Reinstalling First Crack Card Firmware
This is a guide for reinstalling the default firmware onto your first crack card. Only follow the steps in this guide if you have received an email from support instructing you to do so. In that email, you will have been sent a file to download, with a filename ending in “.bin”. This file is the firmware that you will be installing.
Before you start
⚠️DISCLAIMER
Information in this document is believed to be accurate and reliable. However, the manufacturer does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of the use of such information. The manufacturer is not liable or responsible for any problems arising from the attempted repair. The manufacturer reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. The manufacturer's products are not designed, authorized, or warranted to be suitable for use in applications where failure or malfunction can reasonably be expected to result in personal injury, death, or severe property or environmental damage. The manufacturer accepts no liability for inclusion and/or use of its products in such equipment or applications and therefore such inclusion and/or use is for the customer’s own risk.
⚠️SAFETY INSTRUCTIONS
make sure the roaster is turned off
the power cord has to be unplugged
follow the steps as instructed below
Tools
Micro-USB cable
Jump wire
Procedure
Note that this guide has been written for the Windows operating system.
Step 1: Download and install the installer
Download and install the ‘STM32CubeProgrammer’ software from this page. This program allows you to communicate with the first crack card.
Step 2: remove the first crack card from your roaster
Unplug the ribbon cable from the back of the first crack card, then pull the card off its rubber holders.
Step 3: Connect the card to your computer
On the card, there are ten pins where the ribbon cable plugs into. Use the jumper cable to connect the second pin in the top row to the last pin in the bottom row. Plug the micro-USB cable into the card, and plug the other end into your computer.
With the jumper wire still connected, press the button on the first crack card.
Step 4: Flash the firmware
Open the STM32CubeProgrammer program. On the right hand side, select ‘USB’ from the drop down menu.
Click the refresh symbol. The USB port that the first crack card is connected to should appear in the drop down menu (e.g. ‘USB 1’).
Click on ‘Connect’.
In the toolbar on the left, click on the second icon from the top.
Then in the left panel, under ‘Download’, click ‘Browse’ and find the firmware file on your computer.
Click on ‘Start Programming’. If the firmware is successfully installed, you will see a message saying ‘File download complete’.
Once the firmware is installed, you can remove the jumper cable and USB cable and reinstall the first crack card.
