You can PM us or email
info@bitmaintech.com with your original Order Confirmation page from
http://www.Bitmaintech.com with full order details. Please include the brief description of what is wrong with your miner. (or what you think it is not working)
RMA should be offer to you promptly.
or you can simply return the miner in the original package to the following address for diagnostic/replacement/warranty with a tracking number. (Must include the Bitmaintech.com original order confirmation page print out or if purchased elsewhere, the purchase confirmation where you purchased it from, and a brief description of what's wrong with it along with printed return address, phone number and an email address) If the item was defective, a fully working unit will be return to you.
Bitmain Warranty
3700 Quebec St. #100239
Denver, Colorado 80207
Telephone: +1-844-248-6246 Option 2
Do you have any experience with warranty claim for bitmain.com /error miner S3+/?
I have fail miner S3+. Its have only 220GHs speed.not working second hash board...