How should I update my phone to Marshmallow? SD card problems. - Android Q&A, Help & Troubleshooting

On my Lenovo A7000, a recent firmware update says that I can update to Marshmallow 6.0
I want to update but there was a message in red that I'm wary about.
If you previously switched the default storage device, after upgrading to Marshmallow the data and applications stored on your SD card may be lost. Please backup any important data.
What course of action should I take?
My default write is my SD card
I previously moved all my photos and videos to my SD card.
Should I backup both my internal storage and SD card or just my SD card?
Are there any other steps I'm missing?

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[Q] [GT-I9300] Can't install on SD card?

I just got this device. I can only move apps to SD card but what about those with huge data files? I tried putting data in SD card but it again redownloads files on phone storage? I am not rooted currently and I don't find any settings regarding installation storage settings.

Access/Backup previously formatted SD card as internal storage in Android

Hi, I formatted my SanDisk 16gb card as Internal Storage for my Android Marshmallow 6.0 Moto G 2nd Gen XT1068 *rooted* device. So far so good, the problem is that my phone was failing really bad yesterday not sure why, it won't move files from internal to the sd card so it was running out of space and the whole system started failing. I was not able to backup my SD card neither, because my developer options were blocked so no USB debugging available., I tried everything I found online, from stoping removing cache from Media internal app and some others, etc, and nothing worked.
So I decided to restore my phone to stock.
I did this and now it works fine, however it does not recognize my SD card (because it was formatted as internal storage with the "previous" device) so now I have a 16gb SD Card (4GB occupied) inaccessible to make a backup.
Is there a way to gain access to this SD card so I can move out all the files I've in there so I can format it again as internal storage?
Any information missing please ask,
Thanks in advance,
Denis.

Questions about 6.0+ SD Card options

Hello!
When I inserted my sd card into my phone, it gave me 2 options: one option was to use it as removable storage, and the other was to use it as internal storage. My question is, if I reformat the card as internal storage, can I still use the card in TWRP for backups and flashing, as well as for music and other various file storage? If not, what other method would be the best way to run large apps off the external sd? I currently have a galaxy s4, rooted on nougat 7.1.2.

Default storage on Acer Liquid Z630

Hi,
I own an Acer Liquid Z630 that I successfully rooted following this guide. I unlocked the bootloader, flashed TWRP and installed the SU zip, everything's working perfectly.
But during the process, my phone somehow decided to "switch" internal storage and external SD card, making SD card the default storage. SD card is now labelled as sdcard0 and internal memory as sdcard1, while it should be the opposite, and apps data are now written on the SD card instead of the internal memory.
When I unmount the SD card, internal storage becomes default storage again and is correctly labelled as sdcard0, but as soon as I mount it again, the same problem happens.
I want default storage to always be internal storage, even if the SD card is mounted, like it was before. I don't want my phone to write any file on my SD card, I only want files I put myself to be on my SD card.
I tried factory reset, but it remained the same. I did a little searching and saw a lot of threads with people asking how to make SD card the default storage (in my case, that's the exact opposite), but apparently, on Lollipop there's no way to change default storage. But it did change when I rooted my phone...
I also thought about updating to Marshmallow, as I heard storage is managed differently, but there's no official upgrade by Acer, and I could'nt find any unofficial port for Z630.
This has been bothering me for quite a while now and I don't konw what to do anymore, so any help would be greatly appreciated!
Thanks in advance!
Anyone ?
Shirheb said:
Anyone ?
Click to expand...
Click to collapse
I have an UNROOTED ACER LIQUID Z630 and it does the same.
Its not a matter of it being rooted or not; every time you mount an SD card, memory option nÂș1 for the mobile is SD card.

SD Card Adoptable Storage KEY file lost - Help

Hello all!
I had to do a factory restore to unlock the sim card for my phone. After this I proceeded to doing a TWRP restore and for some reason the partition on my SD card that has all my apps is not being recognized anymore.. When the phone booted it thought my sd card was new? I did noticed that my internal storage is wiped. I have to assume something is missing? Is there any way to manually allow android access to this adoptable storage partition? I am fully rooted and on CFW.
Information:
Galaxy S5
Android 6.0.1
NOTE: My SD card is formatted with adoptable storage.
It appears that adoptable storage utilizes a .key file in the data\misc\vold folder - even doing a twrp backup it came up blank - it seems twrp does not back this up?
wtf - is there ANY way to recover this at this point??

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