MSI Bravo 17 A4DDR - Strange Battery/Boot Issue (0% reported but stays powered on)
Hi everyone,
I’m looking for some help with a long-standing issue on my MSI Bravo 17 A4DDR. This has been happening for a couple of years, but I’ve mostly ignored it by keeping it plugged in. Now I need to use it as a portable machine and the behavior is very strange.
The Problem:
Cold Boot Issue: If I charge the laptop and try to turn it on later without the charger connected, one of two things happens:
The screen stays black and Windows never loads.
It boots normally, shows 100% battery, but shuts down abruptly after a few seconds. It won't respond to the power button after that.
The "0% Ghost Charge": When I plug the charger back in, the laptop turns on but stays on a black screen. I have to force a shutdown (long press power) and turn it on again to reach Windows.
The Weird Part: Once in Windows, it shows 0% battery (plugged in). However, if I unplug the charger, the laptop does NOT die. It keeps running for hours as if the battery were full, but the OS continues to report 0%. It seems the battery isn't actually drained; the system just thinks it is.
What I’ve Tried:
EC Reset: I’ve attempted the EC battery reset (holding the power button/using the reset pinhole), but it didn’t seem to fix anything. It’s possible I’m doing it wrong for this specific model.
Check Battery health: Previously I've run different Battery reports, but the resulta does not make any sense
Here are the Battery reports:
https://drive.google.com/drive/folders/1FfQIrQQO7ZSdUat0Qoi2OyZWtq\_VBwND
Additional Context:
Charger Noise: Recently, my charger started making electrical buzzing/hissing noises (sounds like coil whine). This is new, whereas the battery boot issue has existed for years. Could they be related, or is my charger just dying now too ? Should i be worried or Is this normal ?
Is this a calibration issue, a failing BMS on the battery, or something deeper on the motherboard? Has anyone seen this "0% charge but stays on" behavior before?
Any advice for this model or BIOS settings to check would be greatly appreciated!