OPPO F5 CPH1723_11_A.07_171116 imei writing fail

[sharrymz]

Power off the phone, disconnect and reconnect the battery(if possible) and connect USB cable...
Using Port:
Boot META MODE...
Hold the VOL UP to force MediaTek BootROM.
Scanning BootROM or Preloader port... Done.
Detected [PL] MediaTek PreLoader USB VCOM_V1632 (Android) (COM4)
Connection status: EHCI:HUB:HUB:USB 2.00 High-Speed
USB Driver: [MediaTek Inc.] wdm_usb, version: 3.0.1504.0, date: 1-22-2015
Boot META MODE from PreLoader ... Done.
Scanning META port... Done.
Detected [META] MediaTek USB VCOM (Android) (COM36)
Boot META MODE successfully.
Modem info:
BaseBand chip: MT6763
SW time: 2000.00.00
DSP firmware version: 1.0
DSP patch version: MOLY.LR12A.R1.TC16.SP.V10.3.P53
SW version: OPPO6763_C66_N1_HW
HW version: Unknown
Melody version: LWCTG
AP info:
Platform: MT6763,S01
Build version: CPH1723EX_11_A.07_171116
SW version: CPH1723_11_A.07_171116
SW time: Fri Nov 17 01:18:22 CST 2017
HW version: S01
Writing SN (008402365718402365718402)... Done.
Getting imei signature from server...
[SERVER] Get signature fail, error: Not querying data!!
Writing imei...
imei[1]: 866963048xxxxxxx
imei[2]: 866963048xxxxxxx
failed
Updating encrypted imei... Done.
Writing wifi mac (00:00:b2:66:cb:f6)... Done.