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

failed - remote 39 - flashing lock flag is locked. please unlock it first

The error is politely telling you exactly what to do: unlock the flashing capability before attempting any write operations. failed - remote 39 - flashing lock flag is locked

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." For MediaTek and Spreadtrum (Unisoc) devices, replacing the

For MediaTek and Spreadtrum (Unisoc) devices, replacing the bootloader with an engineering version can bypass the lock flag check. This is risky and may brick your device. (You need an unlock code previously obtained from

Huawei discontinued official bootloader unlocking, but for legacy devices:

fastboot oem unlock UNLOCK_CODE

(You need an unlock code previously obtained from Huawei’s website.)