Part 2 of 2 Shimano EP8: How I Raised My eMTB Speed Limit from 15 mph to 20 mph (Step-by-Step)

In this video, I show exactly how I upgraded my Shimano EP8-style eMTB motor—purchased from AliExpress—from a 15 mph (25 km/h) limit to 20 mph (32 km/h) using the E-Tuning Android app. This is Part 2 of 2, where I actually install and activate the firmware. If you missed Part 1, go watch it first—it covers all the warnings, setup steps, and EO app configuration you’ll need before you begin. This video walks through: Installing the E-app correctly (with Bluetooth + Airplane Mode) Rolling back and reinstalling the firmware Buying and activating the E-Tuning license Changing the speed limit and wheel circumference Verifying your new 20 mph limit ⚙️ Caution: Firmware modification may void manufacturer warranties or violate local e-bike laws. Proceed responsibly. ⏱️ Chapters with Timestamps 0:00 – Intro and overview (Part 2 of 2) 0:41 – Recap of Part 1 warnings & setup 1:01 – Preparing your phone (Airplane Mode + Bluetooth) 1:40 – Connecting ET app to the motor 3:00 – Verifying current firmware version 3:42 – Rolling back software and updating firmware 4:55 – Finishing firmware install 5:40 – Downloading the E-Tuning app 6:09 – Purchasing and activating the license 6:57 – Updating the speed limit to 32 km/h (20 mph) 7:25 – Adjusting wheel circumference (27.5”) 8:13 – Verifying the new 20 mph limit 8:18 – Wrap-up and final results