Help with USB and ODIN - Samsung Galaxy S8+ Questions & Answers

Hi all,
I have my S8+ (g955f) and I want to update from CRAP to CRP7. I've downloaded the latest ODIN as well as the update files for my phone. When I enter Download mode (recovery mode) the USB will not be detected in any PC that I have (tried multiple cables and ports too just in case). However it is fully detected and usable when its running in normal boot mode (so cable is ok as well as ports, etc). Can anyone help?
When I enter recovery mode (power+vol up+bixby) it says installing system update, then no command. Then it enters recovery mode. It will not allow me to enter bootloader mode (reboots into android). I have wiped the system, cache and tried again, but nothing.
Help!
Thanks!
edit:
Just to add, windows doesnt seem to make any usb detected sounds and nothing is showing up in device manager at all (in known or unknown form). I have installed the latest samsung usb drivers too.

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Hi all, really need your help. I tried to replace CWM with TWRP using RASHR. The result was that my tablet now won't go into recovery or go past the Samsung 10.1 boot screen. I can go into Download mode, but it doesn't want to connect to my computer. If I connect it to my mac and do "ADB Devices" it doesn't list the device and Heimdall won't find it either. If I connect it to my old PC, it simply pops up as "USB Device Not Recognised". I do have the correct drivers installed and I have connected to it in the past successfully on Download mode on both computers. I am wondering if USB Debugging is not selected on the tablet, but no way to boot to find out. I have tried multiple USB ports. Anyway, can anyone help me get my tablet back? Thanks so much.
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Code:
ODIN Mode
PRODUCT NAME: GT-P5110
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I was running CM 12 on it. Thanks again
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[Completed] galaxy s3 soft brick? can boot into recovery but not into download mode

hello, I searched but cannot seem to find this situation.
Phone stops at first samsung logo that shows model no and goes no further.
SD card is formatted and there is nothing on it (no backups).
I can boot into recovery (not always), but not download mode. There is nothing available in recovery as card is formatted.
I normally use linux, but used odin in windows.
USB drivers are ok except mtp connection to phone via usb. Phone is recognized as Samsung Android device. I used developer usb drivers and not kies; Should I have used kies.
If someone could point me to a thread that'd be ideal for this situation, I'd appreciate it.
edit:
every once in a while I can log into download mode or recovery. Phone keeps restarting and I have to remove the battery to turn it off and then enter download or recovery.
I can't seem to get the windows drivers to work as the phone is in either booting or in download mode when installing drivers.
kjarak said:
hello, I searched but cannot seem to find this situation.
Phone stops at first samsung logo that shows model no and goes no further.
SD card is formatted and there is nothing on it (no backups).
I can boot into recovery (not always), but not download mode. There is nothing available in recovery as card is formatted.
I normally use linux, but used odin in windows.
USB drivers are ok except mtp connection to phone via usb. Phone is recognized as Samsung Android device. I used developer usb drivers and not kies; Should I have used kies.
If someone could point me to a thread that'd be ideal for this situation, I'd appreciate it.
edit:
every once in a while I can log into download mode or recovery. Phone keeps restarting and I have to remove the battery to turn it off and then enter download or recovery.
I can't seem to get the windows drivers to work as the phone is in either booting or in download mode when installing drivers.
Click to expand...
Click to collapse
OP has already posted in the correct section:
http://forum.xda-developers.com/galaxy-s3/help/soft-brick-t3408861
Thread closed.

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