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A previous formal Management Review meeting was conducted in December 2008 using this minutes template and the agenda on page 1, in line with the requirements of ISO 9001 and MRM procedure QP03.
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- Some of the compatible devices are iPhone X, iPhone 8, 8 Plus, 7, 7 Plus, Samsung Galaxy S9, S9 Plus, S8, S8 Plus, S7, Note 8, Note 7, Note 5, Note 4, Huawei, LG G5, G4, G3, iPad and etc. Completely waterproof and Warranty: IPX7 waterproof level can easily resist sweat and rain, and you don’t have to worry even if it rains. They are perfect.
- Take a USB cable and cut off the mini USB connector (so you can still connect it to your computer at the other end!). Strip the wire back about 1 to 2 inches so you reveal four wires, these should be green, red, white and black. Strip a small amount of wire off the end of the black cable. You will now solder these wires to the PodBreakout board.
I was planning to keep this knowledge private, but damn it. This is a thread about Apple SWD cables, some things they can do and how to use them
For now I only have got KongSWD, so everything below applies to this type of cable first of all
f you’re reading this thread, you’ve most likely seen many photos with these weird Apple internal cables posted here, on Twitter, — Gorilla, Kong, Kanzi, Chimp, Flamingo, etc.
https://twitter.com/laobaiTD/status/1026546353319493632
But have you ever wondered what they are for, what they can do and why they are so expensive? Answer is simple — they provide JTAG, powerful debug interface
What can you achieve with JTAG on iOS device? Three major capabilities are:
1) Arbitrary memory access (well, there’re some weird limitations though) — you can halt CPU and dump arbitrary portions of virtual memory or load arbitrary file from your computer back to device
2) Arbitrary CPU register access - you can halt CPU and view current register state and change value in any of them
Kanzi Cable Iphone 11
3) Halt CPU at arbitrary point of execution, so you can use first 2 capabilities
With these capabilities you can do pretty much whatever you want with a device: execute arbitrary code at any point, dump anything you want (for example, SecureROM), play with MMIO...
...or grab firmware keys, as I did few weeks ago just by dumping iBoot, pointing “ticket” command’s address to load address, sending the patched iBoot back and then executing my custom payload, Lina, which allows to utilize aes_crypto_cmd()
Obviously Apple wouldn’t make their production devices vulnerable to some stolen cables. That’s because JTAGging is only possible on devices with CPFM lower or equal to 0x01
Kanzi Cable Iphone 10
CPFM stands for ChiP Fusing Mode, as far as I know. It’s fused deep inside of a SoC and cannot be changed. It consists of two boolean values - security mode (bit 0) and production mode (bit 1)
If bit 0 is set, SoC has Secure security mode, otherwise Insecure
If bit 1 is set, SoC has Production production mode, otherwise Development
If bit 1 is set, SoC has Production production mode, otherwise Development
So, to be able to JTAG into device, it has to be Development fused (CPFM 0x01 or 0x00). In other cases, this is what you’ll get:
Cayman (Apple A10) production devices will connect, but no CPUs will be available to choose (about that later)
Skye (Apple A11) will connect and have SEP and ANS2 (some co-processor, I believe) available, but they’re always powered off
Perhaps that's because the version of Astris I have incorrectly detects chip revision of both Cayman and Skye targets I've got (iPad 2018 and iPhone X)
Such CPFM can only be on prototype devices, at least DVT or older. PVT always has CPFM 0x03 (Production + Secure)
To interact with SWD-cables you need a piece of software called Astris. It’s shipped as part of RestoreTools and HomeDiagnostics, never heard it to be shipped as a standalone package
You still can install it separately using Pacifist, but in that case you’ll have to launch LaunchDaemons and kernel extensions shipped with it manually
When you launch Astris with a probe connected to your Mac and a device connected to the probe, you’ll see something like this:
First thing you need to do is to choose CPU. For that:
cpu CPU0
cpu CPU0
Then you need to stop its execution:
halt
Usually it prints register dump:
halt
Usually it prints register dump:
Kanzi Cable Iphone 6
Now you can change any register you like including PC
reg pc 0x41414141
reg pc 0x41414141
Or load patched copy of iBoot back to device, so you can run classic payloads:
load path_to_file address
load path_to_file address
Some corrections about Astris installation: Astris package inside of RestoreTools/HomeDiagnostics doesn't contain many useful support scripts. So beside Astris itself, you should also install this part of HomeDiagnostics
Kanzi Cable Iphone X
The scripts seem to be (partially) incompatible with older/newer Astris versions, so install only matching versions from the same HomeDiagnostics package
For example, when I installed Whitetail scripts along with Electric Astris, I had issues with GDB debugging
For example, when I installed Whitetail scripts along with Electric Astris, I had issues with GDB debugging
Yes, those 8000...800N ports Astris prints when it detects a target are actually the ports you can use to connect to with GDB/LLDB
It never worked properly for me for some reason, but those additional scripts add few new debug features to Astris itself. For example, breakpoints and watchpoints (well, I've never noticed these commands before I installed the scripts)