Okay, so I rooted my phone back in December and had no problems at all with firmware 4.3. I had this app called "Clean Master" I think, so it analyzed my device to clean up "unnecessary" files and such. I go ahead a clean whatever it had "cleaned" and then I noticed that when I went into settings that it started freezing for about a minute or so and had to force close the settings. It also started to restart randomly at times and it got to the point where I just got fed up and looked to the internet. I decided to use Odin to Unroot my phone because at the time that's what I thought was causing the problem. This is where I think (I know) I screwed up. Instead of flashing the stock firmware for the T-Mobile Galaxy s4 I flashed this "GT-I9500-XSE-I9500XXUAME1-ROOTED_MAY4". I think I used this file for rooting but I downloaded so many files to get the rooting to work that I don't remember. This file is neither an .md5 file nor a .tar file. I don't know what I was thinking and I regret the decision. I started the transfer of whatever file that was to my phone using the Custom ROM download screen, and it only took about 4 seconds and said it passed. It reboots but ever since has been stuck on the Samsung Galaxy s4 screen. Recently it now says "Firmware upgrade encountered an issue. Please select recovery mode in Kies & try again. I've tried connecting the device via Kies but IT DOES NOT CONNECT. I'm beginning to think that I've just completely destroyed the phone and will be needing to by another. Any help would be much appreciated. I've tried everything I know. I've wiped the cache, wiped the data and factory reset the phone, but it won't reboot correctly. I'm stuck people. What can I do?