Here’s a structured, solid article on updating the Sunlu T3 firmware. You can use this directly on a blog, wiki, or forum.
3. Flash the main board firmware
- Power off the printer.
- Insert the microSD card (with
firmware.bin) into the printer’s main slot (usually the side slot, not the front touch panel slot).
- Power on the printer.
- The screen will remain blue or show a progress bar for 10–30 seconds. The T3 will automatically flash the firmware.
- Once the printer boots to the normal home screen, the update is complete.
- Power off and remove the microSD card. Delete the
.bin file from the card before reusing (otherwise it will re-flash every time).
Step 3: Check Current Firmware Version
Navigate the T3 menu:
Menu > Info > About Machine > Firmware Version
Write this down. You will need it to confirm the update succeeded.
Primary Sources:
- Sunlu Official Website (Support/Download section)
- Sunlu GitHub Repository (Look for "Sunlu_T3" or "T3-STM32")
- Official Sunlu Facebook Group (Files section – often the most up-to-date source as engineers post beta versions here)
Method 1: SD Card Update (Recommended)
-
Format SD card
- FAT32, 4096 bytes allocation unit.
- Name the card something simple (e.g.,
SUNLU).
-
Prepare firmware file
- Extract the download (usually a
.bin file).
- Rename the file to
firmware.bin (or update.bin – check your printer’s manual).
- Copy it to the root of the SD card.
-
Power down the printer
- Unplug USB if connected.
- Turn off power switch.
-
Insert SD card
- Into the mainboard slot (not the front SD card reader for printing).
- Some T3 models have the mainboard slot on the back or bottom.
-
Power on
- The screen will stay blank or show a “Updating…” message for 10–30 seconds.
- Do not turn off power during this time.
-
Wait for completion
- The printer will reboot automatically or show the main screen.
- Remove the SD card (otherwise it may reflash every boot).
Sunlu T3 Firmware Update Free -
Here’s a structured, solid article on updating the Sunlu T3 firmware. You can use this directly on a blog, wiki, or forum.
3. Flash the main board firmware
- Power off the printer.
- Insert the microSD card (with
firmware.bin) into the printer’s main slot (usually the side slot, not the front touch panel slot).
- Power on the printer.
- The screen will remain blue or show a progress bar for 10–30 seconds. The T3 will automatically flash the firmware.
- Once the printer boots to the normal home screen, the update is complete.
- Power off and remove the microSD card. Delete the
.bin file from the card before reusing (otherwise it will re-flash every time).
Step 3: Check Current Firmware Version
Navigate the T3 menu:
Menu > Info > About Machine > Firmware Version
Write this down. You will need it to confirm the update succeeded. Sunlu T3 Firmware Update
Primary Sources:
- Sunlu Official Website (Support/Download section)
- Sunlu GitHub Repository (Look for "Sunlu_T3" or "T3-STM32")
- Official Sunlu Facebook Group (Files section – often the most up-to-date source as engineers post beta versions here)
Method 1: SD Card Update (Recommended)
-
Format SD card
- FAT32, 4096 bytes allocation unit.
- Name the card something simple (e.g.,
SUNLU).
-
Prepare firmware file
- Extract the download (usually a
.bin file).
- Rename the file to
firmware.bin (or update.bin – check your printer’s manual).
- Copy it to the root of the SD card.
-
Power down the printer
- Unplug USB if connected.
- Turn off power switch.
-
Insert SD card
- Into the mainboard slot (not the front SD card reader for printing).
- Some T3 models have the mainboard slot on the back or bottom.
-
Power on
- The screen will stay blank or show a “Updating…” message for 10–30 seconds.
- Do not turn off power during this time.
-
Wait for completion
- The printer will reboot automatically or show the main screen.
- Remove the SD card (otherwise it may reflash every boot).
