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1. If OTA update has failed, Cluster will display Software installation failed message and screen will transform
to idle screen after 5 seconds.
2. TCU will start flashing the baseline software for VCU, BMS, MCU & TCU after 10-15 min without any
intervention from the user, this is called Rollback Flashing.
3. Rollback flashing will be only attempted 3 times, before being considered complete failure.
4. After rollback flashing starts, screen will change to Software update progress.
5. Rollback flashing will be completed within 30-35 minutes depending on the baseline package size.
6. Same DO's and DON'TS for regular flashing to be followed.
7. The overall time taken from general OTA failure to complete rollback flashing is around 45 minutes.
8. TCU will take up to 15 minutes to start flashing rollback software from failure time.
9. If the OTA rollback flashing fails consecutively after 3 retries, then rollback will not be attempted furthermore.
10. For recovery in case of OTA and Rollback failure, diagnostic tool must be used to flash the ECU's.
DOS:
•
Though software download happens in the background while riding or while parked if vehicle is in
charging or ignition in ON condition, parking the vehicle in good network coverage area may provide
faster downloading of Software to vehicle.
•
Please charge the vehicle to at least 20% before attempting to update the Software.
•
Keep the vehicle in Idle mode before approving software update.
•
Keep the vehicle Ignition in ON condition while updating, even if the screen goes blank or vehicle
stops responding, wait for at least 30 min. This ensures that the maximum time taken for flashing of all
controllers is covered.
•
Ensure that the vehicle is not disturbed during entire flashing process (Do not use throttle, side stand,
switches etc.)
DONT's
•
DO NOT switch OFF the vehicle once software update process has started.
•
DO NOT move the vehicle till the software update completes, keep the vehicle in Idle position.
•
DO NOT switch OFF the vehicle ignition if update is clicked in the software screen.
•
DO NOT connect charger if update is clicked in the software screen.
•
DO NOT turn off the ignition anytime during OTA update or rollback, even if the display goes blank or
the update seems stuck.
50
Process followed by TCU if OTA flashing fails:
So ware Installation failed!
Please contact Road side assistance.
ECO
105
DTE
km
9:15 am
+91 1234 1234 12
100
%
OM TVS iQube Electric S - Rev 4 - As on 10 Nov 2023
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