Hacking I've got Slow EMMC issue after Picofly install, boots both CFW and OFW

MentendoSnitch

Member
OP
Newcomer
Joined
Oct 17, 2024
Messages
10
Trophies
0
Age
26
XP
15
Country
Italy
Hi everyone! This Is my first thread here, I've got this V2 in which I installed the Picofly modchip, I managed to boot Hekate, create an EmuMMC, and save Prodinfo with Lockpick.RCM, but when I went on the EMMC voice of the Hekate "Console Info" menu, I've got the message "Your EMMC it's Initialized in Slower Mode", it shows a Speed of 50mbps/400mbps, so I tried to boot OFW and it goes on without problems, and so does the CFW, I tried to add a 47 Ohm resistor on both CMD and DAT0 line, but didn't fix the problem, I have done the whole install again and again without getting any difference, always 50mbps, without the modchip the console boots fine, so my only option for now is to add more resistance trying to isolate the circuit better from the electrical noise, can you give me some more hints or a confirm if you think that this option could fix the problem? I would really appreciate any kind of advice
PS: another problem that I had was trying to create an image of the EMMC via EmmcHacGenGUI, I don't know why It Just doesn't create any file and gives me no feedback, could It be for corrupted prodinfo?

Latest Update: I tried, Just for a test purpose, to add some ceramic resistor on CMD (220Ohm) and DAT0(1K) pads (Just because I haven't SMD resistors of the correct values at home, and now Hekate reads the EMMC at 400mbps, but It still (ofc) detect It in slow mode due to the rare performance of ceramic resistors in high frequences circuits, I've just ordered a kit of 806 resistors, and I'll update the thread if that works and which values will fit correctly

SOLVED: To solve the problem I had to replace the 47Ohm resistance on the CLK pad with a 68Ohm one, so the final config Is: 220Ohm on DAT0, 100Ohm on CMD and 68Ohm on CLK
 
Last edited by MentendoSnitch,

thesjaakspoiler

Well-Known Member
Member
Joined
Nov 20, 2018
Messages
1,351
Trophies
0
Age
124
XP
1,977
Country
Afghanistan
The Switch will work even if the emmc is in slow mode, except it is 8 times as slow with reading/writing data.
Usually slow mode means that 1 or more data lines of the are either disconnected or bridged (besides the DAT0 line).
But with modchips it might also be the resistor value that is causing the problems.
Let's see what the new resistors will do.
 

MentendoSnitch

Member
OP
Newcomer
Joined
Oct 17, 2024
Messages
10
Trophies
0
Age
26
XP
15
Country
Italy
The new resistors came here this afternoon, I tried tons of combinations of them on CMD and DAT0 points, but still Hekate detects the EMMC in Slow Mode (200mbps this time, so I assume that a half of the data lines should be working now) and I can't boot to OFW, getting "Unable to read pckg1" error, I didn't change nothing of the software config, so I am pretty sure that it's not a software problem, I post a photo of the install so you guys can look at It and tell me if you got any hints, resistance values atm are 330Ohm on DAT0 and 100Ohm on CMD
PS: The first time that I open EMMC on Hekate It flashes the Slow EMMC message 200mbps, but at the left side, where's Hekate EMMC Speed reading, It says 400mbps, but if I do benchmark or Just close and re-open the Hekate EMMC menu, I got 200mbps readings
 

Attachments

  • IMG20241019194150.jpg
    IMG20241019194150.jpg
    4.8 MB · Views: 6
Last edited by MentendoSnitch,

Site & Scene News

Popular threads in this forum

General chit-chat
Help Users
    K3Nv2 @ K3Nv2: https://youtu.be/QhB5W9WioUo?si=A-hBmK7cjMIlpZxS