Firmware update instrucions for NEWPRINT/Multi
2026-03-31

Please note, update commands are different depending on firmware version number.  

NOTE:  The USB cable will provide power to your NEWPRINT. 
       Do NOT use barrel jack for power when updating firmware.

# MAC - Find serial port name with terminal command: ls /dev/cu.* 
        after you plug in your NEWPRINT.  
# Windows - Find COM port name using Device Manager after you plug in your NEWPRINT.  
    Look under "Ports (COM & LPT)".

================================
WHEN FLASHING FIRMWARE <= v1.4.3
================================
esptool.py \
--chip esp32 \
--port /dev/cu.usbserial-0001 \
--baud 921600 \
--before default-reset \
--after hard-reset write-flash -z \
--flash-mode dio \
--flash-freq 80m \
--flash-size detect \
0xe000 boot_app0.bin \
0x1000 newprint-multi.ino.bootloader.bin \
0x8000 newprint-multi.ino.partitions.bin \
0x10000 newprint-multi.ino.bin

================================
WHEN FLASHING FIRMWARE >= v2.0.0
================================
esptool \
--chip esp32 \
--port /dev/cu.usbserial-0001 \
--baud 921600 \
--before default-reset \
--after hard-reset write-flash -z \
--flash-mode dio \
--flash-freq 80m \
--flash-size detect \
0x1000 newprint-multi.ino.bootloader.bin \
0x8000 newprint-multi.ino.partitions.bin \
0xe000 boot_app0.bin \
0x10000 newprint-multi.ino.bin \
0x310000 littlefs-np-files.bin