Experts generally recommend using the Zebra Setup Utilities (ZSU) as the safest method for this model. Updating Printer Firmware - Zebra Technologies
There are two main hardware versions for the Actualizar Firmware Zebra Tlp 2844
Interrupting the update process (e.g., losing power or disconnecting the cable) can "brick" the printer, rendering it unusable. Recommended Update Process Experts generally recommend using the Zebra Setup Utilities