Battery Firmware Hacking - Hacker Halted

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Deal breaker? MU092X Thermal cutoff Sunday, October 2, 11
Deal breaker? MU092X Thermal cutoff FYI: I didn’t see these on the off market battery! Sunday, October 2, 11
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Battery Firmware Hacking Charlie Mi
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About me Former US National Securit
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Spoiler I didn’t blow up batterie
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Smart battery “Safety is a primar
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Possible Battery Attacks Brick batt
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How to start I suck at hardware, so
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AppleSmartBattery Is part of PowerM
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One odd thing What’s up with 0x36
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Double win! We now know its some ki
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Double win! We now know its some ki
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Data flash signature SubclassID:byt
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Step 2 Sunday, October 2, 11
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Step 4 Chips and stuff Sunday, Octo
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Thx: Travis Goodspeed Sunday, Octob
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Sunday, October 2, 11
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Digression We now know what kind of
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Using the API Sunday, October 2, 11
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Lots to do! There are many interest
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Different modes Sealed Unsealed Ful
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Unsealed Access to Data Flash space
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Configuration mode By issuing SMBus
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Other calibrations? Sunday, October
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Other calibrations? Yes, I’m a pr
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q20z80evm-001 An evaluation system
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The software Sunday, October 2, 11
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Data flash Sunday, October 2, 11
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EVM It can flash the firmware with
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Introspection Wrote a PyDbg script
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Google again Googling these types o
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Boot ROM - mostly ok See how to wri
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Let’s ask TI! Sunday, October 2,
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Plz! Sunday, October 2, 11
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Intellectual property - Here I come
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Intellectual property - Here I come
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3 byte aligned Probably 3 byte alig
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3 byte aligned Probably 3 byte alig
Page 77 and 78: The end Ends in 23 ff ff Then lots
Page 85 and 86: Back to google Sunday, October 2, 1
Page 87 and 88: CoolRISC 816 8-bit micro controller
Page 89 and 90: Instruction set Sunday, October 2,
Page 91 and 92: IDA! Create a few small sections, o
Page 93 and 94: More IDA Initial disassembly doesn
Page 95 and 96: Boot ROM Problems Now can dump and
Page 97 and 98: Battery wasteland Sunday, October 2
Page 99 and 100: Try an off-market knockoff Actually
Page 101 and 102: Problem 2 If you patch a few bytes
Page 103 and 104: Checksum checker (old) Sunday, Octo
Page 105 and 106: Disable checksum Older: Set stored
Page 107 and 108: Patch it! patch_firmware function p
Page 109 and 110: Sniffing SMBus Bought some (more) h
Page 111 and 112: Spaghetti wire fail Sunday, October
Page 113 and 114: Pop the keyboard Sunday, October 2,
Page 115 and 116: i2c decoding Write, SBS command 0x8
Page 117 and 118: Beagle data Sunday, October 2, 11
Page 119 and 120: Implications Brick the battery Chan
Page 121 and 122: Firmware changes It might be intere
Page 123 and 124: SMBus MITM Remaining Capacity (0xf)
Page 125 and 126: We redirect to cases 1b-1c int work
Page 127: Re-sniffing Shows all values querie
Page 131 and 132: Fuzzing the SMBus Options Write a f
Page 133 and 134: Caulkgun source - guts #include #i
Page 135 and 136: More info Tools, slides, whitepaper
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Battery Firmware Hacking - Hacker Halted

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