A1466 emc 3178 no power symptoms

Question

MacBook Air 13寸 2017年维修指南

在2017年6月，Apple更新了13寸的MacBookair，他换上了更新更好的Intel Core i5处理器，让性能和电池续航时间提高。

20 个问题查看全部 | 27配件购买

Spyder Photography @spyderphot71798

声誉积分: 1

发帖于: 2025年7月29日

更多选项

A1466 emc 3178 no power symptoms

Reviving an old macbook air. no idea of previous status. symptoms- connect mag safe and indicator shows green then switches to solid amber, left an hour to charge, no response from power button. reset prom, cleaned everything and different power source same symptoms. question before I open it up, should it power up connected to mag safe even if battery is dead. looking for additional troubleshooting tips before cracking it open. any advice is greatly appreciated, thanks in advance. A1466 emc 3178

回答此问题我也有这个问题

这是一个好问题吗？

是否

得分 0

添加一条评论

1个答案

DanJ @danj 声誉积分: 497.9千 Self employed contract worker 35 339 975 · Answer 1 · 2025-07-29T17:34:33-07:00

DanJ @danj

声誉积分: 497.9千

Self employed contract worker

35

339

975

发帖于: 2025年7月29日

更多选项

SMC might be latched, let's pop the bottom off and just disconnect the battery with nothing else connected. Follow this guide to Step 3 2017年早期MacBook Air 13寸电池更换. Then press and hold the power button a good 15 secs to fully discharge the logic board this is a hard SMC reset. Now just plug in the MagSafe cord in the system should spontaneously startup. Did it or not? If it did let it fully boot up and do a clean shutdown.

Before reconnecting the battery is the battery blotted do you see any spillage or corrosion? Reconnect the battery and plug the charger in give it a try did it restart?

If the system is still dead after the SMC reset you likely have deeper issues.

这个答案有帮助吗？

是否

得分 0

添加一条评论

MacBook Air 13寸 2017年维修指南

A1466 emc 3178 no power symptoms

1个答案

添加你的答案