Firmware is the operating system that runs your miner. There are several source codes created by different manufacturers and different groups of developers. Thus, each machine has its firmware, sometimes in several different versions. Aftermarket firmware opens the door to more control over immersion settings, overclocking, chip tuning, and underclocking. You will have more control over your machine’s operating system.

Aftermarket firmware sometimes builds on stock or is completely rewritten to give you more control over your machine. Firmware developers each have advantages, and one variant of firmware may suit one user more than another. We recommend that our users try them all and see what works best. Practically, we find several advantages to using VNish, and it has a strong auto-tuning function. Ideologically, we like that BraiinsOS included the StratumV2 upgrade, a mining upgrade that is critical in our eyes and gives power back to hashers and not strictly to pool operators. Overall, custom firmware gives you more control over the performance of your machine.

Yes, we have made available to you BraiinsOS and VNish which both allow the overclocking of the machine at the software level. It is also possible to modify the EEPROM of your hashnboard for this but this is less recommended since you will not be able to change the frequency of a lower domain if necessary, which could damage your machine. This is also why only advanced users are advised to overclock their Antminer S19, which represents a substantial investment.

VNIsh firmware is probably the most popular custom firmware. Therefore, the support already existing in the industry makes it a preferred choice. The only real drawback that can be found in this firmware is that it does not have the StratumV2 update on its firmware. According to our sources, nothing prevents this update from seeing the light of day soon. VNIsh is particularly interesting for its vital function of auto-tuning your chips. The VNIsh firmware thus makes it possible to have higher energy efficiency than the performance of the original Bitmain Antminer firmware.

By default, any sale or repair we perform is done with the factory reset and installing the latest version of its stock firmware. We also have excellent results with the stock firmware and have no objections to running it. However, comprehensive benefits can be achieved by running custom Antminer firmware, whether it’s energy efficiency gains or overclocking. However, this brings its own set of problems and complications. Unsophisticated users should be careful and could prefer to stay in Bitmain’s closed firmware to stay within the previous manufacturer’s settings.

The wait for Antminer S19 custom firmware is now over. Not only is VNish completely rewritten for this generation, but it is also available in all 19 series currently on the market. Either firmware for S19, S19 Pro, S19j, S19j Pro, S19i, S19a, S19a Pro, S19-88 and more. Download your copy of the Antminer S19 firmware on this page, either through our manufacturer mirror download link or through the optimized version of VNish.

We are in communication with various groups of developers who ensure that we have stable versions ready for distribution shortly. More details will come as these details materialize. Revisit this page for updates.

Yes, revisit this page for their publication shortly.