After launching, take a moment to set up v6.50 for optimal use:
Older versions had a vulnerability where malicious .hex files could cause a buffer overflow. v6.50 patches this, ensuring safer programming of unknown code.
Connect your TL866 via USB. Windows should detect it as “Xgecu TL866” (not “Unknown device”).
Launch MiniPro from the desktop shortcut. The software will open a “Device Connection” window. Select your model (TL866A/CS or TL866II Plus) and baud rate (leave as default, unless troubleshooting). download minipro v6.50
Firmware check: The first launch will compare your programmer’s firmware to the version bundled with v6.50. If an update is needed, the software will guide you. Do not interrupt this process – a failed firmware update can brick the device.
Once you have downloaded the package (typically a .rar or .exe file), follow these steps carefully.
Some MiniPro units received a silent hardware revision in late 2023. Older software versions (pre-v6.40) cannot communicate with these units. v6.50 fully supports all TL866 revisions, including the latest v3.x firmware. After launching, take a moment to set up v6
Solution: You may have an outdated version. Verify you downloaded v6.50 (check Help → About). If confirmed, manually update the database from the official site (separate .dat file).
How does v6.50 compare to other programming software for TL866?
| Software | Device Support | Stability | Cost | Best For | |----------|----------------|-----------|------|-----------| | MiniPro v6.50 | 15,000+ | Excellent | Free | Most users | | MiniPro v6.0 (old) | 8,000+ | Buggy | Free | Legacy systems | | OpenProg (3rd party) | 2,000+ | Fair | Free | Linux users | | USBasp (for AVR only) | 200+ | Good | Free | AVR-only | Older versions had a vulnerability where malicious
Clearly, v6.50 remains the gold standard.
No. The official software is Windows‑only. For Linux, use the open‑source minipro command‑line tool (version 0.6+ supports most chips from the v6.50 database but not all). Or run MiniPro via Wine – v6.50 has a Gold rating on WineHQ.