Macbook 820-01521 CD321500Z Question

[MalodicOne]

Macbook

If i take CD321500 from another board and swap both chips from cd521500Z to cd321500 will this work or is there another chip that needs to be swapped with the pair? I am checking now if my partner has a doner board, but i was just curious.

I know they have to be matched to work.

[mon2]

The suffix defines the firmware embedded inside of this power delivery controller. My suggestion is to not replace the part unless it is with the same markings.

Are you confident the PD controller is defective?

Review the LDO rails of each PD controller.

Review this thread:

820-01521-02 - not powering on [SOLVED] | Rossmanngroup Forums

[MalodicOne]

Yea, i found a short on pp3v3_upc_xb_ldo and the chip got hot in this area on injection. Original symptoms were 5v no switch to 20v, one port took 5v and .14 amps other port took 5v no amps.

[mon2]

Ok. Review this vendor. They only deal with resellers but offer quality parts and great service (to date):

USB-C Port Controller IC Replacement For MacBook 12" Retina / Pro 13" / 15"W / Touch Bar (A1534 / A1989 / A1707 / A1990, Early 2015 / Late 2016 / Mid 2017 / Mid 2018 / Mid 2019) (CD3215C00 / CD3215C00ZQZ, U3100 / U3200, BGA-96 Pin) (mobilesentrix.com)

Chat with them and share your concern. Request a part with the same markings as the original.

PS: There is a wiki around that discusses the compatibility of each of these PD controllers. Will link it if I can find it.


1pcs 100% test CD3215 CD3215C00 CD3215B01 CD3215B03 CD3215COO CD3215BO1 CD3215BO3 CD3215C00ZQZR CD3215B01ZQZR CD3215B03ZQZR - AliExpress 502
* reballed PD controllers from working boards - it is an option (demand the same topside markings)

[MalodicOne]

Awsome thank you!

[piernov]

CD3215C00Z and CD3215C00 should be interchangeable if I remember correctly. Other revisions will generally not work (except swapping all B03 with C00). cd521500Z will for sure not work…
Note that there are loads of fake/bad CD321x on the market, always best to take them from a donor board with known history (i.e., one that switches to 20V but has dead CPU/T2/etc…).