Chosen Solution
What are the two components near the battery connector just to the left of the arrow shown in the linked picture? https://d3nevzfk7ii3be.cloudfront.net/ig…
The first one on the left is: FL11 (120 Ohm/210mA/01005 Ferrite bead - it HAS to be there!) The second one from the left is C279 (56pF/16V/01005 - optional but best to replace) The third one from the left (circled in your image) is: C23 (same as C279)
