Before we start, note you will need a Bootloader Box for plug and play updates to your 850C Display's Version of TSDZ2 Open Source Firmware. Now repeat after Bart:
Note: You will also need a TSDZ2 Motor Firmware Programming Cable if you are planning to install and/or update the Open Source Firmware on your TSDZ2 Motor, which has a separate installation/updating process detailed in our article: 'TSDZ2 Motor Firmware Programming'.
Step 1 - Download 'APT Burn Tools' 850C Display Bootloader Firmware Update Software, and the Most Recent Version of the 850C Display Open Source Firmware for TSDZ2.
Step 1a - Download APT Burn Tools (APT's 850C Display Bootloader Firmware Update Software) - The file is a direct executable - no installation process - it is good to go.
Step 1b - Download 850C Display Open Source Firmware for TSDZ2 - Version 0.6.2 (which pairs with Motor Version 0.51.0) - The 850C Firmware link will always be to the most recent version that is tested and stable. (However, you can see all versions/updates/log on the developer website - TSDZ2, 850C, and SW102 - Open Source Firmware Archive)
*NOTE - As of March 1st, 2020, In our opinion the most recent but stable version is 850C Display v0.6.2 which pairs with TSDZ2 Motor v0.51.0. There are a few more recent versions out, but we have found several bugs and glitches that can cause issues if later versions. Visit the developers website and archive for more information and download links as needed.
Step 2 - Connect the 850C Display to Bootloader Box to Computer
Step 2 - Just plug it all in - any order is fine. Both lights should be lit on the bootloader. Leave the display OFF for this process, but make sure the remote / button panel is plugged in.
Step 3 - Identify the COM/Port and Download Driver if Needed
Step 3a - Open the device/hardware manager and note the Port / COM# your bootloader box is connected to.
Step 3b - Download the driver (if needed) here: Silicon Labs CP210X Drivers (for APT's 850C Bootloader)
Note: If you choose to make your own bootloader box (with either USB to UART cable and a wire from your battery, or another USB step up driver) then you may need to note the device name and manually search for a driver.
Step 4 - Open APT Burn Tools, Configure, and Update your 850C Display Firmware
Step 4a - Open the Apt Burn Tools Software which was Downloaded in Step 1.
Step 4b - Select the COM# of your Bootloader Box which was Determined in Step 3.
Step 4c - Press the 'Open Port' button.
Step 4d - Select the Firmware File which was Downloaded in Step 1.
Step 4e - Press the 'Update Firmware button
Step 4f - On your 850C Display remote / button panel - short press the power button, and wait until the status bar reaches 100% before unplugging.
You will see the % Bar start to rise, and once it gets to 100% and you see that the update was successfully completed in the log, you can immediately unplug your 850C display - no need to press any buttons on the software, exit out first, or anything like that - you are good to go!
While the display is plugged into the bootloader box which is plugged into the computer - you may want to briefly turn on the display to verify that the update took.
That's it! Make sure your TSDZ2 Motor has the Open Source Firmware installed and you are good to go!
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