Battery Firmware Hacking - Hacker Halted

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One last google The processor in the bq20z80 is a CoolRISC c816 (or is functionally equivalent) Sunday, October 2, 11
CoolRISC 816 8-bit micro controller Harvard RISC-like architecture Flash data max size: 64k, Flash instruction: 64k 22-bit instructions 16 8-bit registers No IDA-Pro support RISC architecture is gonna change everything 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
Page 35 and 36: Digression We now know what kind of
Page 37 and 38: Using the API Sunday, October 2, 11
Page 39 and 40: Lots to do! There are many interest
Page 41 and 42: Different modes Sealed Unsealed Ful
Page 43 and 44: Unsealed Access to Data Flash space
Page 45 and 46: Configuration mode By issuing SMBus
Page 47 and 48: Other calibrations? Sunday, October
Page 49 and 50: Other calibrations? Yes, I’m a pr
Page 51 and 52: q20z80evm-001 An evaluation system
Page 53 and 54: The software Sunday, October 2, 11
Page 55 and 56: Data flash Sunday, October 2, 11
Page 57 and 58: EVM It can flash the firmware with
Page 59 and 60: Introspection Wrote a PyDbg script
Page 61 and 62: Google again Googling these types o
Page 63 and 64: Boot ROM - mostly ok See how to wri
Page 65 and 66: Let’s ask TI! Sunday, October 2,
Page 67 and 68: Plz! Sunday, October 2, 11
Page 69 and 70: Intellectual property - Here I come
Page 71 and 72: Intellectual property - Here I come
Page 73 and 74: 3 byte aligned Probably 3 byte alig
Page 75 and 76: 3 byte aligned Probably 3 byte alig
Page 77 and 78: The end Ends in 23 ff ff Then lots
Page 85: Back to google Sunday, October 2, 1
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 and 128: Re-sniffing Shows all values querie
Page 129 and 130: Deal breaker? MU092X Thermal cutoff
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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