[MTCD Android Head Units General] semcoinc:
OK so here is an update on my day's work

This is the HA V2.75 configuration that has rendered my MTCD/KBT radio inop

[IMG="HA V2.75_1 MCU on KBT w/PX5 SoM"]https://lh3.googleusercontent.com/04Alem63o7yPs4EkQL1HfYNYpltS6N4MQf2MkYs1H1tz8WawfsJ8SUE5XYD2hdGa0_JOXE54b9cNOdhEn3gJu_XatJ9H9tLIFUTEvd5u9-FOQqXfq3LucmIQGvF4Utfz42NOVWcjOFyoeMnH-OTX9E9Xm1a-XtNnGv8SoQIEkLW_iy-nk8U7HEvgHPtP7oMkGnzJwEY1E4p1yhqqzLpHo7mMlHCCW5kst_4dlHuOVln5YimV1RA3c8UOX1TzsMT7NlKQoVN2uftr8q-rWADTBshcSKhvsDBqF8Wj5avCnNqJoAvD4DIF4zPkotF3UHg8SnPd5eJxtByoMAIi_7kfydJLe5QSAvHEEP261x2aeTcbmral5FMWbCj-zn1xzN-gfVpO6M9SFYLGmIsW4bC2Tsuy2a0SVak0yQqbObSuM56qULcpBKSUwXHtV_A2pNgKJwOtbpFYPiKj_yvgvjeK-OnpHQ_PdEQx2PesqzDAHOnM1nscJdOE846-w7FIjesC0fyaM8-CuBRm-P3gkOi3AoWb-KImdwxNxS9H5777SF5ye-3mohMpiW5ELvdHQuMl-z0W2Wo3HP510KUmHpTgFsaH8yGc9l_3gWWcMtdukgtofmpzcFgfadHSvc1hI0Td0mhdXRd3_ppsNSkimoKjOB56FktINpwHGw=w833-h625-no[/IMG]

I rolled back to the seller's last supplied dmcu.img MCU which had a date of 20170327 which resulted in a Version Unmatch error BUT the RADIO WORKS but the MCU does not show a shutdown option and reboot does not have previous .cfg settings.

[IMG="KBT supplied MCU w/o Shutdown Option"]https://lh3.googleusercontent.com/0EaW7eHgeyeZQKS7Ll8Uz7_5rBx8UtTbcMu_asWS4hvdV_3YEP9OvWKxZYTbd3yr4VykkqySmOE7Ni8BPy-aWB8uzDMNSrk76N5RXiz-ReCoEo-ON_JrWWw-dBBITOL-6TwKyov1wtNpnR5JFP5rHg9SZdH0t7AA945qxkjNAsy1jLR4rUf6gvl9xFLk7nYvxgaKjHP9QFoieFdVGA2QsADIsm8soQoWQD__3ZHxeVPSpPnp1ScTcOZ0eBGCf6yXYPq8ymad1b-0jvNnU0XRsBQP3_fWAYyw6kwTIZdizjBKDOXbVgZuyvb5-4eFF1pYtmwBgt50xwPnHo3idxnWa4HRUYS3fjZ5T3qjKfH21f5hr3BG-4UlUVTGLffK4Rl5Yv1vff05sAbr3c9Mqj_NKgVmGYjLiRAAeMdXo3CEvSIwladSgDnUcODYZDVdb78H1NxZM1QIdN6A9BQfXyboQr-plpPiIUQy6f5bfmhKFBDIM5T20XHb-ckLBEfTKUbh_rsm0sZRi4BwxIR46mMyi2BidaDqb8BQs8LImRFmkiZCgBay3L8pUkbVM0lCcOFkx2ye10HZn-MRn4bMLlrTgV8P_V3zNVRc9qPPQ_ghIGHiMwRVguMxWpWcmg-xQjAJznzVP0FG92kxwe5fBn1Tw6ch98OPpL_QDw=w833-h625-no[/IMG]

So then I installed the .cfg file that I had saved from the HA V2.75_1 configuration with all my buttons saved. Radio still works, all button settings restored, Version Unmatch GONE, but still no shutdown option. At this point I place the saved .cfg file into the flash and also on the GPS card

Remove USB stick with .cfg file on it and press reset button for reboot. Reboot occurs with Android Logo instead of .cfg BMW logo. Radio works, all button configurations lost and Version Unmatch error reappears

I re-flash the unit with the .cfg file from the inserted GPS card and all is running fine without Version Unmatch, Radio working and button configurations are back to my normal settings.

It appears that any reboot does not see the .cfg file and reverts back to a prior state because when reboots come up showing Android logo, I know I am in trouble, because my selection is BMW logo.

Sure wish there was a way to read these .img and .cfg files to see what is in them and better understand the differences. Anyone here with those talents/capabilities?

I will gladly offer up my seller's MCU file to anyone who would like to evaluate it.

So for now, I have no assured shutdown of the unit, but all functionality, including Radio, is working.

Thanks,

Mike