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This page is updated on: 2023-March-06.
On this page I accumulated information about some support tools for the Shimano based Ebike or Emtb.
With these tools only the software settings of the bike are changed !!!
Some of these tools allow to change (unlock, software flash) the riding characteristics, the speed restrictions (destination country), adjusting the wheel circumstance and/or the gear mode and much more.
If you do not want to downgrade the firmware of the motor but want to increase the maximum support speed then currently you need a Windows application, eMax and StUnlocker, and Shimano SM-PCEx interface to make the changes.
Changing the circumstance or gear mode allows an additional speed in/de-crease but causes inaccurate speed indication on the bike's display.
Downgrading the motor firmware to the official version 4.3.2 will allow to set maximum speeds per drive mode (eco, trail, boost).
I understand that downgrading the motor firmware is possible with the Shimano SM-PCE1 interface with Windows E-tube version 3.3.2 or
with a rename trick with the Shimano SM-PCE02 interface with Windows E-tube version 3.4.5 .
Maybe this trick could also work with the Android/IOS E-Tube app from Shimano but no garantees here. Google on "emax firmware downgrade".
All tools allow to change the riding characteristics, the motor torque [20 .. 90 Nm] and assist ratio [20 .. 300 %], per drive mode (eco, trail, boost).
But only E-Tube has restricted that into 3 steps. All other tools allow a specific value within their range. SEE SPREADSHEET BELOW.
Unlock codes are based on the serial number of the motor unit which is unique per motor.
Here some solutions to Bluetooth LE pairing problems.
- Pricing: app free; unlock code per motor 119 Euro
- Platforms: Andois, IOS, Windows. Windows only via Shimano SM-PCEx interface.
- Documentation (english): yes, step-by-step instructions
- E-mail support: yes
- Origin country: Germany, Obergriesbach
- Forum (German): https://www.pedelecforum.de , search for "eMax" or "Peter Mayer"
- Remark: browse the forum and you will find more links to the eMax website to: spreadsheets, downgrade instructions, manuals, older eTube versions.
The forum support is very good, the website has much information.
- Pricing: 99 to 199 Euro, depends on motor type and desired speed
- Platforms: Android, IOS
- Documentation: yes, professionally looking
- E-mail support: yes, and remote sessions with a specialist, 1st year free then annual costs 39 Euro.
- Origin country: Italy
- Forum: -
- Remark: They seem to support more e-bike motors. I do not like an app that requires a login and ethernet access.
- Pricing: app free; unlock not possible; official Shimano app
- Platforms: Android, IOS, Windows. Windows only via Shimano SM-PCEx interface.
- Documentation: yes, professional
- E-mail support: no
- Origin country: Japan
- Forum: no
- Remark: update firmware (no downgrade), current version with warnings when tweaks are detected
- Pricing: app free; unlock code per motor 30 Euro (ex Vat)
- Platforms: Android, IOS, Windows (support was stopped but started again). Windows only via Shimano SM-PCEx interface.
- Documentation (english): yes, professional step-by-step instructions
- E-mail support: yes
- Origin country: Russia, Rostov-on-Don
- Forum: https://www.emtbforums.com/community , search for "vadll" or "StUnlocker"
- Remark: cheap, good instructions, no downgrade support.
- Pricing: app free; in app purchase (ex Vat) 1.00 Euro or 20.00 Euro per motor (full version),
- Platforms: Android, IOS. in app purchase is for both Android and IOS.
- Documentation (english): yes, professional step-by-step instructions
- E-mail support: yes
- Origin country: Spain, San Sebastian
- Forum: no
- Remark: cheapest, good instructions, with downgrade instructions,
Requires an internet connection due to payement check, per motor, via https://www.recambios-mtb.com/
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