Transonic PNA 3137 Pro

[Fika1969]

I`ve downloaded from SD/MMC the wrong Winceimg but now I can`t enter the blue menu for download of new image.Please help me what can I do to enter to the initial menu bootloader menu. Pressing of both keys (power and PIO) does not result. My PNA has been died? Please help me.
Nothing appears on screen when switch on. Only blue indicator of bluetooth is flashing 1 time. I downloaded into flash wrong PNA 510 image. old version was PNA 470 4410 R22
Is there any method of resetting of initial bootloading menu?Or my PNA is dead?