(Review/Guide) BW.com BW-L21, 550 Mh/s, 950W Litecoin (scrypt) ASIC miner

[cedric10]

Hi,

His someone have acheved an update with firmware 2.10.3 ?

I buy two pieces , with firmware 2.8.0 , the interface dont show the temp.

I try to update with putty, and the firmware 2.10.3 dont work.

thanks

[cedric10]

Also, if you will lower the frequency, i would suggest detaching the external fan. If you lower the frequency, the power usage also lowers and the boards radiate less heat. This is however something i would recommend doing during lower temperatures and not in the middle of the summer... although the miners we are not selling are doing just fine with this "hack".

I'm interssting with this, Whats is the  lower frequency you run.

Thanks

[EnglishGentleman]

Hi - Can you repost a link to the 2.9 firmware please. I'm having some problems with some LW-B21
[


quote author=apax link=topic=2118409.msg35356314#msg35356314 date=1524445717]
There's still no official release of the new firmware so I'll try to share it with you.
It's not as easy has the previous updates, but I've managed to do it with no problem having only a very basic knowledge of unix terminal.

These are the instructions I received via email from hyperbit:
 

Code:

1. You'll need sshpass and parallel installed on whatever machine (UNIX) the script is run on. Links below.
2. tar -xzf 2.9.0.tar.gz
3. cd 2.9.0
4. Edit ip.txt and specify the IP address of the machines you want to update (one per line).
5. ./run.sh

Note, there will be lots of output as each machine is updated. 
Some of it may look like failures, this is ok and can safely be ignored. 
The updater is built to work across many potential versions and tries to fix various things on the system. 
Some of which may already be fixed, so the output reflects that.

Install sshpass: https://gist.github.com/arunoda/7790979
Install gnu parallel: https://www.google.com/search?q=install+gnu+parallel
If you're using Mac as me you'll need to install brew

firmware files: https://www.dropbox.com/s/indgp8nlnk3372s/2.9.0.tar.gz?dl=0
*please note it's my dropbox link, they sent it to me via email.
[/quote]

[coffeefan]

Guys, how the BW-L21 compares to the Bitmain L3 in terms of reliability / stability?

[apax]

As you can see everyone complains about L21. They just suck  don't know about L3, never had one.

link for 2.10.3
  https://www.dropbox.com/s/xh41gw6p0o8ky9i/2.10.3.tar.gz?dl=0

[hogito]

Apax do you still have any L21's?  I'm curious if anyone has any of the firmware versions prior to the 2.10 disucssed here. 

[kurbeks]

As you can see everyone complains about L21. They just suck  don't know about L3, never had one.

link for 2.10.3
  https://www.dropbox.com/s/xh41gw6p0o8ky9i/2.10.3.tar.gz?dl=0

If you mean L3 from Bitmain, then they are relatively good. Much better than D3 on stability. Although i got one L3 which got power connectors on controler board soldered other way around. Replacement also didn't work correctly, in end i think i wrote it off.

[apax]

Apax do you still have any L21's?  I'm curious if anyone has any of the firmware versions prior to the 2.10 disucssed here. 

I still have, why?

[dagarair]

So forgive me as i am not great in linux

I have installed on my linux laptop:
sshpass:
gnu parallel:
then downloaded 2.10.3
then tar -xzf 2.10.3.tar.gz
then cd 2.10.3
then Edited the ip.txt and specified the IP address of the test machine to update
then sudo ./run.sh

It does some stuff and i do see the BW-L21 reboot but then it comes up at bottom BwVersion2.8.0.  I assume it did not take update right?


ALSO has anyone made a mod firmware for this like Bliss etc.  I'd pay a few bucks for it.  Id like to mod freq and voltage etc like you can on the antminers

[apax]

The version you see is the UI version, not the firmware that UI is the same.

there is a file inside the miner that has the firmware version but I can't remember the path to it, however if now you have the temperature showing up you've updated it.

[dimke_yu]

Hi guys, I need little help. I have few dozen BWL21 that are not working and they are unable to show on network so my guess is that firmware is somehow broken. So I need source firmware file for flashing directly on chip using eeprom. I already wrote to BW and Hyperbitshop but no answer. If someone can help I would appreciate that.

Cheers!

[apax]

Are you able to detect them in your network? How do you want to use eeprom?

One of mine recently died. It makes noise but the ethernet lights dont blink. I've replaced a small controller chip that burned but still dead.

Here's the latest firmware I have:

https://www.dropbox.com/s/ujvyjyznhob0nly/2.10.3.tar.gz?dl=0

[dimke_yu]

Hello and thanks for the reply

Well situation is kinda messy, I have devices that are viewable on the network and some that are not. Issue is there are units with 2.0 firmware and when I updated them to 2.8 they stoped showing on the network. I got chips and adapter for eeprom for control board so I need to try and flash new chips with file that is for that use and not these updates that are for devices that are working. Probably your control board died... or some part of it...

[apax]

That's over my experience and knowledge to help you further.

I know the issue is on the controller board, but besides a physical examination I can't do much. I found a controller that looked burned and replaced it but still dead. When I change the board with other one it works so I know the hashboards are fine but I don't have any spare controller to use...

[dimke_yu]

I see, I also have similar problem with non working control boards and good hash boards. I hope I will find solution for those devices, thing is those files exist but I do not know where...

[MoparMiningLLC]

I have three of these miners - my only issue is that on the gui they all read at running between 550 mh/s to 600 mh/s but no matter what pool I try the pool only shows 375 mh/s to 425 mh/s

I am not sure what version fw I have as it is mostly in Chinese which I cannot read but I would love to have the newest official fw, if anyone knows of an official source - not to keen on just downloading random fw though.

***edit***

I found that the fw I have says "BwVersion2.8.0"  -- maybe this is the latest fw?

[apax]

That's the problem with them. Never reaching 550 on pool

[MoparMiningLLC]

That's the problem with them. Never reaching 550 on pool

very rarely and I mean very rarely do they on the pool reflect the combined hash rate of 1.65 gh/s and if they do it is not for long - so yes, I do agree that is an issue.

other than that the only issue I have is the power usage - the seller stated they ran at 850 watts and not at the advertised 950 watts - mine run at 925 to 950 so the seller was wrong.


that aside, the units otherwise perform issue free. I dont have to restart them continuously, they are not overheating etc

[Philipma1957cellphone]

That's the problem with them. Never reaching 550 on pool

very rarely and I mean very rarely do they on the pool reflect the combined hash rate of 1.65 gh/s and if they do it is not for long - so yes, I do agree that is an issue.

other than that the only issue I have is the power usage - the seller stated they ran at 850 watts and not at the advertised 950 watts - mine run at 925 to 950 so the seller was wrong.


that aside, the units otherwise perform issue free. I dont have to restart them continuously, they are not overheating etc

those the ones I escrow with main account. Came from europe. Lite in packing.  Correct? Did they roi by now?

[MoparMiningLLC]

those the ones I escrow with main account. Came from europe. Lite in packing.  Correct? Did they roi by now?

yes - those are the ones - and I would say I am close to if not made roi by now - depends on when/if I cash out the LTC - nearly 4 LTC since then.