Just wanted to alert people to a wrinkle I discovered today. When formatting an SD card as internal storage on an HTC 10 is still not true internal storage. I purchased a 32 GB HTC 10 about a month age and have generally been very happy with it. I put a 128GB card in the phone and formatted as internal memory - no probs. I checked that the phone was seeing the 128GB as internal storage and it was. Today I decided I would transfer my music files from my PC to the phone - about 50GB in all - using Windows Explorer. I transferred one or two artists folders to the music folder on the phone and then tested whether my Poweramp app would recognise and play the music. It did so. All good so far. I then set the rest of the music to copy but once the total data on the phone reached just under 32GB the data transfer ceased and I got the message that there was no more storage on the HTC. I contacted HTC support about this and they told me this was not a fault but is the way the phone is designed. I was told that the phone will use the SD card as "internal memory" for downloaded apps or data the phone itself creates, but that you cannot transfer data to it using a manual file transfer process. They insisted this was not a fault or a design deficiency but just a feature of the way the storage management works and there are no plans to fix this. Further, I was told that as of now, you cannot transfer data from the 32GB of internal memory to the SD card but that this is a bug and will be fixed in time. I am somewhat incredulous at this view that "internal memory" on an SD card is not really internal memory. It seems to me to make a farce of the feature and that users are much better off formatting their SD cards as portable storage. Perhaps I should have done more homework or read the fine print but I bought the line that I could put up to 2TB of memory in the phone via an SD card (notwithstanding that 128GB seems to be largest card you can buy today) and that it could be formatted to behave just like internal memory. It doesn't. It is nothing like internal memory and people should not think that there is equivalence in buying a HTC10 with a 128GB card and for example buying another brand of phone that has a true 128GB of internal memory. I think HTC should be clearer about that when promoting the feature. I have now reformatted the SD card as portable storage and will again try to transfer my files. I am assured that the my music app will still work with the phone set up that way.
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