topic Re: External usb flash drive not recognized in XZ Series

External usb flash drive not recognized

Wissk — Sun, 07 Oct 2018 14:20:53 GMT

My xzp doesn't seem to recognize any of my flash drives. I use a micro usb to c adapter, which works fine when connecting to pc. Xzp just doesn't recognize the external flash drives and in 8.0 it should be automatic. This used to be so simple with my previous galaxy phone. So what's the problem??

Re: External usb flash drive not recognized

NunoSEN2 — Sun, 07 Oct 2018 19:07:56 GMT

Hi @Wissk;

The XZ Premium might not be compatible with the adapter you are using, were you able to connect anything at all with the adapter?

I myself am using a cheap USB-C (male) to USB-A (female) adapter and it works ok.

Try also restarting the phone, sometimes it can help.

Re: External usb flash drive not recognized

Wissk — Sun, 07 Oct 2018 19:14:47 GMT

I tried the adapter with my pc and it connected fine. I also tried another adapter (female usb to male c) but of the same brand (Baseus) And the i tried more than one flash drive. Of course i tried restarting the phone and i even tried an external hard drive but didn't work.

Re: External usb flash drive not recognized

NunoSEN2 — Sun, 07 Oct 2018 19:19:40 GMT

@Wissk;

Have you tried also restarting in safe mode just to discard any third party app acting?

Re: External usb flash drive not recognized

Wissk — Sun, 07 Oct 2018 19:21:59 GMT

No i haven't because I doubted that the flash drive will normally function in safe mode. Do think it does?

Re: External usb flash drive not recognized

NunoSEN2 — Sun, 07 Oct 2018 19:25:34 GMT

I suppose so @Wissk, as it only disables third party apps and your phone should work normally with the pre installed apps.

Re: External usb flash drive not recognized

Wissk — Sun, 07 Oct 2018 19:36:05 GMT

I tried your suggestion but same result! Didn't work. The flash drive works fine on Samsung Galaxy s7. This is so disappointing!

Re: External usb flash drive not recognized

Strampke — Sun, 07 Oct 2018 19:46:04 GMT

Is this of any help?

Your USB drive should ideally be formatted with the FAT32 file system for maximum compatibility. Some Android devices may also support the exFAT file system. No Android devices will support Microsoft’s NTFS file system, unfortunately.

Re: External usb flash drive not recognized

Wissk — Sun, 07 Oct 2018 20:11:37 GMT

Yes I'm familiar with the fat32 support. The flash drive runs flawlessly on another android device(s7) and it has the right formatting and has a usb and micro usb ends sandisk. If only i knew which flash drives are supported i will buy a new one and copy the old one which contains most of my work. But i still haven't received any explanation from Sony yet.

Re: External usb flash drive not recognized

NunoSEN2 — Sun, 07 Oct 2018 20:39:14 GMT

@Wissk;

You are supposing the problem is with the flash drive but you have to consider also the USB adapter because it working on a PC it's no warranty it will work on the phone.

Regarding working flash drives I don't have any SanDisk but all my Sony ones work with the XZ Premium (with that cheap USB - A to USB - C adapter).

Re: External usb flash drive not recognized

Wissk — Mon, 08 Oct 2018 04:09:08 GMT

I have used the same adapter to connect the phone to my laptop using a micro usb cable amd it worked fine. I have two adapters: a micro usb to c and a usb to c. Both worked with pc but not with flash drive. I will try the adapter again with another phone(note 9). Will update you. Thanks

Re: External usb flash drive not recognized

Wissk — Wed, 10 Oct 2018 09:01:03 GMT

Finally solved the problem of xz premium not recognizing my fash memory. I plugged the flash drive while the phone was off then turned it on. And it works!!

This used to be a very simple and everyday task on my S7. Sony should do something about it.

Re: External usb flash drive not recognized

martinmrmus — Sun, 14 Oct 2018 11:10:31 GMT

Xperia XZ Premium doesn't support OTG after Oreo update.

Re: External usb flash drive not recognized

Wissk — Sun, 14 Oct 2018 15:24:17 GMT

Unfortunately you're probably right. But I found that when plug the flash memory while the phone is off then turn it on, the phone will recognize the flash drive and it will supply electricity to it. I hope a future update will fix this.

Man my ancient S7 works flawlessly with external drives. This!

Re: External usb flash drive not recognized

martinmrmus — Sun, 14 Oct 2018 17:56:03 GMT

No, they won't. I've taken a chat with support and shortly: bad luck.

Re: External usb flash drive not recognized

Wissk — Sun, 14 Oct 2018 19:06:53 GMT

In other words, it was a bad move switching back to Sony after Samsung! I'm so disappointed!

Re: External usb flash drive not recognized

NunoSEN2 — Sun, 14 Oct 2018 19:09:52 GMT

@Wissk, @mrnino;

The XZ Premium does support USB OTG, I have no problem whatsoever using it, read this: https://support.sonymobile.com/global-en/xperiaxzpremiumdualsim/kb/02310188027b445c5013d73c192e8007d3c/

Re: External usb flash drive not recognized

Wissk — Mon, 15 Oct 2018 04:36:17 GMT

I already read that, but it still doesn't explain what works and what doesn't. I didn't try using a flash drive before I updated to 8.0 but as others suggested the problem started after Oreo. I tried 3 different flash drives and non worked. The only way to get them to work to to connect them before turning on the phone. Contacted sony didn't but didn't get any answer. DM sonyxperia on Twitter and no answer again! I miss Samsung support!! Sony used to have the best support and Samsung used to have the worst. Now it's vice versa!

Re: External usb flash drive not recognized

stevenfoh — Sun, 21 Oct 2018 07:09:56 GMT

Restart your phone and it will detect your OTG device.

Might be annoying, we have to wait till Sony rolls out a new fix. For now, doubt Sony could do anything much.

Good luck everyone!

Re: External usb flash drive not recognized

Wissk — Sun, 21 Oct 2018 15:41:53 GMT

I figured that much. Every time i have turn the phone off, plug the flash drive and then turn on. Pretty annoying and humiliating among Samsung owners!