bolang V4 Online Tutorial Materials
Methods to fix USB flash drive read problems, shipped before January 28, 2026.
https://www.bolangsk.cn/docs/usb-flash-drive-file-transfer/
It is recommended that you connect the controller to WiFi to keep the system software updated, as it is still being refined.
Hello dear buyer, we are the direct manufacturer of this product. As this product is still under development, if you encounter any product issues, please contact us via email first. We will assist you in resolving the problem, or send replacement parts for repair, or process a return and refund. If you directly apply for a refund without any communication, it will be handled automatically by the AliExpress platform, and we will have no access to intervene, which makes it impossible to effectively resolve the issue.
For usage-related questions, please send an email to hankecnc@gmail.com or join our Discord 💬
E-LINK Software Download (for wireless file transfer between controller and user computer)
📢 Product Notice
🌍 January 24, 2026 – Added Russian, Spanish, and Polish language support. If you purchased earlier, simply connect to WiFi to update the host software. As these are machine translations, the quality may be rough. You can temporarily switch to English and wait for future translation improvements.
📦 Due to the global increase in eMMC and DDR chip prices, controllers purchased after January 1, 2026 will have the following changes:
💾 Internal eMMC: 8G → 4G
📂 User-available storage: 2.2G
🙏 Thank you for your understanding and continued support!