doc: add bootloader force instructions for TeleBT v4.0

diff --git a/doc/updating-firmware.inc b/doc/updating-firmware.inc
index 91aa58f2b3309c87cc00edc79da6362f61c211e3..d28838290c0f7d7195e0f5e6ccd10f3de52004e7 100644 (file)
--- a/doc/updating-firmware.inc
+++ b/doc/updating-firmware.inc
@@ -131,6 +131,12 @@
                        to the USB wires on the row of pins towards the center
                        of the board. Ground is available on the capacitor
                        next to it, on the end towards the USB wires.
                        to the USB wires on the row of pins towards the center
                        of the board. Ground is available on the capacitor
                        next to it, on the end towards the USB wires.

+                       
+                       TeleBT v4::
+
+                       Connect pin 30 on the CPU to ground. Pin 30 is the 6th
+                       pin from the right on the top when the unit is oriented
+                       such that the SMA is at the top.

                        endif::telemetrum[]
 
                        Once you've located the right pins:
                        endif::telemetrum[]
 
                        Once you've located the right pins: