some issue with device

Question

i have few question based on nordic i am using N51822. 
 1: does device goto sleep, while testing i see sometimes device gets automatically disconnected. 
 how can i solve this. 
 if there is sleep time how can i change it. 
 2: is there any way to debug device setting 
 3: how can i change device setting like name and other parameters 
 Please guide 
 i have attached android code of it 
 files.rar 
 Below is log from my device : 
 
 07-04 08:43:26.384 D/tecnogem
connected running-->( 5675): yes 
 07-04 08:43:26.384 D/tecnogem synch
running-->( 5675): rrrr 
 07-04 08:43:27.889 W/bt-btif ( 2401):
bta_gattc_conn_cback() - cif=3
connected=0 conn_id=3 reason=0x0008 
 07-04 08:43:27.889 W/bt-btif ( 2401):
bta_gattc_conn_cback() - cif=4
connected=0 conn_id=4 reason=0x0008 
 07-04 08:43:27.889 W/bt-btif ( 2401):
bta_gattc_conn_cback() - cif=5
connected=0 conn_id=5 reason=0x0008 
 07-04 08:43:27.889 E/bt-btm ( 2401):
btm_sec_disconnected - Clearing
Pending flag 
 07-04 08:43:27.892 W/bt-l2cap( 2401):
L2CA_SetDesireRole() new:x0,
disallow_switch:0 
 07-04 08:43:27.892
D/BtGatt.GattService( 2401):
onDisconnected() - clientIf=5,
connId=5, address=E8:60:71:E6:2B:94 
 07-04 08:43:27.893 D/BluetoothGatt(
5675): onClientConnectionState() -
status=8 clientIf=5
device=E8:60:71:E6:2B:94 
 07-04 08:43:27.894
I/BluetoothLeService( 5675):
Disconnected from GATT server. 
 07-04 08:43:27.898
D/BluetoothMapService( 2401):
onReceive 
 07-04 08:43:27.898
D/BluetoothMapService( 2401):
onReceive, action
android.bluetooth.device.action.ACL_DISCONNECTED 
 07-04 08:43:27.905
D/BluetoothLeService( 5675): Trying to
use an existing mBluetoothGatt for
connection. 
 07-04 08:43:27.918
D/BtGatt.GattService( 2401):
clientConnect() -
address=E8:60:71:E6:2B:94,
isDirect=false 
 07-04 08:43:27.919 D/BtGatt.btif(
2401): btif_get_device_type: Device
[e8:60:71:e6:2b:94] type 2, addr. type
1 
 07-04 08:43:27.919 E/bt-att ( 2401):
device already in iniator white list 
 07-04 08:43:27.930 I/Coffee -
BluetoothConnectionTracker( 2097):
Bluetooth disconnection broadcast for
H1-mini-I 
 07-04 08:43:27.930 I/Coffee -
DevicePreferencesUtils( 2097): Failed
to find BluetoothDevice.isEncrypted
private API. 
 07-04 08:43:27.935
V/BluetoothFtpService( 2401): Ftp
Service onStartCommand 
 07-04 08:43:27.935
V/BluetoothFtpService( 2401): PARSE
INTENT action:
android.bluetooth.device.action.ACL_DISCONNECTED 
 07-04 08:43:27.940
V/BluetoothSapReceiver( 2401):
SapReceiver onReceive 
 07-04 08:43:27.940
V/BluetoothSapReceiver( 2401): action
= android.bluetooth.device.action.ACL_DISCONNECTED 
 07-04 08:43:27.941
V/BluetoothSapReceiver( 2401): Calling
SAP service start service with action
= null 
 07-04 08:43:27.944
V/BluetoothSapService( 2401): action:
android.bluetooth.device.action.ACL_DISCONNECTED 
 07-04 08:43:27.945
V/BluetoothSapService( 2401): state:
-2147483648 
 07-04 08:43:27.947 I/Coffee -
BluetoothTrustlet( 2097): Device
Micromax A74 is not allowed because it
is either insecure or of unknown
security and needs user confirmation 
 07-04 08:43:27.952
D/BluetoothDunService( 2401):
parseIntent: action:
android.bluetooth.device.action.ACL_DISCONNECTED 
 07-04 08:43:27.958
I/notification_cancel( 711):
[1002,2401,com.android.bluetooth,2,NULL,0,0,64,8,NULL] 
 07-04 08:43:27.961
I/BTConnectionReceiver( 3389):
onReceive(context, Intent {
act=android.bluetooth.device.action.ACL_DISCONNECTED
flg=0x4000010
cmp=com.google.android.googlequicksearchbox/com.google.android.search.core.service.BluetoothConnectionReceiver
(has extras) }, [BluetoothDevice:
address=E8:60:71:E6:2B:94, alias=null,
name=H1-mini-I, majorDeviceClass=2304,
deviceClass=2336] 
 07-04 08:43:27.963
I/notification_cancel( 711):
[1002,2401,com.android.bluetooth,3,NULL,0,0,64,8,NULL] 
 07-04 08:43:27.964
I/BluetoothClassifier( 3389):
Bluetooth Device Name: H1-mini-I 
 07-04 08:43:27.964
I/notification_cancel( 711):
[1002,2401,com.android.bluetooth,8,NULL,0,0,64,8,NULL] 
 07-04 08:43:27.965
I/notification_cancel( 711):
[1002,2401,com.android.bluetooth,151,NULL,0,0,64,8,NULL] 
 07-04 08:43:27.996
I/notification_cancel( 711):
[1002,2401,com.android.bluetooth,-1000005,NULL,0,0,64,8,NULL] 
 07-04 08:43:27.996
I/notification_cancel( 711):
[1002,2401,com.android.bluetooth,-1000006,NULL,0,0,64,8,NULL] 
 07-04 08:43:28.025 I/am_proc_start(
711):
[0,6455,10096,com.skype.raider,broadcast,com.skype.raider/com.skype.android.audio.BluetoothReceiver] 
 07-04 08:43:28.025 I/ActivityManager(
711): Start proc com.skype.raider for
broadcast
com.skype.raider/com.skype.android.audio.BluetoothReceiver:
pid=6455 uid=10096 gids={50096, 9997,
3003, 3002, 1028, 1015} abi=armeabi 
 07-04 08:43:28.054 I/am_proc_bound(
711): [0,6455,com.skype.raider] 
 07-04 08:43:28.102 I/LoadedApk( 6455):
No resource references to update in
package common 
 07-04 08:43:28.102 I/LoadedApk( 6455):
No resource references to update in
package com.cyngn.yu 
 07-04 08:43:28.102 I/LoadedApk( 6455):
No resource references to update in
package com.cyngn.yu 
 07-04 08:43:28.384 D/BluetoothGatt(
5675): readRssi() - device:
E8:60:71:E6:2B:94 
 07-04 08:43:28.387
D/BtGatt.GattService( 2401):
readRemoteRssi() -
address=E8:60:71:E6:2B:94 
 07-04 08:43:28.388
D/BluetoothLeService( 5675): Trying to
use an existing mBluetoothGatt for
connection. 
 07-04 08:43:28.389
D/BtGatt.GattService( 2401):
clientConnect() -
address=E8:60:71:E6:2B:94,
isDirect=false 
 07-04 08:43:28.389 D/BtGatt.btif(
2401): btif_get_device_type: Device
[e8:60:71:e6:2b:94] type 2, addr. type
1 
 07-04 08:43:28.389 E/bt-att ( 2401):
device already in iniator white list 
 07-04 08:43:28.389 D/tecnogem
connected running-->( 5675): no