Stuck in bootloader - Android Q&A, Help & Troubleshooting

Hi, I have a galaxy A5(6). Maybe it's counterfeit because I want not able to get into the download mode. I used a program called Samsung 300K Tool that did the job. After flashing a combination rom, t failed coz I selected the wrong one.
Now it states with the error SV REV CHECK FAIL. I know what it means the problem is I can't reboot or do anything.
I used all the possible combinations and still stays the same. No other messages on screen.
Tried:
V- , V+ , Home, power
Power, V-, V+
Power, V-, Home
Power, V+, Home
Power , V-
Power, V+
etc
My device atm is recognized nor in ODIN, neither in ADB.
Any advice.
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readymade said:
Hi, I have a galaxy A5(6). Maybe it's counterfeit because I want not able to get into the download mode. I used a program called Samsung 300K Tool that did the job. After flashing a combination rom, t failed coz I selected the wrong one.
Now it states with the error SV REV CHECK FAIL. I know what it means the problem is I can't reboot or do anything.
I used all the possible combinations and still stays the same. No other messages on screen.
Tried:
V- , V+ , Home, power
Power, V-, V+
Power, V-, Home
Power, V+, Home
Power , V-
Power, V+
etc
My device atm is recognized nor in ODIN, neither in ADB.
Any advice.
Click to expand...
Click to collapse
Hi there,
You are right about one thing there are a lot of counterfeit Samsung phones,
However, you can try one thing that is to drain the battery completely.
Or
You can try and use Samsung Kiev to restore your phone since the phone is in download mode.
Try and use another pc it might work.
Or you can just search it on Google (how to fix the problem your facing).
Sincerely
KIBS2173
!!!!!!!!!!!!!!!!!!!!!!! I AM NOT RESPOSIBLE IF YOU DEVICE GOT BRICKED OR DAMAGED IN ANY WAY !!!!!!!!!!!!!!!

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readymade said:
Hi, I have a galaxy A5(6). Maybe it's counterfeit because I want not able to get into the download mode. I used a program called Samsung 300K Tool that did the job. After flashing a combination rom, t failed coz I selected the wrong one.
Now it states with the error SV REV CHECK FAIL. I know what it means the problem is I can't reboot or do anything.
I used all the possible combinations and still stays the same. No other messages on screen.
Tried:
V- , V+ , Home, power
Power, V-, V+
Power, V-, Home
Power, V+, Home
Power , V-
Power, V+
etc
My device atm is recognized nor in ODIN, neither in ADB.
Any advice.
Click to expand...
Click to collapse
firmwares have security versions like this
A510fXXF(U)OR(S)OR(D)(1,2,3,4,5,6)RF1
EXMPLE:A510FXXFU3RF1
NOW YOU SHOULD SEARCH AND FIND LATEST FIRMWARE WITH LATEST SECURITY PATCH
IF IN YOUR SCREEN SAID : SW REV.CHECK FAIL, DEVICE = 4 ,BINARY = 3
YOU SHOULD DOWNLOAD FIRMWARE WITH BINARY SAME OR HIGHER THAN 4
EXP: A510FXX(U4)OR(S5)RF1