Here is how the update makes the T3 categorically better.
Out of the box, the Sunlu T3 usually arrives with a branded version of Creality’s stock UI. sunlu t3 firmware update better
While the T3 uses standalone TMC2208 or A4988 drivers depending on the board revision, the new firmware activates a "Hybrid Threshold." At low speeds (under 50mm/s), the motors run in quiet, stealthChop mode. At high speeds, they switch to spreadCycle for torque. Here is how the update makes the T3 categorically better
Upgrading Your Sunlu T3 Firmware: Is It Actually Better? The Sunlu T3 entered the 3D printing market marketed as a budget-friendly machine capable of "fast printing" up to 250mm/s. While the hardware offers decent value, the out-of-the-box factory firmware often leaves users frustrated with inconsistent leveling, restricted speed configurations, and mediocre print quality. At high speeds, they switch to spreadCycle for torque
Insert the card into the printer's card slot while it is powered off.