procedure:
- open ut tool https://unlocktool.net/ download free
- go to tcno tab
- search tecno pva 4
- chick preloader Auth/ tecno V3
- hit preloader erase frp
-no boot key saksak mo lng
logs
[PRELOADER] ERASE FRP Selected auth : INFINIX/TECNO/ITEL [3]
Phone must have battery inside!
Waiting for device... COM8 [PRELOADER:0E8D:2000]
Handshaking... OK
Reading hardware info... OK
Hardware : MT6789 [Helio G99] 1208 8A00 CA00 0000
Security Config : SCB DAA
MEID : 1856768CF7DF7073546AFE942CB93BBD
Sending Download-Agent... OK
Syncing with target... OK
Booting device (preloader auth)... OK
Authenticating SLA... OK
Syncing with DA... OK
Storage : UFS - CID : 48395154304736434E3658313436000000000000
UFS: LU0 Size : 4 MiB - LU1 Size : 4 MiB - LU2 Size : 119.17 GiB
Reading partition info... OK [63]
Erasing FRP... OK
UNLOCKTOOL 2024.04.18.0
Elapsed time : 1 minute 51 seconds
