Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[gt13013]

Is there still a community of Zero Gen2 users who continue to download their logs directly from the MBB or BMS using a TTL cable or other equipment? I used to do this with a TTL cable, but I can no longer do it on my 2023 model year Zero S. I don’t know if this is due to a change in my computer and the TTL cable driver, or a change in the bike’s firmware. When I bought my bike, the MBB/BMS firmware versions were 37/44. After the dealer's update in April 2024, I was on 39/46. Since the dealer's update in April 2025, I’ve been on 41/48.

I'm also unable to check the firmware on my 2023 model year Zero S using the Zero Next Gen v2.13.0 (1) app on Android. The app detects that the firmware is Rev 41 for the MBB and Rev 48 for the BMS, but fails to find any update. Is your app able to make firmware updates?

I suspect that in the recent firmware updates installed by the dealer during service visits, Zero has made changes that have altered quite a few things.
In fact, if you compare the user's manuals for the motorcycle from 2023 and 2026, you can see that there have been changes. For example, regarding long-term storage, in 2023 you had to charge it to 60% and unplug the bike, but in 2026 the manual states that you should leave it plugged in and that after 30 days it will automatically discharge to 80% SOC! If that’s true, it shows that Zero has completely changed certain things... I can’t tell you if my 2023 S has switched to this new operating mode, since this winter I did as usual, leaving it charged at around 50%, and the SOC didn’t change during the storage period. If you want to check the manual’s instructions:
Zero S-DS-DSR 2023 Owner’s Manual 88-09956-01, see page 6.27
Zero S-DS-DSR 2023 Owner’s Manual 88-09956-06, see page 6.27

In your responses, and to help us identify the issue, please provide your motorcycle model, your MBB and BMS firmware numbers, whether you have encountered any difficulties extracting logs from the MBB or BMS port, and what device you are using to extract these logs.