These terms and conditions govern the use of support services provided by Shenzhen Jinhaixin Holdings Co., Ltd. (hereinafter referred to as 'Jinhaixin'). All users must agree to these terms before accessing any technical assistance, software updates, or troubleshooting resources. Jinhaixin reserves the right to modify these terms at any time without prior notice. By using our support services, you acknowledge that you have read, understood, and accepted all provisions herein. Support is offered for products manufactured and distributed by Jinhaixin only, including brushless DC gearless hub motors, drive controllers, and energy battery packs. Any unauthorized modification or use of supported components may void warranty coverage. Jinhaixin does not guarantee compatibility with third-party systems unless explicitly stated in writing.