Macbook Air A1465 820-3435B

[Sergio Kub]

Good afternoon... Could anyone help me?
I bought an 820-3435B board on Aliexpress and it arrived without charging the battery.
The 1465 820-3435B is working fine, but I connect the MAgsafe, the screen indicates that it is charging the battery, but the Q7155 mosfet (P channel) Gate becomes Hi and does not charge the battery

[mon2]

Re: Macbook Air A1465 820-3435B

Hi.

1) is the battery a known good battery?

2) are you able to view the battery details like serial number, number of charge cycles?

3) try a smc reset:

https://forums.macrumors.com/threads...-down.1963147/

4) is the MagSafe led orange when the battery is connected with the power adapter?

[Sergio Kub]

Re: Macbook Air A1465 820-3435B

MagSafe LED has no light, neither orange nor green, with battery connected or without battery connected...

[mon2]

Re: Macbook Air A1465 820-3435B

Review if you have the +3v42 rail.

[reformatt]

Re: Macbook Air A1465 820-3435B

Check with another LIO board and cable first. Also review the connector J9500 at the base for corrosion etc. You need signals SYS_ONEWIRE from the SMC, in addition to SMC_BC_ACOK present at this connector to get one wire comms. Without it, SMC won't enable battery charging.

[Sergio Kub]

Re: Macbook Air A1465 820-3435B

Yes, 3.42V exists, computer works fine with power from the charger. Does not charge the battery nor does the Mag Safe light turn on green or orange

[Sergio Kub]

Re: Macbook Air A1465 820-3435B

Yes, it doesn't have the 3.42V SYS_ONEWIRE.
I'll get another DC card to test.
Thanks

[Pxxx3104]

Hi. I would just like to ask. It is my first time on troubleshooting apple devices. Does the macbook air a1465 turn on without a battery installes? Only the magsafe charger will be the supply. Thank you for the answer.

[mon2]

Yes.

Review this flow chart:

G3 to S3 State for Ivy Bridge Haswell and Broadwell - LogiWiki