Thanks to the nimble-fingered team at iFixit, we discovered exactly where the hidden microSD slot lies on AT&T’s Windows Phone 7-powered HTC Surround, emboldening us to attempt our own extraction and transplant. The good news is that upgrading the storage is indeed possible and can be performed in a similar manner to the HTC HD7; the bad news is that disassembling your Surround not only takes a good deal of care, it will unquestionably void your warranty. That being said, if you do plan to undertake this project (and thus preclude your handset from any factory-sanctioned repairs), make sure to pry apart the necessary components gently, as we learned first-hand how fragile they are. Also be sure to pay close attention to the end of the video, as it contains a vital step that could save you a lot of time and frustration. Finally, back up all your information before the procedure, as your data will be lost after the swap.