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A lot of BGA/VLSI chips can be swapped using a heat gun or a hot plate it takes finesse, but can be done with cheap harbor freight grade tools not meant for soldering...I've seen it done on YouTube. Granted I wouldn't touch those parts unless I could either prove them bad or knew they were a very common source of the symptoms experienced.
SMA passives aren't hard to change either I've done those with tweezers and a fine tip iron...A good magnifier helps if your eyes aren't young and sharp like mine.
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