My yoga 900 wont turn on and the charge light not lit.
I stupidly bought and plugged in a cheap power charger to my Yoga 900. It was going to be my portable back up.
It immediately shut the computer down.
The charging light was NOT lit on.
I then tried to used my OEM charger. The light still doesn't turn on.
I pulled the back cover off and took the battery off. Held to power button for a minute to dissipate the capacitive charge. Reconnected the battery. Still NOT on. Charging light still NOT lit.
I heard that the CMOS may need to be replaced?
I dont think this yoga 900 comes with one?
The manual said the system board needs to be replaced?
Update (07/31/2017)
It looks like the power port connects directly to the system board.
See attached pictures from the Lenovo Hardware Manual
crwdns2934109:0crwdne2934109:0
crwdns2944067:05crwdne2944067:0
When you took it apart was there a daughterboard beside the motherboard with the power port on it? Or was the port connected to the motherboard?
crwdns2934271:0crwdnd2934271:0 Chase crwdne2934271:0
It looks like the power port connects directly to the system board.
crwdns2934271:0crwdnd2934271:0 Sunny crwdne2934271:0
did you solved somehow?
crwdns2934271:0crwdnd2934271:0 julian pablo Villarpando crwdne2934271:0
I have the similar problem. Neither it charges nor boots. There is no sign of life at all! As warranty is over, I want to fix myself. I just would like to know possible solutions. Replacing power jack cable, battery or etc.
crwdns2934271:0crwdnd2934271:0 ahmet ozkaya crwdne2934271:0
I also did the same mistake, bought cheap charger not to carry to office everyday. I don't want to invest more unless I'm sure changing power port will the problem. (I dont think power port is the problem, because it seems only a wire).
crwdns2934271:0crwdnd2934271:0 ahmet ozkaya crwdne2934271:0