How to Transfer Data to Micro SD in ULEFONE Armor 6E

Great info, thanks for your help!

What about copying music files from PC to it? I want to use the Armour 6e as an Mp3 player

Ulefone 6000+ after using it with one SIM and one SD card, as an internal storage. How do I reverse it, so that I can use 2 SIM cards and no SD Card? Putting back the system and all other files that are on the SD Card back into the Ulefone internal memory/storage.

Thanks,. Really helpful. My husband was going mad trying to work this out ;)