Android 10 - MicroSD as phone storage

I have just tried an Internal formatting of the SD card and the Storage Memory readings are a bit weird.

Note the SD card is listed as 32Gg when is is only 16Gb. It appears as though it has added the used memory in the SSD to that of the SD card ???

When the SD-card is added to the internal memory, the used space is added together, as they are both part of the same logical volume.


I imagine something like that, but do not understand the reasoning. It doesn’t make any sense to me and looks all wrong :no_mouth:

Why does it look wrong?
You decided to add more memory to the internal storage. Now it is 96 (64+32)GB instead of 64GB. And 33.5(16,74+16,75)GB of it is already used, sounds completely logical to me.


Ha! That not quite right I added a 16Gb and anyway if I had added 32Gb why would it show 16,67Gb used on a newly formatted SD?

Apologies my initial post

has been edited to
Note the SD card is listed as 32Gg when is is only 16Gb.

I tried it twice, reformatting to portable, removing, reinserting etc. ??

It’s showing, that you added a 32GB card. And didn’t it move some data to the card after opting for the internal extension?
Another possibility is, that on the card you already had two 16GB partitions and now only one of it is used for the memory extension and the second one is unreachable, therefore marked as ‘used’.

Yes what you say makes sense but
Here’s the SD card some many years old.

There was no data on it to start with before I inserted it and formatted it as Internal

Even though the SD was reformatted as portable after my test it still has the Android folders, all of which are empty
and here’s the content according to my RaspPi desktop with 14.9Gb free

I’ve got to get away from this computer, been on it soo long today.

Pick up later.

Thanks for your interest.

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That’s strange, indeed. Maybe something is wrong in the header of the card, which makes the phone believe, it’s a 32GB drive.

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Half an hour of hand mowing grass and I’m back. I know it’s a bit weird.
All other devices see it as it is ??

All my SD cards are old, pre Fairphone existence, very small dinosaurs like me…

I’ll try and swap content from my currently portable 8Gb to the 16 and do some more tests.

I still don’t get it adding all the SSD card usage to the memory storage output reading. ??


I still don’t get, what you mean. Just because the figures look a bit similar, it’s not exactly the same.

Well why is there any reading of 16.75 Gb on a 16Gb Sd which only holds about 15Gb when formatted. Off to the marsh for an hour to do some weeding of invasive plants.

Speak later
Thanks again

OK have cleared my 8Gb SD and formatted that as internal that and all seems normal, so there must be some duff info being calculated by adding the system usage to the 16Gb card. A query for another maybe, as if I don’t have enough to do.

Thanks for all your support, it’s very much appreciated.

Because of the erroneous use of Decimal prefixes as Binary prefixes. 16GB means Bytes, which accumulates to round about 14,9GiB, see: Binary prefix - Wikipedia

Yes I’m aware of that, thanks, there still this weird screen reading that says there’s some 16.75Gb used on the 16Gb card with 16Gb left.

Anyway I’ve swapped my 8Gb portable for the 16Gb, who knows when I may want to do an extended video. :slight_smile:

All the best.

And the “format as internal storage”-bug strikes again… I just came here to say, it’s still happening.

@Dionysos I feel you. It’s super frustrating that this is not fixed yet. I also recommended the fairphone again and again.

Naturally pictures can be something very personal and I feel quite emotional about loosing this kind of data. I do have a backup of my pictures but all the whatsapp photos of my friends and family sent during covid are gone. I know they can be resend, but honestly, this should not have happend.

Hi Issi Welcome to the forum.

This issue is reported on other phones to since Android 6 ??
I presume you didn’t look up the implications before you selected ‘internal’

It would be nice to have a warning but the OS that Fairphone use has to be verified by Google, via some 500,000 tests so I can’t see google allowing that.

Anyway just in case someone else sees your post here, again, is a link to a warning

Where did you see this?
The guide you linked to was created when A6 came out, but it was updated since. Although internal storage has some known vulnerabilities, it should not create such issues on the phone as it does on the FP3 under A10, and it is a bug.

As most users do, and this is the default option. It’s to be expected.

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No, actually it didn’t occur to me that such a simple looking action could have such a big impact nowadays. It might have been an reported since Android 6, but I never heard of it, because I only had the fairphone 1 before.

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In the following post there’s mention of a Samsung and in 2019 fro the FP2

As @AnotherElk has said, it’s a bad idea. This is why the GUI option has been removed - to shield users from creating a situation where they can lose all of their data should their SD card malfunction.

Looking for other references and will update

Yes the default option, in all aspects of consumerism is nearly always a problem. Do I really have to go along with the default? Can I think as an individual and question that which I’m presented with. (OK that’s all a bit harsh, but true)

If I was to generally default I wouldn’t have come across the Fairphone, but given Android is the default OS I have to be carefull.

The sad thing is that I didn’t even just go along with the default option. I even tought about my actions, I just didn’t have enough knowledge at the point and I didn’t even know that there is so much I should know as I never came across a similar issue.

Honestly, I just thought it sounds good! Formatting the sd in the internal format seemed a pretty good option to me because I assumed it can handle it better if it’s in the native system format and therefore cause less troubles. Boy was I wrong.

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