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3. How to upgrade firmware?
The M11S supports online upgrade and local upgrade.
1) Online upgrade
If a new firmware is available and can be detected (with the M11S
connected to an available internet), an upgrade notification will show
up in the notification center. Tap on it to enter the update menu for the
online upgrade. If there's no upgrade notification showing up, you can
go to the "Technical Support->Firmware Upgrade" menu, and tap the
"Check for updates" icon to check manually.
2) Local upgrade
Also, the M11S can be upgraded locally by a firmware package.
Download the firmware package file from FiiO.com, and copy it to the
internal storage of the M11S or an SD card. Go to the "Technical
Support->Firmware Upgrade->Local Upgrade" menu, and find the
firmware package file to start the upgrade.
Notes:
1) Do not unzip the firmware package file.
2) Before the upgrade, ensure the power of the device is adequate
(>30%) so to avoid upgrade failure.
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