[Samsung Galaxy Tab A series Questions & Answers] BBCro:
Hello all,

Hopefully I'm posting this in the correct section and someone can help me with my dilemma.. 😳🥺

I have a Samsung Galaxy Tab A, Model #T510, running stock Android 9 Pie (I believe).

I was trying to clear up space in the file system yesterday when a system update window came up. I tried to schedule for later and it started the install anyways. Shortly after it started the update, it stopped because of "low storage" and got stuck in a Boot Loop of the Samsung logo screen.

It then goes to the Android Recovery with the following error:

"Perform Lacking Storage Booting"

*(See image 1 for actual screen)

It gives me the following options:

"-Reboot to bootloader

-Apply update from ADB

-Apply update from SD card

-Wipe data/factory reset

-Wipe cache partition

-Mount /system

-View recovery logs

-Run graphics test

-Run locale test

-Power off"

View attachment 5596551

I have tried Powering Off, Checking the Rescue Logs, and Rebooting. All result in a continuous boot loop, until it eventually kicks me back to the Recovery Page. I've wiped the cache partition, and it didn't make a difference. Still stuck in boot loop before being kicked back to Recovery.

However, when I try "Reboot to bootloader", it gives me a different screen (See image 2) with the following four options:

"Android Recovery

samsung/gtalxlwifixx/gtalxlwifi 10/0P1A. 190711.020/TS10XXU3BTFH

user/release-keys

Android Recovery 10/0P1A. 190711.020/TS10XXU3BTPN

user/release-keys

Use volume up/down and power. Your phone couldn't start normally. Some configuration data may be corrupt. Follow the instructions:

1. Try again

Restart your phone. If your phone continues to be unable to start, go to the next step.

2. Erase app data

Deleting app configuration data may allow your phone to start in Safe mode. Safe mode allows access to basic functions, so you can back up any important data stored on your phone. After backing up your data, a factory reset may be needed to get your phone to start normally.

3. Visit a service center

If you don't want to erase your app data or your phone still doesn't start, visit a service center for assistance.

-Try again

-Erase app data

-Power off

-View rescue log

#Reboot Recovery Cause is [system server:10028 RecoverySystemRescueParty] E: [libfs ngr]Unable to disable quotas on /dev/block/platform/13500000.dmmce/by-name/userdata becaus /system/bin/tune2fs is missing #Reason is [RescueParty] Supported API: 3"

View attachment 5596553

So, here is my dilemma...

I have already backed up the SD card that I was using in the tablet, as I was able to extract it's contents onto my PC without issue, (after taking it out of the tablet).

BUT I can't find a way to access the internal storage!! I need to get in to backup my files because my daughter uses it for homeschooling and she's done a ton of work since my last full backup (roughly a month ago).

I've tried connecting the tablet via USB data to my laptop, to see if I could open it from there, as a storage device...

No-go. PC doesn't recognize it at all.

I've tried backing it up through my Samsung Account, and Find My Mobile and can't because the tablet can't connect to my network... (Because I can't get it to boot into Android)

I've accepted the fact that I will most likely have to do a factory reset, but I need to get my data off first.

Does anyone know of a way I can back up the internal storage outside of Android?

Or how to get into this magical Safe Mode?

I've been trying different things since yesterday and can't find a solution. I've thought about trying the "Erase App Data" option in the Recovery page, as it talks about the ability to load into Safe Mode.

But if I do that, will I actually lose everything? Has anyone used this function before?

I would greatly appreciate any help I can get. I'm a certified tech with Dell (albeit years ago now), so I've tried a few tricks of the trade, but as everyone knows... Because I didn't root it in the beginning, I can't use the exploit commands without tripping Knox. So I can't even back it up via TWRP.

And as usual, Samsung has been no help. They won't say whether or not the data can be backed up or recovered, they are defaulting to sending it out for repair.

All I'm looking for is to find out IF it's possible. If it is, then there is a solution.

I'm so frustrated with it, that I've considered using it for target practice 😳🤭 But because my daughter's schoolwork is on it, and she's quite the little novelist (she's only 10 haha)... She is a puddle of emotion at the moment because she thinks everything has been erased.

So, if anyone knows more info on this.. I beg for your assistance! I'm always trying to gain more knowledge and stay current, so I'm open to suggestions!!

Thank you in advance, let me know if further details are needed. 😊