Aventon Sinch.2 – Reprogramming ProcedureUpdated 15 hours ago
This article explains the Sinch.2 controller reprogramming process.
Use this article if:
your Aventon Sinch.2 requires controller reprogramming
support has provided the programming tool
the controller software update needs to be completed
Stop and contact support if you are unsure or if anything looks unsafe.
Before You Start
Prepare:
order number
Aventon Sinch.2 model confirmation
photo/video of the issue
the supplied programming tool
photo of the bike serial number
photo of the QR code or serial number on the underside of the downtube
confirmation of whether the bike powers on
photos of visible damage, if any
Safety warnings:
Do not continue if there is visible damage, overheating, smoke, or burning smell.
Do not open sealed electrical components.
Do not force connectors.
Stop and contact support if you are unsure.
What This Procedure Does
This process updates the controller programming on the Aventon Sinch.2 using the supplied programming tool.
Possible Causes
controller requires reprogramming
controller software update required
Troubleshooting Steps
Step 1 – Connect the Programmer
Connect the prepared programmer to the main display cable.
This is the green 5-pin connector located just outside the display.
If yes
Continue to Step 2.
If no
Do not force the connector. Contact support.
Step 2 – Start Programming
When the programmer lights up, turn the switch on.
The programmer indicator should start blinking yellow.
If yes
Continue to Step 3.
If no
Contact support.
Step 3 – Wait for Programming to Complete
Wait for the flashing process to finish.
The process is complete when the programmer indicator stops blinking and returns to normal.
If the yellow light stops blinking within 1 minute
Continue to Step 4.
If the yellow light does not stop blinking within 1 minute
The reprogramming process has failed.
Turn the unit off and try the process again.
If the issue remains
Please contact our support team with the photos/videos listed below so we can review the next step.
Step 4 – Disconnect the Programmer
Once the flashing process is complete:
Turn off the switch.
Disconnect the programmer from the main cable.
If yes
Continue to Step 5.
If no
Contact support.
Step 5 – Repeat if Required
Repeat these steps for each Sinch.2 that requires the software update.
If the issue clears
The reprogramming process is complete.
If the issue remains
Please contact our support team with the photos/videos listed below so we can review the next step.
When To Contact Support
Contact support if:
the programmer light does not stop blinking within 1 minute
the process fails after retrying
the connector does not fit easily
the bike does not power on after programming
there is visible damage
the bike has been exposed to water, crash, impact, transport damage, modification, or third-party repair
you are unsure how to safely complete a step
What To Send Support
Please send:
order number
Aventon Sinch.2 model confirmation
photo/video of the issue
photo of the programmer during the issue
photo of the display
photo of the main display cable connection
photo of the bike serial number
photo of the QR code or serial number on the underside of the downtube
photos of visible damage
confirmation of which steps were completed
Important Safety Notes
Do not ride the bike if the issue remains.
Do not force connectors.
Do not open the battery, controller, display, or sealed electrical components.
Do not work on wiring while the bike is powered on or charging.
Contact support if unsure.