Popular Post ZenRyder Posted December 21, 2019 Popular Post Share Posted December 21, 2019 If you have the 100v MSX with the oscillation problem, then this post might help you with the upgrade. This only affects the recent batch of MSuper Xs from eWheels with 1860 wh batteries. @Jason McNeil has been working with Gotway to provide new controllers and after the first batch was a bust, we have the replacements and are ready to try them out. First heads up is that the new controllers were sent with the wrong main connector (at least mine was). It has the smaller XT-60 connector which is not going to fit. The one that you currently have is most likely the XT-90 which is the heavier duty cousin. It's a significant difference as shown below. The XT-90 is on the left and the XT-60 is on the right. My recommendation is if you received a bad controller a few weeks ago (that apparently causes the wheel to catch fire), that board has the XT-90 connector. So you can heat up the wires on the connector end of the bad controller and remove the XT-90. Nobody should ever use those bad controllers now anyway, so you should be safe to re-purpose it. I'd recommend not trying to remove the wires that are soldered directly to the controller as you risk damaging the electronics. I'd also go with the XT-90 and not downgrade to the XT-60 since it's a more robust connector. We don't ever really want to downgrade, right? Also, keeping with the XT-90 instead of retrofitting to the XT-60 makes it possible to go back to the old controller in case you ever need to. My soldering is definitely not pro quality, but I also put on a heat shrink wrap after the picture above and then the bottom part of the connector slides up and covers those wires. Once you have replaced the connector with the XT-90, then you are ready to install the board. This is a handy cheat sheet to show you which wires go where: It's a little confusion because the documentation on the old board shows a 5V fan connection and the new board shows a 12V fan connection. Probably a typo. If my cheat sheet above helps, great. Otherwise you can use these Chinese docs: Old Board New Board The new board now needs to be tested. I gave it a quick spin in the dark, but should be able to put it through its paces tomorrow. I'm interested in feedback from anyone else that is in the process of upgrading the controller. If these tips help in any way, then I'm glad of that. 9 Quote Link to comment Share on other sites More sharing options...
meepmeepmayer Posted December 21, 2019 Share Posted December 21, 2019 7 hours ago, ZenRyder said: First heads up is that the new controllers were sent with the wrong main connector Of course they were 2 Quote Link to comment Share on other sites More sharing options...
Popular Post ZenRyder Posted December 25, 2019 Author Popular Post Share Posted December 25, 2019 Verdict? One thing to note is that you may need to reset your wheel settings. I used the EUC World app and all the settings appeared to be the same as I had them before. However, when I went to ride, I felt the harsh tilt back when approaching 15 mph. Along with the soft pedal settings the wheel first comes with. After connecting with the Gotway app and resetting each setting and re-calibrating the wheel, everything was back to normal with tilt back off. The new controller appears to be running very smooth. No issues. I've only been up to 24 mph, but so far looking real good. Need to go on a few longer rides and get some feedback from others who are upgrading their boards. Looking for a more detailed report from @Nick McCutcheon. But I heard he can ride seated now with no issues. Overall, I think we have a good board that can be trusted to correct the MSX issues. 6 Quote Link to comment Share on other sites More sharing options...
Popular Post Nick McCutcheon Posted December 25, 2019 Popular Post Share Posted December 25, 2019 I haven't been able to test at high speeds for long distances yet, but it seems to perform great with the new board. I have ridden up to 30mph seated, which was impossible even at low speeds before. I doubt there'll be any issues, and if there are I'll definitely post them here, but for the time being I'm going to assume my wheel's been fixed as well 6 Quote Link to comment Share on other sites More sharing options...
Popular Post meepmeepmayer Posted December 25, 2019 Popular Post Share Posted December 25, 2019 13 hours ago, ZenRyder said: One thing to note is that you may need to reset your wheel settings. I used the EUC World app and all the settings appeared to be the same as I had them before. However, when I went to ride, I felt the harsh tilt back when approaching 15 mph. Along with the soft pedal settings the wheel first comes with. After connecting with the Gotway app and resetting each setting and re-calibrating the wheel, everything was back to normal with tilt back off. Since the settings are saved on the board, no surprise that replacing the board gives you standard settings EUC World shows the old settings because you cannot read any settings from any Gotway wheel. Gotway's Bluetooth functionality is strictly one-way - you can send a command to set X to Y, and the wheel confirms it received the command by beeping twice. But you cannot know what the wheel is already set to, the functionality doesn't include reading anything (not even the wheel model). Apps can send commands to "a Gotway" and hope they are received, nothing else. Apps should just show no settings except those that literally just have been set. So everything you describe is exactly as expected. That's a good sign, I guess. 5 Quote Link to comment Share on other sites More sharing options...
Jason McNeil Posted December 26, 2019 Share Posted December 26, 2019 On 12/25/2019 at 12:54 AM, ZenRyder said: The new controller appears to be running very smooth. No issues. I've only been up to 24 mph, but so far looking real good. Need to go on a few longer rides and get some feedback from others who are upgrading their boards. Looking for a more detailed report from @Nick McCutcheon. But I heard he can ride seated now with no issues. Overall, I think we have a good board that can be trusted to correct the MSX issues. GW contact said the firmware Engineer had to make some changes to accommodate the altered weight distribution in the MSX with daughter battery packs. Apparently this had also impacted the AliExpress larger pack MSXs as well. They're actively working on producing the remaining 25x boards, which will be rolled out in the the next 1-2 weeks. 3 Quote Link to comment Share on other sites More sharing options...
ZenRyder Posted December 26, 2019 Author Share Posted December 26, 2019 2 hours ago, Jason McNeil said: GW contact said the firmware Engineer had to make some changes to accommodate the altered weight distribution in the MSX with daughter battery packs. Apparently this had also impacted the AliExpress larger pack MSXs as well. They're actively working on producing the remaining 25x boards, which will be rolled out in the the next 1-2 weeks. Interesting. I wondered about the added battery packs because they are both behind the center of gravity. The amount of weight is fairly substantial (what nearly 10 lbs?) total. I mean it looks to me like they just didn't account for it to make that much difference. But if the forward to backward work that the wheel had to do was changed enough, you could see why the firmware algorithm would be thrown off and cause the oscillation and wobble problems. Getting a fix within a month or two (even with the hiccups) is much appreciated. 3 Quote Link to comment Share on other sites More sharing options...
Popular Post Marty Backe Posted December 26, 2019 Popular Post Share Posted December 26, 2019 3 hours ago, Jason McNeil said: GW contact said the firmware Engineer had to make some changes to accommodate the altered weight distribution in the MSX with daughter battery packs. Apparently this had also impacted the AliExpress larger pack MSXs as well. They're actively working on producing the remaining 25x boards, which will be rolled out in the the next 1-2 weeks. Very interesting that the firmware needs to be adjusted due to a different battery weight distribution. I wonder if this is the real explanation? If you sit on any typical wheel, forward or aft, you are affecting the weight distribution of the wheel. Yet the riding characteristics don't change. I may be totally off base, but this explanation doesn't pass my smell test. But it's fixed which is the main thing. Good to know that everything is now working (thanks @ZenRyder & @Nick McCutcheon) and that this long ordeal is ending. 8 Quote Link to comment Share on other sites More sharing options...
ir_fuel Posted December 26, 2019 Share Posted December 26, 2019 8 minutes ago, Marty Backe said: I may be totally off base, but this explanation doesn't pass my smell test. But it's fixed which is the main thing. Same. I don't understand it. 2 Quote Link to comment Share on other sites More sharing options...
Nick McCutcheon Posted December 27, 2019 Share Posted December 27, 2019 10 hours ago, ir_fuel said: Same. I don't understand it. I don't believe it either, adding an extra 800wh pack to a 1600wh monster should produce the same results if true, but I didn't see any noticable ride difference after doing that to my (now sold) monster. 2 Quote Link to comment Share on other sites More sharing options...
ZenRyder Posted December 27, 2019 Author Share Posted December 27, 2019 49 minutes ago, Nick McCutcheon said: I don't believe it either, adding an extra 800wh pack to a 1600wh monster should produce the same results if true, but I didn't see any noticable ride difference after doing that to my (now sold) monster. Is the battery pack the same on the monster? With the top pack's weight evenly distributed and the add-on packs only added onto the rear behind the center of gravity? Just wondering if it's the same battery layout because there is so much room in the monster case. Quote Link to comment Share on other sites More sharing options...
Marty Backe Posted December 27, 2019 Share Posted December 27, 2019 29 minutes ago, ZenRyder said: Is the battery pack the same on the monster? With the top pack's weight evenly distributed and the add-on packs only added onto the rear behind the center of gravity? Just wondering if it's the same battery layout because there is so much room in the monster case. The Monster has two top center packs plus one behind the axle which totally throws off the balance of the wheel. The 2400wh Monster has to be the most unbalanced wheel in existence. Yet when Nick converted his 1600wh Monster to the 2400wh version, no changes to the firmware was needed. 3 Quote Link to comment Share on other sites More sharing options...
Planemo Posted December 27, 2019 Share Posted December 27, 2019 Agreed. Further, to my knowledge, none of the MSX battery variants have different firmwares either. Sounds like utter nonsense to me and I am amazed this came from GW themselves. 2 Quote Link to comment Share on other sites More sharing options...
meepmeepmayer Posted December 27, 2019 Share Posted December 27, 2019 (edited) 16 hours ago, Marty Backe said: The Monster has two top center packs plus one behind the axle which totally throws off the balance of the wheel. The 2400wh Monster has to be the most unbalanced wheel in existence. Doesn't the Monster have vertical packs, where the board is in the space where another vertical pack would fit? So any battery pack would always be off-center? And the imbalance is from the lack of pack in the 4th space where the board sits? Are you talking about some mod (or the ACM/msuper where the packs lie horizontally and are centered above the axle)? Wondering if I'm missing something (new internal layout?) or you mixed up something. Edited December 27, 2019 by meepmeepmayer 1 Quote Link to comment Share on other sites More sharing options...
Marty Backe Posted December 28, 2019 Share Posted December 28, 2019 3 hours ago, meepmeepmayer said: Doesn't the Monster have vertical packs, where the board is in the space where another vertical pack would fit? So any battery pack would always be off-center? And the imbalance is from the lack of pack in the 4th space where the board sits? Are you talking about some mod (or the ACM/msuper where the packs lie horizontally and are centered above the axle)? Wondering if I'm missing something (new internal layout?) or you mixed up something. Yeah, you're correct of course. Not sure what I was thinking. I was just working in my ACM, so maybe that's my excuse But I'm still right in that the Monster is massively unbalanced. Quote Link to comment Share on other sites More sharing options...
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