Sony FDR-AX55 Manual page 220

Follow the steps from 2 on "If you have problems."
(Battery level warning)
The battery pack is nearly used up.
Depending on the operating environment or battery conditions,
about 20 minutes of power remaining.
(Warning indicator pertaining to the temperature of this
product/battery pack )
The temperature of the product/battery pack is high. In this case, leave the power off and
wait until the temperature of the product/battery pack goes down.
(Warning indicator pertaining to memory card)
Slow flashing
Free spaces for recording images are running out.
No memory card is inserted.
Fast flashing
There is not enough free spaces for recording images. After storing the images on other
media, delete unnecessary images, or format the memory card.
The image data base file may be damaged. Check the data base file by selecting
[Setup] - [ Media Settings] - [Repair Img. DB F.] - the recording medium.
The memory card is damaged.
When you record movie with [
card of UHS-I U3 or faster.
(Warning indicator pertaining to memory card formatting)
The memory card is damaged.
The memory card is not formatted correctly.
(Warning indicator pertaining to incompatible memory card)
Incompatible memory card is inserted.
(Warning indicator pertaining to the write-protect of the
memory card)
The memory card is write-protected.
Access to the memory card was restricted on another device.
(Warning indicator pertaining to the external device)
The image data base file may be damaged. Check the data base file by selecting
[Setup] - [ Media Settings] - [Repair Img. DB F.] - the recording medium.
The external device is damaged.
(Warning indicators pertaining to external device formatting)
The external device is damaged.
The external device is not formatted correctly.
(Warning indicator pertaining to camera-shake warning)
REC Mode] set to [100Mbps
may flash even with
], use an SDXC memory
-
-