I have tried to upgrade to 2.7.1-1.0.7 using webgui, but after refreshing www.bin or esp-miner.bin, the webgui and display do not work, but the fan will run at full speed and the restart button does not work.

Using 2.6.0-1.0.3 does not work completely, and the LOG will show the following error message.

₿ (20493) i2c.master: I2C transaction unexpected nack detected
₿ (20503) i2c.master: s_i2c_synchronous_transaction(918): I2C transaction failed
₿ (20503) i2c.master: i2c_master_transmit_receive(1214): I2C transaction failed
₿ (20513) i2c_bitaxe: Device TPS546 (0x7f)
₿ (20523) TPS546: Could not read Vout
₿ (20523) i2c.master: I2C transaction unexpected nack detected
₿ (20533) i2c.master: s_i2c_synchronous_transaction(918): I2C transaction failed
₿ (20543) i2c.master: i2c_master_transmit_receive(1214): I2C transaction failed
₿ (20543) i2c_bitaxe: Device TPS546 (0x7f)
₿ (20553) TPS546: Could not read Iout
₿ (20553) i2c.master: i2c_master_transmit_receive(1200): i2c handle not initialized
₿ (20563) i2c_bitaxe: Unknown device
₿ (20573) TPS546: Could not read Vout
₿ (20573) i2c.master: i2c_master_transmit_receive(1200): i2c handle not initialized
₿ (20583) i2c_bitaxe: Unknown device
₿ (20583) TPS546: Could not read Iout
₿ (20593) TPS546: TPS546_0 - Got Temp: 31
₿ (20593) i2c.master: I2C transaction unexpected nack detected
₿ (20603) i2c.master: s_i2c_synchronous_transaction(918): I2C transaction failed
₿ (20613) i2c.master: i2c_master_transmit_receive(1214): I2C transaction failed
₿ (20613) i2c_bitaxe: Device TPS546 (0x7f)
₿ (20623) TPS546: TPS546_1 - Got Temp: 31
₿ (20623) i2c.master: i2c_master_transmit_receive(1200): i2c handle not initialized
₿ (20633) i2c_bitaxe: Unknown device

Hey man, first of all, thanks for you work! I got into these things a while ago. Ordered one, until I saw that they are closed source, which was a bummer. I was like: Isn't there a way to make these open source again? So I went on Google and got here. Decided to order some wires, a JTAG pin block, a CP2104 and here we are. Last weekend I finally made the attempt to solder the JTAG block on. Seems easy, but I think I had my soldering iron a bit to cold, because I needed a few attempts at it in order for it to work. The solders seemed nice, but somehow I didn't get a connection via the CP2104. Tried a different CP2104, and that also did not work, until I finally got some results while reading the device, but the characters were not readable. So I got my multimeter out, and checked my connections, only to find out the solder for the GND was not great. It made contact, but not great. So, bumped up the temps on the soldering iron and went over everything again, and then it finally worked It was kinda rewarding to see the logfiles scroll through my debugger screen. It's also pretty responsive. Quite surprised! So, now with the connection fixed, I went and flash the stable release with the configuration using bitaxetool. And it worked. Did some testing. Let it mine for a bit. Checked the temps, everything was fine.

Then I saw that there is a new version on Github, which is: v2.6.6b1-1.0.6. Flashed that, and that also seemed to work. The only problem was, that the temps went up on the ASIC pretty fast. That is when I saw that the fanspeed was pretty low. Around 900 to 1000 RPM on automatic. And it does not ramp up when the temps increase. So i quickly set the fanspeed manually to 80% and that is fine. ASIC temps are now around 59 degrees celcius.

Is this a known issue with this version?

I got to say, I removed the original fans, and put on a 3D printed fan shroud, to fit a 140mm fan on the back of the case (To have airflow to the PSU too). But that worked well with the other firmware. So it seems like it's an issue with version v2.6.6b1-1.0.6 for me. For now I will keep the fan speed on manual @ 80%. But it would be nice if I could use the automatic fan control again. The fan I use is this one: https://www.bequiet.com/en/casefans/3706 - This is a great upgrade If anyone wants to use it, make sure that you have airflow to the PSU and set the fan to UHS (ultra high speed) because otherwise it will be quiet for sure, but it won't flow enough, so it won't cool the device down enough.

Oh i also removed the heatsinks, and removed the stock thermal paste. Put on ThermalGrizzly Kryonaut. That didn't lower the temps much, maybe 1 degrees celcius, if anyone was wondering. But I think it will be better for the long run, because the stock thermal paste is kinda meh. Also put some thermal pads on those silver blocks, near the VRM's? Is that correct? Those didn't make any contact with the stock heatsink.

Anyway, thanks for everything! Feels good to have this thing open source again.

Hi guys,
   I have update my two luckyminer Lv07 with the last stabile 2.6.1 firmware from https://github.com/mrbonkerz/ESP-Miner-LVXX with 575Mhz/1.200v setup.

I use the factory fan with manual setup to 85% speed: the Asic temp Is 49/50 C. I replaced the noctua 12v because It not works well: It runs at max 2000 RPM, too low.

Also I am testing the new luckyminer LG07 Scrypt: It works very good on molepool on LTC+DOGE+BELL.
This miner works on 650Mhz/6.50v with a very low temp of 38 C for 11M hashing and 10w.
I replaced the fan with a noctua 12v that run below 2000 RPM, very silent miner...

B10

I had to help 2 persons who flashed your factory 2.61.-1.0.4 image on a virgin LV08 with luckymineros.
Resulted in only 33% of hash power, only 1 of 3 VR's enabled.
In order to confirm, I had one virgin LV08 left that I converted my self and I can confirm

It turns out it has the config.csv from the LV07 is included in the LV08 factory image.
The LV07 has only 1 VR gets initialized and you only get 1/3 of the hash rate.
downgrading to 2.6.0-1.0.3 and upgrading www.bin & esp-miner.bin to 2.6.1-1.0.4 works great


Might want to look into that

Thank you for all your efforts

What command did you use to save the original firmware. Thanks for the porting the AxeOS...

iambonkerz, after some time, I noticed that LV08 with latest firmware has twice as much shares compared to LV07 for the same time. How do you think is it ok or should i roll back to an older version?

https://talkimg.com/images/2025/04/04/lK7JN.png

Have updated my lv08 to v2.6.1-1.0.3 from stock firmware v. 1.0.0. What i noticed is that WiFi connection became more stable ping around 3-10 ms, asic temperature lower to 5-7 degrees, fans quieter.
Thank you!

Hi
I bought a LV08 and I didn't realised the software was so locked down.  I have a BitAxe Gamma, and this is great.
Since the LV08 has "no upgrade Firmware" option, does anyone have any details on how I can put a different firmware onto it ?
I don't want to brick it, but I always don't want the (probably) untrustworthy Firmware on it.

THANKS

Someone flashed his LV08 with the latest greatest 2.6.0-1.0.3.bin image and his unit shows up as a 402 board:

Flashed with "bitaxetool -p COM4 -f esp-miner-factory-lv08-v2.6.0-1.0.3.bin"

It is working, but afaik:


My LV08's all show 302 board

Any idea ?
---------

In the source file is a config-lv08.cvs that reads:
$ cat config-lv08.cvs
{snip}
devicemodel,data,string,lv08
boardversion,data,string,402
{snip}

Just adjusting freq/voltage.
I haven't changed anything in the cooling as of yet.
Arent the VR's already cooled ?
I think the heatsink is rather fragile:
The 3 VR's at the PCB:
https://www.dth.net/pmt/luckyminer/img/VR1.jpg
And the heatsink
https://www.dth.net/pmt/luckyminer/img/VR2.jpg

You convinced me:

My old overclocked situation:

615 Mhz /1235 mV  -> 5.1  Th/s at 158 watt AC input.

Now:
557 Mhz /1150 mV  -> 4.39 Th/s at 112 watt AC input

for 16.4% more hash power, I need 41% more power

I am running 615/1235
Average: 5.10 TH/s
Average: 26.66 J/TH
ASIC temp 60C
VR temp 75C

First of all thanks for the work done.
I just flashed my lucky miner lv08 with the forked version of Bitaxe v2.6.0-1.0.2.
In the settings I set the following configuration:
Frequency 550
Core Voltage 1250

How much did you set it to?

thanks

Am I reading it correct that you closed the PR at Skot's bitaxe source tree ?
https://github.com/skot/ESP-Miner/pull/700 

I got into a heated argument with skot about support for LuckyMiners.


https://www.dth.net/pmt/bitaxe/skot_renaming_PR.jpg

https://www.dth.net/pmt/bitaxe/classy_response.jpg

My LV08 runs cooler than the stock version. Thank you for making this possible. 

Thank you for your work :-). Will try this on my lv07 and my lv08. Because at one pool i got only invalid shares. but there was something weitd. One out of 3 LV08 shows me on the /test site that i have 10 chips. Today it was 9 again.

This keeps happening to me.
I am currently running V2.6.0-1.0.1 on my LV08
After 2 hours of uptime it suddenly drops hashing like this:

https://imgur.com/a/ouHjJIm

It averaged 5Th/s using 600Mhz at 1205 mV averaging 24.5J/TH for nearly 2 hours and suddenly it drops to 3.1th/s
It did not overheat: 55C asic temp


I was pushing this same hardware with the original LuckyMiner OS to 650/1260 and it averaged 5.35Th/s

Any suggestions ?

Hello Bonkerz

Yes, I managed to get my LV08 working fully a couple of days ago on v2.5.1-TCH which is forked from skot as well. While the modifications you made to the TPS546.c file communicate to all 3 TPS546 regulators at the same time, it doesn't allow you to query each regulator independently. I went for this approach:


And so I had to add another variable to all the relevant functions:
TPS_IDX = {0, 1, or 2}


When I need to update the dashboard temperature of the TPS546 devices on the LV08, I query all three but only display the highest temperature. Also power in watts is an accumulation of all 3 TPS546 device's power (voltage * current), with an offset of 18 watts added (6 watts for each regulator). This exactly matches the results I got from the original Lucky Miner v1.0.0 firmware...