Can’t update display/controller, not clear
Contact ENVO, provide version details/photos for guidance.
Submit a Ticket Here.
We're happy to help:
Still can't find the solution?
Or
Connect with our agents through live chats 
Related Articles
Display screen flickers, won’t update, etc
Reset/reboot display (power cycle). Check and reseat connections. Escalate to warranty if persistent.Display doesn’t show battery level or is inaccurate
Check all connections/battery health, reference troubleshooting database, escalate if persistent. Possible controller/display issue.ENVO EBike Controller Reprogramming Instructions
The controller reprogramming device is a small device used to update program in ENVO Ebikes. Step 1: The device required DC power to operate, you can use a powerbank/laptop output to power the device. Step 2: Unplug the display cable and attach the ...ENVO Display User Manual
This Display is for the following products: ENVO D50/ST50 ENVO Stax/Stax Pro ENVO FlexCan’t charge devices from display
Try other cable/device, escalate if display port is faulty.