Lenovo Y50-70 only charges when turned off.

[Darren Hibbert]

I have a Y50-70 gaming laptop. It has a problem where it charges up fine when the laptop is off, but when it's on, it doesn't.
I've tried a new 135w charger + new Lenovo battery and a new charging port but it made no difference.

I've updated all the drivers and still no difference.

Could it be down to a dodgy chip? I'll see if i can find a schematic and someone on here might be able to direct me where to test

Many thanks in advance.

[Darren Hibbert]

I found the problem. Somebody had previously changed the charging port. However on closer inspection and with help from a boardview, the manafacturer of the port had wired it incorrectly. One of the ground wires was wired where a data line should have been and the data line was wired into where the ground should have been. Charging perfectly now

[mon2]

The Lenovo Y50-70 laptop charging only when turned off indicates a potential issue with the power management settings or a hardware problem. It could be related to the "fast startup" feature, the power management settings within Lenovo Vantage, or a hardware problem with the battery or charging port.
Here's a breakdown of potential causes and solutions:
1. Fast Startup:

• Fast startup can sometimes interfere with charging when the laptop is off.
• Solution: Disable Fast Startup in Windows power options: Go to Control Panel > Hardware and Sound > Power Options > Choose what the power buttons do > Change settings that are currently unavailable > Uncheck "Turn on fast startup".

[Darren Hibbert]

Turned fast startup off, same problem.

[mon2]

https://forums.lenovo.com/t5/ThinkPa...ly/m-p/4483670

[Darren Hibbert]

Thanks for that. Unfortunately my laptop is not in airplane mode so the problem continues. I think it's probably a motherboard issue which I'd like to get to the bottom of.

[mon2]

Enter the BIOS - what are the stats of the mated power adapter?

3. Locate AC adapter information

• Within the relevant section, look for entries such as "AC Adapter," "Battery Information," or "Power Management".
• You may see information about the AC adapter's status (detected, not detected) and possibly its wattage.

[Darren Hibbert]

I found the problem. Somebody had previously changed the charging port. However on closer inspection and with help from a boardview, the manafacturer of the port had wired it incorrectly. One of the ground wires was wired where a data line should have been and the data line was wired into where the ground should have been. Charging perfectly now

[mon2]

Very nice. Most adapters are intelligent now. The bios often can serve as a confirmation of what the logic sees or does not see. Suspecting that the adapter was assumed to be under rated due to missing adapter ID line.