Control Modules (3)
Q: Are there different versions of ‘firmwares’ available for my NIU and what are the differences/advantages/disadvantages?
A: Yes, definitely, there are several known software revisions around – all undocumented.
Here’s what we know so far (gathered by users all over the world), columns filled with data where available…
- You’ll get the software revision from the App, it seems it always claims to be “latest version”
- The “ECUKRS” version name hints towards the official Austrian importer KSR, maybe tweaked by them
- Official dealers have a tool to update your firmware. If you have severe issues, it’s worth a try. That said, you might loose other nice features as it seems the newer releases are ‘tamed’ a bit.
| Model | Updated through | Version | V-Max | emergency operation at | comments |
| N1s 2017 | controller update & OTA | ECUKSR1.3 (Nov 17) | 47km/h | 15% | + smoother starting
– less lively |
| N1s 2017 | dealer | TRA01V08 | |||
| N1s 2017 | TRA01V04 | ~53km/h | 20% | ||
| N1s 2017 | TRA01V06 | ~53km/h | 20% | – sporadic amperage display failure | |
| N1s 2017 | TRA01V14 | ~53km/h | |||
| N1s 2017 | TRA01C02 | ~49km/h |
If you have a revision to be added, come and join the forum – there’s a special thread for this 😉
There is a mistake in my first comment: emergency Operation limit for TRA01C03 is 10%. The 77% is the battery level i needed to do the upgrade to the TRA01C10 FW version….
I got my N1S 2018 shipped with TRA01C03:
Vmax = 51km/h (downhill more)
Emergency Operation at 77%, maybe 70% (67% was not enough and the upgrade did not start!)
I did the updgrade to TRA01C10 today:
Vmax = 50km/h
Emergency operation not yet tested.
Clock works now. contact to app seems more stable. It is now possible to disable GPS.
Well… please… is there any place where I can download that software…?
I am very interested on that…
Yes… I know… only official dealers can do that…
But… I repeat again :)… is there -do you know- any place where I can download the software?…
thanks
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Sorry, not that I know of.
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The NIU N1s’ main controller normally called ECU (hidden inside/behind the front panel) has an LED, and if it blinks, that’s a message 😉
Here are the blink codes:
- 1 Over-Voltage warning
Battery voltage is higher than default value - 2 Under-Voltage warning
Battery voltage is lower than default value - 3 Over-Current warning
Instant current is higher than default value or Phase line short circuit - 4 Locked-rotor warning
Duration of Motor in locked-rotor status longer than default value
Replace FOC controller - 5 HALL failure
Incorrect HALL input(Voltage) detected
Replace Motor - 6 MOSFET failure
MOSFET power self-check failed
Replace FOC controller - 7 Phase default warning
one or more of motor phase lines missing
Replace Motor - 9 Brake applied
Controller in the braking status - 10 Self-test failure
System on the internal electrical self-checking found abnormal - 11 Controller over-heat warning
Temperature is higher than default value
Stop riding until FOC controller cool down - 14 Cable Hall Sensor Failure
Twist grip/Cable Hall Sensor Malfunction - 15 Alarm in active state
Alarm activated - 17 Communication failure
Communication between ECU and FOC controller failed
Replace FOC controller
Hey all I could not create a post so I am commenting on the most related topic. I own a niu pro bqi c3 ebike. The controller has gone bad smelling burnt. Do you know who makes this controller and where can I obtain a replacement one?
Thanks
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Hey Christan – I’m not sure how many c3 owners are around here… what about your warranty and/or seeing your dealer? No option?
Are the codes different between the models? I sometimes get short failure code 12 on my N-sport and that should be FOC overcurrent warning.
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Check your App, it offers Error-Code translation now!
Change to the “Me” page and it will offer “Error Codes” under Services… and yes, 12 means overcurrent.
Not good! Go see your dealer ASAP – the dashboard I’ve dissected showed clear signs of overcurrent through the CAN bus. I was told that the whole scooter behaved like cursed, i.e. all controllers were affected.
i have lingbo controller and it can’t use battery when i connecting battery the led always blinking and doesn’t stop i’m trying change another lingbo controller and still the same anyone know?
How to conect “blinking” with numbers? Number of blinking in minute or?
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I haven’t seen the blinking myself, yet. But I assume it’s like with every blink-code: There’s a longer pause at the end of the code before it repeats.
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For the European market NIU chose the well-known Swiss manufacturer of ready-to-use GPS modules: u-blox.
A press release of u-blox reveals that they use the standalone GNSS‑Modul MAX‑7Q, which is using a Multi‑GNSS technology (GPS, GLONASS, QZSS und SBAS), making sure that tracking will work in any part of the world, at any time, independent from a single satellite system.
Hi I recently purchased many items at an ebike liquidation auction in Auckland and I have what may be a ublox it’s got the sim the gps aerial etc it has TRA01C10
2018-08
On a sticker amongst other numbers/stickers etc can I use this at all if so is there any information available so as I can setup the sim & install?
Thanks for your time
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That’s the ECU. As destiny wanted it, I was just about to dissect one… so hop over to a new post! (After quite some time. Shame on me!)
Does the GPS still work when I have the battery removed for charging?
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Yes it does. That’s why the ECU battery drains pretty quickly…
the u-box with gps is very unliable. It seems there is a lot of interference at the manufactured poaition. (Vertical under front steer) everything in the front, with all the wires causes a lot of interference. Even the gps antenna isnt that good.
So i ordered one online. And placed it under the buddy seat.. now even insode a building i gave gps signal so happe after all
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Very nice hack! So did you open the ECU? New cables pulled from the front towards the seat-compartment?
Pictures would be very interesting (hint, hint 😉 )
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Additional comment concerning changes between TRA01C03 and TRA01C10 : The scooter does automatic recubation when the speed exceeds 50km/h downhill (it slows down). I did not see this behavoiur with the TRA01C03.