Power Issue – Marshall Major IV Not Turning On

Hello,

I am experiencing an issue with my Marshall Major IV headphones. When I plug them in to charge, the indicator light turns green after about a minute, which seems to indicate that the battery is fully charged. However, as soon as I unplug them, the headphones do not turn on at all.

I have already tried several troubleshooting steps:

• Using different USB-C cables and power adapters
• Leaving the headphones charging for several hours
• Attempting a forced restart by holding the power button for 15 seconds
• Trying to turn them on while they are plugged in
• Testing them in wired mode with a 3.5mm jack cable (which works)

Despite these attempts, the headphones refuse to turn on and only function in wired mode. Thank you in advance for your assistance.