Newton FW 5.18 is now available

Newton FW 5.18 is now available

Postby Velocomp » Tue Nov 21, 2017 12:28 pm

FW 5.18 does the following:

• Corrects an issue with TT bikes where reported watts might be too high
• Corrects an issue with Fat Bikes where rolling resistance might be too low
• Improved power filtering—reduces watts jumpiness

You can access this firmware from Isaac, using the command "Device/Check Online for Firmware Update..."
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Re: Newton FW 5.18 is now available

Postby Zoltan » Wed Nov 22, 2017 11:28 am

Hi,

Yesterday I updated my Newton+ to FW 5.18.

Today I had my first ride with my new bike, a highracer recumbent. I mention it, because I could not install my Newton+ in a traditional way, the only position when I could place Newton+ to make the display visible for me was skewed sideways abit and also inclined at least 45%. I konow it is some kind of horror, but I had no other option.

I made a cal ride as always when I change the postiion of Newton, but I got a cal error message and "do cal" was flashing. I made as much as either 8 or 10 cal rides and all of them failed, but bang the last one was OK. To be fair I am not sure whether the new firmware made this craziness, it could easily be the strange positioning of the unit.

But there was a phenomenon which has nothing to do with the positioning. The first cal ride was the usual 1.6 km (1 mile) out and back. But when I made the second attempt, I did not get "turn 180°after 1.6 km, but only after 5 minutes. The 3rd was again a 1.6 km out and back, but the 4th was again a 5 minutes out and back. And so on.

It is also interesting that when I made the succesful last cal ride, I made around 6 km out and 6 km back. it was intentionally so long and the back was not a real back, I did not turn, just braked at a stop light. And on contrary to all of my logics, this fake cal ride, when the elevation profile of the ride was not even symmetrical, was finally successful.
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Re: Newton FW 5.18 is now available

Postby Velocomp » Wed Nov 22, 2017 12:53 pm

If your Newton is mounted at a 45° angle, that is way outside of spec!

The Newton should be approximately level on the bike.

There is no way the Newton can, or should , work when it is installed outside of the instructions.
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Re: Newton FW 5.18 is now available

Postby Zoltan » Wed Nov 22, 2017 3:30 pm

I supposed so.

And the 1.6km&back + 5 min&back sequence is a rule of cal riding in fact?
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Re: Newton FW 5.18 is now available

Postby Velocomp » Wed Nov 22, 2017 3:40 pm

Zoltan wrote:I supposed so.

And the 1.6km&back + 5 min&back sequence is a rule of cal riding in fact?


I do not understand what your question is.

I would not trust any readings with the Newton mounted and calibrated in this manner.
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Re: Newton FW 5.18 is now available

Postby Zoltan » Wed Nov 22, 2017 3:49 pm

I meant why there are two cal ride protocols alternating each other on Mewton+ with FW 5.18.

But you are right when mention the lack of trust.

Therefore I will repeat this sorta multiple cal ride test on my road bike, where the mount is properly positioned for more years and I intentionally make the first cal ride in a way to make it a failed one. And I will see whether the 2nd cal ride will be managed by the unit to be a 5 1.6 km out and back (as the first cal ride is) or a 5 min out and back (EDITED: which is the official cal ride protocol for many years, in the old days it was a 2 km out & back)

Then I will ask the same. Why there are two protocols of the cal ride alternating each other.
EDITED: I start to think it was a coincidence that each second cal ride was just at a speed of around 19.2 km/h with my new recumbent, so I got exactly 1.6 km for the 5 minutes. If so then sorry for the confusion I made
Last edited by Zoltan on Thu Nov 23, 2017 4:32 pm, edited 1 time in total.
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Re: Newton FW 5.18 is now available

Postby Velocomp » Wed Nov 22, 2017 4:08 pm

I do not understand your question. There has been zero change to the cal ride procedure. Please consult the Newton instructions
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Re: Newton FW 5.18 is now available

Postby ronpei » Wed Nov 22, 2017 7:45 pm

if the fixes do not affect any aspect of the Newton that I use is there any benefit or downside to not doing the update? If a future update comes along that is important do you need all previous updates to access it?
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Re: Newton FW 5.18 is now available

Postby Velocomp » Wed Nov 22, 2017 11:15 pm

All firmware updates include all changes from prior updates.

There's no reason to update if you don't think the changes described will benefit you.
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