SD Card slot not functioning on CN01-02306B-08A

[kspann]

I am unable to use the micro SD card slot in any fashion on my unit. I initially purchased a 64G SanDisk micro SD and when inserted into the slot, nothing happens. Not even an icon showing up on the task bar. After about 5 minutes, an SD card icon shows up stating that it is not supported and needs to be formatted (see attachments). When I attempt to format it after the 5 minute wait for the icon to show up, it errors out with "Command '8 Volume partition Disk:179,32 public' failed with a '400 8 Command failed'" (see picture). These numbers keep changing every time I try to do this. I formatted the 64G SanDisk micro SD Fat32 on a Mac with no change in the result. I formatted it Fat32 on a PC with no change. I used an LG G5 and it found the card immediately and formatted it for use. I then put it in the unit and had the same result. I am aware of the possible limitations of the size of SD card, so I purchased a SanDisk 32G micro SD card. I had the same result. I followed all the previously mentioned steps all with the same result. I then purchased a 16G Patriot micro SD card and had the exact same result. Again I followed all the previous steps to ensure I didnt have bad cards.

So I have been unsuccessful in getting 3 different micro SD cards to work on the unit when the same cards work on other Android systems. I purchased a USB SD card reader and if I use the USB port next to the SD card slot, the system can access the SD cards. So the unit appears to be able to access the SD cards that I have purchased through the USB port but nothing will work on the SD port.

Amazon order number 111-1226669-3325864

[Jammy]

Hi,
sorry to bring you such bad experience.Thanks for your detailed description and pictures.You can flash the following firmware.
https://mega.nz/#!dN8jlTba!qTkvlkzkQ7it ... IqbtHEtFEI
Download the files to the root content of one sd card or USB stick, then connect it to the car stereo.Next,enter settings - about device - system update.
Hope your feedback.
Regards

[kspann]

Thank you for the quick reply. I have downloaded the img file and put it on an 8G PNY USB 2.0 thumb drive as my SD card slot wont read anything. I had used the thumb drive earlier to listen to MP3 files. I deleted everything off the drive so just the img file was in root. I plugged it into the dongle for the USB port in the front and Android saw the USB device. It stated that there was an update found and asked if I wanted to install it. There is a check box to wipe data as well. This time I chose not to wipe data. It rebooted and came up with "Error" (see screen shot). I tried the same process again with selecting to wipe data. It rebooted and then statind it was Erasing and then went to "Error". It did a boot loop 2 times and then it booted back up and looked like it had converted to system defaults and my files had been removed. I then formatted the USB drive through the unit and copied the img file and tried it again with the same result. I grabbed a Samsung 32 Gig USB 3.0 thumb drive and tried the same thing and got the same result.

[kspann]

My apologies. I forgot to mention that the SD cards still do not function after the suggested actions.

[Jammy]

Hi,
it is strange. So ,for the sd card issue,we want to send you a key board which include the sd slot to you ,you just need to install by yourself.It is easy.You can refer the following video to install it.
If you accept this solution,you can contact the customer service through amazon message to get this board.
Regards

[kspann]

I have reached out to Amazon seller contact. There is no video link in your message. I have found some online but wanted to verify they are the correct one.

[Jammy]

Hi,
sorry for my carelessness.Here is the video.
https://youtu.be/QA6hqh1q1xM
About the rest issue , you can continue contacting my customer service colleague .
Regards