harmony 鸿蒙Bluetooth Error Codes
Bluetooth Error Codes
NOTE
This topic describes only module-specific error codes. For details about universal error codes, see Universal Error Codes.
2900001
Error Message
Service stopped.
Description
The Bluetooth service is stopped, and the APIs related to the Bluetooth service cannot be called.
Possible Causes
The Bluetooth service fails to start.
Solution
Start the Bluetooth service.
2900003
Error Message
Bluetooth switch is off.
Description
Bluetooth is disabled.
Possible Causes
Bluetooth is disabled.
Solution
Enable Bluetooth.
2900004
Error Message
Profile is not supported.
Description
The profile is not supported.
Possible Causes
The profile is not supported by the device.
Solution
Check whether the device supports the profile. Use a profile supported by the device.
2900005
Error Message
This device not connected.
Description
The device is not connected to Bluetooth.
Possible Causes
The device pairing fails.
Solution
Turn on Bluetooth again to start the pairing process.
2900006
Error Message
Max connection has reached.
Description
The number of connections reaches the maximum.
Possible Causes
The number of connections reaches the limit.
Solution
Check whether the number of paired devices reaches the threshold.
2900008
Error Message
Proxy is nullptr.
Description
pimpl or proxy is null.
Possible Causes
The device pairing fails.
Solution
Turn on Bluetooth again to start the pairing process.
2900099
Error Message
Operation failed.
Description
The operation failed.
Possible Causes
The profile is not supported by the device.
Solution
Perform this operation again.
2900100
Error Message
IPC transmit failed.
Description
IPC data transmission fails.
Possible Causes
The input data is incorrect.
Solution
Check the input data.
2901000
Error Message
Read forbidden.
Description
The read operation is not allowed.
Possible Causes
The caller does not have the read permission.
Solution
Check that the caller has the read permission.
2901001
Error Message
Write forbidden.
Description
The write operation is not allowed.
Possible Causes
The caller does not have the write permission.
Solution
Check that the caller has the write permission.
2901054
Error Message
IO error.
Description
The I/O operation failed.
Possible Causes
The I/O transmission is abnormal.
Solution
Perform the operation again.
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