Antminer S21 Pro / S21 XP / S21+ Specialists
Next-generation ASIC maintenance. We provide **advanced chip-level repairs** for the Antminer S21 PRO/ S21 XP/ S21+ series, focusing on high-efficiency performance restoration and complex power rail diagnostics.
Full Overhaul
Deep cleaning and premium thermal interface material refresh designed for S21 high-heat environments.
Short Circuit Fix
Expert diagnostics for **Domain Voltage** shorts and PIC/EEPROM communication failures.
Stability Tuning
Resolving "missing boards", "SOC init failed", and low hashrate issues on S21 Pro/XP units.
Chip Replacement
Precision replacement of BM1368 ASIC chips using professional reflow stations.
Proven Track Record on eBay/Contract
100% Honest Feedback from Verified ASIC Owners
"Great guy, answered all my questions... Good fast work, best prices."
"Best service out there. Doesn't overcharge for repairs unlike other services. Definitely will be using again."
"Awesome service had it fixed and shipped back in a matter of days... highly recommend them."
Need your S21 PRO/XP/+ Series Repaired?
Professional mail-in repair service for all S21 PRO S21 + S21 XP models.