Installation ‐ mainboard firmware
On the motherboard, there will be a square chip that reads something like; ARMz STM32F401 or ARM STM32F103 If the letters contain F4, you have an F4 chip. If the letters contain F1, you have an F1 chip.
Alternatively, you can visit the printer's About page where you should see either F1 or F4 on the F/W VER.
To update the board firmware, you will need to insert an SD card into the card reader on the front panel of the printer. Note: You can use a microSD and a microSD to SD card adapter
It is advisable to use an SD card that has a total capacity of less than 64GB. It is best to use a card smaller than 32GB. If the capacity of the card is larger than 8GB, create a partition on your SD card. 2GB partitions work well. The card should be formatted as FAT32 with a 4096 unit size.
Open Disk Management, if your card has no partitions it may look something like this.
Delete the existing volume
On the now unallocated space, create a new simple volume
In the wizard, set the volume size to 2048, assign the drive a letter and format with the following settings;
File System: FAT32
Allocation Unit Size: 4096
Volume Label: Set your own name, or leave as default 'New Volume'
Perform a quick format: Yes
You should now have a 2GB partition on your card which is visible in File Explorer
Download the bin file relevant to the chip you have and the release you wish to install, from Git. The firmware is named according to the release e.g. abl5x5 or ubl e.g. firmware-{date}-{time}-E3S1Pro-abl7x7-v004-F1.bin
https://github.com/ThomasToka/MarlinFirmware/releases
If you cannot find the file, click 'Show all assetts>
If you have an F4 printer, create a new folder on the card called STM32F4_UPDATE and place the bin file inside.
If you have an F1 printer, place the bin file on the root.
- Turn your printer off
- Insert the SD card into the card reader on the front panel of the printer
- Turn your printer on
- The firmware will be installed, there is no progress screen - it will simply boot after the firmware has been installed.
To confirm the successful installation, visit the printer's About page. You will see the version number as well as "-byTT".
- first check if the card is fat32 and has a unit allocation size of 4096:
- open cmd by with "Win + s" -> open command line
- type "chkdsk d:" where d: is your sd card
- second check if your sd card has a msdos partition table (MBR):
- open disc management with "Win + x" -> open disc management
- navigate to your disc, right mouse button, open properties, click on "Volumes"
