Very happy with my first foray into Japanese auctions! Upon arrival it powered up fine with an AA sidecar battery and/or power adapter, but wouldn't recognize a perfectly good, fully charged internal gumstick battery—nor would it charge said gumstick. Even though the contacts on the external battery door looked okay, I knew there had to be corrosion inside, so after shining a flashlight in the battery compartment and confirming the internal contacts were caked with the infamous green corrosion, I gingerly removed the rear case. Armed with vinegar, an old toothbrush, q-tips, and isopropyl alcohol—and having watched numerous videos on how to do it—I set about removing the green gunk. Afterwards I put it all back together—and to my utter amazement, not only did it still work, but now it recognized the gumstick battery and worked great. And that color! Sony sure knew how to do orange!
