Stuck in download mode - Verizon Samsung Galaxy S 4

Hi i had tried to go back to stock ROM on my galaxy s4 but i ended up getting a failed error in the middle of it flashing the firmware getting a device removed error then my phone went off and rebooted in Odin mode saying that software update failed i tried using Odin and Verizon wireless repair assistant but my phone is not being recognized in either program i usually get my phone to be recognized by going into recovery first and going to the bootloader but i can't get into recovery mode now is there a way i can get my phone to be recognized on my computer without going into recovery mode

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[Q] BOOTLOOP No Normal or Recovery Boot/ Downloader works/ Odin does not detect on PC

Phone specs:
Samsung Galaxy S3 Verizon SCH-i535
It was already running KitKat 4.4.2 before I rooted
This is my first time rooting and flashing ROMs to my Samsung Galaxy s3 and I have bricked it. I'm pretty sure it can be salvaged but have yet to find anything that works.
I have written the long version for those who need it, but the short version is that I screwed up and can no longer boot into recovery mode or normal mode, I'm not even sure if Download mode is working, and my device isn't recognized by Kies or Odin on my PC so I cannot yet do a recovery from there.
As of now my phone only boots into Odin Mode and gives the following info:
ODIN MODE
PRODUCT NAME: SCH-I535
CURRENT BINARY: SAMSUNG OFFICIAL
SYSTEM STATUS: OFFICIAL
QUALCOM SECUREBOOT: ENABLE
BOOTLOADER AP SWREV: 2
and displays the yellow triangle error and says: Firmware upgrade encountered an issue. Please use Software repair Assistant & try again.
I tried to use Samsung Kies which has an emergency firmware tool but my device will not connect and become recognized by the program.
This is pretty much where I'm stuck.
Keep reading if you need additional info.
Steps leading up to problem:
I was able to Root the device succesfully
I then downloaded the latest CM11 package (cm-11-20140217-NIGHTLY-d2vzw.zip) and Gapps
I also downloaded the TWRP recovery img (openrecovery-twrp-2.7.1.0-d2vzw.img)
Once I had these downloaded I got the app [ROOT] Rashr - Flash Tool
I opened the app and tried to do a backup but I'm pretty sure it failed, or at least it said it failed. I couldn't find out how to check, but was not worried since I have already backed up my important files to the verizon cloud.
On the app I went to recover using other file and found the TWRP recovery img I downloaded.
From here I booted into recovery manually, but it did not bring up the TEAMWIN screen for TWRP like I've seen in other video tutorials so I rebooted into normal mode went to the Rashr app again and followed the prompt to do a Recovery boot using the TWRP img.
THIS IS WHERE THE PROBLEMS BEGAN:
It began to lead into recovery mode but it gave a message that said something along the lines that I have tried installing a custom OS and to take my phone to the nearest verizon store.
I turned it off and tried to boot back normally but got the same error.
I tried to boot into Download mode and was successful! So I thought yaay!
Read a tutorial to reload a stock version of android here: http://forum.xda-developers.com/showthread.php?t=2586319
I followed all the steps but when i got to 7. which said You should see your phone under ID:COM (you should also see it has been added in message) I was not seeing my phone there. I figured it may be OK since I was able to install the drivers so that meant the USB was working so I went ahead and ran Odin to recover Jelly Bean 4.3 onto the device.
My thoughts and guesses as to what the problem is:
I think that it may be because I was already running 4.4.2 and/ or didn't have the proper bootloader when I tried to do the TWRP recovery.
Am I on the right track? Thanks for any help!
Please ask. In correct forum this is int'l s3 (i9300) forum

Help unbrick and update Mega 6.3 sgh-i527

My phone was previously rooted (can't remember if I used mobogenie or Kingoroot). I un-rooted using superuser in an attempt to get the update to 4.4. when I tried to boot in recovery mode it says "System software not authorized by AT&T has been found on your phone. Please turn off your phone and go to the nearest ATT store for help" and "Secure Fail: KERNEL". It can be put in download mode. I've tried using odin to go back to the stock rom but get a "fail" everytime (with the pit file and without) and the message "Complete(Write) operation failed". I also tried to push files using fastboot but the computer doesn't recognize my device when I type "adb devices" -- nothing comes up. I also tried Kies but it just keeps saying "connecting" but never does.
Ultimately what I am trying to achieve is #1 unbrick the phone (of course) and #2 to end up with at least 4.4 (or possibly higher if available).
Try flashing just the boot loader in odin. That saved me several times

Error Cannot Update Software

Hello,
I've Samsung Galaxy SM-J701F/DS and i did factory reset and started getting into panic mode. So, I tried to flash stock ROM through odin and I only selected AP and left other files like Bl, CP and CSC. Thus it took longer time without any result so, I closed the odin. Since then my phone only boots in download mode.
And while trying recovery or normal boot I get " Error Cannot Update Software ".
I used this ROM:
https://www.sammobile.com/firmwares/...-nxt/SM-J701F
And now my phone is showing as Samsung USB Modem while plugging in PC.

Help installing custom or regular OS with Odin (Rev check failed)

I have a Samsung Galaxy S7 and can get into download mode. That's about it. The phone is NOT rooted and debugging is NOT on.
Cannot get into regular startup (error says something about smart switch, after an unsuccessful wipe)
Cannot get into recovery mode. It gives me an error.
Luckily I still have the box which says the mode number: G930W8VLU2APK3 , and I bought it from a Bell store so I was able to find the correct firmware, however I get a Rev check error when flashing it via Odin. I even tried a few variants and am getting the same error.
Any suggestions? I have tried flashing without Bootloader but still get the same error

Stuck in locked bootloader download mode

Hey all, hope everyone is having a great day (I'm not),
I own a SM-T510 Samsung Galaxy Tab A 10.1 WiFi.
It all started when I tried to flash Nexus and it worked partially, but I didn't gain access to my internal storage for some reason, so I reverted back to stock rom.
Then for some reason part of the nexus rom was still there, but I was afraid of damaging my device further.
For some reason, netflix wasn't working, so I tried to apply a software update to my device using Smart Switch.
The update didn't work and I was caught in a Nexus bootloop. I entered download mode and I tried flashing twrp using odin. I thought it worked until I realised that it wouldn't get past the teamwin screen.
I re-entered download mode and there it gave me an option to factory reset the device while locking the bootloader. This is where I screwed up as I thought what else could possibly happen to my device?
SO I locked my bootloader and whatever I did I couldn't get out of download mode. AND here I screwed up even more. I tried to flash the stock ROM again using odin as a last resort but it just wouldn't complete after 10 minutes, so I closed Odin and restarted my device and here I am, stuck in a screen that says, "An error has occurred while updating the device software. Use the Emergency recovery function in the Smart Switch PC software." Now obviously this wouldn't work because my device isn't even listed there. But to note, my device is recognised by Odin and my PC.
Note: I am an absolute noobie at rooting so be easy on me.
Note 2: adb and fastboot doesn't work for me for some reason, my powershell says, "The term 'fastboot' is not recognized as the name of a cmdlet, function, script file, or operable program.
Check the spelling of the name, or if a path was included, verify that the path is correct and try again."
Thank you all for any help. I am at my wit's end.

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