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              FNIRSI Firmware Update
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Model: DSO-152
Version: V1.0.9
Release Date: 2026-05-15

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[ VERSION DESCRIPTION ]
- Fixed issues regarding screen rotation and factory resets

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⚠ IMPORTANT NOTES
- Do not disconnect USB during update
- Use firmware only for the correct model
- Interrupting upgrade may damage the device

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[ UPGRADE STEPS ]
1. While the device is powered off, press and hold the "Up" button, then briefly press the "Power" button to enter the firmware upgrade mode.
2. Connect the device to a computer (windows) using a USB Type-C data cable.
3. The computer will automatically recognize the device as a USB drive.
4. Simply drag and drop the firmware file into the drive. The device will automatically upgrade.
5. Once the upgrade is complete, the device will restart automatically.

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[ SYSTEM REQUIREMENTS ]
- Windows 10 / 11
- USB Data Cable (Data Transfer Supported)
- Stable Power Supply

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[ PACKAGE CONTENTS ]
- Firmware File
- README.txt
- CHANGELOG.txt

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[ SUPPORT ]
https://www.fnirsi.com
support@fnirsi.com

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