X1 Yoga 4th Gen (Type 20QF, 20QG) Laptop (ThinkPad) FX490 NM-B861 REV 1.0

ThienBui

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X1 Yoga 4th Gen (Type 20QF, 20QG) Laptop (ThinkPad) FX490 NM-B861 REV 1.jpg


X1 Yoga 4th Gen (Type 20QF, 20QG) Laptop (ThinkPad) FX490 NM-B861 REV 1.0
BIOS, Schematics FX490 NM-B861 (REV 1.0).pdf
boardview FX490 NM-B861 (REV 1.0) (BDV).pdf
Thinkpad X1 Yoga 4th Gen - FX490 NM-B861 REV0.2 BoardView.tvw
 

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Hello,
Can someone help me to identify which part of MEC1663 (EEPROM 2KB) is storing password please ?
I know in MEC1653 it is last 4 but in MEC1663 must be different.
Thank you.
Regards,
 
ThienBui said:
it is 128kb
Click to expand...
MEC1663 has 290kb (288kb of EC and 2kb of EEPROM). My question is in which part of 2kb in EEPROM password is stored please ? In MEC1653 it was last 4 bits of EEPROM but in MEC1663 must be different area of EEPROM. Can someone with good understanding of MEC chips please help ?
 
RafiManch said:
MEC1663 has 290kb (288kb of EC and 2kb of EEPROM). My question is in which part of 2kb in EEPROM password is stored please ? In MEC1653 it was last 4 bits of EEPROM but in MEC1663 must be different area of EEPROM. Can someone with good understanding of MEC chips please help ?
Click to expand...
no one can know, need to use another file instead
 

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