[BROM] CHANGE IMEI (4G) Initializing usb... OK
Waiting for device... COM4 [BOOTROM:0E8D:0003]
Bypassing authentication... OK
Analyzing... preloader_oppo6765.bin [MT6765:6:1072] [Internal]
Vendor : OPPO/REALME
Handshaking... OK
Reading hardware info... OK
  Hardware : MT6765 [Helio G25|G35|P35] 0766 8A00 CA00 0000
  Security Config : SCB SLA DAA 
  MEID : BDDB9C19A02299A23513E823418877C6
Sending Download-Agent [1]... OK
Syncing with device... OK
Booting device... OK
Syncing with DA... OK
  Storage : EMMC - CID : 534E0113.4B394A30.87261039.13586A9E 
  Vendor : Micron - Name : S0J9K9 - Serial : 1788774182 - Rev : 16
  Boot1 : 4 MiB - Boot2 : 4 MiB - RPMB : 16 MiB - User Area : 116.48 GiB 
Reading partition info... OK [47]
Reading device info... OK [super]
   Model Name : oppo6765
   Manufacturer : OPPO
   Android Version : 10
   Security Patch : 2021-04-05
   Build ID : QP1A.190711.020 release-keys
   Build Date : Sat Apr 17 19:55:42 CST 2021
   Market Name : OPPO A54
   OTA Version : CPH2239PU_11.A.07_0070_202104171923
Checking lockstate... UNLOCKED
Reading NVData... OK
Checking CERT [Auto]... OK
Patch type : 2
Creating backup file... OK
IMEI_MT6765_BDDB9C19A02299A23513E823418877C6_2023-06-20_13-33-30.zip IMEI(s) to write:
  IMEI[0] : 86642xxxxxxxxxxx
  IMEI[1] : 86642xxxxxxxxxxx
Writing IMEI [NVDATA]... OK
Writing IMEI [NVRAM]... OK
Patching CERT... FAIL
Invalid CERT pattern! Abort!
UNLOCKTOOL 2023.06.20.0
Elapsed time : 36 seconds