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

[notey]

@apax
Thanks for sharing this info.
Good to know that they are working on a solution to fix the issue.

Would like to note here that over the last week our L21s have been hashing well at prohashing.  The accepted rate is almost at dashboard level for about 1/3 of them and is in the mid-500 MHs for most.

What's the pay system you chose ? I been meaning to try prohashing .

Varies - right now I'm getting paid in LTC and BCH, but there are dozens of approved coins to be paid from.

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[apax]

using pro hashing and choose LTC is more profitable than actually mine LTC?

[HagssFIN]

I have updated this review slightly and there is now also a nicely formatted version available (.pdf document).  

Nicely formatted version (February 17, 2018) available for download here (Mega.nz cloud service):
https://mega.nz/#!0oVThaRD!UJT-TMD4w8p2m4CoZCwfdu-i50h3U8znLKD-sm8IKYE

EDIT:
I wanted to try out this new platform and the review is now also available in the Steemit blogging website.
Link: https://steemit.com/review/@hagssfin/review-guide-bw-com-bw-l21-550-mh-s-950w-litecoin-scrypt-asic-miner

I'm still going to continue as before. Posting here at the Bitcointalk.org forum is my priority number 1.

[Seph213]

Seems like hyperbit stopped all comunications . Use to have some kind of dialogue with them but nothing for weeks now.

Anyone had success with fixing this issue ?

[HagssFIN]

Yeah I have not heard about Hyperbit for a long time.

Their last activity in social media was in January 2018.

I guess it could be that Hyperbit is not an operational company anymore. 

Brett was really pleased with my review/guide documentation, I let them use that as material for an official document
and he promised that I could get a free BW-L21 unit as return.
This was back in October 2017. I have not received that unit.
Oh well, I guess it is time to move on.

BW.com has opened their own webshop and will most likely start selling their hardware directly to customers.

[RoosterVT]

Hello,
Be sure to update the password while in the CLI. Also, update the passwd in conf.default file.

Running four of them I picked up. Updated to 2.60 without an issue. Even noticed the rejected rate moves around as well. My A4+ pop up with rejected packets from time to time.

Regards,

[apax]

I cant get a reply from the company CEO in weeks, but I still talk with Brett and some of the staff several times a week.

Today I got the new firmware.
It doesn't solve the issue with the December batch, and I don't have the changelog so I can't really tell what's new about it. It did solve a issue with one of my miners that was "half-bricked".

Has far as I know, BW already has a fix for the issue with the December batch but hyperbit themselves are still waiting for BW to fix their own miners.
They don't know when that's going to happen... but at least the reply from Brett has changed from "no idea" to "soon"

They stoped advertising and selling because all miners BW built since December had the same unknown issue so they couldn't put them on the market.
I believe they're so full with emails that decided to go radio silent till they have the answer everyone wants to hear. But this is just my opinion (very positive)

[apax]

I decided to try the BW shop you mentioned before and they don't sell the L21, just a PSU, an ethereum rig and case. No mention to L21 in terms of price or availability

[Seph213]

I decided to try the BW shop you mentioned before and they don't sell the L21, just a PSU, an ethereum rig and case. No mention to L21 in terms of price or availability

You actually want to buy another L21 ? With the issues it gives and difficulty being what it is now i don't see how mining ltc is profitable , better off buying the coins directly specially since its so low these days .

At this rate we'll be making .5 ltc a month per miner very soon .

[Goool]

BITMAIN killed this little company .. 

[HagssFIN]

BITMAIN killed this little company ..  

What is so funny about BITMAIN killing other companies that  makes you grin?
It would be bad if they had a total monopoly instead of the big market share that they have now.

BW.com is still a operational company, so your claim is false.

[apax]

You actually want to buy another L21 ? With the issues it gives and difficulty being what it is now i don't see how mining ltc is profitable , better off buying the coins directly specially since its so low these days .

At this rate we'll be making .5 ltc a month per miner very soon .

I don't want to buy, I have to many already 
I was just checking that information.

They have released a new firmware btw. It solves nothing...

[Seph213]

How would i go about updating ? Any new features on that update ?

[HagssFIN]

How would i go about updating ? Any new features on that update ?

Please see my guide (chapter 11), I have posted how to do the firmware upgrade process.

[Seph213]

[/quote]

Please see my guide (chapter 11), I have posted how to do the firmware upgrade process.


[/quote]

I did look at it but it says version 1.8 . I'm on 2.6 already so i'm assuming pasting what u wrote would not be an update ? am i wrong ?

thats why i asked him how he did it .

[HagssFIN]

I did look at it but it says version 1.8 . I'm on 2.6 already so i'm assuming pasting what u wrote would not be an update ? am i wrong ?

Yeah in that case it would actually be an older firmware version.

The same upgrade instructions apply, but you would need to ask if Hyperbit or BW.com has a newer firmware version available than the version 1.8.
EDIT:

Every upgrade they have comes with different instructions. This last one requires to download the firmware file to my computer, have sshpass and gnu parallel installed on my computer and run a script that will copy the files to the asic...

I'm still waiting on the official release with the changeling, but so far I cant notice anything.

Okay, thanks for the information.
I stand corrected.

I wonder why they are changing the process with different firmware upgrade versions.

[apax]

Every upgrade they have comes with different instructions. This last one requires to download the firmware file to my computer, have sshpass and gnu parallel installed on my computer and run a script that will copy the files to the asic...

I'm still waiting on the official release with the changeling, but so far I cant notice anything.

[HagssFIN]

Every upgrade they have comes with different instructions. This last one requires to download the firmware file to my computer, have sshpass and gnu parallel installed on my computer and run a script that will copy the files to the asic...

I'm still waiting on the official release with the changeling, but so far I cant notice anything.

Okay, thanks for the information.
I stand corrected.

I wonder why they are changing the process with different firmware upgrade versions.

[Goool]

Hassfin I know you got a miner from them for free and in exchange you did a review.
When a company comes out with a miner and asks more than $3000 / miner and later on is not adjusting their price the result is to shut down.

Don't forget that they got preorders they build miners and then they put them to mine for them. Nice !! mining with the clients' money !
At the end when they got many many complains they started to ship.

Today they are out of the game!

Even if they come out with something new no one will trust them again ! They can get a loan if they want not to mine with preorder money.
Don't forget how bitmain started ! They had everything in stock ready to go ! Good old times 

[jstefanop]

BITMAIN killed this little company .. 

Definitely not dead, I’ll have something quite interesting in a few weeks