1. Download flashtool+driver
https://mega.nz/file/0h0S0QZa#DrZ5_DAguRvq5pm870oyth2SuGoj2g0_eWdZ6JMV0Uk
2. Disable Signature via search : 'advanced startup'
3. Open flashtool-drivers check flashmode driver dan fastboot driver
4. If there is security prompt, choose install anyway
5. Download minimal adb fastboot (1.4.3 recommended) + extract
https://mega.nz/file/0klnTYqa#tXRKOWEAp7fmuT6KL_GqGdD3tJFmvcOfMnmGpOnboLk
6. Move twrp/other file to extracted folder + rename
7. Connect Sony to PC and make sure USB Debugging checked and USB File Transfer Checked
8. Allow USB Debugging when window is showed on phone
9. Open cmd-here dari extract tadi
9. Type'adb devices' (to make sure device ready)
10. It has tobe like this
11. Type 'adb reboot bootloader'
12. Your device will turn off and go to bootloader mode
13. Type 'fastboot devices'
14. Type 'fastboot flash recovery twrp.img'