use ODIN-W2, after connecting and disconnecting the Bluetooth device, it can not be newly connected. why?

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There is a symptom that the Bluetooth device becomes unable to connect anew, and it can not be solved.
Many will occur when two to three units are connected.
In that state, the surrounding Bluetooth device can not be found with AT + UBTI, and if you try to connect a new device, ODIN will restart.
In addition, it seems that you can communicate with the device whose connection was established when symptoms occurred. (Received data was obtained by sending command.)
Once it occurs, symptoms do not improve even if factory reset is done.
Before symptoms occurred, what we did was connecting and disconnecting Bluetooth devices. (Connect with AT + UDCP, disconnect with AT + UDCPC.)
ODIN is Ver 6.0.1-004.
It also occurred in Ver 5.0.1.


English LINE Command / Message Log
AT+UBTI (1 to 4 lines) with six connected units 1 AT+UBTI
  3 +UBTI:000780083F2Cp,-45,100100,"LR8513#140747115"
  4 OK
Connect the seventh unit (lines 5 to 24) 5 AT+UDCP="spp://000780083F2Cp"
  7 +UDCP:7
  8 OK
  10 +UUDPD:7
  11 AT+UDCP="spp://000780083F2Cp"
  13 +UDCP:7
  14 OK
  16 +UUDPD:7
  17 AT+UDCP="spp://000780083F2Cp"
  19 +UDCP:7
  20 OK
  22 +UUBTB:000780083F2C,0
  24 +UUDPC:7,1,1,000780083F2Cp,669
7 units disconnected (lines 25 to 73) 25 AT+UDCPC=6
  27 OK
  28 AT+UDCPC=5
  30 OK
  32 +UUDPD:6
  33 AT+UDCPC=4
  35 OK
  37 AT+UDCPC=3
  39 OK
  42 +UUDPD:4
  43 AT+UDCPC=2
  45 OK
  47 +UUDPD:5
  48 AT+UDCPC=1
  50 OK
  52 +UUDPD:3
  54 +UUDPD:2
  56 +UUDPD:1
  57 AT+UDLP?
  59 +UDLP:0,com,com1
  60 +UDLP:7,spp,D4CA6E7D5985p,000780083F2Cp
  61 OK
  62 AT+UDCPC=7
  64 OK
  66 +UUDPD:7
  67 AT+UDCPC=7
  69 ERROR
  70 AT+UDLP?
  72 +UDLP:0,com,com1
  73 OK
Connect the first unit (lines 74 to 79) 74 AT+UDCP="spp://000780259932p"
  76 +UDCP:1
  77 OK
  79 +UUDPC:1,1,1,000780259932p,669
Connect the second unit (lines 80 to 85) 80 AT+UDCP="spp://000780259A71p"
  82 +UDCP:2
  83 OK
  85 +UUDPC:2,1,1,000780259A71p,669
AT+UBTI no response (lines 86 to 88) 86 AT+UBTI
  88 OK
Connecting the third unit without UUDPC (lines 89 to 95) 89 AT+UDCP="spp://00078019D48Dp"
  91 +UDCP:3
  92 OK
  93 AT+UDCP="spp://00078019D48Dp"
  95 ERROR
UUDPC None response  (96 to 99 lines) to connect the fourth unit 96 AT+UDCP="spp://0007800849E2p"
  98 +UDCP:4
  99 OK
AT+UBTI no response (100 to 102 lines) 100 AT+UBTI
  102 OK
Received STARTUP which seems to be restarted (line 104) 104 +STARTUP

Thanks All!

by okoshi asked Jan 8
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