Hacking Question Restored 6.1 NAND on 6.2 system, Switch wont go into RCM now.

Flocka · Dec 14, 2018

Long story short, had issues aftyer updating to 6.2, blew the fuse on accident.

Had clean NAND on 6.1. Verified and Restored BOOT0/BOOT1 and rawnand. Boots to black screen. No worries, I'll skip fuse chekcing with hekate and update.

However, the Switch won't go into RCM anymore. I had 89% battery in Hekate, so I don't think the battery is dead.

Jig is in slots 1 and 10. Power and Volume up. Same as its always been.

Any ideas?

Backstory:

Got this switch on 6.1. Backed up NAND and BOOT0/BOOT1. all verified fine.

Played on it for a bit with SXOS 2.3. When 2.4 came out, I used Choi to upgrade to 6.2 and it continued to work fine on SXOS 2.4. I was playing Civ6 and I put the console to sleep. It wouldnt wake from sleep. it just kept getting to nintendo logo and then black screen (mismatched fuses)?

Flashed my 6.1 NAND backup. Same issue. Tried booting SXOS 2.3 and SXOS 2.4, same issue. Tried Atmosphere, ReiNX, Kosmos, all same thing. Nintendo Logo then black screen.

Edit: Booted SXOS 2.3 and got an Orange Screen. Very weird.

Flocka · Dec 14, 2018

It boots to RCM now.

I can load SX OS payload 2.4, try to boot OFW or CFW and all I get is nintendo logo then blank screen. Tried Kosmos via Hekate and get the same result.

This was the whole reason I restored in the first place.

Zumoly · Dec 14, 2018

So you are on fw 6.1 ( that you restored) now and unable to boot? Did you try ReiNX also? Did you make a backup of your NAND on 6.2?

Flocka · Dec 14, 2018

Zumoly said:
So you are on fw 6.1 ( that you restored) now and unable to boot? Did you try ReiNX also? Did you make a backup of your NAND on 6.2?

Yes, yes and no.

My 6.1 NAND backup was clean, though.

Zumoly · Dec 14, 2018

That is odd. Did you have the exFat update on your 6.1 NAND backup? Try using an older version of ReiNX (1.7 naybe?) to get it to boot on a fat32 formatted card.

Flocka · Dec 14, 2018

Zumoly said:
That is odd. Did you have the exFat update on your 6.1 NAND backup? Try using an older version of ReiNX (1.7 naybe?) to get it to boot on a fat32 formatted card.

Good idea. I believe I did as I was using exFAT. I tried formatting FAT32, but didnttry older version of ReiNX

Bl4ckeagle · Dec 14, 2018

Do you have a gamecard in the slot? I had problems with it. And of course use as safety measurement fat32

Flocka · Dec 14, 2018

Bl4ckeagle said:
Do you have a gamecard in the slot? I had problems with it. And of course use as safety measurement fat32

I do not.

So, I have my BOOT0/BOOT1, rawnand, and all the partitions files. Are the partitions files of any use?

Bl4ckeagle · Dec 14, 2018

About the partition files I'm not sure, I only had the rawnand and boot0/boot1 which are important.
Did you try atmosphere via hekate or something similar?

In the worst case your backup is corrupted, that would be very bad.

Flocka · Dec 14, 2018

Bl4ckeagle said:
About the partition files I'm not sure, I only had the rawnand and boot0/boot1 which are important.
Did you try atmosphere via hekate or something similar?

In the worst case your backup is corrupted, that would be very bad.

I did try those.

Well, Hekate verified it on Backup and verified it again on restore

Older version of ReiNX did not work.

Manually "updating" to 6.1 via ChoiDu.exe did not work. Same issues.

EDIT MAJOR EDIT: My backup was 6.0.1, not 6.1. if that matters.

Zumoly · Dec 14, 2018

If you can manually update to 6.2 that would be better cause all cfw support it.

Flocka · Dec 14, 2018

Zumoly said:
If you can manually update to 6.2 that would be better cause all cfw support it.

I heard ChoiDujour doesnt support targeting 6.2.0 at the moment?

Zumoly · Dec 14, 2018

Flocka said:
I heard ChoiDujour doesnt support targeting 6.2.0 at the moment?

Oh too bad. Did you try booting OFW though? Or even booting without SD?

Flocka · Dec 14, 2018

Zumoly said:
Oh too bad. Did you try booting OFW though? Or even booting without SD?

Yes, same issue with both.

Zumoly · Dec 14, 2018

Do you happen to have another NAND backup of your Switch on another firmware?

Flocka · Dec 14, 2018

Zumoly said:
Do you happen to have another NAND backup of your Switch on another firmware?

Unfortunately no. I received the device on 6.0.1 from a seller. Immediately did NAND backup.

Currently restoring that backup again. I will check on it in the AM.

Could I do the "Total Commander" trick? Or possibly rebuild the NAND if it's messed up?

Zumoly · Dec 14, 2018

Ah I see! How many times did you restore your 6.0.1 backup and where are you keeping it (pc, external drive)?

Flocka · Dec 14, 2018

Zumoly said:
Ah I see! How many times did you restore your 6.0.1 backup and where are you keeping it (pc, external drive)?

So far, one. Going on two. It is being kept on my PC hard drive. Internal.

Zumoly · Dec 14, 2018

If you have another SD try restoring from there.

Flocka · Dec 14, 2018

Zumoly said:
If you have another SD try restoring from there.

I could get one. I don't currently have a second one.

Hacking Question Restored 6.1 NAND on 6.2 system, Switch wont go into RCM now.

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