What is the capacity of the drive? You are probably using too large of a USB flash drive or it is formatted with the wrong file system. Most USB 3.0 drives will be formatted to NTFS. The drive needs to be formatted as a FAT or FAT32 drive with a 32 kilobyte sector size. Janome claims that the largest format USB drive that is compatible with the Skyline S9 is 16GB. Not all USB drives of this capacity or smaller are tested and proven to work with this sewing machine. See https://www.janome.com/siteassets/support/technical-support/skyline-s9/formatting-your-usb-stick-for-first-time-use-skys9...pdf for formatting a drive from the sewing machine. To format the drive first at the computer, https://www.janome.co.jp/e/e_downloads/soft/update/skylines9_atelier9/how_to_format_the_USB_flash_drive.pdf . Sometimes you can also get a driver issue. There are some USB drives that require a driver to be installed to be able to read the drive.
I hope this help.
Cindy Wells
SOURCE: usb flash drive not recognized when plugged into hub
how i can solve my problem
not recognized when plug my usb in my computer port
SOURCE: Tablet won't recognize USB drive
The guy's that can fix this are in the uk Sumo Technologies they fix all DTR products (address on DTR's website)
SOURCE: i have a sony lcd and i want to update it
No, Brother.
Sony LCD will only accept "Sony Micro Vault"
So try using sony Data Treveller.
KIndly Do Rate, If helpful.
SOURCE: WD My Book Not Recognized
One or more of the hints below will probably sort out most USB problems with most USB portable / external hard drives and OTHER devices (though not always)
A few things to check but assumes USB and Windows for other interfaces / operating systems (mac/ Linux) similar steps may be adapted to suit.
1. Ensure it is connected directly to the computer to a USB 2.0 port not a USB 1.0 port as this can have effects on performance and reliability
2. Use only the cables that came with it NOT one that fits that may have been lying around or is longer. Not all USB cables are equal even though they should be)
3. Do not connect through an external USB HUB unless that hub is USB 2.0 AND has its own power supply.
4. Use ONLY the power supply that came with it if it has an external power supply Don’t use any other unless you know it has both the same voltage and current rating e.g. 12V 500mA anything rated below that would not work properly.
5. Always use the same port for connecting your devices. Some devices do not like being switched about. If switched they may want to install software / drivers again. This can be especially true if you move a HUB to another port
6. For FLASH DRIVES you should ensure that the device is set for "quick removal" using the drive control panel properties or use the USB "Safely Remove Hardware" option. If you dont do this there is a very strong chance that any files you transfer may not be there when you plug into another computer.
If you checked and fixed anything there and still have issues then check your hardware from CONTROL PANEL / SYSTEM / HARDWARE.
Any exclamation marks by hardware need fixing before you investigate any further
USB flash drives can fail for no apparent reason.
Sandisk Cruzers are especially bad for this.
USB hard drives should be treated with extreme care.
This is a real hard drive ! and knocks and bumps can quite literally kill them.
It is possible to remove drives from the enclosures in most cases and connect directly inside a PC to fully check it.
You should also do this to cheack the drives connections are not bad inside the enclosure
Note that if you hear a drive clicking or pinging this could be the worst thing you would hear.
Known as "The Click Of Death"
If none of the above steps help look at updating the drivers from the manufacturers web site in the support section
SOURCE: Sharp BD HP21 Won't recognize USB drives
You have to make sure the files, you downloaded to your USB stick, are not in folders. Mine worked after this. I am still having problems with pixelation on newish discs. I read somewhere that if I plugged a USB thumb drive into the Sharp HP21 it will aid the processing and work better. Does anyone know if this is true as I often get poor picture quality on what looks clean LoveFilm BR discs. (No problems with standard DVDs.)
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