diff --git a/docs/Compiling_STM32.md b/docs/Compiling_STM32.md
index 8bdee1b..313093a 100644
--- a/docs/Compiling_STM32.md
+++ b/docs/Compiling_STM32.md
@@ -111,7 +111,7 @@ The wiring for the USB-to-TTL adapter is:
**It is critical to ensure that the USB-to-TTL adapter is set to 3.3V**.
| **DIY Multiprotocol** | **Banggood 4-in-1** | **iRangeX IRX4** | **Jumper 4-in-1** |
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1. Put the module in the transmitter
@@ -124,7 +124,7 @@ In order to flash the bootloader the **BOOT0** jumper must be installed connecti
| **DIY Multiprotocol** | **Banggood 4-in-1** | **iRangeX IRX4** | **iRangeX IRX4 Plus** | **Jumper 4-in-1** | **Vantac MPM Lite** |
|:---:|:---:|:---:|:---:|:---:|:---:|
| Bridge pins 1 and 2 as shown by the yellow jumper wire. | Bridge the left-most pins of the 6-pin header as shown by the yellow jumper. | Bridge pins 1 and 2 as shown by the blue jumper. | Bridge the BOOT0 pin to the adjacent 3.3V pin as shown by the yellow jumper. If it doesn't work move the jumper to bridge the two left hand pins (BOOT0 and directly above). | Bridge pins 1 and 2 as shown by the red jumper wire. | Brdige the two pins next to the usb port labelled with Boot0 |
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1. If on Linux, ensure you have permissions to access serial interfaces as described in [Install the Maple USB drivers](#install-the-maple-usb-drivers)
1. Install the **BOOT0** jumper as described above.