Go 60 - MDC has corrupted my satnav's SD card

nuffznuff

It would appear that MyDrive Connect has corrupted the SD card I was using in my device. Note that this is the second card it has broken.

ACTION TAKEN
1. Remove SD card from device
2. Insert card into adaptor - make sure adaptor is unlocked
3. Insert adaptor into card reader and insert reader in to computer
4. File explorer recognises a USB device, insists it must be formatted
5. Attempt to format - Windows says device is locked.

ADDITIONAL ACTION
+ In Windows Device Manager, navigate to 'Disk drives', select 'Multiple Card Reader USB'
+ Right click and select 'Uninstall device' (ignore warnings)
+ When complete, 'Scan for hardware changes'
+ Repeat steps 4 and 5 above

I have also performed factory reset on device (I really don't need pre-installed maps of Australia and New Zealand), so I don't know what else I can do. I don't want to try another card and risk corrupting a third one. Has anyone got any sensible ideas?

DETAILS
Device = Go 60
SD card size = 32gb
Purchase date of card = 9 May 2021
OS = Win 10 20H2
MDC = 4.2.11.4200
Location = United Kingdom

YamFazMan

Hi
@nuffznuff
Welcome to the site
I always use the SD Card Association formatting tool....

Download for Windows.... https://www.sdcard.org/downloads/formatter/sd-memory-card-formatter-for-windows-download/

Download for Mac... https://www.sdcard.org/downloads/formatter/sd-memory-card-formatter-for-mac-download/

After you have formatted the Memory card....
I use the 'Overwrite Format' option....
(Note the overwrite option can take a while to complete)

Insert the Memory card into the PND... It should detect the card and offer to format it... Choose the Maps format option....
Or... Tap 4Dot (.... Menu) --> Setting --> System... Choose 'Format memory card'... Choose the Maps format option....

Stay Safe... ATB YFM

nuffznuff

YamFazMan wrote: »

Hi
@nuffznuff
Welcome to the site
I always use the SD Card Association formatting tool....

Thanks, but been there, tried that, "cannot format write protected card".

YamFazMan

Hi
@nuffznuff
In reality, you can't physically lock a Micro SDHC Memory card there is no lock switch....
But it can be locked (Read only) with a software command....
Warning....
Use the info below at your own discretion....
Make sure you ONLY change the Read/Write attributes for the Micro SD Card

Unlocking a Micro SD Card (Allow Read/Write)
Method....
(1)... Insert the Micro SD Card Adapter + The Micro SD Card into a USB port on your PC
Check which drive 'LETTER' Windows has allocated for the Micro SD Card....
For me, it was USB Drive (E:)

(2)... In the Windows Search Box (Screen bottom left)
Type... "disk management" (Without the quotes)
From the offered list....
Choose... 'Create and format hard disk partitions'
When the Disk info is displayed, scroll down the list of drives to the Micro SD Card for me, it was USB Drive (E:)
Check the Disk 'NUMBER' Windows has allocated for the Micro SD Card... For me, it was... Removable Disk 6


(3)... Press Windows + R Keys
Type "cmd" in the Run Box
Now press Ctrl + Shift + Enter to run Command Prompt as administrator....
(A new window will open asking permission to run as a administrator answer... 'Yes'

(4)... In Command Prompt window, you can type the command lines below
Remember to press Enter after typing each command line to execute the command.
(4.1)... diskpart
(4.2)... list disk
(4.3)... select disk * (replace * with the drive number of your SD card)
(4.4)... attributes disk clear readonly


Close the Command Prompt window+
The Micro SD Card should now Format to FAT32....

Warning....
All the usual disclaimers apply, all the above is at your own discretion

Stay Safe... ATB YFM

nuffznuff

YamFazMan wrote: »

Hi
@nuffznuff
In reality, you can't physically lock a Micro SDHC Memory card there is no lock switch....
But it can be locked (Read only) with a software command....

Thank you for returning so qucikly.

Good news: no errors encountered
Bad news: no further forward



I followed your very helpful instructions, but the disk is still read only.
I have tried to set readonly, then clear readonly (you never know...). Removed the SD card, reinserted - same again.

I put the card into the TomTom device to format it: TomTom doesn't recognise the card.

YamFazMan

Hi
@nuffznuff
Google search...
Quote....
Micro SD card showing raw file system
RAW is a “format” that an SD card acquires when, for various reasons, its file system is damaged. A RAW SD card, unfortunately, becomes unreadable by any operating system. RAW, here, means "raw material"; that is, in order to, say, return to NTFS format on FAT32 SD card, you need to do something with it.
End Quote....
_____________________

Google search....
Quote....
How do I change my raw SD card to FAT32?
Right-click to Format RAW SD to NTFS or FAT32
(1)... Connect your SD card to your PC and go to "This PC".
(2)... Right-click on the SD card and choose "Format".
(3)... Click "Restore Device Defaults" in the popup window.
(4)... Choose the desired file system FAT32, exFAT, or NTFS and click Start to begin the format process.
End quote....

ATB YFM

nuffznuff

Thank you for persevering, but the problem is that Windows says the sd card is write protected, and cannot format it. These cards are not expensive, but the cost adds up.

It would appear that it is not possible to save the card.

Please consider the matter closed.