o3ds black screen - homemenu shows, but stuck, recovery works, but didn't fix

Discussion in '3DS - Console, Accessories and Hardware' started by leerz, Mar 20, 2016.

  1. leerz
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    leerz GBAtemp Advanced Fan

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    Makati
    So, I got this 3dsxl somewhere,

    it powers on but has no display - Black Screen, when I press the POWER button, it shows the screen where I can turn of 3DS, when I press home, it shows the loading home screen but will stay there forever.

    The recovery mode works (L+R+U+A), I tried updating through this earlier (the update finished after several retries) but issue is still the same,

    When I retry the update now, the 3ds says the fw is currently the latest. (the 3ds is JAP so I had someone translate the text for me)

    any thoughts what could my next steps be?
    I'm guessing this 3ds is already updated to 10.7
    so I can't re-run the update (w/c didn't fix the problem)

    maybe I will try and wait for the 10.8 update to come out pray that maybe it will fix the problem?

    this is a virgin 3ds and I have not done any cfw mod so far,

    so far what I've done is dump the nand (10.7), (i sure hoped I tried to dump prior to the update gah so I can retry and retry till it is resolved).

    My theory are as follows:
    1. Corrupted emmc/bad sectors maybe due to Electro Static Discharge or something / lifted bga?,
    2. used up read/write emmc cycles. (I tried re-writing back the nand in hope of fixing it or overwriting the broken sectors but no sugar)

    Is there anything I can do to mess up with the nand backup I created on PC to maybe try to make it work? (like unbrick bat on the otp guide, maybe there's nothing I can do to mess it up since I don't have fat16 xorpads to decrypt the nand/*on the contrary, I recall that there are tools available in messing up with emunand before even if they are encrypted when setting up palatine cfw's, so maybe some work can be done on the nand backup even without the xorpads?)

    let me know your thoughts.


    thanks


    lrz
     
    Last edited by leerz, Mar 20, 2016 - Reason: cleaned
  2. mammastuffing

    mammastuffing GBAtemp Regular

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    If you make two dumps of the nand, are they identical?
     
  3. leerz
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    leerz GBAtemp Advanced Fan

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    Hello, I made 2 backups, both showing ncsd, I've not checked if they have the same checksum, but I've flashed both and the problem persists. :)

    Thanks for replying.
     
  4. mammastuffing

    mammastuffing GBAtemp Regular

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    If I'm not mistaken, corrupt sectors return arbitrary values when reading but will not be able to be read again. Next read will give an error when reading though. So I was thinking that comparing two dumps in something like HxD it might give a hint of a corrupt nand.

    I'm guessing you've already tried removing variables like the SD-card already?
     
  5. leerz
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    leerz GBAtemp Advanced Fan

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    yes, sd card is removed. removed IR module, removed wifi module (I tried to isolate by removing them one by one), same thing, I've yet to test if it connected to the 3d display, when i get my hands on another 3dsxl)

    ok I will check my backup for the checksum.
    do you know If there's a way to do a "force re-update" or something. gahhh, wish dumped prior to my first update attempt)
     
  6. mammastuffing

    mammastuffing GBAtemp Regular

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    No, sorry. Don't know how to force it. :/
     
  7. mitroux

    mitroux GBAtemp Regular

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    i think either the home menu is corrupted or something wrong with the ticket?
    according to a previous msg from gamequest ,he got the same problem on one of his 3dsxl with a corrupted home menu , he fixed it by flashing a nand backup
    the only way i could think of is asking apachethubder to patch zelda to autoboot (like those demo kiosk game carts , then run decrypt9to generate ctr nand and fix the wrong files) , but i don't know if it's even possible to fix roms cheksum(assuming you will need a sky3ds to run the modified rom)
     
  8. dg_dex

    dg_dex GBAtemp Regular

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    Is it both screens or is the top screen just down?
     
  9. leerz
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    leerz GBAtemp Advanced Fan

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    both screens are working

    — Posts automatically merged - Please don't double post! —

    Thanks, btw, Carts can AUTOBOOT? maybe I can setup the wifi via recovery, then load ninjhax then get HB to load and then trigger a DG ssu?
    unfortunately for the nand backup thing, I have it, but it is in its current dead form.

    what do you mean patched zelda? did you mean a oothax with patch (HACKED SAVE) and then make it autoboot? I hope that's what you are saying,
    as for the d9 working, i highly doubt this since the system is currently 10.7, according to when I update via recovery.

    Thanks for answering
     
  10. dg_dex

    dg_dex GBAtemp Regular

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    I had a similar problem after I inserted the ribbon underneath the corner of the board incorrectly. The top screen would light up with no image. Bottom screen was perfect. I flipped the ribbon back the correct way. The console works fine now.
     
  11. leerz
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    leerz GBAtemp Advanced Fan

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    Hello, thank you for trying, however, I'm pretty sure the screens are plugged properly. there's display,

    what happens is, the screen is just stuck on loading the home menu :)
     
  12. dg_dex

    dg_dex GBAtemp Regular

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    I know you've given a brief description in your original post. But can you describe what's exactly happening from start to finish?
     
  13. mammastuffing

    mammastuffing GBAtemp Regular

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    Or better yet, post a video. :-P