Yes ,board view is accurate, I tried other mosfet deferent size but put wires, and still not works, both DCIN changed,with wire from plus input I connected to big resistor on main relay and laptop works ok, with no battery charging of course.
They had already same model and same fix and works to them...so will give as it is
Thank You for your help, always only you trying to help me
Regards
ziko07
Senior Member
Last Activity: 07-25-2025, 10:28 AM
Joined: 06-05-2021
Location: Somewhere
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Update, when bring 19v to main rail laptop starts, I replaced first mosfet,not work still, second is 3x3 very small, can't find but can be BQ ic problem? TnxLeave a comment:
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I can't edit above post, just to tell I noticed when bring 19v to laptop , it draws very short (second) 24mA then goes to zeroLeave a comment:
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Strange, all measurent are in MegaOhms, also I bring 0v8 on main rail not draw any current, will take second wolrking board to take some measurmentLeave a comment:
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Lenovo no Bat+
Hi, I was read about BQ chips but laptops is not mine primary job so can someone help?
I have no V9B+. And first mosfet not open and no any voltage on gate. Not shorted mosfets
Lenovo laptop, sch on image is from same laptop model...
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