Bike does not power up (battery, controller issues)
Check main battery seated/locked. Hold power button firmly. Try known-good battery and check display connection. If dead, contact support.
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I took out the battery while the D35 / ST bike was on, now when I tried to insert the battery back the bike doesn't power on.
The battery is safeguarding against the short circuit. All you need to do is turn the battery off and then on and the bike should work fine.ENVO Flex (2024) Dual Battery Setup
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Check motor cable and controller plug. Unplug/re-seat connectors. Confirm no moisture/damage, escalate if persistent.