[Q] kindle fire hd 8.9 has no bootloader adb doesn't work

hi im new here and tried to restore using twrp and the boot-loader didn't restore with it now it just gets stuck at kindle fire logo when booting adb doesn't see the device has no fastboot access i have tried many different unbrick utilities when connected to the computer it shows "Jem-PVT-Prod-04 please tell me how to get it back to booting and if possible stock os also has no twrp access i know the bootloader didn't restore but i don't know if anything else did either also sometimes if you leave it on the screen will randomly change to fastboot mode but fastboot still doesn't work when this happens

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