There are a variety of ME 7.1.1 PCBs with different possibilities to short pin 24. The photo below from the S4 Wiki shows a solder pad to short pin 24. The solder pad does not exist on my or all ME 7.1.1 PCBs so I wanted to confirm that it would be necessary to actually short the 29F800BB pin instead of a different solder pad as shown in this link below.
https://s4wiki.com/wiki/File:ME7.1.1-bootmode.png