Strangest computer-related thing ever witnessed

[ouranogrammi]

After some long months of inactivity i decided to continue playing Luigi Mansion 3. My switch has been disconnected from power for months.
Tried to charge it a little bit, then connected to my computer, inserted the jig and held vol+ and pushed the power button. I injected Sxloader.bin (through TegraRcmGUI) as usual and i found my self in SXOS select screen (boot customfw / boot fw etc). I selected customFW as usual and all i got was a black screen with battery indication on top left corner. (My SXOS ver is 3.0.4)
I googled a little bit and i saw the "try to rewrite boot.dat on SD card" solution.
I had this problem like 6 months ago and i remembered that, this solution worked then.

So i got the SDcard on to my PC, and before rewriting SXOS 3.0.4 boot.dat file again i did a CRC the boot.dat file on the card and it was matching the CRC of the boot.dat on my SXOS 3.0.4 PC backup folder.
So there was no corruption
Still, I overwrited the file on the card, i booted my SXOS and ...problem gone.

So I don't need any help or support but i can't get my head around the fact that the boot.dat file on the SD was EXACTLY the same as the boot.dat file on my PC but i had to overwrite it to work.

How this is possible?!??!?

 

[Chaosta]

After some long months of inactivity i decided to continue playing Luigi Mansion 3. My switch has been disconnected from power for months.
Tried to charge it a little bit, then connected to my computer, inserted the jig and held vol+ and pushed the power button. I injected Sxloader.bin (through TegraRcmGUI) as usual and i found my self in SXOS select screen (boot customfw / boot fw etc). I selected customFW as usual and all i got was a black screen with battery indication on top left corner. (My SXOS ver is 3.0.4)
I googled a little bit and i saw the "try to rewrite boot.dat on SD card" solution.
I had this problem like 6 months ago and i remembered that, this solution worked then.

So i got the SDcard on to my PC, and before rewriting SXOS 3.0.4 boot.dat file again i did a CRC the boot.dat file on the card and it was matching the CRC of the boot.dat on my SXOS 3.0.4 PC backup folder.
So there was no corruption
Still, I overwrited the file on the card, i booted my SXOS and ...problem gone.

So I don't need any help or support but i can't get my head around the fact that the boot.dat file on the SD was EXACTLY the same as the boot.dat file on my PC but i had to overwrite it to work.

How this is possible?!??!?

sd corruption. is it exfat or fat32?

 

[ouranogrammi]

sd corruption. is it exfat or fat32?

Fat32.
If it was corrupted, shouldn't I be getting different CRC from SD's boot.dat before overwriting it? (So there would be no "strangest thing ever" thread)

 

[Draxzelex]

Fat32.
If it was corrupted, shouldn't I be getting different CRC from SD's boot.dat before overwriting it? (So there would be no "strangest thing ever" thread)

Your SD card might be dying.

 

[JayBae]

How this is possible?!??!?

It's a faulty or slightly corrupted SD card, it happens from time to time, The files appear the same, but when you overwrote it with the new file it kinda updates where the data is stored thus avoided the corruption. Least that's my guess anyways.