Samsung S7 edge download mode unavailable

[Alireza Farjad]

When I try to use the combination of volume down + home + power key to enter download mode it fails. As long as I push the keys down, nothing will happen and as soon as I release them my phone will restart and then go to "installing system update" and after a while it also fails with "no comment" error. The whole process start again. I can't turn off the phone. As long as there is battery it will go through this loop. Naturally there is no access to other modes like safe mode or recovery mode and there is no way to enter the android OS.

 

[mustang7757]

"When I tick BL in Odin it will pass, when I tick BL and AP it gives me write operation failed error. When I remove AP but tick CP it gives me "can't open the serial com port" error."
So you don't know the common reasons behind these errors?

You need to flash all 4 files not one at a time
Can't open serial com , make sure try another USB slot or cable (good quality cable I can't stress enough on that must be used )

 

[mustang7757]

If phone don't go in download mode it won't flash

 

[Alireza Farjad]

You need to flash all 4 files not one at a time
Can't open serial com , make sure try another USB slot or cable (good quality cable I can't stress enough on that must be used )

I explained in details that I did all four slots together first and what I did next was to find the source of the error.

 

[mustang7757]

You have error in Odin for com
Possiblity.

Cable
USB port
Computer used
Not in download mode


Look over those 4 or it will never let you flash successfully, Im going by what your explaining to me . If you like post some screenshots

 

[MNMobileGuy]

I did the same way you mentioned but right now I encounter write operation error and I don't know why.

This is very vague. You need to either provide a picture or screenshot of the Odin log, or show us any error message in red that appeared on the device itself

To make it worse a new error appeared on my phone screen which should be solved first before I can try Odin again. It says
"An error has encountered while updating the device software. Use the emergency recovery function in the smart switch PC software."
I installed Smart Switch on my laptop but it can't recognise the phone.
It says "device needs time to initialise if it has been restarted." But there is no initialisation when there is no booting or anything. It just stuck on this error as soon as I connect the phone to power or to the laptop and it doesn't go any further.

This screen works the same as Download mode. Odin will detect it while in this mode and you can flash firmware, just like regular Download mode.

Also, after a failed flash, you need to reboot it back to Download mode in order to try again - you cannot just simply click Start in Odin again. That's probably the reason for the "can't open the COM port" error

 

[mustang7757]

This is very vague. You need to either provide a picture or screenshot of the Odin log, or show us any error message in red that appeared on the device itself

This screen works the same as Download mode. Odin will detect it while in this mode and you can flash firmware, just like regular Download mode.

Also, after a failed flash, you need to reboot it back to Download mode in order to try again - you cannot just simply click Start in Odin again. That's probably the reason for the "can't open the COM port" error

Exactly

 

[Alireza Farjad]

This is very vague. You need to either provide a picture or screenshot of the Odin log, or show us any error message in red that appeared on the device itself

This screen works the same as Download mode. Odin will detect it while in this mode and you can flash firmware, just like regular Download mode.

Also, after a failed flash, you need to reboot it back to Download mode in order to try again - you cannot just simply click Start in Odin again. That's probably the reason for the "can't open the COM port" error

Thank you. I didn't know Odin can detect it even though I'm not on download mode. Now I regained my access to download mode by using "BL" in Odin.


Here is my Odin log.
Do I need to give writing permission in some way?

 

[Alireza Farjad]

When I'm not connected to Odin my phone stays on this page.

 

[mustang7757]

Try latest odin 3.14 and up

 

[Alireza Farjad]

Try latest odin 3.14 and up

It's the same error message.

 

[mustang7757]

Try with Odin patch B version

 

[Alireza Farjad]

Try with Odin patched B version

I can't find patch B version but there is a patched D "Odin3 v3.14.1_3B_PatcheD" is that correct?

 

[mustang7757]

I can't find patch B version but there is a patched D "Odin3 v3.14.1_3B_PatcheD" is that correct?

View attachment 347870

Yeah that's the one

 

[Alireza Farjad]

This is very vague. You need to either provide a picture or screenshot of the Odin log, or show us any error message in red that appeared on the device itself

Is there something I could try?

 

[MNMobileGuy]

Is there something I could try?

Odin is failing on flashing boot, which is the kernel. When Odin fails, an error message in red should appear on the Downloading screen, below all of the other colored text. Post a picture of it

 

[Alireza Farjad]

Odin is failing on flashing boot, which is the kernel. When Odin fails, an error message in red should appear on the Downloading screen, below all of the other colored text. Post a picture of it

But there is not any error msg on my phone screen when it fails.

 

[MNMobileGuy]

But there is not any error msg on my phone screen when it fails.

Then I don't have any suggestions other than trying to flash a different firmware

 

[mustang7757]

But there is not any error msg on my phone screen when it fails.

Recap , are you using Frija tool for firmware?
It can also be possible your using a firmware below yours which wouldn't flash , also try different Odin like mentioned

 

[Alireza Farjad]

Then I don't have any suggestions other than trying to flash a different firmware

What about DroidKit or iMyFone Fixppo for Android? Do you suggest to try them too?

 

[Alireza Farjad]

Then I don't have any suggestions other than trying to flash a different firmware

Also when I use FriJa it always gives me the same file to download as long as I choose the same model. CSC and manual settings need details which I can't have access when phone is off. I chose CSC according to country but the rest is blank.