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Windows 10 Lock Screen Background Picture Location

Windows 10 Lock Screen Background Picture Folder Windows 10 Lock Screen Background Picture Location Open this folder using Windows Explorer %USERPROFILE%\AppData\Local\Packages\Microsoft.Windows.ContentDeliveryManager_cw5n1h2txyewy\LocalState\Assets But files do not have an extension. How to open the lock screen background picture Do not change these files, Just copy all these files to a temp folder. After copying the files to the folder, then open the command line window by typing CMD in the address bar of that folder. It will open up the command line window.  Then type ren *.* *.jpg Now you will be able to open or even see them from the thumbnail view.
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Android - error retrieving information from server df-dferh-01

Google Play Store: error retrieving information from server df-dferh-01

I have an Amaze 7 Android tablet. It is an old tablet with Android 4.1.1. The Hongkong based manufacturers of this tablet have vanished, and there are no updates for years. Most of the time it freezes. I tried lots of suggested solutions.  Even tried to flash a custom ROM. But there is no custom ROM for this tablet. 

Recently I did a Factory Reset on this tablet. Then When I tried to use Google Play Store to install new apps, the above error popped up. So I searched the internet by googling & bing-ing.  

If you search the internet for a solution for this error, you see the following type of answers. There are so many articles that explain the same.

Clear cache and data from Play Store:

1. Open the device Settings app Settings.

2. Tap Apps & notifications and later See all applications.

3. Scroll down and tap Google Play Store Google Play.

4. Tap Storage and later Clear cache.

5. Then tap Clear data.

6. Re-open the Play Store and start the download again.

Restart your device:

After clearing the cache and data from the Play Store, if you still can't download apps, restart the device.

1. Press & Hold down the Power button until the menu appears.

2. Tap Power Off or Restart if this is an option.

3. If necessary, press and hold the power button until the device turns on again.

Reference Google Play Help

Uninstall Google Play Updates

You will find this in most other articles and YouTube videos.  
In my case, I do not have any updates since I reset the device to factory settings.


Reset your Google Account

You will find this in most other articles and YouTube videos. 

Update Android OS

You will find this in most other articles and YouTube videos.  
In my case, since the manufacturers are nowhere to find there were no OS updates are available.

But none of those worked for me, I couldn't install any app since the Google Play Store is not working. So I figured out how to install manually as a developer account enabled.   

Update Google Play Store Manually


Luckily I found there are 2 sites that provide Google Play Store APK downloads.

First I tried Apkpure and it didn't go smoothly since it need to install another app before installing Google Play Store. 

So I tried the APKMirror. And it worked without any issue. I didn't install the latest update instead I used the latest matching update for Android 4.1.x. All I have done is downloaded directly from the browser on the tablet. and then installed by double-clicking the file.

The good thing is after installing and several minutes later it automatically found updates for other Apps as well.




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