Guys...don't be fooled...
You are replacing R139...27k with higher value...47k to 51k... NOT R52...
R52 is in the Feedback Loop of the Voltage regulator...
Refer to the schematics...
So I've ventured on my own into this mod, but in one of the gridseed I pulled out something I shouldn't, at C43 it seems, I've tried to understand the schematics to identify it but I'm failing, if possible a little help in identifying what is I need to buy and solder back in place.

Any suggestion really is appreciated.
no worries for the mod v3 which replaces the resistor NEXT to marking r52 - it isnt r52 btw its just good ref as it next to it - the c42 point is actually an open capacitor connection. the "piece" next to it is another resistor. unless you doing solder bridges - as describe back on page 1 of this thread - you have no worries, as it linked to the vid1, vid0. the mod we do replaces the resistor which corresponds to vid1 open and vid 0 open - the other allow a selction through closing off vid 1 and or vid 0.
Basically dont worry about it. the resistor next to r52 is the one you want the others 3 next to it are extra resistors which wiht modv3 are surplus and do nothing. on back on page 1 or 2 there is a photo showing the resistors labeled wiht there values if you want to replace it for any reason.