Unexpected link down error on 2023 MacBook Pro

drewkia wrote:

What does this mean??? I've taken My 2023 16 inch Macbook Pro to the Apple store twice in the past two weeks. They say there's nothing wrong with it. They ran tests, took off everything and reput it on. Still having the same issue.

panic(cpu 2 caller 0xfffffe0028ed3628): ans2 recoverable panic - assert failed: [14510]:apcie0[2]: unexpected link down linksts=0xa9000200 pcielint=0x00005000, ltssm=0x00(detect_quiet) - power(15) assert failed: [14510]:apcie0[2]: unexpected link down linksts=0xa9000200 pcielint=0x00005000, ltssm=0x00(detect_quiet) rtkit: rtkit-2758.60.101.release - client: t6020.release-applestoragefirmwarepreasp3-499.0.9~3448~499.0.9~3448 !uuid: 5875616f-2644-3783-9ee5-6e62e2de7c94 aslr slide: 0x0000000000000000 time: 0x000000545813ec72 faulting task 15 call stack: 0x000000000001b2f8 0x000000000001ac64 0x000000000001aa7c 0x000000000001d084 0x000000000001e854 0x000000000001e888 0x000000000003ca4c 0x0000000000013190 0x000000000000b45c 0x0000000000008614 0x000000000000ed88 0x000000000000ed80 0x000000000000f450 0x000000000000f864 0x000000000005c53c 0x000000000001a32c 0x000000000001a184 chinook asc async error info: l2c_err_sts 0x5000fbfc00000000, l2c_err_adr 000000000000000000, l2c_err_inf 000000000000000000 lsu_err_sts 000000000000000000, fed_err_sts 000000000000000000, mmu_err_sts 000000000000000000 dpc_err_sts 000000000000000000 mailbox (0): (0) inbox akf_kic_inbox_ctrl = 0x00020001, akf_kic_mailbox_set = 0x11111101 outbox akf_ap_outbox_ctrl = 0x00020001, akf_ap_mailbox_set = 0x000

[Re-Titled by Moderator]

Take it back in.

Some panic-reasons. like this one, suggest a Hardware issue.

ANS2 == Apple NAND Storage version 2 which is referring to the SSD.

The telephone support people are more likely to work with you. They will insist that you go through the motions to eliminate software issues. But when they get to the end of their list, you should insist on having your problem escalated to a specialist. Specialists are more likely to actually read your panic reports, and to agree this is a problem and DIRECT an Apple service provider to swap things (likely mainboard) for a new one.

if you take it to an Apple service provider first, they will likely run diagnostics, report no fault found, and return it to you unchanged. They are generally not trained to read panic reports.

You MUST have a Trusted backup before submitting your Mac for service. if the mainboard is swapped out, the boot drive will be swapped out as well, and you will not get your files back.