1 files changed, 7 insertions, 28 deletions

diff --git a/docs/faq_build.md b/docs/faq_build.md
index f11cb76aa..618ae40f3 100644
--- a/docs/faq_build.md
+++ b/docs/faq_build.md
@@ -47,7 +47,7 @@ SUBSYSTEMS=="usb", ATTRS{idVendor}=="feed", MODE:="0666"
 SUBSYSTEMS=="usb", ATTRS{idVendor}=="1c11", MODE:="0666"
 ```
 
-**/etc/udev/rules.d/55-catalina.rules:**
+**/etc/udev/rules.d/55-caterina.rules:**
 ```
 # ModemManager should ignore the following devices
 ATTRS{idVendor}=="2a03", ENV{ID_MM_DEVICE_IGNORE}="1"
@@ -69,6 +69,12 @@ SUBSYSTEMS=="usb", ATTRS{idVendor}=="1eaf", ATTRS{idProduct}=="0003", MODE:="066
 SUBSYSTEMS=="usb", ATTRS{idVendor}=="0483", ATTRS{idProduct}=="df11", MODE:="0666"
 ```
 
+**/etc/udev/rules.d/57-bootloadhid.rules:**
+```
+# bootloadHID
+SUBSYSTEMS=="usb", ATTRS{idVendor}=="16c0", ATTRS{idProduct}=="05df", MODE:="0666"
+```
+
 ### Serial device is not detected in bootloader mode on Linux
 Make sure your kernel has appropriate support for your device. If your device uses USB ACM, such as
 Pro Micro (Atmega32u4), make sure to include `CONFIG_USB_ACM=y`. Other devices may require `USB_SERIAL` and any of its sub options.
@@ -81,10 +87,6 @@ Re-running the QMK installation script (`./util/qmk_install.sh` from the `qmk_fi
 
 If that doesn't work, then you may need to download and run Zadig. See [Bootloader Driver Installation with Zadig](driver_installation_zadig.md) for more detailed information.
 
-## WINAVR is Obsolete
-It is no longer recommended and may cause some problem.
-See [TMK Issue #99](https://github.com/tmk/tmk_keyboard/issues/99).
-
 ## USB VID and PID
 You can use any ID you want with editing `config.h`. Using any presumably unused ID will be no problem in fact except for very low chance of collision with other product.
 
@@ -97,29 +99,6 @@ You can buy a really unique VID:PID here. I don't think you need this for person
 - http://www.obdev.at/products/vusb/license.html
 - http://www.mcselec.com/index.php?page=shop.product_details&flypage=shop.flypage&product_id=92&option=com_phpshop&Itemid=1
 
-## Cortex: `cstddef: No such file or directory`
-GCC 4.8 of Ubuntu 14.04 had this problem and had to update to 4.9 with this PPA.
-https://launchpad.net/~terry.guo/+archive/ubuntu/gcc-arm-embedded
-
-https://github.com/tmk/tmk_keyboard/issues/212
-https://github.com/tmk/tmk_keyboard/wiki/mbed-cortex-porting#compile-error-cstddef
-https://developer.mbed.org/forum/mbed/topic/5205/
-
-## `clock_prescale_set` and `clock_div_1` Not Available
-Your toolchain is too old to support the MCU. For example WinAVR 20100110 doesn't support ATMega32u2.
-
-```
-Compiling C: ../../tmk_core/protocol/lufa/lufa.c
-avr-gcc -c -mmcu=atmega32u2 -gdwarf-2 -DF_CPU=16000000UL -DINTERRUPT_CONTROL_ENDPOINT -DBOOTLOADER_SIZE=4096 -DF_USB=16000000UL -DARCH=ARCH_AVR8 -DUSB_DEVICE_ONLY -DUSE_FLASH_DESCRIPTORS -DUSE_STATIC_OPTIONS="(USB_DEVICE_OPT_FULLSPEED | USB_OPT_REG_ENABLED | USB_OPT_AUTO_PLL)" -DFIXED_CONTROL_ENDPOINT_SIZE=8  -DFIXED_NUM_CONFIGURATIONS=1 -DPROTOCOL_LUFA -DEXTRAKEY_ENABLE -DCONSOLE_ENABLE -DCOMMAND_ENABLE -DVERSION=unknown -Os -funsigned-char -funsigned-bitfields -ffunction-sections -fdata-sections -fno-inline-small-functions -fpack-struct -fshort-enums -fno-strict-aliasing -Wall -Wstrict-prototypes -Wa,-adhlns=obj_alps64/protocol/lufa/lufa.lst -I. -I../../tmk_core -I../../tmk_core/protocol/lufa -I../../tmk_core/protocol/lufa/LUFA-git -I../../tmk_core/common -std=gnu99 -include config.h -MMD -MP -MF .dep/obj_alps64_protocol_lufa_lufa.o.d  ../../tmk_core/protocol/lufa/lufa.c -o obj_alps64/protocol/lufa/lufa.o
-../../tmk_core/protocol/lufa/lufa.c: In function 'setup_mcu':
-../../tmk_core/protocol/lufa/lufa.c:575: warning: implicit declaration of function 'clock_prescale_set'
-../../tmk_core/protocol/lufa/lufa.c:575: error: 'clock_div_1' undeclared (first use in this function)
-../../tmk_core/protocol/lufa/lufa.c:575: error: (Each undeclared identifier is reported only once
-../../tmk_core/protocol/lufa/lufa.c:575: error: for each function it appears in.)
-make: *** [obj_alps64/protocol/lufa/lufa.o] Error 1
-```
-
-
 ## BOOTLOADER_SIZE for AVR
 Note that Teensy2.0++ bootloader size is 2048byte. Some Makefiles may have wrong comment.