Fastboot oem lock error - fastboot is locked - Android Q&A, Help & Troubleshooting

Hi,
I have a Thinkware/Gemeral Mobile android tablet. Android OS was broken. I can't open OS. I tried to format, wipe data but it's not working. If it's rooted. I can reinstall custom rom but i can't do it. I tried to boot with stock image via fastboot but when i tied "fastboot oem unlock" i'm getting "fastboot is locked" error. I'm booting to fastboot mode with "adb reboot fastboot" command. I tried "adb reboot bootloader" but it's not working for fastboot. Please help me for this issues.

anyone got experience with it?
please.
i will have a long night again

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Hey,
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Good luck!

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