Check the option (do not select "Clean all and lock" if you are maintaining an unlocked bootloader).
There is a little-known fix that works when everything else fails: activation record does not exists unlocktool
Using UnlockTool may violate software terms of service. The “Activation Record Does Not Exist” error could be an intentional security response to tampering. Researchers should only analyze this in isolated lab environments with dummy licenses. Check the option (do not select "Clean all
Click the function and allow UnlockTool to inject a modified activation ticket into the file system to trick the device into booting past the setup wizard. Technical Comparison of Repair Modes Chipset / Device Type Required Connection Mode Primary Fix Method in UnlockTool BROM Mode (Vol Up + Down) Format NVRAM / Flash Scatter ROM Qualcomm (Snapdragon) EDL Mode 9008 (Test Points) Wipe EFS / Restore QCN File Apple (iOS Devices) DFU Mode / Purple Mode Generate Activation Ticket / Hello Screen Bypass Samsung (Exynos) Download Mode Flash Combination Firmware / Repair EFS Pro-Tips to Avoid Bricking Devices Researchers should only analyze this in isolated lab