[AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin] bryantjb:
Greetings everyone,

So will not try to type out a book here, but want to try to include all the info/everything I have done do this point. I recently purchased a Galaxy S4 ( SGH-I337) ATT model. My end goal was to have it rooted with CM 11 installed on it. This is only the second phone I have attempted to root ( First was Atrix HD which went overall fine). I'm basing my end goal off of it, in that I am wanting to have it rooted with CM 11 installed. I started off by downloading Odin and used towel and was able to get the phone rooted. That seemed to have gone without too many problems. I tried to do as much reading as I could, but I'm sure I either misread or overlooked where I went wrong next. I then installed TWRP in the hopes of getting CM 11 installed. This is where the problems start. After installing TWRP ( later reading I saw I probably should have used Philz soft touch??) and restarting my phone it would only go into " Download Mode" and would forever just sit there. I did some searching and saw how to get past this simply by just restarting and holding the volume up and selecting now that I did not want to enter into Download mode. At this point I decided to go download the stock ROM and start over. I downloaded and followed the instructions from

Greetings everyone,

So will not try to type out a book here, but want to try to include all the info/everything I have done do this point. I recently purchased a Galaxy S4 ( SGH-I337) ATT model. My end goal was to have it rooted with CM 11 installed on it. This is only the second phone I have attempted to root ( First was Atrix HD which went overall fine). I'm basing my end goal off of it, in that I am wanting to have it rooted with CM 11 installed. I started off by downloading Odin and used towel and was able to get the phone rooted. That seemed to have gone without too many problems. I tried to do as much reading as I could, but I'm sure I either misread or overlooked where I went wrong next. I then installed TWRP in the hopes of getting CM 11 installed. This is where the problems start. After installing TWRP ( later reading I saw I probably should have used Philz soft touch??) and restarting my phone it would only go into " Download Mode" and would forever just sit there. I did some searching and saw how to get past this simply by just restarting and holding the volume up and selecting now that I did not want to enter into Download mode. At this point I decided to go download the stock ROM and start over. I downloaded and followed the instructions from

androidrootz.com/2014/03/how-to-unrootunbrick-at-galaxy-s4-sgh.html . From that point is where things went to hell in a hand-basket. My phone will load but whenever I try to turn on Wifi to try to re-root I get a Security Information message saying that it has blocked Wifi from turning on. Quick Google search says this is built in security "Knox"? that is causing this. Posts say that I have the wrong firmware for this phone? The bigger problem seems to be that now when I try to boot into recovery, I get a background that says "No Command" and red lettering at the top that says " Android system recovery <3e>. I have options to reboot system now, update from ADB and others. At the bottom it says #Manual Mode# Successfully applied multi-CSC. So somehow I think i have corrupted the boot loader. Of course Odin will not recognize the phone in this state to try to push any kind of firmware or boot-loader to it. At this point I truley am clueless and lost. Not at all above saying I'm above my head and need some guidence or help from someone who knows a lot more about this then I do. I really thought I had read and done plenty of research before I tried this, but non the less I have a phone I can't get into recovery and once booted, I can't get wifi to work. Thanks for your time and insight. From that point is where things went to hell in a hand-basket. My phone will load but whenever I try to turn on Wifi to try to re-root I get a Security Information message saying that it has blocked Wifi from turning on. Quick Google search says this is built in security "Knox"? that is causing this. Posts say that I have the wrong firmware for this phone? The bigger problem seems to be that now when I try to boot into recovery, I get a background that says "No Command" and red lettering at the top that says " Android system recovery <3e>. I have options to reboot system now, update from ADB and others. At the bottom it says #Manual Mode# Successfully applied multi-CSC. So somehow I think i have corrupted the boot loader. Of course Odin will not recognize the phone in this state to try to push any kind of firmware or boot-loader to it. At this point I truley am clueless and lost. Not at all above saying I'm above my head and need some guidence or help from someone who knows a lot more about this then I do. I really thought I had read and done plenty of research before I tried this, but non the less I have a phone I can't get into recovery and once booted, I can't get wifi to work. Thanks for your time and insight.