Android is an operating system for smartphones and tablets. One of the most amazing features of Android OS is that you can edit almost any file in the system. (This also includes images that you have taken with your device, or perhaps downloaded from the internet). If you want to view these images or other media, whether on your computer or elsewhere, an SD card is all you need.
Steps
Part 1 of 2: Check your phone
Make sure your device has an external SD card. Unfortunately, if you don't have this on your mobile or tablet, you can't use this article.

Step 1. Check if your phone has an SD card or if it supports it
Look for a port on the side or inside of the device (near the battery). These are the places where an SD input can usually be found.
You can also check this via the menu of your device. Go to Settings and then to the Storage section. Your SD card information should be listed here. If you don't see any mention of a memory card, your phone may not support it, or there may be no SD card present

Step 2. Check if your phone has a file explorer
This is standard with most Android devices. This is similar to the explorer on your computer. Look for such an app on your device.
If this is not the case, you can download various file explorers from Google Play. All of these apps work in much the same way
Part 2 of 2: Moving images from Android to SD

Step 1. Launch the File Explorer
Tap its icon to open it.

Step 2. Go to your phone's memory card
This is often indicated by “phone” or “tablet”. If not, it may also be listed as “/storage”.

Step 3. Go to the storage location of the images you want to move
The location of the images depends on the app you used to create or download them:
- Most photo taking apps create their own folder where the photos are stored; the folders are usually named after the app that created them, so it shouldn't be that hard to find them.
- Pictures taken with your camera are usually stored in a folder called DCIM, right in the root directory of the memory.

Step 4. Open the folder and select the photos you want to move

Step 5. Tap on the menu of the app and use the option “Move”
The location of the menu and options will vary depending on the file explorer you are using, but the feature works in much the same way for all explorers.

Step 6. Go to the SD card
As in part 2, most file explorers will indicate SD memory as “External Memory”, or SD.
For other apps, search under “ext” with the name behind it (ie: extmem)

Step 7. Go to the location where you want to move the photos
Find a folder or create a new folder (you can also do that with a file explorer).

Step 8. Paste your photos
Once you have found the correct location, open the app's menu and use the Paste function to move the photos from your Android to the SD card.
Tips
- Some file explorer apps have the ability to move all your images found on your mobile to the SD card. Please read the description of the app on Google Play before downloading it to make sure it has this feature.
- Most file explorers are free, but you need a working internet connection to download them. Read the terms and conditions of your internet subscription carefully to avoid unexpected costs.