| Error Code | Meaning | Solution | | :--- | :--- | :--- | | | Driver conflict or bad USB cable. | Use USB 2.0 port. Reinstall MTK drivers. Disable antivirus. | | S_BROM_DOWNLOAD_DA_FAIL (0x13BE) | Preloader version mismatch. | Uncheck preloader in SP Flash Tool. You need a newer firmware. | | ERROR: STATUS_DA_HASH_MISMATCH | Auth file required (secure boot). | Your phone has SLA/DAA security. You must use TCL’s official Multi-Download Tool with an authorized login. | | Phone flashes but won't boot past logo | System partition corrupt or wrong variant. | Re-download firmware for exact model. Flash again with userdata checked. | | No IMEI / No Service after flash | You accidentally flashed nvram or nvdata . | Restore from backup (if you have an NVRAM backup) or use Maui Meta Tool to rewrite IMEI. |
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