Thread: nuvi 610 has white screen after flashed with wrong firmware

When I tried to flash this FW, the device could enter Pre Boot mode propperly, but the flashing process could not be finished.
After enetering the Pre Boot mode and starting Flashing the device disconets and the flashing process could not be finished.
I have tried about 50 times.
Ther was always an error message that the device is not connected with updater or error message:

IOU_UTILITIES.CPP-203-2.8

After a couple of tries there was a message on the display "SYSTEM SOFTWARE MISSING", but the updater still could recognize the device and I tried to flash it again, but unsuccessfuly.
After that there was an error message :
The Garmin device is unable to program the requested memory region.
This could bee due to an incompatibility between this application and the Garmin device.
If this error continues to occur, please contact Garmin tehnical support.

Webupdater stil can recognize the device as Nuvi 310, SW V 5.20 .
When I turn on the device the display is white again and I can not enter Pre Boot mode.

Now the device also can not enter mass storage mode.
I also tried previous SD Card flashing methods, but It did not work.

Is there any solution for this situation?