Returns & Warranty

Warranty by grade

Grade	Warranty period	Coverage
All grades (A / B / C)	90 days from receipt	Core functional failure under normal installation and operation

What warranty covers

Only core functional failure — the item stops performing the function it was tested for (e.g. a probe stops imaging, a power module stops outputting correct voltage) under normal installation and operation within the warranty period.

What warranty does not cover

• Cosmetic issues already described in the listing's condition notes and photos
• Normal wear consistent with the item's grade
• Damage from improper installation, misuse, collision, liquid ingress, or unauthorized disassembly/repair by third parties
• Fitment issues arising from insufficient compatibility checking before purchase
• Any warranty from the original equipment manufacturer — none applies to secondhand parts

DOA (dead on arrival) claims

If an item arrives not functioning as described, contact us within 7 days of receipt with photos or a short video showing the failure. We will verify and, where confirmed, offer a replacement unit of the same or better grade, or a full refund including return shipping.

Other returns

For non-DOA returns (e.g. fitment mismatch): the buyer covers return shipping, and the refund is issued after the item arrives back in the condition shipped. Return authorization is required before shipping anything back — contact us first.

How to claim

Email or message WhatsApp with your order/PI number, the Zimiao SKU, and photos or video of the issue. We acknowledge every claim within 1 business day and resolve within 7 days.