Returns & Warranty

All sales are final, except as described below.

New miners

New miners are covered by the manufacturer’s warranty only. Warranty claims go through the manufacturer, and we’re happy to help you start one. Typical lengths: Bitmain about 1 year, MicroBT 1 year, IceRiver about 180 days. Please verify with the manufacturer, because terms vary by model and region. The manufacturer’s warranty may not cover units running third-party firmware.

805’s DOA coverage applies to used units only. Listings marked “Out Of Warranty” are sold new without a manufacturer warranty and have no DOA coverage.

Used miners sold by 805

Used miners are tested before storage and again before shipping. Most come with a 7-day DOA (dead on arrival) guarantee, as stated on the listing. The 7 days start on the day your miner is delivered, according to tracking. If a used listing doesn’t mention DOA, there isn’t one.

How to make a DOA claim

Contact us within the 7 days by Telegram (preferred), WhatsApp or text at +1 (951) 598-1515, or email sales@805mining.com, and send:

• a video of the miner
• its serial number
• a screenshot of the miner’s dashboard, if possible
• photos of any physical damage

Depending on the problem and the machine, we’ll send replacement parts, replace the miner, or refund you once it’s returned to us. On a valid DOA claim, 805 pays the return shipping.

Repairs after delivery

We may be able to help send parts to the manufacturer for repair, but we can’t guarantee it. We usually recommend a third-party repair shop, because they tend to have lower scrap rates and faster turnaround. For miners we host, we attempt an on-site repair first.

Shipping and delivery terms: Delivery Information. More answers: FAQ.