1. Home Bar button, always the trouble here, me also, particularly when you do every single mod, including housing/shell mod
solution: trim the home bar's sprig exactly below it (might need just a bit), and tighten the LCD onto the 3 - 4 clips, check it on every corner side
2. LCD, this could be may problem associated with it, mine, I never had any problem with the fuse so far, but there might be little tips for you
solution: avoid any short contact, tighten the ribbon with soft tweezers, and gently pull them up, you might want to check it without closing the faceplate, so you can figure out whats happening