Switch OLED teardown V1/V2

[HelloShitty]

The dat0 line for the sxcore has small issue (with initialize the emmc). A resistor might do the trick (as long as it is between the dat0 and the modchip)

Oh crap...
Are there any pictures where to place that resistor? People go for smd resistors? I only have 1202 format ones at han!

 

[de9ed]

A timing or voltage issue?

What about the SX core with OLED? What is the reason to avoid?

speed of the transfer is the issue.

Oh crap...
Are there any pictures where to place that resistor? People go for smd resistors? I only have 1202 format ones at han!

any resistor work, just slap it on the modchip side or the dat0 adapter side

 

[zal16]

Because I could get this one for like 100$. Way cheaper



What is it so hard about it?



I meant this one:

in addition to installing the 6 wires (3.3v, GND, CLK, CMD, RST and DAT0) it is necessary to add 3 more wires, which go to the CPU ribbon. it is also necessary to cut a piece of the metal cover, because the sx core is too big

 

[zal16]

10 to 50 ohm resistor on dat0 line. I would try 10 first

I put a 100 ohm resistor and the glitch works so fast

 

[HelloShitty]

in addition to installing the 6 wires (3.3v, GND, CLK, CMD, RST and DAT0) it is necessary to add 3 more wires, which go to the CPU ribbon. it is also necessary to cut a piece of the metal cover, because the sx core is too big

Ok, I have this image. I think it is only missing GND
https://i.ibb.co/CPBrPB3/IMG-3547.jpg

I put a 100 ohm resistor and the glitch works so fast

But is this resistor in series between DAT0 underneath the NAND and the point on the other end (which is in the ribbon) ? Do you have an image so that I can make sure how the resistor should be placed?

 

[Quezacotl]

Ok, I have this image. I think it is only missing GND
https://i.ibb.co/CPBrPB3/IMG-3547.jpg




But is this resistor in series between DAT0 underneath the NAND and the point on the other end (which is in the ribbon) ? Do you have an image so that I can make sure how the resistor should be placed?

https://i.imgur.com/N9uNhFl.png
EDIT: This diagram i found on the net is not that good i think. The 3V3 point is permanent 3V3, as the one similar looking caps above is the one for when Switch is actually turned on. The other is that when i connect CPU3, it's like the modchip crashes. When it's disconnected, it's atleast doing something. I still haven't got my install to work.

 

[Quezacotl]

Can anyone confirm the installation points? Look at the above diagram i posted.
And yes, i still cannot get it to work. The new 0.6.0 firmware diagnostic says i have problem with CPU connections.

-Does the 3V3 point need to be permanent like in the picture or the one cap above where you get 3V3 only when Switch is turned on?
-CPU3 when connected, i think it crashes the SX Core. Disconnected, and it actually does something. When reading the schematics and PCB photos, i see that CPU3 is only for Erista model. I have v2 adapter that has the CPU3(Erista point) connected to ground.
I would imagine that the SX core can see that it's grounded if it's connected, and act according, but is it supposed to? Afterall, everything is about focusing on OLED, especially on spacecraft firmwares.
-I have noticed that the resistor(i have 22R) on DAT0 line actually allows the Switch to boot past Nintendo-logo to OFW. Without it, it always hangs after Nintendo-logo.
-Do i need the SD card at all? Can i confirm that the mod works without SD? There's sdloader.enc and hwfly_toolbox.bin, but i don't know if their required in the troubleshooting.
-Anything else worth mentioning?

 

[doom95]

The diagram is wrong. Sthetix updated it on his github. Use the 3v3 point on the larger caps.

Even without SD card, on a good install you get a green light, and the OLED display will tell you that you need to insert an sdcard. From that screen you can boot into OFW by pressing VOL+/VOL- simultaneously.

 

[Quezacotl]

The diagram is wrong. Sthetix updated it on his github. Use the 3v3 point on the larger caps.

Appears that only thing changed is what i mentioned, the 3V3. But my other questions?

 

[doom95]

I wouldn't use the wrong modchip for an OLED. Install is hard enough as-is.

But if you insist, you can trick the firmware into thinking it's an sx-lite by pulling up pin 39 on the microcontroller to 3v3. Currently it will have a resistor to ground, that's how the firmware knows the type of board it is. That will trigger oled-compatible behavior.
CPU point 3 is not necessary.

 

[Shadow_The_Hedgehog82]

Think i killed my oled. I install the oled chip then it was booting to stock os, realised I forgot point A. I went back and tried to solder that, the little component there got sucked into my iron I tried booting anyway but now it just boots to a purple screen.

I removed the chip and ribbon and it still boots to purple.

Anyone know what the component is so i can buy a repalcement?

 

[Quezacotl]

Think i killed my oled. I install the oled chip then it was booting to stock os, realised I forgot point A. I went back and tried to solder that, the little component there got sucked into my iron I tried booting anyway but now it just boots to a purple screen.

I removed the chip and ribbon and it still boots to purple.

Anyone know what the component is so i can buy a repalcement?

I'm measuring it as 4k7 resistor.

 

[Shadow_The_Hedgehog82]

I'm measuring it as 4k7 resistor.

thankyou do you know what size these are?

 

[Quezacotl]

thankyou do you know what size these are?

0402(metric) 01005(imp)
EDIT: 0603(metric) 0201(imp) feels too big, but it's manageable.
I really hate that there's two measurement systems.

 

[doom95]

4k7 0201 resistor

it's the emmc clock line, and breaking that indeed results in purple screen

 

[Quezacotl]

I wouldn't use the wrong modchip for an OLED. Install is hard enough as-is.

But if you insist, you can trick the firmware into thinking it's an sx-lite by pulling up pin 39 on the microcontroller to 3v3. Currently it will have a resistor to ground, that's how the firmware knows the type of board it is. That will trigger oled-compatible behavior.
CPU point 3 is not necessary.

That really changed the behavior a little. Now my Switch does is blinking green, blinking purple, solid white. Before that it immediately turned solid white.
What is actually a OLED compatible behavior? What it actually does?

 

[doom95]

different thresholds mainly

blinking green is strange, that's not a defined pattern.

 

[Shadow_The_Hedgehog82]

0402

4k7 0201 resistor

it's the emmc clock line, and breaking that indeed results in purple screen

Thankyou I will order some. hopefully i haven't killed it. Will need another oled ribbon too since removing it ruined it

 

[doom95]

wouldn't be too crazy to hand it off at this point. these are clear indicators you should start treading very carefully on this board before it reaches a state where it becomes unservicable

 

[kyomagi]

Thankyou I will order some. hopefully i haven't killed it. Will need another oled ribbon too since removing it ruined it

Did you have your iron too hot? its suggested not to have your iron hotter than 300c when soldering to the board.