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Avic-F920BT boot loop. How to repair?

By clifford25501 · Jan 16, 2015in Problems/Troubleshooting💬 5 posts👁️ 2,652 views
Posted Jan 16, 2015 · 12:36 UTC#1

I try to update my F920BT with official update but sudenly i got crc error. Now it just got blink display. Does not recognise official update or hack/test mode. I try test mode 2.21 and 2.3. May be there are newer testmodes?

P.S. i try fo flash 4.001 update via testmode 1.4 before it gets dead.

Posted Jan 18, 2015 · 14:22 UTC#2

seems i need to flash wince.img from service mode and all be ok. but this device do not have reset or right-left, upper-down buttoms. pls may be some one know combination for f9120bt model? 

Posted Jan 22, 2015 · 09:35 UTC#3

does anybody have firmware 2.000 for my F920BT? any answer?

Posted Feb 18, 2015 · 08:28 UTC#4

I have found all needed files. Thx Google ;) Now i need information how to put this model in to engeneer mode? Device do not recognise micro Sd with Testmode or update. Does anybody know how to hardreset this device? Or acrtivate engeneering mode to flash win ce image?

Posted Feb 25, 2015 · 11:02 UTC#5

No one can`t help me on this forum?