Warranty & Support

Warranty & Technical Support

We want your mining journey to be successful. At Calvin Rig, we stand behind the quality of our Bitcoin solo miners and are committed to providing top-tier technical assistance to keep your rigs hashing smoothly.

1. Technical Support & Setup Assistance
Every purchase includes access to our technical support, regardless of edition. Before any unit ever needs to be shipped back, our team will personally help you troubleshoot — we first determine whether it's a simple software setting issue or a genuine hardware failure, to avoid unnecessary shipping. Every unit is also verified on video before it leaves the warehouse to help expedite any future support requests if a claim is ever needed. If a repair or replacement is confirmed, we act as your exclusive contact window with the manufacturer.

2. Warranty Coverage by Edition

• 🔹 Standard & 👑 Premium: 3-Month Local Warranty (USA, Germany, HK) on all models, covering repair labor and inspection fees only. Replacement parts and round-trip shipping are not included. Repairs are handled at our local service centers — no cross-border shipping to Asia, no customs headaches.
• 💎 Diamond Lite & Diamond: 180-Day Local Repair-First Warranty (USA, Dubai, HK). If your unit develops a genuine, non-human-induced fault within 180 days, we repair it first. Only if the unit cannot be repaired will we replace it with a new one.

3. Coverage Details & Logistics

• Standard & Premium (Repair): The 3-Month Local Warranty covers repair labor and inspection (diagnostic) fees only, for manufacturer defects under normal operating conditions. Replacement parts (e.g., ASIC chips, control boards, screens, or fans) and round-trip shipping to/from the service center are not included; parts are invoiced separately unless covered under the manufacturer's original factory warranty. DOA exception: for a confirmed DOA reported within 7 days of delivery, we cover the repair labor, any replacement parts needed, and the round-trip shipping between you and the local service center (USA, Germany, HK) within your region. After this 7-day window, customers are responsible for both outbound and return shipping costs. No international shipping to Asia is required.
• Diamond Lite & Diamond (Repair First): If a genuine fault is confirmed — DOA or otherwise, any time within your 180 days — we repair the unit first. Only if the unit cannot be repaired will we send you a brand-new replacement at no additional cost. Repair labor and replacement parts are both covered during the 180 days. You are responsible for the shipping cost of sending the faulty unit to the nearest service point; we cover the cost of shipping your repaired or replacement unit back, anywhere in the world.
• Diagnosis First: To avoid unnecessary back-and-forth, we always troubleshoot remotely first via video call or screen share before any unit is shipped for repair or replacement.

4. Warranty Exclusions
To maintain your warranty coverage, please operate your miners within factory specifications. The warranty is strictly voided by overclocking, installation of custom/third-party firmware, improper power supply/voltage, physical damage, water damage, or unauthorized disassembly.

5. Certified Hardware Guarantee (Safety & Reliability)
Many hardware failures and fire hazards in the mining industry are caused by cheap, uncertified power adapters provided by overseas drop-shippers. Every Calvin Rig miner is shipped with a globally certified Power Supply (CE, FCC, cULus, UKCA, PSE), providing a stable voltage supply to your miner and helping maximize its lifespan and safe operation in your home.