Fix the DADADADA error
Older Custom Firmware like the 3.40 OE or the 3.52 M33 had a protection to avoid updating to Official Firmware and lose Custom Firmare. This protection is giving you the DADADADA error.
To fix the error, follow one of the two guide below:
Fix the DADADADA error with Recovery Flasher
Fix the DADADADA error with Recovery Flasher Guide
Fix the DADADADA error with DC-ARk and Ark new cIPL
Old Custom Firmware Update Guide (with Ark new cIPL and DC-ARK)