Please read:
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Update:
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If the version of your UVR16x2’s firmware is below 1.20 and/or its bootsector below 1.05, two files are necessary on the
SD-Card: “UVR16x2_Vxxx.bin”* and “StartBSUpdate_Bxxx_UVR16x2_Vxxx”*. The update is to be initiated with the
file “StartBSUpdate_Bxxx_UVR16x2_Vxxx”*.

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Important:
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### Directory of the files:
Preferably in the SD-Card’s root directory (not in any sub-folders)
or in the directory /UPDATE/ on the SD-Card
or in the directory /UVR16x2_Vxxx/ * on the SD-Card

### Update via C.M.I.:
With a firmware version of 1.20 or above, the C.M.I. can be used for updates. To do so, drag the file “UVR16x2_Vxxx.bin” onto your UVR16x2 controller (under the tab “Data administration”).
Attention: Please update your C.M.I.’s firmware first.

### Updating versions below 1.04:
When updating a controller with a version below 1.04, the controller must receive an intermediate update to version 1.04 before updating to a higher version.

* “xxx” signifies the firmware version you are intending to update to and needs to be the same wherever mentioned.