Thread: No pre-boot mode possible on DriveSmart 50 LMT-D 5 ?

Has anyone made a hybrid firmware to transform the Drivesmart 50 to the Dezl580?

I have 3 pieces Drivesmart 50

First device i flash with boot on DS50 and other files with RGN on Dezl 580
Updater - no successful , and Garmin device show Software Missing loading
Then I flashed it directly with the files from the original Dezl 580 firmware make to RGN

Device flash successful , and show drivesmart when loading ,but there is already a truck option in the menu and the touch screen is active

Other 2 device in same with same HWID 2267
but when I try to flash them directly with the original firmware DEZl 580 make RGN , after charging the device the screen remains inactive and stuck on main menu.

I fix device with SD card boot with original files on DS50 . And after loading the original software, the screen becomes active.

What could be the reason for the first device to get up and the other two screens to remain inactive ?

The reason is different screen than ZD050NA-05E.The other screen which freezes is A050FTT04.Both work with original Drivesmart 50 and nuvi 25x9 .