If a phone is completely dead (won't turn on, no charging logo, not detected by PC) due to corrupted firmware, it is considered "hard bricked." In many cases, the standard MTK VCOM port will not appear. Specialized service tools often use a specific DA file to force the phone into a mode where it can accept a new flash file.
Error 0x7D4 (DA mismatch)
Error 0x7024 (DA load fail)
Error 0xC0050003 (DA corrupted)
For power users and repair shop owners, you can modify the DA file to skip specific storage regions.
Configure flash mode:
Handle authentication: If your DA is patched, ensure that Options → Authentication → Disable Auth is checked (available in some patched SP Flash Tool versions).
Connect the device:
Observe the progress bar:
Mt6737 Da File ◎
If a phone is completely dead (won't turn on, no charging logo, not detected by PC) due to corrupted firmware, it is considered "hard bricked." In many cases, the standard MTK VCOM port will not appear. Specialized service tools often use a specific DA file to force the phone into a mode where it can accept a new flash file.
Error 0x7D4 (DA mismatch)
Error 0x7024 (DA load fail)
Error 0xC0050003 (DA corrupted)
For power users and repair shop owners, you can modify the DA file to skip specific storage regions. mt6737 da file
Configure flash mode:
Handle authentication: If your DA is patched, ensure that Options → Authentication → Disable Auth is checked (available in some patched SP Flash Tool versions).
Connect the device:
Observe the progress bar: