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How to Make Gridseed Blade Mining Rig! [Pre-Built CGMiner]

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For this month’s Rig of the Month, check out the latest ASIC Scrypt miner, Gridseed Blade Mining Rig!

Based on 80 Gridseed chips, Gridseed Blades are ASIC Scrypt miners capable of 5.6Mh/s at only 100 watts of power.  These currently (as of April 30th 2014) cost around $1500-1600 with ROI of around 6 months at $15/day. (You can use CoinWarz.com to see profit at the moment.)

In other words, these are the best rigs to use to mine Scrypt coins such as Litecoins and Dogecoins “right now”.  My graphic card rigs are actually losing money at this point, I am barely breaking even or losing money.  Unless you have free or really cheap electricity, graphic card rigs are really starting to lose its merits (but this may change if coins like Vertcoins start going up.

Gridseed Blades use the same chips as regular Gridseeds, except you have 40-chips per blade instead of just 5-chips per Gridseed unit.  I find the new Gridseed Blades much more efficient, bring higher ROI, and takes less than 20-minutes to setup.  I hope the original Gridseeds die a horrible death as they are not efficient and take a long time to setup or diagnose faulty units.  Around 20-30% of my original Gridseeds have died on me, I am so sad.

Of course, there’s also many new ASIC Scrypt miners being designed at the moment, ready to be released near end of May 2014, so I would not place all your bets on Gridseed Blades just yet, but let me stop rambling and show you how to make a Gridseed Blade Mining Rig in about 20 minutes.

Parts List

Gridseed Blades – I got my blades from ZoomHash.com and Hash-Master.com.  Both have pretty good prices and you should be able to negotiate a better price than listed if you are ordering in bulk.

Raspberry Pi and Case– You can probably run at least 8 GridSeed Blades per Raspberry Pi.

Class 10 SD Card– Get at least Class 10 SD Card, I found cheaper SD cards can die suddenly and they go corrupt easily, also makes writing images a breeze due to faster speeds.

12V Adapter – Get 2 12V adapters per Gridseed Blade.  Each of these provide up to 84 watts of power and each blade of the GridSeed Blade unit takes 50 watts.

Mini USB cable – You will need 2 mini USB cables per Gridseed Blade unit.

1 Micro-USB power adapter – You probably have one of these laying around for your smartphone, if you don’t, just get one on Amazon for cheap.

USB Hub – You can get any type of USB hub, just make sure they are powered ones, I used these, which work well.

Step 1. First, connect the 12V adapters to your Gridseed Blades, there should be 2 adapters per Gridseed Blade unit.

Step 2. Connect mini-USB cables from your Gridseed Blades to your USB Hub.  (You can also just connect directly to Raspberry Pi for initial testing then later use the USB Hub to connect all of your Blades.)

Step 3. Connect micro-USB power adapter and ethernet cable to your Raspberry Pi.

Once everything is connected, don’t power on anything yet but should look something like this:

howto-make-gridseed-blade-mining-rig-1

Step 4. Next, download the HighOnCoins Gridseed Blade image and flash to your SD card using Win32DiskImager.   (You can also use DD with Linux/Mac but that’s outside the scope of this tutorial, just Google it.)

Download HighOnCoins Gridseed image with Pre-built CGminer

Download Win32DiskImager

howto-make-gridseed-blade-mining-rig-2

Step 5. Put the new SD card with HighOnCoins Gridseed Blade image into your Raspberry Pi and turn it on by connecting a micro-USB cable to it.

You can connect to the Raspberry Pi by connecting a DVI cable to a monitor and a keyboard via USB.  OR my preferred method is to connect an ethernet cable to your router then remotely SSH (using Putty or terminal), you can check for the IP address by checking your router’s LAN status.

Connect to Raspberry Pi using the following credentials:

id: root
password: raspberry

*Note – I used root user for Raspberry Pi as the USB-based Gridseeds require a lot of root access and it’s just pain in the butt to enter your password everytime you use sudo.

howto-make-gridseed-blade-mining-rig-3

Step 6. Once connected, you can type “nano cgminer/cgminer.conf” to edit the cgminer configuration files.  There you will be able to change the pool info to yours.  Save when done.

howto-make-gridseed-blade-mining-rig-4

howto-make-gridseed-blade-mining-rig-5

Step 7. To start the cgminer, simply type, “sh test.sh”.  If you see “FAILED!”, it means it’s successful. (Sorry I forgot to edit that part while writing the script.)  This will run cgminer in the background.

Step 8. To actually see cgminer running, type “cgm”.  To get out of it, press Ctrl + a + d.

howto-make-gridseed-blade-mining-rig-6

Step 9. Once you get everything working great, you can enable auto-start script, which will start cgminer automatically upon boot, power-failure, lock-up, etc…etc…

Type “nano /etc/cron.d/saupdate” and remove the “#” from the first line and save.

Once that’s done, cron job will automatically check every minute for cgminer and start it if its not running.

I’ve also enabled the watchdog timer on the Raspberry Pi so your Pi will restart upon any lock-ups, which was crucial to getting my new rig running 24/7.

I found that the Gridseed Blades run best at 838Mhz but you can try running them higher with a big fan blowing to your blades to cool them more.

howto-make-gridseed-blade-mining-rig-7

MANDATORY UPDATE April 30th 2014: There’s a way to prevent freezing Raspberry Pi for good, do:

sudo nano /boot/cmdline.txt

Then add the line at the end of the line (do not make a new line!!):

slub_debug=FP

After that reboot by typing:

sudo reboot

This prevented most of reboots on the Raspberry Pi so you should get more hashing power!

Q&A

Q: What is the ROI on this Gridseed Blades?
A: ROI on Gridseed Blade is around 6 months at the moment.  But with introduction of Zeus Scrypt miners at the end of May 2014, you may be better off waiting for that.  If you must start mining “right now”, Gridseed Blades are the way to go.  I would definitely be cautious about your investment right now as things change quickly around cryptocurrency world.

Q: Is it worth investing in mining rigs “right now”?
A: Well, if you have a good amount of investment, mining rigs are still probably the way to go but if you don’t, it may just be better to buy the coins instead of mining.   That’s just honest truth I can tell you.  Of course, mining may mean more exponential profits but at the same time, new ASIC Scrypt miners are being introduced at least once a month.  That means whatever you buy today may be worth only 50% for every month you have it.  All of these complexities are also crippled by the fact that cryptocurrency has dropped over 50% in last couple months.

Now, if coins do regain their value in the next few weeks (or even months), miners who invested now will surely benefit more than just buying coins.  But if that’s not the case, you may end up mining much less coins than buying them straight with fiat cash.

That should do it!

Credits

I compiled Cgminer by JMordica which is specifically modified for Gridseed blades. If you know how to compile stuff, you can grab the source code and compile it yourself.

Like my tutorial? You can send me coins!
LTC: LVvcUvmkXGnDGzEod2zVXfwb7b3C76fD4L
DOGE: D6f3F8ohqGq9dpouS66mkNLeSFpt4RtT6h


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79 thoughts on “How to Make Gridseed Blade Mining Rig! [Pre-Built CGMiner]

  1. Cy

    That is so cool. I’m going to have give this a shot. Sorry to hear bout the 20-30% loss on the gridseeds.

    Reply
  2. Mo Volans

    Hi there. This is working great for me with 3 blades… very stable. Only issue is that I am getting quite a few hardware errors. Is this normal… seems to be one blade in particular.

    What do you think?

    (5s):17.10M (avg):17.02Mh/s | A:1755648 R:9216 HW:65 WU:27.3/m
    ST: 1 SS: 0 NB: 287 LW: 24525 GF: 0 RF: 0
    Connected to eu.wafflepool.com diff 512 with stratum as user 1ErY8vqx4fo1LLvx5zArDsZdQAbNSz3Q6x
    Block: d8a1e777… Diff:7.09K Started: [17:58:16] Best share: 12.8M
    ——————————————————————————–
    [P]ool management [S]ettings [D]isplay options [Q]uit
    GSD 0: 48DC736C3030 838 MHz | 2.839M/2.839Mh/s | A:284160 R:1024 HW: 8 WU: 4.4/m
    GSD 1: 48ED73613135 838 MHz | 2.839M/2.839Mh/s | A:305664 R:2560 HW: 7 WU: 4.8/m
    GSD 2: 48D576633137 838 MHz | 2.840M/2.836Mh/s | A:306688 R:1024 HW:13 WU: 4.8/m
    GSD 3: 48F0876B3030 838 MHz | 2.839M/2.836Mh/s | A:276480 R:2048 HW:23 WU: 4.3/m
    GSD 4: 48F2825E3135 838 MHz | 2.839M/2.839Mh/s | A:278528 R:1536 HW: 9 WU: 4.3/m
    GSD 5: 48F37F6A3135 838 MHz | 2.839M/2.839Mh/s | A:305664 R:1024 HW: 5 WU: 4.7/m

    Reply
    1. Max Lee Post author

      They usually do but it’s gonna make you lose money any downtime you have if you do need to return for warranty. One of my blades just died right now, AGH. Cannot believe it.

      Reply
      1. Matt

        They got back to me and said that there is a 30 day warranty. Yes your going to lose money sending it back in for warranty, but if it does’t work, what else are you supposed to do?

        My GPU is still turning a profit. For every $50 I spend in electricity I make $150 in income so $100 profit. At .$.10 kwh Dunno how much your power costs are but I can build a 5MH rig(s) for this price or less.

        I almost did this today, but if yours is dead, that raises a serious question. How long have you had it? Especially since your other stand alone ones died. If its the same chips… I don’t see this as real awesome.

        Did you even make your money back on the other ones that died before they died?

        Reply
        1. Max Lee Post author

          Actually it started back up I just had to use another USB port. Well at the least I think we’ve hit rock bottom last month by June we may see an uptrend.

          Reply
  3. Bart

    ROI on this Gridseed Blades is never!
    You didn’t calculate the Difficulty Increment.
    If u use the Gridseed miner with 5200 kh/s at a price at 1500 dollars. and take in mind that the difficulty rises with 2% every 3 days (with is very low) you will see that you will never make ROI.
    The Gridseed is a nice toy but is way overpriced to be a good investment. Also take in account when the new A2 ASIC miner wil be released the difficulty will rise even faster.

    Reply
    1. Matt

      Obviously ROI is not “never” if you run it long enough your going to get your money back. Besides there is a LOT of scrypt coins. I don’t even mine Litecoin, I mine a bunch of different ones and convert them to bitcoin. Im GPU mining and Im turning a profit, you would turn a profit with this, but there is of course an ideal and not ideal way to do it. Ive watched and difficulty of many coins goes up and then back down and then back up and then back down. You just have to play the right coins at the right time. There are some great pools for this.

      Anyway my concern would be whether or not these things survive long enough to get to the ROI point, the OPs other ones died at a 20%-30% rate, and one of these have already died. So I don’t see these as being any better. The only problem with these is when a blade dies it takes down 40 chips at once, not just a few.

      Reply
      1. Bart

        If you use a multipool like clever mining you automatically mine the most valuable coin
        We will see that the average btc/day per MH/S is 0,00509 is for the last 30 days
        So you will be making  0,026468 Bitcoin per day. Lets say that bitcoin is worth 500 dollars ( its now 460 dollars). The miner cost is 1500 dollars so lets say 3 bitcoins. So this will be 114 days when you have ROI without taking in account power usage.
        if we now look at Cleverming last 24 Hours average they only mine 0,00323 BTC/day per MH/s so now you only make 0,016796 so the ROI is 178 days.
        You must take in account the the BTC earned per MH/s will go down as more and more asic are released. This is difficulty increment and if we take in account 2% with is very low you will never see ROI. You will earn les btc/day per MH/S to a point it wil cost more on electricity.
        Even if you have Free electricity you will not see ROI within 4 years. If you take in account electricity in account at 0,10 dollar the blade uses 140 watts
        you will see that in 577 days it will cost more on electricity than to run it. At this point your still loses 295 dollars.

        Coin hopping won’t help because all the other miners are doing the same thing. Only in the future not with a 5,2 MHs miner but with 70MHs miners. So if there profabel the difficulty will also skyrocket.
        Just look at bitcoin how many SHA-256 coins are left?

        I think we have to wait on the next good algorithm so we can start and go back with gpu mining.

        Reply
  4. Bart

    The only way to make a ROI is that the ASIC miner ships now and has a good Dollar/Mhs ratio
    The Gridseed blade has a 288 dollars/MHs ratio.
    Zeus miner has 139 dollars/MHs ratio.
    Viper 90Mh/s has a 103 dollars/MHs ratio.

    If you want to invest in a Asic miner they have to be in stock. Because a 30 day delay can make the difference to ever see your investment back again.

    Reply
  5. Colin

    Hey does anyone else experience either CGminer or the raspberry pi restarting on a regular basis? Sometime it will go solid for 2/3 hours then it will reset. Other times it will only go for an hour. It’s not a major issue as it restarts so quickly. Though when trying to mine as consistent as possible it is driving down my avg hash a little. I am using the same SD card as this post and followed same instructions. I would love to continue it on the pi. Though I managed to get it consistently mining on MultiMiner for days without interrupts. Any advice to make it more stable would be great!

    Thanks

    Reply
    1. Max Lee Post author

      Did you do the last part?

      MANDATORY UPDATE April 30th 2014: There’s a way to prevent freezing Raspberry Pi for good, do:

      sudo nano /boot/cmdline.txt

      Then add the line at the end of the line (do not make a new line!!):

      slub_debug=FP

      After that reboot by typing:

      sudo reboot

      This prevented most of reboots on the Raspberry Pi so you should get more hashing power!

      Reply
  6. Mark

    Great guide. It was working great but now 1 of the blades is showing 0 accepted shares. Any clue what is the issue?

    Reply
    1. Max Lee Post author

      Hmmm try unplugging the USB and power then put it back on and power on, if all else fails, that could be a faulty module but I hope not.

      Reply
  7. Steve

    can you please post how the updated line looks like when you say add to same line not new line

    thanks

    Reply
    1. Max Lee Post author

      Like this: \dwc_otg.lpm_enable=0 console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4 elevator=deadline rootwait slub_debug=FP

      Reply
  8. Bart

    News for the gridded blade its now sold for 960 dollars at https://minereu.com

    Its still way overpriced over the competition
    The Gridseed blade has a 185 dollars/MHs ratio. (is shipping)
    A2 Mine has 167 dollars/MHs (is shipping)
    Zeus miner has 139 dollars/MHs ratio.
    Viper 90Mh/s has a 103 dollars/MHs ratio.

    Reply
    1. Max Lee Post author

      Thanks for the update, def. gonna have to go with Zeus at the moment, that seems like the best deal if they can keep their May 31st promise.

      Reply
  9. taylor

    my raspi keeps rebooting. miner works but every 10 min or so the whole thing reboots. I have done the mandatory update. any suggestions??

    Reply
      1. taylor

        838. The reboots even if I am logged in as root but not mining. Not really sure what to think the cause is

        Reply
  10. Dan

    Having issue with Gridseed Blade only accepting shares on 1 device, not both. Both devices report hash, but only the first device (GSD 0) is getting any accepted/rejected.

    Reply
  11. Paul

    My Raspberry automatically reboots, as it should after a problem, but the Wifi doesn’t reconnect and so it can’t resume mining. If I power off and then power on, it will automatically reconnect, but not when it restarts automatically. Any ideas? Great tutorial, by the way.

    Reply
      1. Paul

        Thanks. I may/may not have solved that one, but I am also getting this error which stops mining every few hours:

        GSD 0 SendWork usb write err:(-7) LIBUSB_ERROR_TIMEOUT
        GSD 1 SendWork usb write err:(-7) LIBUSB_ERROR_TIMEOUT
        work prepare failed, exiting mining thread 0
        work prepare failed, exiting mining thread 1

        I’m off to research this one, but by the time I’ve learned about my Raspberry Pi and Linux I figure someone might have an answer.

        Many thanks.

        Reply
  12. Wayne

    Another awesome tutorial. (I think) I have done everything but obviously I haven’t done something correctly. When I type in sh test.sh I do see the Failed. I then type in cgm and it is coming back with There is no screen to be attached matching cgm.

    I have started up cgminer by typing in ./cgminer and filling in the requirements and it is working (a little better speeds than my other devices).

    Any ideas why cgm is not displaying a screen?

    Thanks!

    Reply
    1. Wayne

      It looks like I found the issue. I only put in two pools and had an extra comma. Problem solved.

      Thanks

      Reply
      1. Max Lee Post author

        Nice good job, “FAILED” is actually normal, that means the process worked, it’s a script that I never fixed but “FAILED” should be understood as “SUCCESS” instead.

        Reply
  13. David DeSantis

    Max, thank you so much for this tutorial. I got my raspberry pi and gridseed setup running, and added the last update, BUT my problem is that both gridseeds will be hashing away just fine for say 30 minutes, then cg miner will be reporting this:

    [2014-5-20 15:25:15] gridseed detect (1:6) failed to initialize (incorrect device?)
    [2014-5-20 15:25:15] gridseed detect (1:5) failed to initialize (incorrect device?)
    [2014-5-20 15:25:15] gridseed detect (1:6) failed to initialize (incorrect device?)

    This is a problem as I can only mine for a half hour at a time..

    Do you have any pointers here?

    Thanks
    Dave

    Reply
  14. Jordan

    Thanks for posting this, it’s a huge help! I just recently got my Gridseed blade up and running, but one of the cards is receiving about 3-4% HW errors at 850mhz, while the card has less than 1%. Is this an issue or should I just keep going?

    Reply
  15. Onur

    hi!

    did you have any chance to take a look at how to reduce the sound?

    I have looked in to putting a 120mm to 92mm fan adapter and using a silent 120mm fan like the Cooler Master SickleFlow X …..

    Any ideas, thanks in advance!

    Reply
    1. Max Lee Post author

      Well, I have not try changing the fan out but you may be able to do it, I just put mine in a small room away from my bedrooms.

      Reply
    1. Max Lee Post author

      to disable mining, just comment out the auto-script with “#” in /etc/cron.d/saupdate

      Then do:
      cgm

      and hit “q”.

      Reply
  16. yoann

    Hey, thanks for ur fantastic tutorial ! it works for me but not with “sh test.sh” ….i have to go to cgminer folder and launch cgminer in command line. Someone had this problem ? when i do sh test.sh i write “failed” but after when i enter cgm it says no screens are available….

    thx by advance for ur help

    Reply
  17. bjh

    there is´nt any wifi config on the desktop and i need to make it work with wifi as i have to move my rig to another room. is there a high on coins cgminer to raspberry or how do i make your pre built work with wifi?

    Reply
  18. Armando

    Hi zedomax, when I type “cgm” the raspberry pi says”There is no screen to be attached matching cgm.”
    What’s the problem? I fallowed your guide. Please help me

    Reply
    1. Max Lee Post author

      Check your config file, you must have added some extra characters. Re-copy the default config file and start over if you cannot find the error.

      Also you can do:
      “sh mine.sh” to run cgm in the foreground, that should give you an error if there’s any.

      Reply
      1. Armando

        Zedomax, always the same problems, also after i re-copied the default conf file. And also after i wrote sh mine.sh the raspberry shows “JSON decode of file ‘cgminer.conf’ failed ‘]’ expected near ‘{‘

        what’s the problem? What i’ve to do?

        Reply
  19. LoneWolf3574

    I’ve got a Gridseed Blade and 2x Zeusminer Blizzards, I don’t suppose there’s a way to get the Blizzards to run at the same time as the Blade? I’m noob to Linux as well, so…

    Reply
    1. teky

      i am also having similar issue have to reboot via putty sometime manually and it automatically worked i havent altered anything except pool settings. however now i have another issue my one miner disappeared and not showing in the cgm though both green & red light is blining as normal

      Reply
  20. Doeyourthing

    Hi Max Lee,

    Where and when I need to put this line?

    MANDATORY UPDATE April 30th 2014: There’s a way to prevent freezing Raspberry Pi for good, do:

    sudo nano /boot/cmdline.txt

    Then add the line at the end of the line (do not make a new line!!):

    slub_debug=FP

    After that reboot by typing:

    sudo reboot

    Before I start cgminer with “sh test.sh”?

    Thanks.

    Is there some updates for the future
    like cgminer 4.x.x website: https://github.com/ckolivas/cgminer

    Reply
  21. Freaven

    Hi,
    thank you for the tutorial, I had a blade that tour, I do not encounter any problem.
    Recently I added a second G-blade, cgminer bug sometimes and my two G-blade no longer works. I raise rPI manually

    Reply
    1. Freaven

      There is no solution ?
      For a week, I manually restart the two G-blade, all the 12 hours, I’ll post the error that gives me cgminer.

      Reply
      1. Freaven

        [2014-08-15 11:14:04] gridseed detect (1:9) failed to initialise (incorrect device?)
        [2014-08-15 11:14:16] Network diff set to 938
        [2014-08-15 11:14:16] Stratum from pool 0 detected new block
        [2014-08-15 11:14:34] Network diff set to 954
        [2014-08-15 11:14:34] Stratum from pool 0 detected new block
        [2014-08-15 11:14:34] gridseed detect (1:11) failed to initialise (incorrect device?)
        [2014-08-15 11:14:34] gridseed detect (1:10) failed to initialise (incorrect device?)
        [2014-08-15 11:14:34] gridseed detect (1:9) failed to initialise (incorrect device?)

        Reply
  22. Peter OD

    wow great tutorial – easy to follow especially for a novice. But can you tell me how to enable the CgMiner api-listen parameter? I wish to connect to my RPi using a windows based application (Awesome Miner) but it requires the API to be enabled. Thanks

    Reply
        1. jOSE

          Hello man, thanks for your great tutorials. Im now hasing away.. im very happy…

          Now i got this two blades running (gridseed blades) im mining litecoins… would they mine dark coins too?? from elitter.net > ? im mining litecoins there but can i also mine dark coins using the blades and the same image…? thanks

          Reply
  23. bones

    Hi, just looking for a little help please. I am used to miners but never used a pi before, im a windows guy.
    I wrote the image to a card, put it in the pi, connected a hdmi lead and I am getting a no input screen.
    I wanted to avoid putty as I never used it, but tried that, I got a new screen appear after opening putty, but it has no login, just somewhere to type, no writing. I tried to type and it would not let me…

    Kind of lost as to how to proceed, maybe i got a corrupt image when writing, I will try that tomorrow but would really appreciate any help you could offer

    Reply
    1. bones

      Just an update, no joy at all from that image…

      It will try to load something, but i have no ssh access, no screen display until i unplug hdmi and replug, no usb ports working so my keyboard will not type…

      I am now loading raspbian onto the pi and the mouse works and i have detected an ip whic hdid not show before.

      Just me who finds that img no use at all?

      Any pointers on what I could download and install to get that same software running would be helpfull .

      Enjoy your day.

      Reply
      1. kalohrin

        i had the exact same situation when i started with this guide about a month ago. after fiddling around with different images etc i found out that highoncoins image doesnt work straight away with raspberry pi b+ (i suppose you have this model). to get ethernet and usb ports working on highoncoins image you have to get the latest rasbian and write it to your sd card. when thats done open the sd card on your pc. you should see only one folder there. copy all the contets from the folder to your pc and write highoncoins image to the sd card and replace the folder contents with the rasbian ones. that did the trick for me.

        Reply
  24. dennis

    Hello, i use your cgminer config, work out verry good, but i have a problem with the raspberry or the cgminer i dont know.
    I have 3 gridseed g-blade.
    Then i use putty, and typ cgm, it will slow, that i have two screens to it and i need to type screen -r and like 2160 or 2161.
    Then i type in screen -r 2160 or 2161 it will show me 3 of the blades only, not all 6 blades.
    And 3 blades use higher dif, and 3 lower.
    I dont know if you understand how i mean my english is not that best…

    Reply
  25. onlyabill

    I tried putting your latest build on an SD card and the installer told me the card was not large enough. It was an 8 Gig card. The load was just short (by like 32k or so). I tried two different writers and it un-zipped fine. Thoughts?

    Thanks!

    Reply
  26. Krixx

    Hi everyone,

    very cool introduction into litecoins. I will setup a small rig for mining. Yesterday I got a raspberry 2 (1GB version) as a present. So my questions is, if the preconfigured cgminer files given in the link work on this system?

    Many greetings.

    Krixx

    Reply
  27. nick

    Hi

    Same as Krixx above, I imaged correctly onto the micro usb but Nothing happens when I turn on the pi. It’s a Raspberry Pi B 2.

    Thanks!

    Reply
  28. mark

    hiya great guide but the image you provided wont work on a raspberry pi 2 + 3 is there any chance you can have a look when you got some free time thanks

    mark

    Reply

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