Downgrading with linux: Difference between revisions
(Installing debug firmware) |
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* This works on FW 3.55 without a physical dongle. | |||
* You should have graf_chokolo's modules, and patches installed. | |||
* Use this method to install a lower firmware. | |||
* Thanks to graf_chokolo for bringing Linux on PS3, with all its goodies back to the PS3 == | |||
= Downgrade Method - Emulating JIG with Linux = | = Downgrade Method - Emulating JIG with Linux = | ||
'''1st step''' – Generating a challenge | '''1st step''' – Generating a challenge | ||
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---- | ---- | ||
You need a dongle | You need a dongle ID. | ||
Valid range for dongle IDs is 0×0000 – 0xffff. So choose one, | Valid range for dongle IDs is 0×0000 – 0xffff. So choose one, it does not matter which one, but some are revoked !!! | ||
# ps3dm_usb_dongle_auth /dev/ps3dmproxy gen_resp 0xBABE “here is a challenge like this 0xXX 0xXX … of size 20 bytes” | # ps3dm_usb_dongle_auth /dev/ps3dmproxy gen_resp 0xBABE “here is a challenge like this 0xXX 0xXX … of size 20 bytes” | ||
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---- | ---- | ||
The returned value | The returned value should not be 0xff. | ||
# ps3dm_um /dev/ps3dmproxy read_eprom 0x48C07 | # ps3dm_um /dev/ps3dmproxy read_eprom 0x48C07 | ||
'''5th step''' - Inspect if CORE_OS_PACKAGE.pkg | '''5th step''' - Inspect if CORE_OS_PACKAGE.pkg isn't damaged | ||
---- | ---- | ||
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ps3dm_um /dev/ps3dmproxy update_pkg 1 0x9 CORE_OS_PACKAGE.pkg | ps3dm_um /dev/ps3dmproxy update_pkg 1 0x9 CORE_OS_PACKAGE.pkg | ||
'''7th step''' – Disabling “Product Mode” | '''7th step''' – Disabling “Product Mode” | ||
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# ps3dm_um /dev/ps3dmproxy write_eprom 0x48C07 0xff | # ps3dm_um /dev/ps3dmproxy write_eprom 0x48C07 0xff | ||
'''This step is really important, if | '''This step is really important, if Product Mode is not disabled you will need a dongle to get out of it''' | ||
= | = Alternative Downgrade Method - tested and not working = | ||
'''1st step''' – Enabling product mode | '''1st step''' – Enabling product mode | ||
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---- | ---- | ||
The returned value | The returned value should not be 0xff. | ||
# ps3dm_um /dev/ps3dmproxy read_eprom 0x48C07 | # ps3dm_um /dev/ps3dmproxy read_eprom 0x48C07 | ||
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'''4th step''' - Install CORE_OS_PACKAGE.pkg | '''4th step''' - Install CORE_OS_PACKAGE.pkg | ||
---- | ---- | ||
ps3dm_um /dev/ps3dmproxy update_pkg 1 0x9 CORE_OS_PACKAGE.pkg | ps3dm_um /dev/ps3dmproxy update_pkg 1 0x9 CORE_OS_PACKAGE.pkg | ||
'''5th step''' – Disabling “Product Mode” | '''5th step''' – Disabling “Product Mode” | ||
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# ps3dm_um /dev/ps3dmproxy write_eprom 0x48C07 0xff | # ps3dm_um /dev/ps3dmproxy write_eprom 0x48C07 0xff | ||
'''This step is really important, if | '''This step is really important, if Product Mode is not disabled you will need a dongle to get out of it''' | ||
{{Linux}}<noinclude>[[Category:Main]][[Category:OtherOS]]</noinclude> | |||
Latest revision as of 00:26, 30 October 2021
- This works on FW 3.55 without a physical dongle.
- You should have graf_chokolo's modules, and patches installed.
- Use this method to install a lower firmware.
- Thanks to graf_chokolo for bringing Linux on PS3, with all its goodies back to the PS3 ==
Downgrade Method - Emulating JIG with Linux[edit | edit source]
1st step – Generating a challenge
- ps3dm_usb_dongle_auth /dev/ps3dmproxy gen_challenge
2nd step – Generating a valid response for a challenge
You need a dongle ID. Valid range for dongle IDs is 0×0000 – 0xffff. So choose one, it does not matter which one, but some are revoked !!!
- ps3dm_usb_dongle_auth /dev/ps3dmproxy gen_resp 0xBABE “here is a challenge like this 0xXX 0xXX … of size 20 bytes”
3rd step – Verifying response (Enabling “Product Mode”)
- ps3dm_usb_dongle_auth /dev/ps3dmproxy verify_resp 0xBABE
“here is the response from step 2 like this 0xXX 0xXX … of size 20 bytes”
4th step – Checking if “Product Mode” is enabled
The returned value should not be 0xff.
- ps3dm_um /dev/ps3dmproxy read_eprom 0x48C07
5th step - Inspect if CORE_OS_PACKAGE.pkg isn't damaged
ps3dm_um /dev/ps3dmproxy inspect_pkg 1 0x9 CORE_OS_PACKAGE.pkg
6th step - Install CORE_OS_PACKAGE.pkg
ps3dm_um /dev/ps3dmproxy update_pkg 1 0x9 CORE_OS_PACKAGE.pkg
7th step – Disabling “Product Mode”
- ps3dm_um /dev/ps3dmproxy write_eprom 0x48C07 0xff
This step is really important, if Product Mode is not disabled you will need a dongle to get out of it
Alternative Downgrade Method - tested and not working[edit | edit source]
1st step – Enabling product mode
- ps3dm_um /dev/ps3dmproxy write_eprom 0x48C07 0xfe
2th step – Checking if “Product Mode” is enabled
The returned value should not be 0xff.
- ps3dm_um /dev/ps3dmproxy read_eprom 0x48C07
3th step - Inspect if CORE_OS_PACKAGE.pkg isn´t damaged
ps3dm_um /dev/ps3dmproxy inspect_pkg 1 0x9 CORE_OS_PACKAGE.pkg
4th step - Install CORE_OS_PACKAGE.pkg
ps3dm_um /dev/ps3dmproxy update_pkg 1 0x9 CORE_OS_PACKAGE.pkg
5th step – Disabling “Product Mode”
- ps3dm_um /dev/ps3dmproxy write_eprom 0x48C07 0xff
This step is really important, if Product Mode is not disabled you will need a dongle to get out of it
