flipperzero-firmware/wiki/tools/st-link.md
Pavel Zhovner 7ded31c19d
St-Link Wiki page (#143)
* ST-Link Downgrade Manual
2020-09-29 17:56:29 +03:00

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![](./../../wiki_static/tools/st-link-v2.jpg)
# Install legacy stlink utils v.1.5.1
### macOS
```
brew tap zhovner/stlink-legacy
brew install stlink-legacy
```
# Downgrade ST-Link firmware
Some Chinese ST-Link clones won't work with latest `stlink` utils and firmware. Download firmware to fix this
1. Connect St-Link adapter to Windows PC and install driver [ST-Link_Windows_driver.zip](https://github.com/Flipper-Zero/flipperzero-firmware-community/raw/master/wiki_static/tools/en.stsw-link009.zip)
2. Run [Firmware upgrade util](https://github.com/Flipper-Zero/flipperzero-firmware-community/raw/master/wiki_static/tools/stlink-V2.J21.S4.zip)
![](./../../wiki_static/tools/st-link-upgrade-util-windows.jpg)