Power on MacBook 12" A1534 without battery
My MacBook doesn't start and shows permanent the red bad battery sign like on an iPhone when there is no power.
This battery sign doesn't let me through any system. No BootDeviceManager, no Reinstall menu, no maintenance menu, No SMC reset, no NVRAM reset,...
Its just turning off after showing the red battery sign.
I would like to know, if I could bridge the battery contacts. So I could use it as a desktop PC and know if the logic board is broken or the battery.
Can someone tell me where I have to connect which kind of power?
What i found out:
- The big middle contacts seems to be the output pins with 8,59V.
- The Label on the Battery is telling me that it has 7,56V, which is the battery output?
I would assume that I could bridge the 8,59V pins to the pins on the right side next to the output, but I don't know if this is a good idea and if yes, which contact is plus and which is minus. And what is the single left pin for?
Would be cool if i can start this thing without the battery.