Timex 5B501 Speed + Distance Battery Change Fail

Purchased a battery, replaced everything, double-checked connections, shorted the battery to the case to reset it (multiple times), watch reboots (all LCD segments black; then "OPTIONS 0011"; then "518110 1.0 P1"; then "Mon 1 - 1 12:00:00 AM" and begins incrementing seconds), but now none of the five buttons work.

UPDATE: Brilliant; I also somehow managed to put it into demo mode; according to the manual:

"Watch Battery Replacement: To avoid the possibility of permanently damaging the watch, TIMEX STRONGLY RECOMMENDS TAKING YOUR WATCH TO A LOCAL RETAILER OR JEWELER TO HAVE THE BATTERY REPLACED. After battery replacement, a DEMO mode will appear after TIME OF DAY mode. This mode is used to demonstrate features at point-of-sale and will disappear once TIME OF DAY has been set"

I can now repeatedly place it into Demo Mode after shorting the battery to another metallic portion of the watch: wait for the 12:00:00 screen to appear, then press the lower-left button once to enter demo mode. So the buttons work....

I can also repeatedly place it into "Hold to Set Time" mode after shorting the battery: wait for the 12:00:00 screen to appear, then press the upper-right button once to receive message "Hold to Set Time".

After either of these post-shorting button pushes, the buttons no longer work.

Also very cool: managed to remove the watch "core" from the band for the first time, tonight. Everything appears OK at first glance.

UPDATE #2: Picked it up this evening (Sunday) and...the buttons work again. Maybe I shorted it wrong and it took a while for things to get back to normal. However, all is well, again.