Hacking Question Switch bricked and cannot go to RCM

[ly0koS]

why not buy one rcmloader dongle ?

In shiping.
BTW my hope is no on that...

 

[paulzheng]

In shiping.
BTW my hope is no on that...

holding power button above 15 seconds to shutdown and try it again.
don't forget charging full battery before working.

i am not sure wether there is a hardware problem in your switch.

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In shiping.
BTW my hope is no on that...

if you restored boot0/1 not paired Hos version with current system , it could be brick.
for example, 11.0.0's nand includes boot0, boot1 and rawand, if you restore a old version boot0/1, it must be black screen.

 

[ly0koS]

holding power button above 15 seconds to shutdown and try it again.
don't forget charging full battery before working.

i am not sure wether there is a hardware problem in your switch.

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if you restored boot0/1 not paired Hos version with current system , it could be brick.
for example, 11.0.0's nand includes boot0, boot1 and rawand, if you restore a old version boot0/1, it must be black screen.

Understood,but as far as I have the full backup with my boot0/boot1 and matched rawnand.I think it's not a big problem IF I can enter RCM,or my computer can pick up my switch.

 

[paulzheng]

Understood,but as far as I have the full backup with my boot0/boot1 and matched rawnand.I think it's not a big problem IF I can enter RCM,or my computer can pick up my switch.

i saw maybe you are using windows in mac. check usb driver compatible problem. or you can choose to payload with android phone. need a otg adapter in addition.

 

[ly0koS]

i saw maybe you are using windows in mac. check usb driver compatible problem. or you can choose to payload with android phone. need a otg adapter in addition.

Well,actually not Windows in Mac,but native Windows and Macbook pro. And also tried with phone...no luck.

 

[Hayato213]

Well,actually not Windows in Mac,but native Windows and Macbook pro. And also tried with phone...no luck.

Since you also tried phone also, it might not even be in RCM mode that you said you had autoRCM on.

 

[ly0koS]

Since you also tried phone also, it might not even be in RCM mode that you said you had autoRCM on.

But I also tried to press the buttons while boot it up.
So it's pretty wired.

 

[Hayato213]

But I also tried to press the buttons while boot it up.
So it's pretty wired.

You tried with the jig on the right joycon rail just in case while pressing the correct button?

 

[ly0koS]

You tried with the jig on the right joycon rail just in case while pressing the correct button?

If the combo is power+vol up,then yes!

 

[Hayato213]

If the combo is power+vol up,then yes!

Yea it is hold down + volume button while pressing the power button, you tried what Gamesquest1 said?

 

[ly0koS]

Yea it is hold down + volume button while pressing the power button, you tried what Gamesquest1 said?

No...I'm actually at work now.Will try it few hours later

 

[ly0koS]

Long story short, I got a success!
After did what gamesquest1 said:

disconnect battery and the Emmc chip, this will ensure RCM mode will be initiated upon plugging the USB cable in, just reconnect them both before sending your payload over, I don't see how or why you would be failing to get into rcm mode with the jig, but thats a surefire way of ruling out it simply being an issue
my switch successfully picked up by my computer and entered RCM mode. And after I put my nand back on. My payload injected smoothly.
Now, I got a switch with a strange battery level:

So do I need some kind of fix?
And also I definitely need a full nand restore to match my boot0/boot1 right?

 

[Hayato213]

Long story short, I got a success!
After did what gamesquest1 said:

Isn't your battery not plug in?

 

[ly0koS]

Isn't your battery not plug in?

I plugged my battery back in.

 

[Hayato213]

I plugged my battery back in.

In the picture you show the battery is only like 25% of max capacity, should be around 4667 mah for capacity (design).

 

[ly0koS]

In the picture you show the battery is only like 25% of max capacity, should be around 4667 mah for capacity (design).

Yeah, before the failure I remember my battery capacity is like 4200+ mAh or so.

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And when I plug my charger onto it. It now chargers at 7.5W.

 

[Hayato213]

Yeah, before the failure I remember my battery capacity is like 4200+ mAh or so.

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And when I plug my charger onto it. It now chargers at 7.5W.

You can try to restart the unit and go back into Hekate see if it recalibrate the battery, if it doesn't then the battery is a goner.

 

[ly0koS]

Will try.....
BTW, I think a full emmc RAW restore is necessary,right?

 

[Hayato213]

Will try.....
BTW, I think a full emmc RAW restore is necessary,right?

You can try to restore the NAND and see if it boot, restore your boot0/boot1 with the matching Rawnand.

 

[ly0koS]

You can try to restore the NAND and see if it boot, restore your boot0/boot1 with the matching Rawnand.

Well,it boot nicely, and also my battery info is now back to normal. I believe it just need a small re-calibration. Now I got a switch with 14 burnt fuses and my backup is 9.0.1 so that means I will need RCM to boot my OFW every time? What will happen if my autoRCM is off? Also, what if I update my OFW to latest?