Snowblower pretty much unusable after latest firmware update

For months snowblower has worked almost flawlessly, even when I’m out of the country. No, it’s a disatser.

  • Constant auger overcurrent issues. Almost always at the end of a “line” on the plan when it goes to turn around. If you pause, go into remote control, drive 1 inch and then clear the error, it goes starts up no problem and does the next long line. Stops at the end of that and you have to repeart the process 50x. There is noting blocking chute/auger.
  • Repeated “module diconnected” / “module changed” errors. Again, the remedy is to pause, go into remote control, drive a few inches, then it thinks the snowblower has reconnected. Have triple-checked blower seating, lock tabs, cable, etc. Even removed and rettached a couple of times to be sure.
  • Seems to go off course by a foot or so whereas previous versions didn’t. When you do, it will stop. But return it the 1’ into the area and watch out - it will completely take you out of the work program and reeset. You of course could restart the program at wheatever percentage was previously completed - but how do you know what percentage it was at? It immediately dumps you back out to main app screen.
  • Gets to point in workplan where it needs to recharge. Instead of returning to dock, it just sits there. You need to open app, swipe cancel charge, then go into the remote controller and click recharge. It then dutifully returns to the dock.
  • If it’s not the left camera that says it’s disconnected, then it’s the front camera that says it’s disconnected.

Have shutdown completely. Rebooted. Etc. etc. Contacted support, they said they don’t see the diconnects/auger issue in the logs. I’m not kidding when say we’re up to 100+ stops over the past 24 hours. Have just been watching security cams waiting for it to stop, then fix it in app, then wait 1-2 minutes for the next errant stoppage to repeat the process over and over.

In the process of writing this, it’s stopped 6 times. Most recently for “module changed”

It sounds like you have an M25 connector issue to me. What is your ticket number? The forum admin can take a look and help escalate this.

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I’ve been having the same issues and in the meantime I’m working on designing a little relief grommet that can house the module plug wiring cable and slot into the plastic cover. Aiming for a very snug fit on the cable to avoid the M25 connector getting pulled around too much during module movement. I do not have the firmware update, I think it’s pure coincidence that it may have started after the update for you. We’ll see if I have any success with preventing most of the disconnects

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To be clear, this is the space i’m looking to add the grommet:

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Really sorry to hear about all the issues you’re running into—this definitely sounds frustrating, especially given how well the snow blower was working for you before.

As Bryan mentioned, the repeated module disconnected alerts may be related to the M25 connector, which we’re actively investigating.

For the other issues you mentioned—such as the frequent auger overcurrent errors, unexpected stops at the end of lines, charging not initiating automatically, and camera disconnect alerts—our support and engineering teams are continuing to look into these. We’re still working to identify the root cause and determine the best solution.

We really appreciate your patience while we dig deeper, and thank you for taking the time to share such detailed feedback—it’s very helpful for our investigation. We’ll provide updates as soon as we have more clarity.

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I’m seeing some of these issues after the firmware update, but thankfully no where near the frequency described by “rrr”. Like “rrr”, my snowblower functioned pretty much perfectly all of last season and this season until the latest firmware update. Immediately after the update, I began noticing:

(1) Occasional left or front camera disconnect alerts, which at least for me, is brand new since the update. Additionally, the cameras on the snowblower now produce a very dark picture when compared against those on the core. A restart eliminates this for a little while, but it always returns.

(2) The video stream from all cameras (in SmartVision) sometimes noticeably lags now and cameras are often out of sync with each other (ie; the front camera will show movement several seconds after the core has stopped whereas the rear camera shows no movement immediately upon stopping and the other two cameras are often somewhere in between. Those symptoms are NOT consistent to each camera though, meaning they are not consistently out of sync by the same amount. Sometimes, even sound is out of sync (ie; motor noise continues in the app view for several seconds after the unit has stopped). Restarting the Yarbo core and/or the app itself seems to eliminate these issues for a while. They occur randomly, but seem more frequent if I am using SmartVision for a prolonged period (which always worked perfectly before the last update).

(3) Intermittent ability to properly dock on the charger. Even though the pad is completely clean of snow/ice and in great condition, the core sometimes gives up trying to dock/charge after several minutes of not finding the correct ‘spot’. Again, a core restart appears to alleviate this.

(4) Even though no loss of any signal (including GPS) is indicated, the core will often pause for up to 20 seconds in the middle of a run before continuing. During this time, the auger stops. Sometimes the auger stops at random other times as well. No pattern to this that I can determine yet. It is an intermittent occurrence, but it never happened before.

(5) Never had an overcurrent alert before but they happen with some regularity now even though there is no obstruction, clog or other obvious reason for them. Mine only take place when the core is stopped/paused (for any reason, including a manual command to pause) and then restarted. To me, it almost appears as if the extremely cold weather requires far more current than usual to start the motor, and that generates the alert. However, weather temps are within the Yarbo’s specified operating range.

(6) As several users have noted elsewhere, battery capacity has definitely been noticeably reduced after the update, but I suspect that is coincidence and actually the result of unseasonably cold temps lately. I’m keeping an eye on this and when it (hopefully) warms up a bit, I’ll know for sure.

For the most part, all symptoms above are more annoyances than critical, “work stoppages”, and I can live with them until the next firmware update (hopefully) fixes them. For me, the most critical is the lagging/out of sync video streams in SmartVision because I use that quite frequently now to manually clear large amounts of snow immediately adjacent to vehicles (which Yarbo has done a great job at avoiding even when they are clearly within its work zone).

I don’t know if this was a pre-existing issue or not because I did not previously use SmartVision to the extend that I now do. However, every time the controller functionality is chosen while in SmartVision, the upper half of the screen (which typically displays the front and year cameras) gets extremely dim. So dim you cannot really see the video unless you are in a dimly lit room. This obviously makes it very difficult to perform remote controlled snowblowing.

Hope this info helps YARBO analyze and resolve the issues. I can make my system available any time Yarbo would like to remote into it and collect data.

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Good summary. I’ve definitely seen the smart vision issues you’re describing.

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Same. It’s unwatchable now.

After updating to the newest firmware…

I have also seen the periodic out of sync video issue. For me, closing smart vision and restarting it seems to resolve it.

I’ve also been seeing where Yarbo will just sort of pause while in the middle of a work plan. It seems to me the auger’s power is cut, then Yarbo stops driving while it waits for the auger to spin back up. I haven’t found any pattern to this yet. Seems sporatic and random.

My blower also started showing module disconnect and module connect messages after yesterday. In any case, I also have a mechanical motor problem, so I assumed those surge peaks could be causing this issue as well.

I already checked the connector and it looks fine. On the other hand, because of the motor problem, I had to disconnect and reconnect the connector multiple times.

Anyway, if your motor makes odd noises and the auger current draw fluctuates a lot and the spinning speed varies, you may have the same problem as I do. In my case, the blower problem is that the motor shaft drifts in its bearing. This causes the belt to become misaligned and also magnets to hit the stator. That leads to all kinds of problems, such as overcurrent issues, “waiting auger speed” errors, and most likely also those connect and disconnect problems.

Those other camera issues are most likely caused by a different problem. I’ve done quite a bit of network debugging, and it looks like there’s a bug that can cause the HaLow link to become saturated sometimes — especially if you have multiple devices or if you open and close Smart Vision quickly. I’m not sure whether it opens multiple video feeds from Yarbo or what exactly it does. Anyway, rebooting Yarbo fixes it each time if mobile app restart wont. Smart Vision is still in beta, and for good reason.

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My m25 connector also “looks fine” and has no perceptable play, but sure enough when I have disconnects (or endless waiting for auger messages) that don’t recover on their own a gentle push of the cord towards the module plug would get everything back going again (or 9/10 times just adjusting the module height manually moves it enough to reconnect lol) . Additionally the disconnects are happening only when the module height is being adjusted - again supporting it being movement of the module cable causing the issue. This loose connection seems to be responsible for front camera outages/lag, module disconnects, and motor overcurrent errors (at least some of them, I also do have some motor issue maybe similar to yours, but you hear differences in running sounds when those crop up).

I’m currently testing a grommet (it’s about a 65-70A shore hardness material) for supporting the cord and preventing it from tugging on/moving the connector:

Doing a test run now but so far so good.

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The video seems lag seems to return to a watchable state when it’s on a sustained path that requires no module or core correction. Like the CPU gets freed up to resume camera load. So when I get to the end of a pass my video freezes and the core makes turns and as the bucket adjusts. Once it completes turns and adjustments and starts it seems to restore until it is need to makes moves again.

Sure sounds like you’re also just having the intermittent connection problems at the M25 connector when the module adjusts

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Ooooo good call.

It’s intentional. It waits for the chute to reach the correct position. It cuts the auger so it doesn’t spray any remnants in the wrong direction.

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Oh. Interesting. Thanks for explaining the rationale.

So like I said, there are differences. We just need to understand and rationalize them so we don’t mistakenly report them as defects or regressions.

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Update on my grommet design fix - let yarbo run my entire driveway plan and he completed it with zero front camera cutouts, overcurrent errors, module disconnects, etc. for the first time this week. There was quite a lot of packed/dense snow in his route too, so this was one of the more difficult clearings in the past few days. Seems to be working great so far.

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Congrats on the success today!

Please keep us posted as time goes on. Awesome idea!

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will do, I think the main root cause is a possible too short cable length for the module/M25 connector combined with the frigid temperatures making the wire shielding stiffer than normal. This is putting excess side-to-side force on the M25 connector as the module raises and lowers, enough to disconnect one or more of the pins even if the connection seems very solid. The grommet creates a pinch point to prevent movement on the inside of the connector “box” which has so far solved it. Interested to see what yarbo will do here. Worst case I’m willing to produce a handful of these for a small fee once I’ve had a bit more testing time to feel 100% confident in it.

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I’ll totally buy one from you once you’re confident in the design. Great work!

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