deep sleep not working

The LG G5 has a feature called Knock On and Knock Off, also known as Double Tap to Wake and Sleep. This feature allows users to quickly double-tap the screen to turn the display on or off. However, some users have reported issues with the phone's sleep mode, where the device does not respond to the double-tap action or experiences poor standby times, indicating that deep sleep may not be functioning properly.

To address the issue of the LG G5 not waking up from sleep mode, one user suggested removing a Lifeproof case if the phone has one. Another user recommended debugging the proximity sensor to identify the source of the problem.

Regarding the deep sleep issue, one user observed that their phone's standby times were poor, with the CPU remaining active even when the phone was supposedly in deep sleep mode. This user suggested using ADB to install alternate wakelock monitors to address the issue. Other users attributed the problem to Nougat-related issues, recommending a software update to fix it.

To improve the standby times of the LG G5, it is recommended to disable certain features and apps. For example, the always-on display feature can be turned off to conserve battery life. Additionally, disabling the Smart Cleaning feature can prevent unnecessary killing of processes and improve performance. Users can also uninstall or disable pre-installed apps, also known as bloatware, to reduce background processes and improve standby times.

Phone won't wake up from sleep mode

If your phone is not waking up from sleep mode, there are several possible reasons and solutions.

Firstly, it is important to identify the make and model of your phone, as this can affect the steps you need to take. For example, the LG G5 has a feature called Knock On and Knock Off, which allows you to double-tap the screen to wake the phone or put it to sleep. If your phone is an LG G5, you can disable this feature by downloading a third-party application such as QuickShortcutMaker, which will allow you to access the hidden settings menu and toggle the Knock On feature off.

If your phone is a different model, there are still several things you can try. One user reported that their phone would not wake up from sleep mode unless they plugged in a charger. They also found that the power button, fingerprint scan, double-tapping the screen, and volume buttons did not work. In this case, the problem was caused by a lifeproof case, which was removed to solve the issue.

Another possible solution is to debug your proximity sensor, which can help identify where the problem is. You can also try clearing your cache and performing a factory reset, although this did not work for one user.

If your phone is a Samsung Galaxy S5, the issue could be related to software updates. One user reported that their phone would only wake up after they pulled the battery, and they found that this issue occurred when there was a problem with downloading software updates. Samsung was able to fix the issue by replacing the screen.

Additionally, if your phone is an Android, you can try using an AlarmManager to wake it up from sleep mode. This involves setting an alarm for a specific time and creating a BroadcastReceiver to receive the alarm. You can find example code for this solution online.

Finally, if none of these solutions work, you may need to contact the manufacturer or a mobile phone expert for further assistance.

Knock Code security feature

The LG G5 has a feature called Knock On and Knock Off, which allows users to double-tap the screen to wake the phone up or put it to sleep. This feature can be disabled by accessing a hidden settings menu, as LG has removed the easy way to access this toggle. To do this, you will need to download a third-party application called QuickShortcutMaker. Once downloaded, launch the application and type "KnockON" in the search box. Tap on the "Settings" option that appears, then tap on either of the "KnockON" options that appear below it. Tap on the "Try" option, and then toggle the KnockON feature off.

Now, onto the Knock Code security feature:

Knock Codes are a knowledge-based unlock authentication scheme used on LG smartphones. Users enter a code by tapping or "knocking" a sequence on a 2x2 grid. While it is a lesser-used authentication method compared to PINs or Android patterns, there is likely a large number of Knock Code users; estimates range from 700,000 to 2,500,000 in the US alone. In a study, participants were asked to select codes on mobile devices in three settings: a control treatment, a blocklist treatment, and a treatment with a larger, 2x3 grid. The results showed that Knock Codes are significantly weaker than other deployed authentication methods, such as PINs or Android patterns. In a simulated attacker setting, 2x3 grids offered no additional security. However, blocklisting was found to be beneficial, making Knock Codes' security similar to Android patterns.

Despite the security concerns, participants in the study expressed positive perceptions of Knock Codes. It is recommended that users deploy blocklists when selecting a Knock Code, as this improves security without negatively impacting usability.

Customising the home screen

The LG G5 has a few customisation options available for its home screen. Firstly, you can change the layout of the navigation buttons at the bottom of the screen. To do this, go to the Display settings and open the Home touch buttons submenu. Here, you can change the colour of the buttons to black and rearrange the layout selection of buttons. You can also add one of three alternatives: notifications, Capture+, and QSlide. Up to five buttons can be added to the row.

Another customisation option is to add another home screen to the left of your main home screen. This can be done by going to the LG Smart World store and downloading Home UX 4.0, which allows you to move screens around and restores the app drawer.

If you want to remove apps from your home screen, you can do so by long-pressing on an empty spot on the home screen, selecting 'Home screen settings', then 'Hide apps', and then choosing which apps you want to hide.

If you want to remove bloatware apps, go to the Apps settings menu, select 'All apps' at the top, scroll down to find the bloatware apps you want to remove, and then tap on each app and hit the 'Uninstall' or 'Disable' button. Disabled apps won't run in the background or appear in your app drawer, but they will still be on the device.

Finally, you can add a few handy setting toggles to the top of the G5's notification shade. Tap the pencil icon at the top of the screen to enter editing mode, and then tap and drag to move the icons around. You can also add additional settings, like brightness and volume, to the same area. Don't forget to tap the checkmark at the top to save your changes.

Frequently asked questions