Failed -remote 39-flashing Lock Flag Is Locked. Please Unlock It First 39-- High Quality Today

In essence, the device is saying: "I see you want to flash something, but my security says no. Go through the official unlocking process first."

Unlocking the bootloader forces a factory reset. You will lose all files.

The error occurs when you attempt to flash custom firmware or system images onto an Android device while the bootloader is locked . The bootloader is a security layer that prevents unauthorized tampering with the system. Why This Error Happens

Find the and tap it continuously 7 times until a toast message says "You are now a developer!"

Here’s a clear, helpful explanation of that error message, broken down for users or support documentation. In essence, the device is saying: "I see

using the device’s specific method:

To fix this error, you must successfully change the state of your device from LOCKED to UNLOCKED using standard Android developer utilities. Step 1: Enable Developer Options and OEM Unlocking

Would you like this converted into a formatted PDF or tailored to a specific device/model or flashing tool?

Power off the device, then hold Power + Volume Down (common for most devices) until the Fastboot logo appears. 3. Run the Unlock Command The error occurs when you attempt to flash

Go back to the main Settings menu, open (or Additional Settings ), and select Developer Options . Locate USB Debugging and toggle it ON .

You must retrieve a unique unlock string via Fastboot using fastboot oem get_unlock_data . You then paste this string into Motorola's official developer website to receive an unlock key via email. Google Pixel / OnePlus

By default, retail electronic devices ship with a locked bootloader. The bootloader acts as a security checkpoint that runs cryptographic checks on device partitions (like system , boot , and vendor ) before letting the device start up.

Poor error handling and lack of user-friendly unlock instructions. Avoid if you value your time. using the device’s specific method: To fix this

is still locked. Android prevents any unauthorized changes to system partitions unless you explicitly "unlock" this security flag first. ⚠️ Warning Unlocking your bootloader will factory reset your device and wipe all data . Back up everything before you begin. How to Fix the "Flashing Lock" Error Step 1: Enable Settings in Android

Tap (or MIUI Version on Xiaomi) 7 times to enable Developer Options.

It sounds like you’re seeing an error message from a printer, copier, or multi-function device (like a Canon, HP, Xerox, or Ricoh), rather than an issue with creating a paper document in software.