Xperia 10 ii - Unable to Flash Sailfish X


I recently purchased a Xperia 10 II (XQ-AU51) and Sailfish X.

I followed the instructions here

I have followed the instructions and successfully unlocked the booloader.

When I try to flash Sailfish X I receive an error (anonymised below).

sudo bash ./
[sudo] password for :
Detected Linux
Searching device to flash…
Found XQ-AU51, serial:QV724
**, baseband:, bootloader:
Found matching device with serial QV724*****
Fastboot command: fastboot -s QV724*****

fastboot -s QV724***** getvar secure
<< getvar secure: FAILED

fastboot -s QV72***** flash:raw boot_a hybris-boot.img
Sending ‘boot_a’ (18520 KB) FAILED (remote: ‘unknown command’)
fastboot: error: Command failed
Flashing failed (1)

Does anyone know what may be the reason for this?

I have previously flashed an Xperia X and XA2 without difficulties.

Have you downloaded version exactly as per instruction page?

Yes, I have extracted the.img file to my Sailfish_OS-Jolla- folder.

What does this elicit? fastboot getvar current-slot

It is a common issue, last seen here Fashing of Xperia 10 II fails - getvar secure: FAILED

You can try the getvar commands manually, if they only work intermittently, you are indeed hitting that issue. Try a port under another USB controller, preferably USB2, or a hub.

It just reads a variable from the bootloader config. I assume secure means locked.

OK, tried different USB ports and a USB hub - both of which made no difference.

I have now flashed the phone using a Windows 7 PC - which sucks for a Linux phone.

For future reference - flashing Sailfish X with Manjaro (Arch Linux) does not work.

It’s not an OS thing, don’t start rumours.

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Please give it a try and see how you get on.

I have flashed several phones on my desktop, but none of the ports coming off the (X570) motherboard work.
If i use my Asmedia ASM1142-based add-in card it works just fine.
I use Linux Mint, but others here definitely use Arch-based distros and have it working too.

You have a sample size of one, and no A/B testing… come on!


I tried two different laptops, both with Manjaro installed, neither worked.

And until they work under another OS, you have proved nothing.

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I’m happy you had success with Linux Mint.

Yes, the getvar response ‘secure: yes’ means that the bootloader is not unlocked - which prevents installing an alternative OS to the device.

But in the report of @unruly, the execution of “fastboot getvar secure” failed which is a different thing.

Yes, the first part of my post was (an attempt at) answering that.
The second part, that you quoted, was for @aspergerguy.

Similar purple colors are confusing…

I’m reviving an ancient thread here. But it was the first I found. Ran into the same problem as OP. Using an USB hub solved the problem. Must be something to do with the USB-type.

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