Whenever I try to install the 4.4.4 update, my S5 will enter reprogramming "Installing system update...," churn for a couple of minutes, status goes up to ~20%, displays "Error," restarts and gives an update failed message: "Software update unsuccessful...sorry there was a problem updating your SAMSUNG SM-G900V. No changes were made." Update history says NE9 to NI2 failed, 402....
I've tried wiping cache partition and trying the update in safe mode. No difference. Trying to avoid a factory reset, especially since I've also read a little that that doesn't seem to make a difference anyway. Stock phone. Any other suggestions on the culprit?