Fastboot flashing of Xperia 10 IV and 10 V

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The initial installation (flashing) of Sailfish OS is done according to the instructions in the Jolla Shop. This is based on using the flashing script in a similar way to the earlier Xperia phones. The script is included in the downloadable zip package.

There is, however, a problem (in OS version 5.0.0.61) with the subsequent flashing of Xperia 10 IV and Xperia 10 V phones: flashing them the 2nd (3rd,…) time does not work with the flashing script. Instead, the following set of manual commands shall be used - invoke them in your Sailfish directory:

$ fastboot devices
$ fastboot flash boot_a hybris-boot.img
$ fastboot flash boot_b hybris-boot.img
$ fastboot flash dtbo_a dtbo.img
$ fastboot flash dtbo_b dtbo.img
$ fastboot flash userdata sailfish.img001
# Take only one of the next two commands, depending on your phone!
$ fastboot flash oem_a *_v3a_murray.img   ## for Xperia 10 IV (XQ-CC54)
$ fastboot flash oem_a *_v3a_zambezi.img  ## for Xperia 10 V (XQ-DC54)
$ fastboot reboot

Alternatively, revert the phone to Android with the Emma flashing tool and install Sailfish OS with the flashing script in the normal way.

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I’d give it a try now that there is a Sailfish 5 image.
Has anyone experienced with flashing over Android 15 on Xperia 10 V? I tend to dare trying.
The instructions refer the v3a Sony binaries from June, but v5a is also out since November. In know from the other topic, that in general v5a has more issues than v3a, however, I’m assuming those were installed over stock Android 13 or 14, as 15 has only came out recently.
Is there a chance that v5a binaries might perform better if installed over Android 15? Or there’s no connection?

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It’s sad, that not more is known or that the ones in the know don’t share the knowledge :confused:

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I wouldn’t put my hopes into v5a. The image still seems to be work in progress.

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I have flashed SFOS over Android 15 on my Xperia 10 V (XQ-DC72 model).

I have not come across any problems so far. (But it is not my daily driver, still using Xperia 10 III.)

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Great, which image (version) did you use please?
And is there a chance that sailfish will work better if installed after Android15? more recent firmware or so ?

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This is what is in my flashing directory:

-rw-r--r-- 1 user user 181M Feb  2 15:46  SW_binaries_for_Xperia_Android_14_5.4_v3a_zambezi.zip
-rw-r--r-- 1 user user 845M Feb  2 15:46  Sailfish_OS-Jolla-4.6.0.15-xqdc54-1.0.0.25.zip

I can’t comment on whether it will work better since I have not used the other versions.

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Great thank you, and did the OTA upgrade to 5.0.0.61 go smoothly?

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Yes. (20 characters)

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I did the same, flashed the 4.6 and OTA to 5.0.0.61 everything went smoothly, waiting for the camera support to switch it as main device :crossed_fingers:

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Did you try the basics ? Calling, Messaging and Mobile Internet ?

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Is there anyone who can help me get Sailfish on my Xperia 10 V?
I got it when it was already on Android 15.

Tried with the script: stopped when rebooting to fastboot from within the script.
Did it the manual way, as described above: bootloop.
Reverted to Android 13 using Emma.
Installed Sailfish 5 manually: bootloop.
Restored using Emma.
Installed Sailfish 4.6 manually: bootloop.

It seems anything I do just ends in a bootloop and needing to restore the phone with Emma, which only gives me the option for Android 13. I did not receive an update to 14 or 15 after that, don’t know if that will eventually come.

Anyone that can help troubleshoot this?

EDIT:
Never mind, fixed it by doing this on Linux instead of Windows. Don’t know what the difference is, but I did notice: the sparse userdata files said 6 on Windows and 8 on Linux. Pretty sure of that. Strange thing is: I actually used the exact same directory to flash…

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If you want to get ota update after restoring android with Emma, you must relock the bootloader.

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Ah, that is probably it. On some other phones I had the bootloader was always relocked when restoring to stock.