Hm-10 ble device not working

Hii... I faced a peculiar problem while trying to configure my AT-09 BLE Device's baud rate. I used the AT+BAUD2 which has set it to a baud rate of 2400 but now when I run any AT+ Command it prints ERROR twice on the console. But when I just use AT to check the connection the device returns ok. What might be the cause of this problem can anyone please help?