looks like there is a chance they fixed it

Antminer-S9-LPM-20181102.tar.gz    1. 不支持C5控制板
2. 可以降低矿机功耗
3. 条件不满足时自动以常规模式运行，此时功耗为正常功耗
4. 有少量矿机可能升级后会出现算力低，不稳定等现象，请重新刷新回原版固件
5. 修复部分BUG

1. Not support C5 control board.
2. Reduce power consumption.
3. Automatically abort the upgrade if the criterion is not met.
4. Please revert to the previous version if the miner is not stable after upgrade.
5. Fix the known bug