Shimano E8000 firmware update

lightning

Well-known member
Apr 5, 2021
715
410
UK
Just been on the app and there's a motor update available
From 4.9 to 4.93

Has anyone updated and was there any difference? l didn't want to perform the update in case it affected the Stunlocker settings. l've got the wheel circumference set at 2350 (which is the actual measured circumference) as standard it was set at 2450

Plus the bike thinks it's in the USA
 

Gary

Old Tartan Bollocks
Author
Subscriber
Mar 29, 2018
10,496
10,702
the internet
not sure why you'd even open the Shimano app if you use Stunlocker.
but if you're derestricted or uing any other stunlocker features not in the shimano app certainly don't update your firmware.
Shimano always make their Firmware notes freely available if you wan to know what's in the update.
 

lightning

Well-known member
Apr 5, 2021
715
410
UK
Oh okay, thank for the heads up.

I checked and
it says "bug fixes for the error
detection system" and "improved the display accuracy for assist travelling range"
 

R120

Moderator
Subscriber
Apr 13, 2018
7,819
9,190
Surrey
If its working fine I wouldn't update it - I haven't updated mine in over 2 years.
 

B1rdie

E*POWAH Elite World Champion
Subscriber
Feb 14, 2019
898
1,101
Brazil
I was riding with 4.9.0 when the motor gave an E10 error at +- 5.000 km. The new motor is on 4.6.1 and I have noticed that in this older firmware version and can get some 10% more range than I got with 4.9.0.
In this case i resolved not to upgrade anymore and keep the 4.6.1.
 

lightning

Well-known member
Apr 5, 2021
715
410
UK
Probably a good idea.

Also with any software before 4.9 you can use Stunlocker to change the wheel circumference and other settings.
 

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