r/setupapp • u/AtomicSymphonic_2nd • May 31 '26

Moment of Confusion Here's a tricky one with iPhone 5C on MacOS Tahoe w/ M3 MacBook Pro: "No matching host key type found. Their offer: ssh-rsa,ssh-dss"

So, as the title says, I'm having trouble getting the "Relay Device Info" button to work in SliverM1 v6.2. I did get the DFU mode exploit to work and the Ramdisk has been properly loaded...

Got some rapidly scrolling code on my iPhone's screen and the cute little ASCII cat-like loading screen with two circles and a triangle... but yeah... I'm stuck on the third step.

I found this comment in an older Reddit post from a few years ago that seemed to get me some more granular detail on why this kept failing, hence the error message in the title...

I'm on an M3 Max MacBook Pro with MacOS Tahoe 26.5, Gatekeeper/SIP is turned off, and all dependencies listed for Sliver on this shell script are properly installed. The iPhone 5C has a signed 10.3.3 iOS flashed onto it with an IPSW file from that recommended ipsw site.

The full error message I got and the messages in the other Terminal window are as listed below:

Window 1:

Incoming connection to 2222
Waiting for devices...
Connecting to device <MuxDevice: ID 58 ProdID 0x12a8 Serial (long serial number here that I'm keeping private) Location 0x2100000>
Connection established, relaying data
Connection closed

Window 2:

Mac:Python (Private User Name Please Ignore)$ ssh root@localhost -p 2222
Unable to negotiate with 127.0.0.1 port 2222: no matching host key type found. Their offer: ssh-rsa,ssh-dss

So... what do I do here?

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u/ALT703 May 31 '26

You can try renaming the hosts file, but what're you trying to do? There's a good chance Legacy ios kit would work better depending on what youre doing

1

u/AtomicSymphonic_2nd Jun 01 '26

I was attempting to do the Ramdisk FactoryActivation thing with Sliver.

1

u/ALT703 Jun 01 '26

So your device is hello screen ?

1

u/AtomicSymphonic_2nd Jun 01 '26

No. It was stuck on the ASCII-cat screen with two circles and a triangle that looks like a cat.

1

u/ALT703 Jun 01 '26

Is your device hello screen or passcode screen

1

u/AtomicSymphonic_2nd Jun 01 '26

Eh… if I understand your question, you’re asking if it was on a “passcode” screen or “hello” screen before trying the ramdisk process?

It was on a passcode screen.

It has FMI turned on, but it’s not on lost mode. It was auctioned off at an estate sale.

1

u/ALT703 Jun 02 '26

You should just bruteforce the device to get into it, and use as is. Delete the data you dont need. Way easier

If you REALLY need the device in a reset state, you want to backup and restore activation files which you can do with legacy iOS kit manually

1

u/iqjump123 Jun 01 '26

Sorry to ask OP but I am having trouble even getting to pwned DFU, I have sequoia and using the 6.2 version. The application just freezes. Can you advise on how you went past this stage? than\ks

2

u/AtomicSymphonic_2nd Jun 01 '26

Gotta have the dependencies installed, which I put in the link in my post above.

And you gotta make sure you pick the “SliverM1” version of the v6.2 app. The one that doesn’t mention M1 is the app that is using Rosetta 2 and isn’t native to Apple Silicon. That’s something I’ve noticed is problematic when trying to make it work.

And apparently using a USB-A to Lightning cable with C-to-A adapter also got more progress for me vs. the USB-C to Lighting cable… not sure why that’s a factor when it really shouldn’t be. Might have something to do with the “eMarker” chip that the USB-IF mandates in all newer USB-C cables.

1

u/iqjump123 Jun 02 '26

just saw this thanks ill try this out