[HELP] After Flashing SD card with Image, can the SD card be formated and reused ?

[Evanovan]

I put an image 1.0 on SD card for 4400NEX , but i needed the 1.02 .

Can the SD card be formatted or re-flashed ? is the SD card useless at this point and i need a new SD card ?

Any external tools/software to force formatting the SD card ?

 

Thanks for the help in advance

[bonee]

CMD42

 

[Evanovan]

1 hour ago, bonee said:

CMD42

 

can you elaborate more >? is there a tutorial ?

[bonee]

http://avic411.com/index.php?/topic/81468-the-avic-development-mod/

https://hackaday.com/2016/12/13/pioneer-avic-infotainment-units-hacked-to-load-custom-roms/

[mickem60]

On 1/7/2022 at 4:40 AM, Evanovan said:

I put an image 1.0 on SD card for 4400NEX , but i needed the 1.02 .

Can the SD card be formatted or re-flashed ? is the SD card useless at this point and i need a new SD card ?

Any external tools/software to force formatting the SD card ?

 

Thanks for the help in advance

 

[timcampbell092]

Hey Evanovan,
Old thread, but for anyone searching, here's how you can turn an improperly written SD card back into a usable card.
Seems to have around an 80-90% success rate.

Not sure how to do it on MacOS.

[asd255]

win+R cmd

diskpart

list disk
sel disk *
clean

*disk number

 

[bassilap]

On 1/6/2022 at 11:40 PM, Evanovan said:

I put an image 1.0 on SD card for 4400NEX , but i needed the 1.02 .

Can the SD card be formatted or re-flashed ? is the SD card useless at this point and i need a new SD card ?

Any external tools/software to force formatting the SD card ?

 

Thanks for the help in advance

Yes.

So if you flashed but didn't yet put it into the radio, the diskpart commands and videos linked would work.

If you already put it into the radio, IR has been locked by CMD42.

To unlock it, you need to have a Linux kernel patched to run CMD42 (https://media-www.micron.com/-/media/client/global/documents/products/technical-note/sd-cards/tnsd01_enable_sd_lock_unlock_in_linux.pdf?rev=03f03a6bc0f8435fafa93a8fc8e88988)

Not a trivial task to get this working.