I've got a MacBook Air (2020, M1, A2337, EMC 3598, 2-ports, Sequoia) that will not charge. When connected, the battery's "lightning bolt" is not displayed and the battery panel shows no charge and a very slowly discharging battery level in its graph (it also shows energy usage in its graph). At this point, I can think of no other possible culprit than the logic board itself. I have tried:
• Forced Rebooting
• Using two different chargers (both tested and known-good)
• Swapping out USB-C cable (the existing one was bad but replacing it with known-good hasn't helped)
• Resetting the SMC (shut down for 30+ seconds)
• Force-resetting SMC (disconnect battery for 30+ seconds)
• Removing and cleaning the USB port connectors
• Cleaning and reseating the USB port connector board
• Replacing the USB port board
• Replacing the battery (both old and new show "normal" condition and 100% maximum capacity but neither charges)
• Connecting a USB tester: With known-good charger and cable, the tester shows a 5V/.44A trickle of current flowing to the device but the battery does not charge. This flow is displayed whether or not the laptop is running. I have performed this measurement after performing each of the steps above.
• In addition, the device powers up every time it is plugged in. I have made sure that "wake on lan" is set to "off".
Before I order a logic board and perform a replacement, does anyone knows of any other diagnostic or remedial possibility?
Thanks for the time and energy you spent reading this and, in advance, for any advice.
• Forced Rebooting
• Using two different chargers (both tested and known-good)
• Swapping out USB-C cable (the existing one was bad but replacing it with known-good hasn't helped)
• Resetting the SMC (shut down for 30+ seconds)
• Force-resetting SMC (disconnect battery for 30+ seconds)
• Removing and cleaning the USB port connectors
• Cleaning and reseating the USB port connector board
• Replacing the USB port board
• Replacing the battery (both old and new show "normal" condition and 100% maximum capacity but neither charges)
• Connecting a USB tester: With known-good charger and cable, the tester shows a 5V/.44A trickle of current flowing to the device but the battery does not charge. This flow is displayed whether or not the laptop is running. I have performed this measurement after performing each of the steps above.
• In addition, the device powers up every time it is plugged in. I have made sure that "wake on lan" is set to "off".
Before I order a logic board and perform a replacement, does anyone knows of any other diagnostic or remedial possibility?
Thanks for the time and energy you spent reading this and, in advance, for any advice.
