Install Same Region Firmware

This page uses one example: installing the original China firmware on a China Yoga Pad Pro AI.

You can do this even if a different-region firmware is currently installed.

You can start once the device is connected in USB debugging mode or Bootloader mode. See Connecting a Device for help.

In the sidebar, click Flash Firmware and follow the wizard.

01 / Region

Region

You may not see this screen

When the wizard opens, LTBox looks up the sale area registered to the device's serial number, preselects PRC or ROW from it, and goes straight to Flash Target. This screen appears only when that lookup cannot decide: there is no serial to read (the device is not connected over ADB or the bootloader), the lookup fails, or the sale area is neither China nor global. When no serial is available LTBox asks you to type one in — dismiss that prompt to choose by hand. A model sold only in China is preselected as PRC without any lookup.

Choose your device's original hardware region, no matter which firmware is currently installed. In this example it is PRC. The region can still be changed from the Confirm screen.

Select Device Region step in the LTBox wizard
Select the device's original region.

02 / Target

Flash Target

Compare the device's original region with the firmware region. In this example, the regions are the same, so choose Install same region firmware.

Select Flash Target step in the LTBox wizard
Same region on both sides, so pick the same-region target.

03 / Data

Data Mode

Choose whether to keep or erase user data. When the installed firmware region and the target firmware region are different, you must choose Wipe Data. Even for the same region, you should usually Wipe Data when downgrading, or the device may fail to boot.

Select Data Mode step in the LTBox wizard
Keep Data or Wipe Data.

04 / Country

Country Code

After you choose Wipe Data, LTBox opens a Country Code Change dialog over the Firmware Folder step. Usually pick the country where you live — it mainly controls which Wi-Fi channels are allowed and does not change much else. Choose Do not change to leave the current code alone. You can still adjust it later on the Confirm step.

Country Code Change dialog in the LTBox wizard
Pick the country code for the region you are restoring.

05 / Folder

Firmware Folder

Select the folder that contains the firmware images. In this example it is the TB520_ZUXOS_1.5.10.186_Tool\image folder.

Select Firmware Folder step in the LTBox wizard
Point LTBox at the folder holding the firmware images.

06 / Confirm

Confirm

Check the options you selected, then click Start. The task begins and the device reboots several times as needed.

Confirm step in the LTBox wizard
Review every option before starting.

07 / Flash

Flash

The Flash firmware partitions step takes the longest. You can click Show log to see more detailed progress.

LTBox executing the flash steps
Flashing partitions is the longest step.

08 / Done

Done

When it finishes, the Yoga Pad Pro AI boots with its original China firmware installed.