Thanks SONY phone was flash 100% but still did not fix my problem. My keep rebooting after 60s with an error code: 0x992566.....download not completed.
Selected Model : Oppo A15
Code Name : CPH2185
Operation : Auth Flash
Authenticating... OK
Retrieving data... OK [2,39 MiB]
Initializing data... OK
Waiting for device... COM27
Connection : USB 1.0 High-Speed
USB Driver : [MediaTek Inc.] wdm_usb - Version : 3.0.1504.0
Boot Mode : BOOTROM [0E8D:0003]
Disabling Watchdog... OK
Bypassing authentication... OK
Connecting to BROM... OK
Sending DA... OK [211,62 KiB]
Syncing with DA... OK
HW Chip : MT6765 [6765] - HW Ver : 0xCA00 - SW Ver : 0x0000
Bootloader Ver : 0x00 - Secure Ver : 0x00
Internal RAM Size : 448 KiB
External RAM Size : 3 GiB
Storage : EMMC - CID : 684A0190.50613842.9200033E.61B78512
Boot1 : 4 MiB - Boot2 : 4 MiB - RPMB : 16 MiB - User Area : 29,12 GiB
Downloading bootloader... OK [251,46 KiB]
Downloading bootloader... OK [251,46 KiB]
Writing recovery... OK [98 MiB] 2,919s
Writing vbmeta_system... OK [4 KiB] 0,003s
Writing vbmeta_vendor... OK [4 KiB] 0,003s
Writing md1img... OK [48,93 MiB] 1,377s
Writing spmfw... OK [62,58 KiB] 0,005s
Writing scp1... OK [663,91 KiB] 0,018s
Writing scp2... OK [663,91 KiB] 0,021s
Writing sspm_1... OK [421,5 KiB] 0,015s
Writing sspm_2... OK [421,5 KiB] 0,013s
Writing cdt_engineering... OK [1 MiB] 0,027s
Writing special_preload... OK [448 MiB] 16,392s
Writing my_custom... OK [1,07 MiB] 0,031s
Writing lk... OK [3,5 MiB] 0,101s
Writing lk2... OK [3,5 MiB] 0,100s
Writing boot... OK [32 MiB] 0,938s
Writing logo... OK [1,93 MiB] 0,051s
Writing dtbo... OK [125,47 KiB] 0,008s
Writing tee1... OK [490,72 KiB] 0,014s
Writing tee2... OK [490,72 KiB] 0,020s
Writing super... OK [6,38 GiB] 182,213s
Writing vbmeta... OK [4 KiB] 0,003s
Writing cache... OK [176,19 KiB] 0,007s
Writing userdata... OK [274,25 MiB] 7,346s
Rebooting device... OK
UNLOCKTOOL v2021.06.04.2
Elapsed time : 5 minutes 50 seconds