Technical Crisis | S21 200T Miner Seeks Answers
A wave of frustration is sweeping through tech forums as issues with the S21 200T miner persist. After a power supply unit (PSU) replacement, many miners face ongoing read/write errors across all chains, following an April 2025 firmware update.
The Tech Troubles Continue
Many people are echoing concerns, noting the miner struggles with failures such as:
Read/Write Errors: Problems reported on all three chains, attributed to potential memory errors on the control board.
Firmware Lockouts: Users express dissatisfaction over not being able to revert to previous firmware versions.
Limited Manufacturer Support: Many feel neglected by Bitmain as they navigate these persistent issues.
"I think it is definitely the board," one frustrated miner said after checking the voltage regulation cable and swapping power supplies. Another poster added, "This miner is a useless POS! We need answers!"
Emerging Themes from the Community
As the dialogue unfolds, three main themes have emerged from user discussions:
Aftermarket Control Boards: Some users are recommending alternative solutions, such as using third-party control boards to bypass issues.
Challenges Flashing Firmware: Attempts to flash previous firmware often result in complications due to locked NAND memory, frustrating many.
Undefined USB Functionality: There's uncertainty over the purpose of the Micro-USB port, with questions about its role in firmware flashing.
"This is not the user experience we signed up for," lamented one miner, highlighting the prevalent dissatisfaction among the community.
Troubleshooting Techniques Discussed
Active discussions have also led to new tactics for resolving the 200T issues:
Cable Reseating: Many recommend double-checking all connections and even disconnecting one chain, though it complicates booting.
Trying Different USB Drives: Users share failures when attempting to flash firmware with various USB drives, pointing to possible faults with the control board.
Community Impact
The collective struggles are fostering solidarity within the mining community. Online forums act as vital support hubs, where people lament their situations and share hard-earned solutions.
Key Insights
🌟 Desperate Solutions: Users suggest aftermarket control boards as potential solutions.
⏳ Frustrating Firmware Attempts: Many report failures when trying to roll back firmware.
🚨 Seeking Technical Knowledge: Questions swirl around the role of the Micro-USB port on the S21 AML control board.
As this situation evolves, the urgency for clarity from manufacturers grows stronger, driving users to seek effective solutions and support.