LV 07 miner - deliverance / Osvobození mineru LV 07

It's been quite a while since I wrote a post about the Chinese miner Lucky Miner 07, an Open Source copy of the Bitaxe project. I didn't expect any miracles from this product and I perceived it more as a "toy".

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Miner LV07 uses closed software that does not give the user any possibility to verify, modify or optimize the mining process. This makes it a “plug and play” device, but at the same time raises doubts about its real-world performance. In addition, there are suspicions that the device uses non-original or defective ASIC chips, which reduces its credibility.
In contrast, Bitaxe is built on open access. Users have access to the source code and hardware documentation, which allows them to verify the actual performance and modify the device according to their own needs. A strong community around Bitaxe shares tests, improvements and instructions, thus ensuring transparency and trust. Open software also allows for experimentation and development, which makes Bitaxe a tool not only for mining, but also for education and research.
For these reasons, the LV07 is often perceived as a problematic or misleading device, while Bitaxe gains respect for its openness, technical quality, and community approach.

As I wrote above, the LV07 miner is difficult to modify. But it is not impossible.
I went through a few forums, visited a few posts on GitHub and went to meet the challenge. The goal was clear. Install open-source software on the LV07.
For the installation of the Open-Source firmware, I mainly drew from these sources:

https://bitcointalk.org/index.php?topic=5521984.0
https://bitcointalk.org/index.php?topic=5521980.0
https://github.com/un-painted-org/ESP-Miner/wiki

Unlike Bitax, there is no USB on the LV07. So we have to create a USB. There is a USB preparation on the board. You need Dupont F/M cables and a USB converter type CP2102 or CP2104.

It is necessary to solder four cables to the board, three of which are connected to the USB converter.
On the board, we solder RX, TX, GND and I00. RX and TX are connected in a cross on USB. That is, RX/TX, TX/RX. GND is connected to GND on USB. For I00, a Dupont cable M/M can be used, which we then short-circuit GND on the board.

Before further work, you must install CP21xx Drivers. And you can download the software.

Fortunately, there is already an easy solution and it is not necessary to struggle in the command line via Python, which I probably would not be able to do.
So I used the web interface to install the SW.

Now the most interesting part.
After successfully installing the drivers, you need to connect to the device using the "Connect" option. A table with the USB to which we connect will pop up. We select the device type and SW version.
You need to turn on the miner, connect the remaining cable from I00 to GND on the board and press the reset button on the miner board. Then press the flashing option. During flashing, I00 must still be connected to GND on the board.

Wow, it worked. Not the first time. It's written in the forums that the I00 cable only short-circuits for a moment. It gave me a connection error. So I tried leaving it there the whole time and it worked. I also restarted the device several times. It just needs the right sequence.

What do I expect from it? Apparently nothing at all, I definitely don't expect any increase in performance or block finding. Maybe I'm hoping for better stability and more experimentation. I also didn't like the closed SW of the company Minerfixes, which manufactures the machine.
Apparently, there was some pressure on the company Minerfixes in this regard, because they themselves provided "instructions" for updating the firmware on their website. However, this would not be interesting if the company did not refer to the open SW from AxeOS (Bitaxe).