Is using a custom ASIC firmware from BiXBiT free?

Our software for Antminer, Whatsminer is distributed for free. Please keep in mind that custom firmware includes Developers Fee, which is a reward for developers. Usually it is 1.8%-2.8% of the miner’s total hashrate which is automatically deducted during the work of the device.

Why the ASIC does not start after selecting a profile?

If you mean the very first run after flashing the device, it sometimes takes up to an hour for the inbuilt algorithm to finish configuring your ASIC.

How to bypass the “Cannot Find Signature” message during the flashing process of the ASIC?

Read our user manual for your specific miner version, it describes actions to eliminate this error, when it occurs.

Does the ASIC lose its warranty from the manufacturer when used with a custom firmware?

There is no definite answer. To avoid warranty issues, please use the firmware from the manufacturer.

Is it risky to use the custom firmware for ASIC from BiXBiT?

Absolutely not. All firmware revisions are thoroughly tested before each release. Moreover, all BiXBiT capacities have been running on these firmwares for many years.

Is BiXBiT AMS compatible with microprograms from other developers?

No. Our automated monitoring system is only compatible with our software.

Is it possible to revert the ASIC back to its original settings after using a custom firmware?

Yes, just bring back the official firmware in the usual way.

What level of knowledge is required to flash a miner?

We have specially made instructions for every version of the miner. Everything is described in a simple and clear way, so even a beginner can handle it. Besides, you are always backed with our team of technicians who are always in touch and willing to help.

All documents

4. Firmware Installation and Update

4.1 Preparation for Installing Bixbit Firmware

Install the latest version of WhatsMinerTool. Using outdated versions may cause issues during firmware installation.

Download the BiXBiT Firmware archive and extract its contents into a separate folder
Check the control board model and the version (release date) of the currently installed firmware. This can be done using WhatsMinerTool:

or by viewing it in the Status → Overview tab in the ASIC web interface:
To install the firmware, select the appropriate option depending on the control board model (CB) and the current factory firmware version:

Important:
The firmware installation method, as well as the firmware files selected during installation, are determined by the control board model and the current firmware version, not by the miner model itself.

Control Board Model	Factory Firmware Version	Actions
H3/H6/H6OS	Any	Use WhatsMinerTool and the file `Whatsminer-ALL-Models_x.x.x.x.bin`
H616	Before 13.12.2023	Use WhatsMinerTool and the file `Whatsminer-ALL-Models_x.x.x.x_h616-before20231213.bin`, then install the main file `Whatsminer-ALL-Models_x.x.x.x.bin`
H616	After 13.12.2023	Install an intermediate firmware version via SD card (`Whatsminer-ALL-Models_X.X.X.X.X_h616-after20231213.img`), then use WhatsMinerTool and the file `Whatsminer-ALL-Models_x.x.x.x.bin`
H3/H6/H6OS/H616	Update BiXBiT firmware	Use WhatsMinerTool and the file `Whatsminer-ALL-Models_x.x.x.x.bin`

Firmware installation videos for different control board models: Installing the Updated Firmware Version for Whatsminer

Installing firmware via an SD card completely resets all device settings, deletes logs, and removes traces of custom firmware. This allows you to resolve issues caused by incorrectly installed firmware or incorrect user settings.

Recommendation before sending a device for warranty service:
If custom firmware was installed on the device, be sure to reinstall the factory firmware via an SD card. This will remove all traces of third-party software and reduce the risk of warranty service denial. The use of custom firmware is an official ground for refusing warranty repairs.

4.2. Procedure for control boards H3, H6, or H6os

Launch WhatsMinerTool and set the scanning range to include the IP address of the device on which the firmware will be installed. Start the scan and make sure the device appears in the list.

Step 1: Click [Upgrade].
Step 2: Click [Select File].
Step 3: In the pop-up window, select the file Whatsminer-ALL-Models_X.X.X.X.bin from the archive you previously downloaded and extracted (X.X.X.X is the firmware version).
Step 4: Confirm the file selection by clicking [Open].
Step 5: Check the box to the left of the IP address of the device whose firmware you want to update. You can select multiple devices if they have compatible control board models and firmware versions.
Step 6: Click [Start Upgrade] to begin the update process. In the dialog box that appears, click [OK].
If the update is successful, the Status column next to the device’s IP address will display “Success”. The device will then reboot automatically. After the reboot, open the device’s web interface. If the installation was successful, you will see changes in the interface.

4.3. Procedure for Control Board H616

4.3.1. Procedure for Control Board H616 with Firmware Version Prior to December 13, 2023

If the device is equipped with an H616 control board with a firmware version prior to December 13, 2023, the installation is performed in two stages: first installing an intermediate version, and then installing the final version. Proceed as follows:

Launch WhatsMinerTool and set the scanning range to include the IP address of the device for firmware installation. Start the scan and make sure the device appears in the list.

Stage 1. Installing the Intermediate Firmware Version:
1. Step 1: Click [Upgrade].
2. Step 2: Click [Select File].
3. Step 3: In the pop-up window, select the file “Whatsminer-ALL-Models_X.X.X.X_h616-before20231213.bin” from the archive you previously downloaded and extracted (X.X.X.X is the firmware version).
4. Step 4: Confirm the file selection by clicking [Open].
5. Step 5: Check the box to the left of the IP address of the device whose firmware you want to update. You can select multiple devices if they have the same control board model and a firmware version prior to December 13, 2023.
6. Step 6: Click [Start Upgrade] to begin the installation process. In the dialog box that appears, click [OK].
  
  The Success status displayed in the Status column for the updated device indicates that the installation has been completed successfully. The device will then reboot automatically.
Stage 2. Installing the Main Firmware Version:
1. Step 1: Click [Select File].
2. Step 2: In the pop-up window, select the file “Whatsminer-ALL-Models_X.X.X.X.bin” from the archive you previously downloaded and extracted (X.X.X.X is the firmware version).
3. Step 3: Confirm the file selection by clicking [Open].
4. Step 4: Check the box to the left of the IP address of the device whose firmware you want to update. You can select multiple devices if they have the same control board model and a firmware version prior to December 13, 2023.
5. Step 5: Click [Start Upgrade] to start the update process. In the dialog box that appears, click [OK].
  
  The Success status shown in the Status column indicates that the update has been completed successfully. The device will then reboot automatically. After the reboot, open the device’s web interface. If the installation was successful, you will notice changes in the web interface.

4.3.2. Procedure for Control Board H616 with Firmware Version After December 13, 2023

Note: At this time, installation of our firmware on H616 control boards with factory firmware dated 2025-09-15 is not possible.

If the device is equipped with an H616 control board with a firmware version after December 13, 2023, the installation is performed in two stages: flashing the device via an SD card with an intermediate firmware version, followed by installation of the final version. Proceed as follows:

Stage 1. Writing the Intermediate Firmware Image to an SD Card:
1. Step 1: Prepare an SD card. It is recommended to use an SD card with a capacity of 2–16 GB. Fully format the SD card using Disk Management: right-click the Start button, select Disk Management, and format the card using the FAT32 file system (see the detailed SD card formatting instructions).
2. Step 2: Using the PhoenixCard utility (the PhoenixCard folder is included in the firmware archive), write the image Whatsminer-ALL-Models_X.X.X.X.X_h616-after20231213.img from the downloaded firmware archive to the SD card (X.X.X.X is the firmware version). Refer to the detailed instructions for writing a firmware image to an SD card.
Stage 2. Flashing the ASIC with the Intermediate Firmware via SD Card:
1. Step 1: Before inserting the SD card, disconnect the power cable and wait until all indicators completely stop blinking.
2. Step 2: Insert the SD card and reconnect the power cable.
3. Step 3: After the flashing process is complete, only the green indicator will remain lit. Wait a few seconds, then disconnect the power cable again.
4. Step 4: Make sure all indicators are completely off, then remove the SD card.
5. Step 5: Reconnect the power supply.
Stage 3. Installing the Final BiXBiT Firmware Version:
After installing the intermediate firmware version, launch WhatsMinerTool and set the scanning range to include the IP address of the device for firmware installation. Start the scan and make sure the device appears in the list.
1. Step 1: Click [Upgrade].
2. Step 2: Click [Select File].
3. Step 3: In the pop-up window, select the file “Whatsminer-ALL-Models_X.X.X.X.bin” from the archive you previously downloaded and extracted (X.X.X.X is the firmware version).
4. Step 4: Confirm the file selection by clicking [Open].
5. Step 5: Check the box to the left of the IP address of the device whose firmware you want to update. You can select multiple devices if they have control board models and firmware versions compatible with this section.
6. Step 6: Click [Start Upgrade] to begin the update process. In the dialog box that appears, click [OK].
  The Success status displayed in the Status column indicates that the update has completed successfully. The device will then reboot automatically. After the reboot, open the device’s web interface. If the installation was successful, you will notice changes in the web interface.

4.4. Updating BiXBiT Firmware to a Newer Version on Any Control Board Model

Launch WhatsMinerTool and set the scanning range to include the IP address of the device for firmware installation. Start the scan and make sure the device appears in the list.

Step 1: Click [Upgrade].
Step 2: Click [Select File].
Step 3: In the pop-up window, select the file “Whatsminer-ALL-Models_X.X.X.X.bin” from the archive you previously downloaded and extracted (X.X.X.X is the firmware version).
Step 4: Confirm the file selection by clicking [Open].
Step 5: Check the box to the left of the IP address of the device whose firmware you want to update. You can select multiple devices if they have compatible control board models and firmware versions.
Step 6: Click [Start Upgrade] to begin the update process. In the confirmation dialog that appears, click [OK]. If the update is successful, the Status column next to the device’s IP address will display “Success”. The device will then reboot automatically. After the reboot, open the device’s web interface. If the installation was successful, you will notice changes in the interface.