Hello,
The app not installed error occurs to several users and most of them don't know what to do. However, there is nothing to panic as various manual as well as automatic fixes are available.
You can try the below manual fixes as mentioned:
Restart Your Android Device
Mount SD Card
Check Storage Location
Delete App Cache And Data
Download Apps Only From Google Play Store
Remove Unused Apps Or Files
Avoid installing Apps from SD-cards
Older Version Or Not compatible APK
Incorrect App Permission

Or you can also use professional tool like Android Repair tool. This is one of the highly suggested program to fix App not installed error and several other types of issues on Android phones. It is easy to use and has the ability to troubleshoot such kind of error easily.

There are lots of Android phone users who have noticed automatic touches on their Android screen. This is also famous as “Ghost Touch” issue on their device. This is where users gets shocked for sometimes that who is tapping or touching the screen without manual action.
However, the issue is not a new thing for users but most users see it for the first time. There is no need to panic as lots of manual ways are available that will help you to fix ghost touch issue on Android phone.
Here are some manual methods to try:
• Restart your Android phone
• Disconnect the charging cable
• Use a high quality charger
• Check your charger
• Clean the display
• Remove screen protector and case
• Factory reset your Android phone
I hope following these methods will help you to get rid of ghost touch on Android phone.

It seems impossible to retrieve files from Android after factory reset but its not the case everytime. After factory reset, there is still a chance to get back lost files from Android. Here I am going to give you few ways to recover files from Android after factory reset without computer:
• Recover Data After Factory Reset With Google Account
• Recover Android Data After Factory Reset Through Local Backup

But when you don't have backup then you need to use Android Data Recovery software, a professional recovery tool. With the use of this tool, all your deleted items from Android phone is easily retrieved without computer and that too without backup.
Check out more details on: How To Recover Data After Factory Reset Android Without Computer

Hello,
If you have mistakenly deleted your messages from Android phone then check the backup first if you have created before otherwise, you should use Android Data Recovery software. This is easy to use and it will recover your lost messages you have deleted for any reason. Even you can use this powerful software to get back other data as well like contacts, photos, videos, documents, notes, call history etc.

There are ways to recover deleted Snapchat messages on Android. I will explain you in the below section:

Method 1: How to recover deleted Snapchat messages using Snapchat Cache
Step 1: First, connect your Android phone to PC through USB cable
Step 2: When connected, your device memory is displayed on PC. After that, enter “Internal Storage” or “External Storage” and select “Android” folder
Step 3: Here you have to choose “Data” and then search folder named as "com.snapchat.android"
Step 4: After this, search and recover every deleted Snapchat history in cache by renaming the messages to remove extension. Just for example, if you have to recover photos then go to com.snapchat.android > cache > receive_image_snaps

Method 2: Using Dumpster App to recover missing Snapchat messages
• First, install the Dumpster app on your Android phone
• After that, open Snapchat photos or videos
• After that, go to Dumpster app and here you can get all your photos or videos
• Turn ON Dumpster app so that you don’t have problem in searching videos or photos in Snapchat


See more on: [GUIDE]- 3 Effective Methods To Recover Deleted Snapchat Messages On Android (2019 Updated)

Once I also had the same problem and I was very irritated of the situation. Finally I have found some ways that helped me a to fix Unfortunately system UI has stopped error on Android. They are:

Method 1: Reboot your device

The very first thing that you should do is to Reboot your device to overcome the error. Nothing hard to do this method, simply switch off your device and again Power it ON when you see the logo on screen. After that immediately release Power key and press and hold Volume down button.
After you see Safe Mode on screen, release the button and check whether the problem is solved or not

Method 2: Reset App Preference

• First, go to Settings > Application Setting/Apps > All > tap on Menu Key (some devices has three dot button)
• Then you will see different option > click on “Reset app preferences”
• Popup will occur where you have to read content and then tap on RESET APPS
• At last, Restart your phone and look whether the error was fixed or not

Method 3: Wipe Cache partition

Even clearing the cache partition can also fix the above error. You might know that these partitions store all files for system files, driver, built in apps etc. So to fix the issue, clearing the cache files is an important step towards fixing the problem.
However, different devices have different ways to put phone in recovery mode. So you should prefer your device’s manual guide to enter Recovery mode and after that follow the below steps to fix “Unfortunately, System UI Has Stopped” error.
When your device is in recovery mode, you will get several options as the below image.
You have to use the Volume down key to select “Wipe cache partition”
When the process is over, tap on ‘Reboot system’ that is first option in recovery mode
With the use of this process, all your unwanted files will be deleted and there are chances that you will lose app related data but the relief is that the error will be fixed

Method 4: Uninstall Google Updates to fix error

Many users have reported that uninstalling Google updates can fix the error. Therefore, you should focus on uninstalling the update when you meet the error. Simply go to Settings > Application manager > select the installed app > find Google app and tap on Uninstall App.
At last, Restart your device to check whether the problem is resolved or not.

See more on: 10 Effective Methods To Fix “Unfortunately, System UI Has Stopped” Error On Android

There are ways which can help you to get back all lost WhatsApp messages on Android. The first thing is if you have backup of all your WhatsApp messages then you can restore from backup otherwise you have to use any powerful recovery tool like Android data recovery software. This is a powerful recovery tool that easily restores every erased data from Android without any backup.
See more on: https://.com/retrieve-lost-whatsapp-pictures/

Hi,

There are several ways by which the iTunes error 3600 can be solved. I have experienced it personally and I will suggest you to get out of the situation with ease.

Here I am going to give you some manual methods that will help you to fix iTunes error 3600 and they includes:

Method 1: Update iTunes to latest version

Method 2: Ensure computer is updated to latest operating system

Method 3: Restart iPhone and computer both

Method 4: Check USB port and cable properly

Method 5: Switch off Firewall and Anti-virus

Method 6: Reset Network Settings

Apart from these, you can go for any third party tool like iOS System Repair that works effectively to get out of the situation. But it is suggested to follow the manual methods first and I am sure that all these steps will help you to resolve iTunes error 3600 on your iPhone/iPad.
See more on: Top 7 Ways To Fix iTunes Error 3600 on iPhone XR/XS/XS Max/8/7

The situation you have come across is not a new one but several Android users has come across such problem before.

The 'no command' error can be solved by following some simple methods that I am going to suggest you.
First, to access your device in recovery mode, you have to follow the below key combinations:

Here is a list of key combinations that will surely help users to get rid of the error and can easily access recovery mode. Ensure to hold those keys for 20 seconds.

1. Press and hold Power+Volume Up keys.
2. Press and hold Power+Home+Volume Up keys.
3. Press and hold Power+Volume Down keys.
4. Press and hold Power+Home+Volume Down keys.
5. Press and hold Power+Home keys

Apart from these, you can wipe cache partition, install update manually, do factory reset etc to get out of the "No command" error on Android.

See more on:[FIXED]- “No Command” Error On Android In Recovery Mode

Hello,
Hopefully there are ways by which you can fix the error you are coming across your iPhone or iTunes. I would like to say that follow the below steps to get out of the problem:
Update iTunes to its latest version
iPhone needs rebooting
Check internet connection
Check Wi-Fi network
Check USB port and connector
Update your PC/Mac
For further steps, you should visit: 11 Top Methods To Fix iTunes Error 4013/4014 After iOS Upgrade

Viber messages are important for many people and when they are deleted accidentally then it becomes a question mark on how to get back deleted erased Viber messages on Android. Generally some messages are backed up and if possible then you can get them from backup.

If not possible then you can get back lost Viber messages using Android Data Recovery software. This is a third party professional tool that helps to recover every lost/deleted data from Android devices including Viber messages.

See more on: How to recover Viber messages on Android