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Original topic:

Galaxy S7 SM-930F - looping on logo

(Topic created on: 01/10/20 00:40)
Members_fnjcsFu
First Poster
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Hello, 

This evening, I've deleted pictures on my phone and it suddenly froze.

I tried a reboot with "Power + Volume-" and it stays on Samsung Galaxy S7 powered by android for a long time.

 

After that I always have light blue screen with "Installing system update" and then after few minutes I have a black screen with these lines:

 

#Fail to open recovery_cause (No such file or directory)#
#Reboot Recovery_Cause is [UNKNOWN]#
No Support SINGLE-SKU

File-Based OTA
E:failed to mount /efs (invalid argument)
Supported API: 3
E:failed to mount /efs (invalid argument)
E:failed to mount /efs (invalid argument)
dm-verify verification failed ...
E:failed to mount /cache (invalid argument)
E:failed to mount /cache (invalid argument)
E:failed to mount /cache (invalid argument)
E:Can't mount /cache/recovery/last_locale

 

 

When I do "Volume+  + Home +  Power" nothing is happening. I cannot have the SAMSUNG logo thingy.

It seems also that I cannot power off the device.

I have also removed my sd card.

 

Any idea how to fix that issue? 

 

Thanks for your help.

 

 
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6 REPLIES 6
aklima
Smooth Operator
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Hello,
please have a look on YouTube as it helps. I had a similar problem and it fixed. For deleted pictures it should be on ur recycle bin.
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Members_fnjcsFu
First Poster
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I already looked over a lots of video etc, I cannot enter in Download mode because the manipulation to do so is not working on the first screen..

Thanks but I cannot access the bin since my smartphone is looping..

 
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aklima
Smooth Operator
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https://youtu.be/EBOZjESB6dM

Have u checked this one
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Members_fnjcsFu
First Poster
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yes it doesn't fix my problem

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tothgeri
New Member
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Hello 
Did you find a solution to the problem?
Unfortunately, the same thing happened to me on my phone.
Gergo

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TessM
Moderator
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Hey @Members_fnjcsFu  and @tothgeri ,

 

it seems that there is an issue with the phone software and we would advise contacting Support to get an examination arranged so our engineers can fix this. You can find their contact details here: https://www.samsung.com/uk/support/

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