Can Not Flash Due to Oem Lock Samsung

Updates to non-US versions of various Samsung devices brought a different kind of lock that may initially panic users. However, the locks are non intended to upshot development, but rather device theft – of course, such security measures always somehow effects the development community.

The lock itself is within the bootloader, but the trigger for the lock is inside the arrangement – its fairly difficult to reproduce, but it typically triggers when you insert a SIM card from another country than your firmware country version. It seems a fleck odd since people obviously travel and temporarily use SIM cards from countries they are visiting, but we're not Samsung's security experts.

What basically happens is the device will reboot and wipe data – this really won't issue people on stock ROM, despite the sudden wiping of their information only for using a SIM card from another state, simply if y'all take for example a custom binary such as a rooted kernel or TWRP, you will be prevented from booting, because the bootloader will be locked against booting on custom binaries that alter the organization.

The following Samsung devices are confirmed as having this protection method:

• Samsung Galaxy S9 & S9+ – SM-G960F & SM-G965F
• Samsung Galaxy Notation 8 – SM-N950F
• Samsung Galaxy S8 & S8+ – SM-G950F & SM-G955F
• Samsung Galaxy A8 & A8+(2018) – SM-A530F & SM-A730F
• Samsung Galaxy A Series (2017) – SM-A320F/FL, SM-A520F & SM-A720F
• Samsung Galaxy Note Iron – N935F

Once yous have been locked out of your phone, you will detect i of these symptoms:

• A message stating "Only official released binaries are immune to be flashed".
• The "OEM Unlock" choice is unavailable in the Developer Options.
• If you boot into Download Manner, information technology volition display "RMM Land = Prenormal".

Downloads:

• Samsung firmware – Updato, Sammobile, Samsung-Firmware.org, Samsung-Updates.com
• Samsung USB Drivers
• Odin
• Latest SuperSU Stable
• Latest Magisk stable
• RMM-State_Bypass
• No-Verity-Opt-Encrypt

How to Unlock

If your Samsung device is locked due to triggering the higher up described protection, your only option is to insert your state SIM, flash the latest full stock firmware (your country version) via Odin, so boot your Samsung phone.

Do not reboot the phone and do non remove the SIM – leave it continued to the network for 7 full days. Subsequently vii days of uptime, the RMM land volition reset and you should exist able to wink TWRP again. You tin can check the current uptime in Settings > Most Device > Status.

In social club to avoid existence locked again, there is a method to disable the lock protection. Yous need to flash TWRP for your Samsung device, so kicking into TWRP and flash install this fix.

You lot tin flash this nada later on flashing whatsoever custom ROM, to be sure you do not go locked. The zip has a universal script that disables the services responsible for the locking mechanism. It cannot be flashed to a device that is already locked, but if you get your device unlocked, information technology tin can be flashed to prevent a lock from happening over again.

Installing TWRP Safely

1. First you need to download the latest Odin and install the Samsung USB Drivers.
2. Yous also demand to download the latest RMM-State_Bypass ready from the Downloads section of this guide, and the latest TWRP available for your Samsung device.
3. Re-create the RMM-State_Bypass.zilch to your external SD card.
4. Become to Settings > Developer Options and enable OEM Unlock.
5. Connect your Samsung device to your PC via USB, so reboot into Download Manner.
6. Launch Odin on your PC, go to the Options menu and make certain Auto-reboot is not checked.
7. Click the AP tab in Odin, and choose the TWRP .tar file – then hit 'Start'.
8. After TWRP is flashed in Odin, you should see a green "Laissez passer!" button.

Be very careful with this adjacent steps and read thoroughly ahead.

Disconnect your Samsung from your PC, then press and concord Home + Book Down + Power until it exits Download Mode.

As soon as the screen goes black, release the Volume Down and printing Home + Book Up + Power for about 10 to fifteen seconds – this should force the device to immediately boot into TWRP. If you allow your Samsung to boot into the Android organization, information technology will become locked once again.

Once you are booted into TWRP, swipe to permit modifications, and wink the RMM-State_Bypass.zilch from TWRP Install menu.

After information technology has successfully flashed, you can now reboot into the Android system.

How to Safely Root

After your Samsung has been unlocked and TWRP is installed, follow these steps very carefully.

Download root .zip and no-verity-opt-encrypt-6.0, and copy them to your external SD card.

Boot into TWRP and allow modifications. And then go into the Wipe menu and choose "Format Data". This will erase all of your information including internal storage.

Choose "Reboot Recovery", allow modifications again, and wink RMM-State_Bypass.zero

Wink the no-verity-opt-encrypt-6.0 zip to disable the data segmentation encryption.

Now flash the root zippo, and reboot to system.

Once you are in the setup wizard, make certain to uncheck Diagnostic Information.

Kamil is a certified MCITP, CCNA (W), CCNA (S) and a sometime British Computer Society Member with over 9 years of feel Configuring, Deploying and Managing Switches, Firewalls and Domain Controllers also an old-school withal active on FreeNode.

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Source: https://appuals.com/how-to-unlock-non-us-samsung-devices-locked-by-regional-bootloader/

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