Once you select a sleep period, the system returns to the main menu.
Press Menu to return to the Now playing screen.
14. Software upgrades and factory reset
14.1 Software upgrade
From time to time, M4+ may make software upgrades available with bug
Fixes and/or additional features. You can either check manually, or set M4+ to
check periodically automatically (this is the default). If M4+ detects that
newer software is available, it asks if you want to go ahead with an update.
If you agree, the new software is then downloaded and installed. After a
software upgrade, all user settings are maintained.
CAUTION: Before starting a software upgrade, ensure that M4+ is
plugged into a stable mains power connection. Disconnecting power
during a software update may permanently damage the unit.
To turn automatic checking on or off, select Menu > System
settings>Software update >Auto-check setting.
14.2 Factory reset
A factory reset resets all user settings to default values, so time/date, network
configuration and presets are lost. However, the radio's current software
version is maintained, as is registration with the Internet radio portal. Internet
radio favorites therefore remain unless you re-register your radio with another
account on the portal website.
To perform a factory reset, select Menu > System settings > Factory reset
proceed >Yes.
15. Troubleshooting and error messages
15.1 Error messages
Example
MAC filtering enabled on
Received.wma,but found
Data obtained from server
Router switched off
Streaming IR station and
suddenly station becomes
unavailable
that the stream wasn't WMA
is unreadable.
when trying to decode
when trying to decode
Description
Correct key entered,
But router rejects request
Cannot recognise file format
Problem past router -
Problem with connection to
Problem past router – no
No UPnP servers found
No DAB reception
Trying to access USB menu,
UPnP server settings
Allow access for M4+ in
UPnP server
but no USB plugged in
Access not granted by
Software upgrade failed
plugged in.
Unsupported USB device
General USB problems
USB
USB device
device
Bad memory sector found on
-independent of network
incorrect data being
router
response being received
received from network
from network
from network
Messege
Failed to connect
Format error
Network error
Network not ready
Network timeout
No UPnP media
Service not
No USB device
Unauthorised
Update failed
unsupported
USB device
data from memory
user have to remove the
Unable to read particular
Power failure to USB device-
USB read error
underpowered
USB error
available (DAB)
found
found
router
35 of 38
34 of 38
Waiting for Users
Spotify mode - No Spotify
account credentials
available on the M4+
audio system. Connect to
the audio system using a
Spotify Connect account.
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