If you rooted your TV box using Magisk or SuperSU, you voided the signature. To reclaim your warranty or sell the device, you need to flash the signed stock firmware to re-lock the bootloader (on supported chipsets).
: Do not rename the file unless your specific manufacturer instructions say otherwise.
On smart TVs, the file must be unencrypted . If you see ota.zip.enc , you need a decryption key.
If you rooted your TV box using Magisk or SuperSU, you voided the signature. To reclaim your warranty or sell the device, you need to flash the signed stock firmware to re-lock the bootloader (on supported chipsets).
: Do not rename the file unless your specific manufacturer instructions say otherwise.
On smart TVs, the file must be unencrypted . If you see ota.zip.enc , you need a decryption key.