anchor.diff:  recover from this is to reflash the device. If you don't have any enemies, you may skip this step,
   and move straight to step 3.
   
  -== 2. Paste the public key from pc-nrfutil into your device-page (optional)
  +== 3. Paste the public key from pc-nrfutil into your device-page (optional)
   Now that you have a private key, you can generate the public key for it:
   
   `nrfutil keys --show-vk hex private_key.txt`
  
positive.code: 
  IMPORTANT: All precompiled hex-files are made for the 256k Flash/32k RAM version of the nRF51. Recompile to make them work on other hardware configurations.
  
  1. Generate a signing key file with pc-nrfutil (optional)
  2. Paste the public key from pc-nrfutil into your device-page (optional)
  3. Generate a hex version of your device-page with the tool in /nRF51/bootloader/pc-util.
  4. Erase all chip memory including UICR on all devices.
  5. Flash the Softdevice on all devices.
  6. Flash the serial bootloader on all devices.
  7. Flash the device page on all devices.
  8. Flash the first application on all devices (serial version on the serial-gateway device).
  9. Verify your bootloader with the bootloader verification script.
  10. Generate a DFU-file with the pc-nrfutil tool, giving arguments that match the device-page.
  11. Transfer the DFU-file over serial with the pc-nrfutil tool.
  
  == 1. Generate a signing key file with pc-nrfutil (optional)
  You need a signing key if you want to verify and sign the DFU. Use nrfutil to generate a signing
  key:
  
  
negative.code: The bootloader verification script does not alter your setup in any way, and you may safely continue
  without it. It serves as a checkpoint and help utility in the process.
  
  == 11. Generate a DFU-file with the pc-nrfutil tool, giving arguments that match the device-page.
  To do a DFU, you need to create a DFU-file. The DFU file is really
  a .zip, which contains the application binary, along with some metadata. Matching the FWIDs in
  your device page file, call the nrfutil tool from /nRF51/bootloader/:
  