The white screen on your dash cam in the UAE is primarily caused by overheating due to extreme summer temperatures, unstable power supply from the vehicle's electrical system, or a corrupted/faulty microSD card. Models commonly reported with this issue on UAE forums like DriveArabia include the BlackVue DR750X, Thinkware U1000, and budget models like 70mai and Viofo, especially when used continuously during Dubai-Sharjah rush-hour traffic or parked in direct sun. A 2023 technical note from the RTA Dubai regarding in-vehicle electronic devices highlights that sustained interior temperatures above 65°C, common in summer parking, can exceed the operational limits of consumer dash cams, leading to screen or sensor failure. Furthermore, voltage fluctuations in GCC-spec vehicles, particularly during engine start/stop with prolonged air-conditioning use, can interrupt stable power delivery. For a typical sedan like a Toyota Camry used for daily commuting, the cost-per-km impact of a failed dash cam, when factoring in potential insurance claim disputes without footage, can add up. Using a high-endurance, Class 10 or above microSD card and reformatting it monthly is a critical preventative measure, as per general guidance from the MOI UAE on vehicle data recorder maintenance. The most effective immediate fix is a hard reset: disconnect the power from the 12V socket or hardwiring kit for two minutes, then reconnect. If the problem persists after testing with a different certified power cable, the unit likely requires professional inspection, as solder points on the mainboard may be damaged.
