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Starting from kbooti 0.7.0, a special Jig test mode exists. It reads an IPL block at 0x2000 on the Memory Stick instead of address 0xBFE01000 if the following condition is met:
Starting from kbooti 0.7.0, a special Jig test mode exists. It reads an IPL block at 0x2000 on the Memory Stick instead of address 0xBFE01000 if the following condition is met:


    if ( MEMORY[0xBFEFFFFC] < 0 ) use MS
if ( MEMORY[0xBFEFFFFC] < 0 ) use MS


Indeed, writing 0xFFFFFFFF at 0xBFEFFFFC enables the pseudo service mode and reads the IPL block from the Memory stick. This mode is used by Sony engineers to debug Jig Memory Sticks by writing a kbooti using bloadp and then using reset parameters to set the flag at 0xBFEFFFFC using the sbootp param/arg from the reset command of either dstdb or bsreset (dspreset) such as follows:  
Indeed, writing 0xFFFFFFFF at 0xBFEFFFFC enables the pseudo service mode and reads the IPL block from the Memory stick. This mode is used by Sony engineers to debug Jig Memory Sticks by writing a kbooti using bloadp and then using reset parameters to set the flag at 0xBFEFFFFC using the sbootp param/arg from the reset command of either dstdb or bsreset (dspreset) such as follows:  
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