Adoptable Storage Mounting Issue [ Strangest Scenario ] - Desire 816 Q&A, Help & Troubleshooting

I've been exploiting my mobile at it max since I got the Marshmallow update. Adopted a UHS-1 Samsung EVO 32GB card and used it to its limits.
It has been working fine until today, I woke up to a app screen where all my SD card apps were disconnected and said "App not installed", immediately I went to Storage settings and there I saw that around 100mb was left in my SD card and the bar was red. When I opened it, all the subheading, that is, music, images, videos, all of them show 0.00bytes whereas downloads folder could be accessed.
Tried deleting some files from SD card, managed to get some space from that downloads folder but it didnt work, now the strangest thing started to happen. I tried uninstalling the apps that were on SD card which showed "app not found" and I managed to uninstall them and this also freed up space on my card. Restarted my phone, still no luck.
Next up, I tried migrating data onto my ORIGINAL internal storage (8gb), and it did transfer some data, after maxing out, it said "data left at original location".
All in all, my problem is, that I'm not able to properly mount my SD card, the data is there, but no app is able to access any of it except the internal functions of HTC, like 'migrate' and all.
Need help, please let me know what should I do.
Another question is, if I root my mobile without the SD card and then re-insert the 'adopted sd card' after the root, will it read it? If that would be the case, I'd root my mobile any second. Thank you, eagerly waiting for your replies.

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[Q] Epic 4g Microsdhc issue and One Click Root & Recovery v2.5.5

Hi,
Please forgive me if this is a noob question. I recently developed an issue transferring files to the sd card. Using the usb storage method, after transfering 2 or 3 mp3s, the phone would shut off and reboot for no reason (This caused the Zeam launcher to crash apparently? for at least 15 tries)
I tried using the SD adapter, the transfer rate is extremely slow or to no transfer at all and causes windows explorer to crash or hang (tried at least 15x).
I figured my sd card was corrupted so I tried formatting the card. If I used the SD adapter, it would say the card is write-protected even though clearly, the locked was off. I even tried another SD-adapter to no avail.
Finally, using USB storage, I was able to format the SD card.
Since I mentioned earlier that the Zeam launcher crashed, (yes, I selected always use "zeam launcher" even after it crashed causing the error message to loop) I resetted the phone with the wipe data/factory rest option in clockworkmod (I'm using ViperRom 3.03).
I wasn't sure if the 1 click root (http://forum.xda-developers.com/showthread.php?t=770388) installed any folders into the sd card so I ran the 1 click root in windows just to make sure. After rebooting from the 1 click root, all the files that were previously formatted were back.
I guess I didn't read too clearly but
my questions is
1) how am I able to disable that backup function? I had a bunch of files (which I have no idea what they did) from when i first started playing with the phone and I want to start off fresh with just the files I need.
2) anyone have any idea why the sd card was unable to accept files through the SD adapter or USB storage method?
3) what to do when the launcher crashes (this happened to me 2x already where I lost all my data)
Thanks to anyone who can help. This will help me close some gaps in my limited Android/Epic 4g knowledge.
definitely something is weird. Using usb storage, I ran the scandisk to fix errors and some errors were found. I formatted to ntfs just for kicks and the sd card read blank and in properties the drive had nothing in use. I turned off usb storage, turned it back on and voila, all the files that weren't there are now back. It this a sign of a corrupted sd card or am I going crazy?
Which files/folders are you referring to? Because as soon as your phone mounts your sd card, it will write about 4 folders (I think) if they are not already there...
.android_secure
Android
DCIM
LOST.DIR
if I recall correctly. The other thing you can do is use your phone to format your card instead of doing it on a computer... go to 'Settings->SD card and phone storage->Unmount SD card' then after it is unmounted, use the 'Format SD card' option. If this doesn't work, then you may need a new sd card/phone.

SD card read/write problems Sprint Tab 3 7 inch UNSOLVED AGAIN

I am rooted, running Negalite WondeROM v2. Stock kernel. Half the time, when I boot, the contents of my SD card dont show up. I get the gray squares, and when i try to open apps that are on my card, it says that they are not installed, or that I need to download the additional data(which I have already downloaded). Hot boot fixes it. And it doesn't happen all the time. Today, I was trying to update a game I purchased from the Play store, and I keep getting a message saying that I have insufficient external storage space. I have over 9Gb left on a 16Gb card. I used the Android applucation manager to move my apps to external SD, and not an app or anything. I have unmounted, removed, re-inserted and re-mounted my SD card, and the problem is unchanged. My internal storage is close to full, if that makes any difference. I have downloaded an SD fixer app, but when I opened it, it said that my SD was already writeable. Any input or advice would be appreciated. Thanks.
Edit: making 5Gb space on INTERNAL storage seems to have solved the problem. Sorry for wasting everyone's time. Mods please close thread, OP a jackass.
Edit 2: nope, problem persists. Anyone have any sugestions?

SD Card "disappears"

Hello everyone.
My main issue for a few months has been the microSD card. Before I unlocked the bootloader, rooted and installed custom ROMs, my SD card worked fine, which was a SanDisk Ultra Class 10 32GB. After doing those things, my microSD card (or my phone) has been suffering a problem where it either corrupts or it disappears from the configurations of the phone, even after buying a SanDisk Ultra 64GB microSD card. I even unrooted, reinstalled the stock ROM and locked the bootloader but this keep happening.
This is incredibly frustating, because my main use for the card is Spotify, Netflix and Youtube Go! (I like to download everything on the highest quality possible) and every time it corrupts or dissapears I have to format the card and download everything once again. I even tried formatting it for internal storage but it dissapeared out of the blue other day just like it happens when it's setup as external storage.
Does anyone else have the same issue or know any fix to this?
It may be a hardware issue with the sd card reader
Exanneon said:
It may be a hardware issue with the sd card reader
Click to expand...
Click to collapse
And only Motorola would be able to fix it?
A hardware specialist could, it's not just limited to Motorola workers.
I have similar problem/s
A. It takes a lot of time until card is ready
B. After it shows as ready, it can dissappear after a few min.
I u reinsert it, it takes more time, and sometimes fixes the issue.
The weird part. If it is ok, it will work like that until next reboot.
I really dislike this phone.
NM99 said:
Hello everyone.
My main issue for a few months has been the microSD card. Before I unlocked the bootloader, rooted and installed custom ROMs, my SD card worked fine, which was a SanDisk Ultra Class 10 32GB. After doing those things, my microSD card (or my phone) has been suffering a problem where it either corrupts or it disappears from the configurations of the phone, even after buying a SanDisk Ultra 64GB microSD card. I even unrooted, reinstalled the stock ROM and locked the bootloader but this keep happening.
This is incredibly frustating, because my main use for the card is Spotify, Netflix and Youtube Go! (I like to download everything on the highest quality possible) and every time it corrupts or dissapears I have to format the card and download everything once again. I even tried formatting it for internal storage but it dissapeared out of the blue other day just like it happens when it's setup as external storage.
Does anyone else have the same issue or know any fix to this?
Click to expand...
Click to collapse
You don't need to format it
If it says sd card corrupted when you turn the phone on simply remove the sdcard (whilst the phone is still on) wait a few seconds then put it back in again
This works if formatted as external storage - not tried as internal as I don't see benefits in this
TheFixItMan said:
You don't need to format it
If it says sd card corrupted when you turn the phone on simply remove the sdcard (whilst the phone is still on) wait a few seconds then put it back in again
This works if formatted as external storage - not tried as internal as I don't see benefits in this
Click to expand...
Click to collapse
It says SD card corrupted while using the cell phone. Like, let's put this situation:
I had downloaded all my Spotify songs in the highest quality they allowed, listened to them while coming back from University on a Tuesday night. I put my G5 to charge during my sleep. When I wake up the next day to go to work, I cannot access any of the music, because suddenly my SD card disappeared from the cell phones (if I go check in the settings, it says 24,59 GB instead of 84,06 GB). After a few minutes, the SD card re-appears but says it's corrupted.
Since creating this thread, I haven't added anything to the SD card and I never got the issue again, so I'm pretty sure it's something with the way Spotify files work.
NM99 said:
It says SD card corrupted while using the cell phone. Like, let's put this situation:
I had downloaded all my Spotify songs in the highest quality they allowed, listened to them while coming back from University on a Tuesday night. I put my G5 to charge during my sleep. When I wake up the next day to go to work, I cannot access any of the music, because suddenly my SD card disappeared from the cell phones (if I go check in the settings, it says 24,59 GB instead of 84,06 GB). After a few minutes, the SD card re-appears but says it's corrupted.
Since creating this thread, I haven't added anything to the SD card and I never got the issue again, so I'm pretty sure it's something with the way Spotify files work.
Click to expand...
Click to collapse
Have you tried connecting your sd card to the pc and check for the available space ? If it does then copy the data to your pc, format your sd card (ControlPanel>Administrative Tools>Computer Management>Disk manager).
Then re-insert the blank sd card into your phone and see if it shows up.

cannot access phone internal storage (a2 lite).

hi folks,
So i chose the wrong SD card handling (the merged kind?) a while ago and after ejecting the card to set up a bigger one, I realise I now can't access the internal storage on the phone.
installed apps work fine
I can remove apps fine (but not reinstall!)
i can sideload apps fine (oddy!)
I cannot access e.g. photos with gallery apps
file browser apps cant access the internal space at all.
I cannot install anything from the play store, it just shows insuffucient space
apps like twitter crash.
whatsapp works (calls and text), but cant download photos sent, or attach photos.
There is loads of space free (14.65gb used of 32gb internal).
I also have an SD card with loads of space now set as portable storage.
I have the original SD card that was in before, but not in phone (still shows in storage manager).
Any ideas please?! Before i reset the phone and start again!
I have rooted it, but not sure what to fiddle with (the problem started before rooting).
nope? ok i guess i'll be wiping and hoping that fixes it!
moving to another phone for a while...
just to be clear, doing a full reset on the phone while rooted with magisk is ok? (unlocked bl). don't want to brick. android 10 up to date.
thanks, if anyone out there?
alright for the record and anyone else suffering this, i figured it out, and is slightly embarrassingly stupid.
if you set up the sd as combined storage, and still have the sd, put it back in and use the migrate data back to internal option which is hidden in the storage dot top right menu. voila.
then you can eject card, and still access the internal storage.
what you do if you've already wiped the old sd, i've no idea! you're maybe stuffed? hopefully wiping phone would fix it??
don't ever set your sd card as merged, use portable (i knew this, was a mistake).
so anyway, phone working again yay!

[Method] Merging SD Card with Internal Storage

This post documents a method of enabling Adoptable Storage with adb commands on sony phones where previously similar solutions seem hard to find. Please link similar methods if they exist somewhere else, I am curious to read.
Personal success on SO-02K (NTT DoCoMo XZ1c ) fw version 47.2.B.5.38 Android Pie, 128G A2 card.
The method results in a fraction of the microSD Card being recognised by the system to be able to transfer apps to, and another fraction where the sd card remains external storage.
The Stock Camera will only be able to save to the mentioned external storage partition after this process, and it will fail to save to internal storage.
Some apps may not work when transferred to the sd card and have to stay in onboard storage.
Premise
I carried out the process with a freshly flashed phone, with a minimal amount of apps present in the system. I cannot guarantee same success with an almost-full phone, although in principle it should be the same. If anyone has success on a more full system please let me and others know.
ADB Debugging should be turned on in developer options and authorization of PC given in advance; root or bl unlock not necessary.
SD Card will be WIPED in the process. For your data's safety do backup everything on your phone, both internal memory and external memory before proceeding! Don't yell at me if in the end it'll have to be restored.
Process
adb shell
sm list-disks this should return two integers such as 179,0
sm partition disk:179,0 mixed xx where the 179,0 should be your result in step 2 and xx be the amount of space reserved for /sdcard ; wait until command finishes. For the mixed xx see Miscellaneous#2 for explanation. Please also reply if you know the command to revert the changes made in this step, because I'd expect it be useful in the future and I don't know what it is.
Turn on force allow apps on external in bottom of developer settings if haven't done so.
Open camera app, click on OK until warnings go away, then set save directory in SD Card. Test if it saves successfully, if not, see Miscellaneous#1.
Reboot, then try moving some apps to your sd card! Some core function apps are not movable; that is to be expected.
Miscellaneous
If your camera won't allow you to open up settings (keeps saying cannot save), then you have run into a problem I have never seen before. If you can go into camera settings but the SD Card option is greyed out, that means either you have not reserved enough space in mixed xx or the command may have gone wrong. Or the card may not be in perfect condition for Adoptable Storage. You can unplug the sd card to see if the camera works fine after that, but I haven't tried that. If anyone knows the corresponding command to revert the changes made in Process#3, please let everyone know!
The mixed xx part allows a part of the sd card to remain.... an sd card. xx% of the space in your card will be recognised as external(portable) storage by your phone, and is readable by a PC. This portion will be the place where your future photos and videos are saved in, as the camera will fail saving to internal space. Thus you may want to use the fastest card you have and set xx based on your use patterns. The other part, the (100-xx) % of space is recognised by the phone as internal storage that it can put apps in, although some apps (especially some games) will still save assets in the phone's on board storage no matter where you move the main app.
This post is re-written from original post(chinese)
Thanks for sharing this but in my experience it does not work. I followed the guide and It looks like it worked, however now I don't understand how to move the apps away from the internal memory to exploit the new storage space provided by the SD "internal" memory... each time I try to move an app I get a "not enough memory" error message although there are about 64Gb free, no matter what app I try moving. I also noticed that deleting an app from the phone and then re-installing the app in the phone will finally install it in the SD but several apps I tried didn't work any more once re-installed in the SD storage.
indago said:
Thanks for sharing this but in my experience it does not work. I followed the guide and It looks like it worked, however now I don't understand how to move the apps away from the internal memory to exploit the new storage space provided by the SD "internal" memory... each time I try to move an app I get a "not enough memory" error message although there are about 64Gb free, no matter what app I try moving. I also noticed that deleting an app from the phone and then re-installing the app in the phone will finally install it in the SD but several apps I tried didn't work any more once re-installed in the SD storage.
Click to expand...
Click to collapse
Hi and Merry Christmas!
I do get system warnings saying the phone is full while it isn't; it seems that Android freaks out a little trying to gather disk usage info when the SD card is merged with internal space. However I can move most non-system-apps.
Did you move the app with the (Press&Hold App Icon)->App Info ->Storage->Change function? I found I didn't include this part in the original writing and might have been a source of confusion. Assuming it was done in App Info, could you tell me what apps don't work, and perhaps I can try on my phone. I also wonder how much storage did you allocate to each of the two partitions on the SD card.
Another potential source of error is the card itself, in some cases, the card may have bad blocks that Android doesn't correct for and cause read problems, as my SD card now begins to show. Sometimes I wake up to see my home screen devoid of apps, and I have to reinsert and restart the phone multiple times before the SD card gets recognized by the phone again.
Did you move the app with the (Press&Hold App Icon)->App Info ->Storage->Change function?
Click to expand...
Click to collapse
yes.
Assuming it was done in App Info, could you tell me what apps don't work
Click to expand...
Click to collapse
all. I was not able to move any app.
I also wonder how much storage did you allocate to each of the two partitions on the SD card
Click to expand...
Click to collapse
50% of 128Gb, that is 64Gb each.
Another potential source of error is the card itself
Click to expand...
Click to collapse
it doesn't seem the card, since the remaining 64Gb left for external storage, that is where the camera app is saving photos and videos and some other apps save data, still works fine.
Here it is the screenshot of how Android now sees the storage configuration (android settings > storage) after I performed the procedure described above for configuring adoptable storage (writings are in Italian but I think it should be easy to understand).
indago said:
Here it is the screenshot of how Android now sees the storage configuration (android settings > storage) after I performed the procedure described above for configuring adoptable storage (writings are in Italian but I think it should be easy to understand).
Click to expand...
Click to collapse
mine looks the same. I don't know what to suggest. I'll look around on other forums to see if people have the same problem.
This post is re-written from original post in Chinese which in turn is adapted from a lost post on gfan.com.
It also turns out that googling sm partition would give a lot of information most dated back to android 6.
I've been looking around as well, but was able to find only people reporting failures in enabling odoptable storage on Sony devices. However, one difference between your phone and mine is fw version: mine has 47.2.A.11.228 (no brand) - don't know if this can make any real difference.
By the way, I'm wondering whether it could be possibile to install a rarely-used app in the internal memory, then "park" the app in the SD card's external memory by moving its files, then eventually move it back to internal memory only in the case you need opening that app. If it works, it could be a trick for keeping all the apps you want "freezed" in the phone, by taking the usually unused apps in the external memory, then moving one of them in the internal memory only in the rare circumstance you need using it. Then moving it back to the external memory if you think you won't use it any more for a long period. Obviously one could simply uninstall and reinstall those rarely-used apps on occurrence, but that would take more time, consume data traffic and lose the app existing data, so I think that >IF< this kind of trick could be feasible, I'd go for it.
indago said:
I've been looking around as well, but was able to find only people reporting failures in enabling odoptable storage on Sony devices. However, one difference between your phone and mine is fw version: mine has 47.2.A.11.228 (no brand) - don't know if this can make any real difference.
By the way, I'm wondering whether it could be possibile to install a rarely-used app in the internal memory, then "park" the app in the SD card's external memory by moving its files, then eventually move it back to internal memory only in the case you need opening that app. If it works, it could be a trick for keeping all the apps you want "freezed" in the phone, by taking the usually unused apps in the external memory, then moving one of them in the internal memory only in the rare circumstance you need using it. Then moving it back to the external memory if you think you won't use it any more for a long period. Obviously one could simply uninstall and reinstall those rarely-used apps on occurrence, but that would take more time, consume data traffic and lose the app existing data, so I think that >IF< this kind of trick could be feasible, I'd go for it.
Click to expand...
Click to collapse
Striking news in the new year-- my sd doesn't work now. Yesterday I checked everything worked, but now no apps installed on my sd card open. using sm list-volumes shows both internal and portable partitions on the SD are mounted, but the apps still refuse to open.
The card looks like it's corrupted, now the two partitions can't even be recognized with my card reader, I guess I'm screwed.
at my asus max m2 .... working, camera, i can move app to sd card and they still works
butttt the only thing is at settings/storage/ information; it shows numbers that dont are correct and a option "to forget sd card " ?!?!?
well i don't know.....

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