1. Henbro11341

    OP Henbro11341 Member
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    I try'd the downgrade method form 7.0 to 6.2 followed all directions made sure all was right. After hours of retrying I noticed even thou I did a full Rawnand and boot0/1 backup. The date Created for my Rawnand was correct but the Date created for my Boot0/1 was very different would this be the reason that My switch legit does nothing except load into Rcm to Hekate or SXOS. I don't even get a Nintendo logo loop just a blank screen or rcm mode. DO i have any options or should i just accept buying a new switch. I also have another Rawnand backup that is 2gb parts i try'd to use the Joiner and i can only get half thru before it shuts down... Any help would be appreciated
     
  2. Zumoly

    Zumoly GBATemp Analyst
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    Did you make a NAND backup of your 7 FW beforehand? Do you have a NAND backup of an older FW version like 6.1 or even 5?
     
  3. Kubas_inko

    Kubas_inko "Something funny goes here."
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    Rebuild your NAND by following the manual downgrade guide.
    Do you have a full backup of anything?
     
  4. Henbro11341

    OP Henbro11341 Member
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    I have a full Rawnand backup of my 6.2 that is joined. I also have an unjoined 7.0 that when I try to join using the script it cancels have way thru. but the Boot0/1 I think is wrong will a date created make an issue of the boot files.
     
  5. Kubas_inko

    Kubas_inko "Something funny goes here."
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    Well, do you have boot0/1 for the 6.2.0? That is kinda important. If not, your best bet is to rebuild it from here.
     
  6. Henbro11341

    OP Henbro11341 Member
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    When i made the backup. I also did the boot0/1 but on those files that date is says created is different from the date i created the 6.2 back up
     
  7. Kubas_inko

    Kubas_inko "Something funny goes here."
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    If you know that it was made at the same time, why don't you try it?
     
  8. Zumoly

    Zumoly GBATemp Analyst
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    OP you are in good hands here. @Kubas_inko is quite knowledgeable in the matter.
    But just so you know: keep your 7 NAND backup handy and ready.
    Hope you get it sorted.
     
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  9. Henbro11341

    OP Henbro11341 Member
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    I did, nothing but a black screen not even a charging icon when plugged in. I can get into Rcm mode thru Hekate and Sxos but nothing other then that
     
  10. Kubas_inko

    Kubas_inko "Something funny goes here."
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    @Zumoly That's a good point. Make a full backup right now (although you can't really screw it up even more).
    Only thing I can suggest (again) follow the guide to recreate your NAND.
    Also, try recovery/maintenance mode (probably won't work, but you should try everything).
     
  11. Henbro11341

    OP Henbro11341 Member
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    @Kubas_inko Thank you for the help I see what happens. Also to be clear when you say Back up agian, Is there anything to Backup even thou it only can go into RCM with now Nintendo logo or anything?

    @Zumoly Thank you also.
     
  12. gnilwob

    gnilwob GBAtemp Regular
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    Do you have any instant messaging app ?
    I can help to troubleshoot.
     
  13. Kubas_inko

    Kubas_inko "Something funny goes here."
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    rawnand and boot0/1 (as always). Although it won't really help here, it is always a good idea if you somehow screw up even more.
     
  14. Henbro11341

    OP Henbro11341 Member
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    I have Skype

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

    >python keys.py SBK_Here_From_Biskeydump TSEC_Here_From_Biskeydump
    Using BOOT0.bin to get keys from package1...
    Requesting keyblob seeds...
    Deriving keys...
    Decrypting package1...
    Using Secure_Monitor.bin to get keys to decrypt package2...
    Traceback (most recent call last):
    File "keys.py", line 417, in <module>
    TZ_f = open(os.path.join("package1", "Secure_Monitor.bin"), "rb")
    IOError: [Errno 2] No such file or directory: 'package1\\Secure_Monitor.bin'


    This is the message I got when trying to get my Keys
     
  15. RideOnTheStorm

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    just put Secure_Monitor.bin on the folder where you call python command.
     
  16. Rubaz

    Rubaz Member
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    Just follow the guide and you'll be successful. I tried that today and it worked. After downgrading to 6.1.0 I installed via CNX 6.2.0. I created an emunand and updated the ofw. That would solution minimize the risk of a ban. You should disable your inet connection etc.

    And with guide I mean this: https://guide.sdsetup.com/#/manualchoidowngrade
     
    Last edited: Feb 14, 2019
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