X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=keyboards%2Fjj40%2FREADME.md;h=7d3612554bc75d0f8752ba2457b4ee020cdfeb5a;hb=2a231457bd494079c36cf3e07c9b887016adb491;hp=26d551cf724794169b01bb1e727bc93e421cbe4d;hpb=c8cbee5d718244dd06fda66a0edf5d4cb73b2434;p=qmk_firmware.git

diff --git a/keyboards/jj40/README.md b/keyboards/jj40/README.md
index 26d551cf7..7d3612554 100644
--- a/keyboards/jj40/README.md
+++ b/keyboards/jj40/README.md
@@ -36,7 +36,7 @@ $ make
 $ sudo cp bootloadHID /usr/bin
 ```
 
-In order to use the `./program` script, which can reboot the board into
+In order to use the `././util/atmega32a_program.py` script, which can reboot the board into
 the bootloader, you'll need Python 2 with PyUSB installed:
 
 ```
@@ -69,3 +69,16 @@ Windows sometimes doesn't recognize the jj40. The easiest way of flashing a new
 3. If you get an error such as "Resource Unavailable" when attemting to flash
    on Linux, you may want to compile and run `tools/usb_detach.c`. See `tools/README.md`
    for more info.
+
+## Recovery 
+If you flash a bad hex (e.g. you have a V1 board without RGB and compile/flash blindly without editing your rules.mk), your jj40 is now semi-bricked and you're stuck unless you have access to an ISP. The [ISP Flashing Guide](https://docs.qmk.fm/#/isp_flashing_guide) contains very good (but somewhat generalized) information. However, the instructions below should get you up and running provided you have an Arduino or clone.
+
+### Arduino Setup 
+1. Upload the ArduinoISP sketch onto your Arduino board (https://www.arduino.cc/en/Tutorial/ArduinoISP).  
+2. Wire the Arduino to the jj40. Match the data pins on the Arduino to those on the jj40. "RST" usually goes to D10 on the Arduino. I didn't need a capacitor when using my Uno. 
+![Imgur](https://i.imgur.com/oLWJOkQ.jpg)
+3. Get a working bootloader from https://blog.winkeyless.kr/m/152. The file is called "main.hex" from the archive called "ps2avrGB_bootloader_161215.zip"  Copy "main.hex" to your qmk folder.  
+4. Burn the bootloader with the following command  
+` avrdude -b 19200 -c avrisp -p atmega32 -v -e -U hfuse:w:0xD0:m -U lfuse:w:0x0F:m -U flash:w:main.hex:i -P comPORT`  
+Change `comPORT` to whatever port is used by the Arduino (e.g. `com11` in Windows or `/dev/ttyACM0` in Linux). Use Device Manager in Windows to find the port being used. Use `ls /dev/tty*` in Linux.
+5. If this process is successful, you should now be able to upload normally.