Failed -remote 39-flashing Lock Flag Is Locked. Please Unlock It First 39--
Here’s a clear, helpful explanation of that error message, broken down for users or support documentation.
The "Failed -Remote 39:Flashing Lock Flag is Locked. Please Unlock it First" error is a frustrating issue that can occur when trying to flash or update firmware on certain devices, particularly those with a Qualcomm or similar chipsets. This error message indicates that the flashing process is blocked due to a locked flag, preventing any further actions. In this article, we will delve into the causes of this error, its implications, and most importantly, provide a step-by-step guide on how to resolve it. Here’s a clear, helpful explanation of that error
Part 4: Prerequisites Before You Attempt to Unlock
The error: create paper: failed -remote 39-flashing lock flag is locked. please unlock it first Google Pixel (with fastboot flashing lock/unlock ) Xiaomi
Locked Bootloader
: Most devices ship with a locked bootloader to ensure the device remains in a state produced by the manufacturer (OEM). Warning: This will perform a factory reset and
Security Protocol
: The device rejects "flashing" commands because it hasn't been authorized to accept unofficial or modified images.
Failed -remote 39 — flashing lock flag is locked. Please unlock it first 39--
- Google Pixel (with
fastboot flashing lock/unlock) - Xiaomi (requires Mi Unlock tool)
- OnePlus (uses
fastboot oem unlock) - MediaTek-based phones (often have a “lock flag” in preloader or bootloader)
- Samsung (uses KG state and OEM lock)
Warning: This will perform a factory reset and erase all data on your device
Once the device is in Fastboot mode and connected to your PC, use the following commands. .