Note: The "v10025" or "V10" generally refers to the Icera firmware writing capability needed for older ZTE devices. Supported ZTE ICERA Models

The current and recommended release is v1.0026, which can be downloaded from the following link:

The following instructions assume you have already obtained the official ZTE Icera unlocker client (v1.0025 or later) and have installed the main DC‑Unlocker software on your Windows PC.

Connect your ZTE device to the PC via a clean USB 2.0/3.0 port.

: Automatically finds the correct COM ports and diagnostic interfaces for ZTE Icera hardware.

This typically occurs when the software detects that the modem is already unlocked, or when the wrong SIM card is inserted. Insert the original carrier’s SIM card (the one the modem was locked to), re‑detect the modem, and then try the unlock button again. If the button remains disabled, the modem may truly be unlocked already. Check the lock status in the detection report.

Icera (later acquired by NVIDIA) manufactured baseband processors used in various cellular devices during the 3G and early 4G eras. These chipsets utilized a distinct architecture compared to Qualcomm or MediaTek platforms. Consequently, standard unlocking tools often fail to recognize or modify Icera-powered hardware.

Once I know, I can confirm if the or another method is best for you. Share public link

Leave the model selection on or manually select your specific model if available.

: Open Windows Device Manager. Check under "Ports (COM & LPT)" to verify that the ZTE Diagnostics Port is visible. If there is a yellow warning triangle, reinstall your device drivers. Issue 2: "Unknown Error" or "Unsupported Firmware"

Note: In many cases, you may need to purchase credits on the official site to activate the unlocking feature, especially for newer or more secure firmware versions. Why Choose This Method?

This link points directly to a file hosted on the official DC‑Unlocker file server. It contains the latest ZTE Icera unlocker client. If you specifically need v1.0025 (for compatibility reasons or because you are following an older tutorial), you may be able to find archived copies on trusted technical forums. One reliable source is the Russian website , which lists an archive of DC‑Unlocker versions and specifically notes:

If you have a newer ZTE MF286D (firmware B13 or above), do not waste money on credits for v10025. Instead, download the from the official DCUnlocker website ( dc-unlocker.com/download ).