Bios + EC 4QCN45WW(V2.09)

Supported Laptop Systems

2-in-1s Series: ideapad 2in1-14
300 Series: 320S-15IKB (Type 80X5), 320S-14IKB (Type 80X4), 320S-15ISK, 320S-14IKB (Type 81BN), 320S-15IKB (Type 81BQ)
500 Series: 520S-14IKB (Type 80X2), 520S-14IKB (Type 81BL)
Flex Series: Flex 5-1470 (Type 80XA), Flex 5-1570 (Type 80XB), Flex 5-1470 (Type 81C9), Flex 5-1570 (Type 81CA)
Yoga Series: Yoga 520-14IKB (Type 80X8), Yoga 520-14IKB (Type 81C8)


D 220000
W 610000


...

It does not work when we press the power button, it does not work and no light appears. Please help.


lenovo yoga,ideapat 300-11ibr

Hi all,
I have problems with this laptop. At first was completely dead. After ec bios flash laptop starts working. But keyboard and touchpad sometimes works fine and some time not. When it's not working FN keys are fully working only and other keys not also touchpad not working. And other problem is battery or charging. Sometimes battery has for instance 80% and windows says “Low battery”.. and power adapter is connected.
I replace cmos battery because was discharged, flash latest bios from official page lenovo, I resolder all pins of KBC.
I mean my kbc is the problem...

need bios file of lenovo yoga 300-11lbr

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