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[princec]

To be fair this is par for the course for phone software... generally badly written and laid upon a foundation of crap, and there are literally hundreds of OS variants to deal with. It's likely they literally have no idea why it doesn't work.

Cas

[karlh]

You may be right.  My expectations for software are generally high, but that may be because I worked in aerospace for almost 40 years, where the consequences of poorly written software may be fatal (see Boeing 737 MAX 8, among others).

[Richard230]

Are you on Android Karl? Mine will also keep spinning on Android never showing a firmware update is available. Same bike, same garage, same network, my iPhone shows the available firmware update. But everytime I attempt installation from the phone it reports an error right away. Updates from bike just seem to install but at the end nothing is updated. So far no luck.

The updating system works perfectly on my cheap Android phone for my 2018 S. It only takes a few seconds to check for a new firmware update - providing that it has connected with my bike and provided that my phone is receiving my wireless internet signal. However, some times it takes a couple of tries before the Zero app finally connects to the bike via Bluetooth.

[JaimeC]

Are you on Android Karl? Mine will also keep spinning on Android never showing a firmware update is available. Same bike, same garage, same network, my iPhone shows the available firmware update. But everytime I attempt installation from the phone it reports an error right away. Updates from bike just seem to install but at the end nothing is updated. So far no luck.

The updating system works perfectly on my cheap Android phone for my 2018 S. It only takes a few seconds to check for a new firmware update - providing that it has connected with my bike and provided that my phone is receiving my wireless internet signal. However, some times it takes a couple of tries before the Zero app finally connects to the bike via Bluetooth.

Same here on my Samsung Galaxy S10.  Sometimes it connects immediately, other times it "searches" for several minutes despite the fact the phone is literally SITTING on top of the bike, and I have the bike in "Bluetooth Discover" mode.

[karlh]

For Richard and Jaime - Your S models are very different from my SR/S; different bike operating systems and different phone apps.  The SR/F - SR/S bikes and apps seem to still be going through teething problems that older bikes ave already overcome.

[Richard230]

For Richard and Jaime - Your S models are very different from my SR/S; different bike operating systems and different phone apps.  The SR/F - SR/S bikes and apps seem to still be going through teething problems that older bikes ave already overcome.

I am very much aware of that. If I had bought an SR/F or S I would likely be totally confused by the new operating system. I really like simple and I keep my Zero's screen stuck in just one set of display options. I just went for a short ride on my bike and the new firmware hasn't made any difference that I can detect - which is likely a good thing for me.

I might also add that when I ride my daughter's 2014 S with PT I can't tell any difference in the way it runs, compared with my 4-year newer model. The last time that bike had its firmware upgraded was in January 2014. It's range is a little less, but that is about it.

[Richard230]

I have ridden my Zero twice starting out with a full charge at 100% SOC on the display. Since I have installed the BMS version 39 firmware update for my 2018 Zero S I notice that the SOC is now dropping from 100% to 99% within less than a mile after leaving my home. My bike had been traveling two miles before it dropped 1% on the display.  The only reason that I can think of for this change is perhaps the new BMS firmware is cutting off the charging at a slightly lower voltage than previously. While the first 1% drops quickly, during the rest of my ride the SOC display remains as before for the same distance and speed.

[Crissa]

The other reason is that the calculation is different.  Something simple as when to round can change the display.

-Crissa

[shayan]

I have ridden my Zero twice starting out with a full charge at 100% SOC on the display. Since I have installed the BMS version 39 firmware update for my 2018 Zero S I notice that the SOC is now dropping from 100% to 99% within less than a mile after leaving my home. My bike had been traveling two miles before it dropped 1% on the display.  The only reason that I can think of for this change is perhaps the new BMS firmware is cutting off the charging at a slightly lower voltage than previously. While the first 1% drops quickly, during the rest of my ride the SOC display remains as before for the same distance and speed.

Full charge with cell balancing complete? I have seen this behavior even without the latest software, when the cell balancing has not been complete

[DonTom]

I have ridden my Zero twice starting out with a full charge at 100% SOC on the display. Since I have installed the BMS version 39 firmware update for my 2018 Zero S I notice that the SOC is now dropping from 100% to 99% within less than a mile after leaving my home. My bike had been traveling two miles before it dropped 1% on the display.  The only reason that I can think of for this change is perhaps the new BMS firmware is cutting off the charging at a slightly lower voltage than previously. While the first 1% drops quickly, during the rest of my ride the SOC display remains as before for the same distance and speed.

There are three ways to be at 100% SOC while charging:

1. Barley at 100% SOC (contactor closed while charging).

2. At the upper end of 100% SOC (contactor still closed).

3. Completely charged at 100% (contactor opens while still connected for  charging).

When you hear the click to open the contactor is when you know you're fully charged.

Or when you unplug and do NOT hear the click because the contactor is already open and the battery is fully charged.

IOW, the 100% SOC doesn't always mean fully charged, unless the contactor opens.

-Don-  Auburn, CA

[Richard230]

I have ridden my Zero twice starting out with a full charge at 100% SOC on the display. Since I have installed the BMS version 39 firmware update for my 2018 Zero S I notice that the SOC is now dropping from 100% to 99% within less than a mile after leaving my home. My bike had been traveling two miles before it dropped 1% on the display.  The only reason that I can think of for this change is perhaps the new BMS firmware is cutting off the charging at a slightly lower voltage than previously. While the first 1% drops quickly, during the rest of my ride the SOC display remains as before for the same distance and speed.

There are three ways to be at 100% SOC while charging:

1. Barley at 100% SOC (contactor closed while charging).

2. At the upper end of 100% SOC (contactor still closed).

3. Completely charged at 100% (contactor opens while still connected for  charging).

When you hear the click to open the contactor is when you know you're fully charged.

Or when you unplug and do NOT hear the click because the contactor is already open and the battery is fully charged.

IOW, the 100% SOC doesn't always mean fully charged, unless the contactor opens.

-Don-  Auburn, CA

Both times I waited (as I always do) until balancing is complete and power draw is reduced to 4 watts on the Kill-A-Watt meter before disconnecting the power cord. If I wait more than 10 minutes before disconnecting the power cord after balancing is complete the green charging light will stay on and the contactor switch will not click off until I cycle the ignition switch on and then off. But if i disconnect the power cord within 10 minutes of when the charger stops drawing power the contactor switch will click off and the green charging light will go off. I might add that this is a feature of the original BMS program on my Zero and has not changed with any of the firmware updates over the past three years. I tried both systems of making sure that the battery pack was fully charged and balanced and achieved the same result of a quick drop from 100% to 99% on the display. 

[DonTom]

Both times I waited (as I always do) until balancing is complete and power draw is reduced to 4 watts on the Kill-A-Watt meter before disconnecting the power cord. If I wait more than 10 minutes before disconnecting the power cord after balancing is complete the green charging light will stay on and the contactor switch will not click off until I cycle the ignition switch on and then off. But if i disconnect the power cord within 10 minutes of when the charger stops drawing power the contactor switch will click off and the green charging light will go off. I might add that this is a feature of the original BMS program on my Zero and has not changed with any of the firmware updates over the past three years. I tried both systems of making sure that the battery pack was fully charged and balanced and achieved the same result of a quick drop from 100% to 99% on the display. 

I knew I forgot something, that green light that stays lit but stops blinking between steps 1 and 2, contactor still closed.

BTW, I tried to check my Zeros last night for updates. I can pair with each bike but  the Zero  app does NOT see the bike when I go to use it. I have noticed before, sometime it works, sometimes it doesn't. What could I be doing wrong?  Seems rather flakey, but I am not sure if it's the bike, the Zero app or me .

-Don-  Auburn, CA

[Richard230]

Both times I waited (as I always do) until balancing is complete and power draw is reduced to 4 watts on the Kill-A-Watt meter before disconnecting the power cord. If I wait more than 10 minutes before disconnecting the power cord after balancing is complete the green charging light will stay on and the contactor switch will not click off until I cycle the ignition switch on and then off. But if i disconnect the power cord within 10 minutes of when the charger stops drawing power the contactor switch will click off and the green charging light will go off. I might add that this is a feature of the original BMS program on my Zero and has not changed with any of the firmware updates over the past three years. I tried both systems of making sure that the battery pack was fully charged and balanced and achieved the same result of a quick drop from 100% to 99% on the display. 

I knew I forgot something, that green light that stays lit but stops blinking between steps 1 and 2, contactor still closed.

BTW, I tried to check my Zeros last night for updates. I can pair with each bike but  the Zero  app does NOT see the bike when I go to use it. I have noticed before, sometime it works, sometimes it doesn't. What could I be doing wrong?  Seems rather flakey, but I am not sure if it's the bike, the Zero app or me .

-Don-  Auburn, CA

Sometimes I have to try a couple of times before my bike is recognized, even though the Bluetooth symbol shows up on the dash.  What I usually do is to exit the Zero app with the bike turned on and then enter the app again and it usually grabs my bike the way it is supposed to do. I agree the communication between the bike and the app does seem a bit flaky at times. But so far I have always managed to get it to work. It just takes a couple of tries. 

[princec]

Bluetooth is famously shit, one of the least usable wireless networking systems around.

Cas

[Crissa]

Bluetooth is famously shit, one of the least usable wireless networking systems around.

It's more that, lots of devices have crappy implementation.

-Crissa