Editing Downgrading with linux
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'''You should have grafchokolos modules, and patches installed''' | |||
'''This works on 3.55 without a fisical dongle''' | |||
'''Use this method to install lower firmware! You can install a newer firmware ex 3.60 with this method but you will be loosing your hombrew''' | |||
== 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, doesn’t 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 shouldn’t 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 Produc Mode isn´t disabled you will need a dongle to get out of it''' | ||
= | |||
== '''ALTERNATIVE METHOD''' == | |||
'''1st step''' – Enabling product mode | '''1st step''' – Enabling product mode | ||
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---- | ---- | ||
The returned value | The returned value shouldn’t 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 Produc Mode isn´t disabled you will need a dongle to get out of it''' | ||