I need to have more internal space. As I know I need to root my device to move my system apps to SD card. Thinking of rooting the device using Odin, I tried to generate a cf-auto-root file entering the device name as "Samsung Galaxy A 10". But, I was unable to generate it. Is that the way I should enter the model to generate the root file or is it unavailable for this model?

You need to patch file to flash using Odin to root device.
1. Download stock firmware for your device (google search will give you many sites to download it) some common are e.g. Sammobile, Samfirmware tool)
you need to download file according your region and model (Dial *#1234# will give you details of existing firmware, download accordingly).

2. Once you finish download, extract files and keep all files on PC.

3. From extracted files a file with name AP_[device_model_sw_ver].tar.md5 and BL_[device_model_sw_ver].tar.md5 copy them to your device.

4. Download Latest Magisk Manager and Install to your device.

5. Open Magisk Manager - Magisk (first one) - Install - select to "Select and Patch file" - Navigate file you have copied to device (AP_[device_model_sw_ver].tar.md5).

6. Magisk Manager will patch the whole firmware file and store the output to [Internal Storage]/Download/magisk_patched.tar

7. Copy patched file magisk_patched.tar to Your PC and rename to AP_magisk_patched.tar

8. Rename BL_[device_model_sw_ver].tar.md5 to BL_patched.tar

9. OpenBL_patched.tar using 7zip and remove vbmeta.img.lz4

10. Download latest Odin (link) and extract to a folder on PC (I recommend on desktop).

Now next step is to modification on device.

1 members found this post helpful.

Nice post - hard to argue that is isn't detailed enough ...