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Dev fee of the AsicBoost firmware

Firmware documentation

Dev fee: how much, what for and how to check it

Custom firmware lives on a fee taken from hashrate. The rate depends on the series, so naming one number for all of them is wrong.

SeriesAlgorithmFee
Antminer S and TSHA-2562.8% of hashrate
Antminer L (L7, L9)Scrypt1.8% of hashrate

The mechanics are simple: part of the work goes to the developer pool from time to time. No payments, no subscriptions, no licence keys, the fee is taken right during mining. That money goes into development, support and releases for new models and new locks from Bitmain.

Statuses

StatusWhat it meansWhat to do
OnlineNormal operationNothing
OfflineNo link to the fee poolCheck the internet and DNS, update the firmware
DisabledSwitched off, where the build or the licence allows itNothing
Dev fee block in the firmware interface
Dev fee status in the interface

Connection error

Messages like "DEV FEE ERROR" and "Dev fee offline" almost always mean a network problem, not a breakdown. The order of work:

  1. Check that the ASIC is online at all and that the pools answer.
  2. Check DNS in the network section. Without working DNS neither the pools nor the fee address resolve.
  3. Use the built in connection recovery function.
  4. Update the firmware to the current version, part of these problems goes away with an update.

Honestly about the economics

The fee is counted against the gain, not against all of the income. If the firmware added 15% hashrate and the fee took 2.8%, the net gain is around 12%. If you install the firmware for power savings, the fee is counted against the saved kilowatts by the same logic.

About builds with no fee Modified firmware turns up online with the fee supposedly removed. Inside such builds people regularly find hidden fees higher than the official one, and sometimes malware that walks off with the whole hashrate. Saving 2.8% is not worth that risk.

Quick answers

Is the fee visible in the interface as a separate hashrate line?
The deductions are not shown as a separate line. Go by the difference between the average hashrate in the interface and on the pool over 24 hours.
Is the fee the same on all models?
No. On the S and T series it is 2.8%, on the L series 1.8%.
What happens if I cut the ASIC off from the internet?
The fee goes offline, and mining either stops or keeps running for nothing, depending on the settings. There will be no income at all, the shares do not reach the pool.
Written by , ASIC repair and tuning engineer at asic.es.