Hi Sheridan,
Usually powering off (see below), waiting 30s or so and power on again clears the Read Only message - you may have to repeat a couple of times.
If this fails then you may have to make a backup (if you haven't already got one), format the HDD and then 'Import' the backup.
We moved Format HDD to the Advanced menu as some owners were mistakenly using it and deleting all of their music. Please see these instructions from Peter Lowham -
There
is a situation where the B2 sometimes will not format directly.
I have found that the following process has worked for me.
1.
From the front panel, select 'Settings' --> 'Maintenance' -->
'Stop NAS'
2.
Select 'Settings' --> 'Maintenance' --> 'Use SD'
3.
Power the B2 down, wait 30 seconds and power up. (This step is
important)
4.
Select 'Settings' --> 'Maintenance' --> 'Advanced' -->
'Format HDD'
5.
When the format has completed select 'Settings' --> 'Maintenance'
--> 'Use HDD'
6.
Select 'Settings' --> 'Maintenance' --> 'Start NAS'
Then
your B2 will be ready to do the 'Import', all being well. If you are not using NAS then skip step 6.
To power the B2 off - with the B2 paused and displaying the clock, press and hold the Play/Stop button until 'saving' is displayed before releasing the button. Wait for the clock to be shown again before powering off.
Paul
Brennan Support.