be-gay-do-crimes
/
raspi-keygen
mirror of https://github.com/nucular/raspi-keygen
1
0
Fork 0
Code Issues Releases Wiki Activity

Merge pull request #1 from rapi3/rapi3-patch-1 

Update README.md
This commit is contained in:
rapi3 2021-04-06 13:47:39 +02:00 committed by GitHub
parent 51cc06fd6e e34d175275
commit 6d9c6145b0
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 8 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
README.md
View File

@ -3,7 +3,14 @@
This is an effort to reverse-engineer the Raspberry Pi license key check for
MPEG-2 and VC-1 hardware video encoding.
## Patch
## How to patch the latest version of start.elf?<br>
in /boot/start.elf and /boot/start_x.elf<br>
search for 47E933363248<br>
after this hex string:<br>
if you have 3C18 replace 18 with 1F<br>
if you have 1D18 replace 18 with 1F<br>
## Old Patch
A patch for `start.elf`, a firmwware blob for the VideoCore IV processor used by
all Raspberry Pi models, was posted to
@ -74,10 +81,3 @@ Here, two memory locations (`0xEE86680` for MPEG-2 and `0xEE869E0` for VC-1)
that point to the `.bss` segment are checked to determine the return value of
`is_licensed`. There are no other obvious references to these locations in
`start.elf`, so memory-breakpoint debugging (**TBD**) is probably needed.
## How to patch the latest version of start.elf?<br>
in /boot/start.elf and /boot/start_x.elf<br>
search for 47E933363248<br>
after this hex string:<br>
if you have 3C18 replace 18 with 1F<br>
if you have 1D18 replace 18 with 1F<br>