Apple Silicon Soldered SSD Upgrade Thread

[dosdude1]

hi, I am now one step further I think. attached is the new log. again, I tried it with several cables and the dfu usb port directly at the magsafe port. I tried it with uploading 15.6.1 and 26.0.0 both the same. now before he "shuts down" I see at least for like 30 second the apple logo an an empty "status" bar under. Maybe you have another idea? the tip with the soldered cable from force dfu and release after like 4 seconds was already much better.

I uploaded also a short with the blinking of the normal charger. That’s the problem I have pretty similar with 5v-20v.

Failing during NAND firmware update, either NANDs are not blank, NANDs are not compatible, or there is some nearby component that was knocked off the board during your NAND removal and installation process.

 

[Bradonis]

Okay, that sounds not that good. Original there was sdmvgklk2 128gb nand installed, maybe there incompatible? Now it’s k5a5 installed

 

[Rickyandika]

Okay, that sounds not that good. Original there was sdmvgklk2 128gb nand installed, maybe there incompatible? Now it’s k5a5 installed

have you find the solution, im facing the exact same issue but on m4 pro 16”. used HN3T3D, same error 4042. but i dont have anything on display. just stay black the entire process i have double checked no missing components, will try to put the orignal nand back to test

 

[Bradonis]

Hi, actually yee 4042. was gone, when i entered dfu via force cpu and 1.2v as dosdude said.
I still have the problem with my MacBook Air m3. With the daughter board attached it is staying at 5V. Without it the MacBook goes to 20V but can’t get it via the pins into dfu.

 

[Rickyandika]

Yeah i tried using the pins to enter dfu. Before jumping the usb c would bootloop. After jumping it stays at 20v but it does not enter dfu mode. I have to use the keyboard command to enter dfu mode but once restore start, it stays there loading until error 4042 shows up

EDIT:
i installed the original NAND and it boot up straight away, so now i know the board isnt damage. the thing is after installing the original NAND, i tried to dfu restore it, and the same error appeared...

im only able to enter dfu mode via keyboard, shorting the pin (sv100 pin number 4 to rv120 pin 2) doesnt work at all(stuck at 20v), and im sure i short the correct pin.
anybody have experience this before?

 

[Bradonis]

pretty shure thats the wrong one.

check this testpad.



or check Part UF710 also have SOC_Foce DFu and 1.2V

 

[Rickyandika]

they all connect to sv100, its the same line. but i have tried going into dfu from the test point you provided, still teh same. stuck ad 20v. im guessing something wrong with my SN USB controller

 

[ersvltan]

Hey folks. After watching several videos about upgrading on YouTube and reading through this thread I've got couple of (might be dumb) questions.

I am planning to upgrade my Macbook Pro 16inch m3 Pro, and as I understood I need to install 4x K5A8 chips. Luckily I have spare boards (my old ipad and iphone) to experiment with removal first.

1. Does the order of the chips matter? Like the specific positions? Some sellers on Aliexpress sell by piece...
2. Somewhere in the beginning of the thread, dosdude1 said that if you pull out the pads together with the nand chip, then the motherboard is useless at this point. But later on he posted that actually it is very possible to recover the pads using soldering iron, and it is not that complicated. Also he said that if you damage solder mask badly enough it is also not recoverable, but then in the video with Linus Tech, he mentioned that we could use the solder mask to repair the damage. Does it mean that we have one problem less?
3. I've read that using underfill material around the chips does not make sense. Is it still safe to leave it as it is, will there be problems if, for example, the laptop falls or gets hot?
4. I've read that I don't need to do anything other than replacing original chips to 4tb(4x K5A8 1tb), so no additinal capasitors or other elements. Is it correct?

Thanks everyone for keeping this thread active and helpful responses!

 

[Bradonis]

1. not if they are empty, my seller sold me some crap, but looked like new, found another one. lets see. otherwise they should be marked according to position
2. yeah can be repaired with solderballs, a mini copper pad (can get it from ali) and some UV board solder mask
3. there's no problem with falling. maybe more with water damage.
4. correct.

 

[Bradonis]

they all connect to sv100, its the same line. but i have tried going into dfu from the test point you provided, still teh same. stuck ad 20v. im guessing something wrong with my SN USB controller

i think it can be also a problem because of empty nands. but thats just a guess. make shure nothing gets hot over 50°C. otherwise your nands are not soldered correctly