# I Tried to Jailbreak a 'Pay-To-Ride' Ebike — Total Nightmare

Source: https://www.youtube.com/watch?v=yJC9s4XhiRE
Recap page: https://rapidrecap.app/video/yJC9s4XhiRE
Generated: 2025-07-15T06:36:50.248+00:00

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## Quick Overview

A discarded 'Gotcha' rental e-bike, purchased for $75 after its operator went out of business, was successfully jailbroken and made fully functional despite its complex security features and initial challenges. The process involved reverse-engineering the battery release mechanism, replacing the original defunct controller and display with a new aftermarket unit, and custom-fitting components to create a unique and rideable e-bike.

**Key Points:**
- The presenter acquired a 'bricked' Gotcha e-bike for $75 after its operating company went out of business.
- He successfully bypassed the electronic battery lock by applying voltage to an internal electromagnetic latch.
- The original control system, including the display and motor controller, was replaced with an aftermarket Tongsheng unit.
- Custom wiring and a 3D-printed bezel were necessary to integrate the new display into the bike's dashboard.
- The belt drive's creaking was resolved by adjusting the rear axle tensioners, and a new pedal assist sensor was installed.
- A voltage reducer was added to safely power the original lights from the new controller's higher voltage output.
- The total cost for materials to make the e-bike fully functional was under $200, making it a unique and cost-effective project.

![Screenshot at 00:00: Man introducing the Gotcha e-bike in front of a garage door.](https://ss.rapidrecap.app/screens/yJC9s4XhiRE/00-00-00.png)

**Context:** The video documents the journey of reviving a 'Gotcha' rental e-bike, part of a fleet that became inoperable after its operating company, Bolt, went out of business. These bikes, originally costing around $1800, were sold off cheaply as they were 'bricked' due to their integrated electronic security and reliance on a now-defunct app-based rental system. The presenter purchased one for $75, embarking on a complex reverse-engineering project to make it functional for personal use.

## Detailed Analysis

The video documents the challenging process of reviving a 'Gotcha' rental e-bike, powered by Bolt, which became inoperable after its operating company ceased business. The presenter acquired the bike for $75, noting its original $1800 value and robust features like a 3-speed internal gear hub, belt drive, and hub motor. The primary challenge was bypassing the bike's electronic security, including a locked battery and a defunct fleet management system. Initial attempts to find documentation or hack the system proved fruitless. The presenter discovered the battery release was controlled by an electromagnetic latch, which he successfully activated by applying voltage from a stronger battery after testing various wire combinations. He then replaced the original controller and display with an aftermarket Tongsheng unit, requiring custom wiring and a 3D-printed bezel for the new screen. Further adjustments included tensioning the belt drive to eliminate creaking and installing a voltage reducer for the lights, as the new controller's output was too high. Despite numerous setbacks and unexpected complexities, the bike was made fully functional with pedal assist and working lights, costing under $200 in parts. The final product is a unique e-bike with a distinct story, proving that even seemingly bricked fleet bikes can be salvaged.

### Initial Assessment & Challenges

- The presenter acquired a $75 'Gotcha' e-bike, originally costing $1800, which was rendered unusable after its operator went out of business
- The bike featured a 3-speed internal gear hub, belt drive, hub motor, and robust security measures including electronic locks and paywalls
- Initial attempts to find repair documentation or bypass the system through app or phone support failed, highlighting the complexity of the 'puzzle'.

### Battery & Latch Solution

- A mysterious unmarked button on the bike was identified as an RFID-activated battery release mechanism
- Through multimeter testing, the presenter deduced the latch was controlled by an electromagnetic coil, similar to a relay
- Applying a stronger 10.8V battery successfully triggered the latch, releasing the dead battery for charging.

### Controller & Display Replacement

- The original head unit, which served as the main control module, was found to be part of the defunct fleet system
- The presenter opted to replace the entire control system with an aftermarket Tongsheng brushless motor controller and a new display screen
- This involved extensive wire identification, labeling, and custom connections, including 3D printing a bezel to fit the new screen into the original dashboard housing.

### Mechanical Adjustments & Customizations

- The belt drive was causing creaking noises due to improper tension, which was resolved by adjusting the security axle nuts using brute force
- A new pedal assist sensor was installed with a 3D-printed mount to ensure proper function
- A voltage reducer was integrated into the system to safely power the original lights, as the new controller's output was too high.

### Final Outcome & Cost Analysis

- The e-bike was successfully made fully functional with pedal assist, working lights, and a new display showing speed and battery life
- The total cost of materials, including the bike itself, was kept under $200, making it a cost-effective revival
- The bike was customized with a 'Mos Eisley Parks & Recreation' sticker, adding a unique touch to its fleet origins.

![Screenshot at 00:00: Man introducing the Gotcha e-bike in front of a garage door.](https://ss.rapidrecap.app/screens/yJC9s4XhiRE/00-00-00.png)
![Screenshot at 00:05: A hand holding a smartphone showing the 'Gotcha Technologies' app in the App Store.](https://ss.rapidrecap.app/screens/yJC9s4XhiRE/00-00-05.png)
![Screenshot at 00:09: A person pulling the Gotcha e-bike out of the back of an SUV.](https://ss.rapidrecap.app/screens/yJC9s4XhiRE/00-00-09.png)
![Screenshot at 00:17: Close-up of security bolts on the e-bike frame.](https://ss.rapidrecap.app/screens/yJC9s4XhiRE/00-00-17.png)
![Screenshot at 00:30: Close-up of the 3-speed rotary shifter on the e-bike handlebar.](https://ss.rapidrecap.app/screens/yJC9s4XhiRE/00-00-30.png)
![Screenshot at 00:54: Man working on the e-bike's wiring, attempting to jailbreak it.](https://ss.rapidrecap.app/screens/yJC9s4XhiRE/00-00-54.png)
![Screenshot at 01:42: Man pointing to a circular black cap on the e-bike frame, explaining it's for battery access.](https://ss.rapidrecap.app/screens/yJC9s4XhiRE/00-01-42.png)
![Screenshot at 02:15: Man holding a small electromagnetic coil (relay) to explain how the battery latch might work.](https://ss.rapidrecap.app/screens/yJC9s4XhiRE/00-02-15.png)
![Screenshot at 03:10: Man successfully triggering the battery release with a stronger battery, causing the e-bike battery to pop out.](https://ss.rapidrecap.app/screens/yJC9s4XhiRE/00-03-10.png)
![Screenshot at 03:35: Man removing the e-bike battery from its compartment in the frame.](https://ss.rapidrecap.app/screens/yJC9s4XhiRE/00-03-35.png)