How to unlock Bootloader/OEM in download mode?

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LieLaw

Member
Jan 19, 2018
11
1
Hi all,

I would like to ask how to unlock my bootloader while stuck in download mode?
After an unsuccessful flash of a stock firmware, I was stuck in download mode on my Samsung device and can't install any FW.

While in download mode I get the following message:
Samsung Custom binary (System) blocked by oem lock

Is there any possibility to unlock the bootloader?

Thank you
LieLaw
 

ze7zez

Recognized Contributor
Hi all,

I would like to ask how to unlock my bootloader while stuck in download mode?
After an unsuccessful flash of a stock firmware, I was stuck in download mode on my Samsung device and can't install any FW.

While in download mode I get the following message:
Samsung Custom binary (System) blocked by oem lock

Is there any possibility to unlock the bootloader?

Thank you
LieLaw
Are you sure you flash the correct firmware version for your model?
Give more details, because no one can help you if you don't help yourself.
 

LieLaw

Member
Jan 19, 2018
11
1
Are you sure you flash the correct firmware version for your model?
Give more details, because no one can help you if you don't help yourself.

Thank you for the reply. I’ll try to give all information I can.

My version on the phone was:
G887NKSU2CTI2 from the Provider KTC.

My phone was kind of broken (couldn’t update with an existing update possibility and apps closed by itself even after clean install).

So I wanted to install manually with Odin the latest stock firmware from the provider KTC: G887NKSU2CVH2.

This should be actually no problem, but the flash failed and now I can’t do anything with the phone. The only thing I can find on the internet is to open the bootloader, but I don’t know how I can do this.

I’ve uploaded a picture of how it looks like now. It’s translated because original text was korean.
 

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