Hacking Hardware Picofly - a HWFLY switch modchip

[Hassal]

Why not connect the flex cable to the capacitors on the back of the motherboard?
Those caps are so big that even with my dollar-shop soldering iron I could safely connect a flex cable to them.

I'm doing it this way because we have proof that it works. I'm not going to experiment and waste money on something that I don't know if its going to work.

The idea of this flex is to complement my adapter to have an all one solution.

Doing backside will not save you time either since you will end up opening the CPU shield either way to replace the thermal paste.

 

[danwellby]

I'm taking that the mcfl is intended to sit on the ram under the sheld going by the cpu part of the flex and not by cutting a hole in it?
Or is that a basic design and the cpu part of the flex will stick out the bottom or something simular

 

[Hassal]

I'm taking that the mcfl is intended to sit on the ram under the sheld going by the cpu part of the flex and not by cutting a hole in it?
Or is that a basic design and the cpu part of the flex will stick out the bottom or something simular

This is a no shield design so the chip will be sitting on top of the ram.
To retain the CPU shield the flex needs to be extended and folded like Instinct CPU flex. I ain't doing it like that.

BTW, its McFlex

 

[ZeeuwsGamertje]

Hello everyone,

I have a V1 Nintendo Switch and tried modding it using a "plug and play" modchip from aliexpress (the one that requires soldering to 2 capacitors).
I think I did everything right, however it boots to OFW.
The LED indication tells me ==* which points to a mosfet, but since I'm using a "plug and play" modchip I'm not sure what I should do now.
I put fw_2.73.uf2 on the modchip, and when doing that the LED flashed green once, so I don't think that's the problem.
On the attached video I booted the switch at about 0:01

Any help would be greatly appreciated!

 

[danwellby]

This is a no shield design so the chip will be sitting on top of the ram.
To retain the CPU shield the flex needs to be extended and folded like Instinct CPU flex. I ain't doing it like that.

BTW, its McFlex

Makes sense,
Also I did wonder if there was a typo there as I didn't notice the spoiler and there was a large space there

 

[jkyoho]

Hello everyone,

I have a V1 Nintendo Switch and tried modding it using a "plug and play" modchip from aliexpress (the one that requires soldering to 2 capacitors).
I think I did everything right, however it boots to OFW.
The LED indication tells me ==* which points to a mosfet, but since I'm using a "plug and play" modchip I'm not sure what I should do now.
I put fw_2.73.uf2 on the modchip, and when doing that the LED flashed green once, so I don't think that's the problem.
On the attached video I booted the switch at about 0:01

Any help would be greatly appreciated!



View attachment 397985

show your cpu cap work

 

[ZeeuwsGamertje]

show your cpu cap work

so after your message I wasn't too sure about my solder work, so I tried to make it better.
after redoing it and being extra careful connecting the rest I got it working!
thanks for confirming my suspicion of not good enough solder work!

 

[Ganesha0112]

Hello friend, I know this question don’t have see too much with RP2040 but i want to ask


Why I need move to do a correct motherboard swap?

I have a good OLED motherboard but not working NAND (I bought with that problem already) and I have a good OLED nand, CPU and Ram but faulty motherboard. So I want to do a mb swap, I know that it can do but I don’t know what ICs I need move to the other MB and make it work

 

[Crung]

Hello friend, I know this question don’t have see too much with RP2040 but i want to ask


Why I need move to do a correct motherboard swap?

I have a good OLED motherboard but not working NAND (I bought with that problem already) and I have a good OLED nand, CPU and Ram but faulty motherboard. So I want to do a mb swap, I know that it can do but I don’t know what ICs I need move to the other MB and make it work

you need 1 more chip ,the chip that reads cartridges for digital signatures?. From what i remember this one is also tied to emmc cpu. you can find it here. if im wrong please correct me

 

[Danook28]

Im finish mod nintendo switch oled. Add 2 more resistor cmd dat0. Still have slow mod mmc!!!!!!

Boot to ofw purple secreen.i change 4.7 smd ohm resistor. 2 time.

Can help plz.

 

[Hassal]

Hello friend, I know this question don’t have see too much with RP2040 but i want to ask


Why I need move to do a correct motherboard swap?

I have a good OLED motherboard but not working NAND (I bought with that problem already) and I have a good OLED nand, CPU and Ram but faulty motherboard. So I want to do a mb swap, I know that it can do but I don’t know what ICs I need move to the other MB and make it work

What's your definition of a faulty board?
The one with the faulty NAND can be salvaged but you ain't playing online on that anytime soon.
Your other board is basically scrap you can use for spare parts unless you're a wizard that can mount CPU, NAND, RAM onto the other board.

 

[ppzikos]

Hello friend, I know this question don’t have see too much with RP2040 but i want to ask


Why I need move to do a correct motherboard swap?

I have a good OLED motherboard but not working NAND (I bought with that problem already) and I have a good OLED nand, CPU and Ram but faulty motherboard. So I want to do a mb swap, I know that it can do but I don’t know what ICs I need move to the other MB and make it work

hello, you only need to move the cpu and the nand, the ram is not linked.

 

[thesjaakspoiler]

you need 1 more chip ,the chip that reads cartridges for digital signatures?. From what i remember this one is also tied to emmc cpu. you can find it here. if im wrong please correct me

This chip is tied to the second SDMMC port of the Tegra cpu but not to the emmc port to which the NAND flash chip is connected. Likely they use the same power rails.
Afaik, in the initial boot process, nothing checks the existance of this chip so you should be able to boot into Hekate or something.
When the Switch boots then it uploads an encrypted firmware to this chip in order to be able to access cartridges.
It does this every time it boots, even when no cartridge is installed.
So I don't know what will happen if it's physically not there.
This chip does not have any console specific signatures but it does hold some version number.
Each firmware has a minimum required cartridge reader version number and if they don't math you just can't read cartridges.
For fixing that you either use a newer firmware (if the cart reader firmware is too new) or allow Hekate with a certain setting to update the version of this chip. But that is just something minor that can be fixed.

 

[Diogen_Karpis]

hi to all comunity,

i have a erista was using sysnand, ill try to format console, after that brick.... ill try tutorials UNBRICK LEVEL1 , LEVEL2 AND LEVEL 3, FROM STHETIX, but i cant fix it.
i remember 1 year ago have same problem with another switch, i can access to hekate and nothing more, at that time sthetix has a unbrick level4 to consist the video use a donor and to built a emunand with our keys etc, to revive al least emunand.
i now that exist this video, but now is missing, Do you now some tutorial to do the same i cant find again, i want to revive this console.

thanks in advanced !

 

[Hassal]

hello, you only need to move the cpu and the nand, the ram is not linked.

You will end up looking like a sucker if you try to swap those.
The person is saying one console with faulty eMMC which I'm guessing was able to boot into hekate.

The other board I'm guessing didn't boot but where he got the claim that those components are healthy is beyond me. The CPU is the least unit that would go bad. Simply put, if eMMC go bad you're busted.

 

[Jagovi]

Hi! I have bought a Nintendo switch lite with rp2040-lite modchip installed (using the flex cables). It start in hekate but I can’t start emummc or ofw, I get a “pkg1 decryption failed. bek is missing” error. Any idea of how could I get the console back? I haven’t backup. I have tried a tutorial of unbrick a console but I get this attached error when I try it.
Thanks!

 

[LuigiGad]

Hi! I have bought a Nintendo switch lite with rp2040-lite modchip installed (using the flex cables). It start in hekate but I can’t start emummc or ofw, I get a “pkg1 decryption failed. bek is missing” error. Any idea of how could I get the console back? I haven’t backup. I have tried a tutorial of unbrick a console but I get this attached error when I try it.
Thanks!

if you go to the console info section --> eMMC send us screen?

 

[Jagovi]

if you go to the console info section --> eMMC send us screen?

 

[Jafece]

Hi! I have bought a Nintendo switch lite with rp2040-lite modchip installed (using the flex cables). It start in hekate but I can’t start emummc or ofw, I get a “pkg1 decryption failed. bek is missing” error. Any idea of how could I get the console back? I haven’t backup. I have tried a tutorial of unbrick a console but I get this attached error when I try it.
Thanks!

That looks like the error from the first version of rp2040 firmware when it only supported linux/android. That means keys are missing or being cleared. I dont know if your lite is a true rp2040 which you can update, or a hwfly clone which you should contact the seller and see if it can be updated.

 

[abal1000x]

Rehius update the github lastweek using a finer divisor from 10 to 8.
I 'feel' the glitch become more faster.

But no released firmware, you need to build it yourself.