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jpmoreau
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Samsung Tablette

Hi. I have an issue with a Samsung Galaxy Tab 10.1 that is stuck on the Samsung logo at startup. I want to connect it on a USB port on a PC to retrive the data before factory reset. The PC doesn't seems to recognize it.

Is there a trick to extract the datas from this thing?

Thanks
TabletsAndroidHardware

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skullnobrains

8/22/2022 - Mon
Edward Pamias

Try holding the power button and the volume down button for 10-15 seconds. Then try to turn it on again use the Samsung app on their site to back it up.
skullnobrains

try the usual voldown+middle_button+power reboot. if you manage to get the blue boot screen, you are likely to be able to see all partitions including system partitions as if you plugged a bunch of usb keys. if you see the red one, you might be able to use adb
Jackie Man

How old is your tablet?

You might need to dissemble your tablet to get out the battery first if the above advices do not work.

Stuck at logo might means two things. Either the bootloader is crashed or there is hardware damage of the logic board.
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jpmoreau

ASKER
Ok. But do you know how to dissemble whitout breaking it? I already tried all the previous steps.
skullnobrains

did you manage to get any startup screen other than the samsung logo ( which implies you were already starting the main OS )
jpmoreau

ASKER
I see the samsung logo and it stucked there
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skullnobrains

did you actually try "voldown+middle_button+power reboot" and similar combinations including possible ones specific to your own model ? you really should give it one more try because these combinations are normally detected before the logo has a chance to appear...

if not : https://www.youtube.com/watch?v=SdFxzq40Niw will show you how to disassemble ( I feel like a google monkey on this one ). if you're lucky enough the sd card containing your precious data is not soldered and can be plugged into a card reader.
Jackie Man

Samsung KLMAG2GE4A NAND flash memory is the internal storage and it is soldered (green box below).

https://www.ifixit.com/Teardown/Samsung+Galaxy+Note+10.1+Teardown/10144

Logic  board of Samsung  Note 10.1
Also, do you see the battery charging icon when you are charging the tablet?
Jackie Man

There are forensic  tools to read the NAND flash memory but should be pretty expensive and most users cannot afford to buy.
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Jackie Man

But do you know how to dissemble whitout breaking it?

It I better to leave the job to specialists in repair outlets.
skullnobrains

+1 unsoldering and attempting to read the nand chip will most likely result in a broken tablet and no data unless you really have experience with these... sorry but unless you manage to grab one of the debug screens, this looks like a dead end.
jpmoreau

ASKER
Thanks everyone.

I can reach the debug screen and I have the choice to factory default and erase all data or clear cache partition and all these options. I have try evrything an nothing revive the tablet. I will maybe try to disamble it for the flash memory card. It is my last chance I think.
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skullnobrains

there are multiple debug screens accessed using various key and the keys vary slightly with the vendors, perhaps individual models.

the one i was hoping you'd get ( actually i think might be vol UP + home + power ) on a samsung device if it is available is blue with a single line of white text and you can't do a thing. but it allows plugging an usb cord and ALL the partitions are mountable rw on a computer without hassle. actually i used it to root some devices. it might be worth a shot to try other combinations.

this one may or may not allow the use of adb. on most phones you can enable adb from this screen. if adb is available, you can get your precious data back. anyway plug an usb cord and see if some new partitions are visible. and if not try and use adb and see if it can detect your tablet.
jpmoreau

ASKER
On this model I only see Power and volume button
skullnobrains

hmm... not sure there is a way to access those screens, then

what about plugging an usb cord with the startup screen you got ? trying adb ?
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Jackie Man

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jpmoreau

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Is think that nothing is working to save the datas
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Jackie Man

Agreed.

Even you can access the tablet via adb, nothing can be restored as your tablet is not rooted.

In short, it is not possible to do any data recovery.
jpmoreau

ASKER
When I connect the tablet to a PC it try to install but fail. The only choice I can do is to factory restore but it wont give me my photos.

Thanks everyone
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skullnobrains

sorry you could not recover your data. regards