Hi,
I disconnected the bios battery, didn't change anything. Disconnected everything not essential, did not work.
Did make the bios reset procidure, didn't work as well.
I'm not sure, what SP1 is, I tought it was one(of the two)/ the eeprom. When I googled the thinkpad, there came up two locations of the eeprom.
Someone in the lenovo forum wrote:
"But, as your laptop can't boot, there might be a problem in the initial BIOS image part - loader. So, there is a chance SPI1 chip or image in it is broken."
One thing, before the laptop didn't start,
there was a bios update done. But it didn't break the laptop, afterwards it worked!
What is the SP1 chip? Flash or eeprom?
Can I read this chip out with a eeprom reader?
What I wanted to do first, check all eeproms I think which are one and read them out. If they failed, I would know then...