ZTE One Key Upgrade Tool (Z730V1.0.0B19 to B20) for TMO 1.0

ZTE One Key Upgrade Tool (Z730 V1.0.0B19 to B20) for TMO is a Windows-based utility that performs a streamlined, one-click firmware update on the ZTE Z730 (T‑Mobile variant). It upgrades devices running software version V1.0.0B19 to V1.0.0B20, delivering a maintenance release intended to improve overall stability and address known issues. Designed for simplicity, the tool guides you through the process and handles the flashing steps automatically.

Key points:

• Device compatibility: ZTE Z730 (T‑Mobile/TMO) currently on software build V1.0.0B19
• Update target: V1.0.0B20 firmware
• Platform: Windows PC with an available USB port and administrator rights
• Connectivity: Requires a reliable USB cable and ZTE USB drivers (may install automatically or be provided with the tool)

Before you begin:

• Back up your data. Although many updates complete without data loss, firmware upgrades can sometimes reset the device.
• Charge the phone to at least 50%.
• Use the original or a high‑quality USB cable and avoid USB hubs.

How to use:

1. Install and launch the One Key Upgrade Tool on your Windows PC.
2. Connect the ZTE Z730 (T‑Mobile) to the PC via USB and wait for drivers to finish installing.
3. Follow the on‑screen instructions to start the upgrade from B19 to B20.
4. Do not disconnect the device until the tool confirms completion and the phone reboots.

Notes:

• This package is intended only for the T‑Mobile ZTE Z730 and the specified source and target versions. Do not use it on other models, carriers, or firmware builds.
• If the device is modified (e.g., rooted or with custom recovery), the upgrade may fail or cause issues. Use at your own risk.

ZTE One Key Upgrade Tool (Z730V1.0.0B19 to B20) for TMO is developed by ZTE Corporation and is used by 1 user of Software Informer. The most popular version of this product among our users is 1.0. The name of the program executable file is ZTE Z730 One Key Upgrade Tool for TMO.exe.

You can check ZTE Dialer, TOSHIBA Upgrade Assistant, Pantech Burst OS Upgrade Tool and other related programs like Acer Upgrade Assistant Tool at the "download" section.