so i flashed a bad file, (wrong file) and lost all my signal (couldnt find a signal even on stock rom) took it to a sprint store, they flashed the stock rom, got my signal back, but now i dont have wifi calling and when i boot i dont get the sprint spark splash screen, just the samsung animation (which was never there before) and my signal has weakened, any thoughts? (accidentally flashed a modem file for the wrong phone btw)