Sm n915f no service

[2201]

Hellow Chimera team and everyone, i have SM N915F onhand with no service issue. when i first boot phone the signals come and operator name bt in few seconds it becomes no service. the signals can come back but stay for few seconds
Imei are clean, tried unlock it and unlock done bt nothing change. when i go to service mode i got this

RRCCH, Band:1
PLMN:640-4
RX:10714 RI:-95 CID 26d4d78
TX:9764 Eclo:-12 RSCP:107
L1CH PSC:143 DRX:64
Tx Pwr:10 CQI:0 sam:0
HSDP1 0, HSUPA 0,HSPA+0
AMR Undef
Speech VER :FR FR FR
therm 92 LNA:0
SIB1 None
PA STATE : 0(APT),HDET :0
NETWORK: UNBLOCK
IMEI Certi: PASS
unknown
MIPI TEST SUCCESS

These down are phone info from chimera tool


Gathering phone info...
Collecting information. Be patient! Do NOT disconnect the phone!
Model: SM-N915F
Sales Code: XSG
Country Code: UAE
Timezone: Africa/Dar_es_Salaam
Android Version: 5.0.1 [LRX22C] [SDK 21]
Build Date: Tue Apr 7 18:42:31 KST 2015
PDA Version: N915FXXU1BOD2 [april 2015, rev2]
Phone Version: N915FXXU1BOB6 [february 2015, rev6]
CSC Version: N915FOJV1BOD1 [april 2015, rev1]
Product Code: SM-N915FZKYXSG
HIDSw Version: N915FXXU1BOD2/N915FOJV1BOD1/N915FXXU1BOB6/N915FXXU1BOD2
Board Platform: APQ8084
Modem Platform: MDM9235
Serial Number: R28G3195HHZ
Imei: 358302060615851
Unique Number: CR2006057C6B412
Connections: AT,MTP
Battery Status: 3.65V (2%)
Network Type: GSM
SIM Status: NOT_READY
Knox Version: v30
Warranty Bit: 1
Data Encryption State: unencrypted

Finished successfully.
Finished at local time: [05.11.18 01:24:18]
WorkID: 37574805

Any help team/

[Shensohau]

Hi, check signal problem of device... antenna, antenna components...

[2201]

Changed Antenna many times, even when no sim card in set its No service too and no network bars

Originally Posted by Shensohau

Hi, check signal problem of device... antenna, antenna components...

[gcceleghg]

PDA Version: N915FXXU1BOD2 [april 2015, rev2]
Phone Version: N915FXXU1BOB6 [february 2015, rev6]
CSC Version: N915FOJV1BOD1 [april 2015, rev1]

Flash the phone using chimera and Serial Number: R28G3195HHZ

[2201]

Will give u feedbacks

Originally Posted by gcceleghg

PDA Version: N915FXXU1BOD2 [april 2015, rev2]
Phone Version: N915FXXU1BOB6 [february 2015, rev6]
CSC Version: N915FOJV1BOD1 [april 2015, rev1]

Flash the phone using chimera and Serial Number: R28G3195HHZ

[Chimera Tool]

Hi,


It is really interesting problem, what we can offer you (each other optional way already tried by you):
Are you able to change the battery of the phone? Sometimes when the battery incorrect device switched to low power mode.


Best regards
Nicole

Originally Posted by 2201

Changed Antenna many times, even when no sim card in set its No service too and no network bars

[2201]

Will also try writting Qcn

Originally Posted by Chimera Tool

Hi,


It is really interesting problem, what we can offer you (each other optional way already tried by you):
Are you able to change the battery of the phone? Sometimes when the battery incorrect device switched to low power mode.


Best regards
Nicole