Hi, happy new year! : )
i bought a used Xperia 10 Plus (dual SIM) with Android 10 and wanted to install Sailfish on it. But i am unable to unlock the bootloader as described in your guide: jolla[DOT]com/install-sailfish-x-xperia-10-windows/
my current setup:
PC: Windows 10 Pro / version 1909 / OS build18363.1198
phone: Xperia 10 Plus / dual SIM / I4213 / Android 10 (i know this needs to get downgraded)
What i tried so far:
Try #1) Unlock bootloader with sailfish package
- downloaded sailfish OS *.zip and unpacked
- checked
*#*#7378423#*#*
for bootloader status: equalsYES
- connected phone with fastboot (blue LED)
- set up drivers from
Sailfish_OS-Jolla-3.4.0.24-i4213-0.0.4.10.zip
- opened CMD
- [CMD] checking fastboot availability with
fastboot devices
: device is listed! - [CMD] executing bootloader unlock
fastboot oem unlock 0x4DF*************
FAILED (remote: âCommand did not succeedâ)
fastboot: error: Command failed
Try #2) Unlock bootloader with general Sony instructions from here, hoping that the Sailfish tools are just incompatible due to the android version: developer.sony[DOT]com/develop/open-devices/get-started/unlock-bootloader/how-to-unlock-bootloader/
- removed previously installed drivers
- downloaded and unpacked platform tools âplatform-tools_r30.0.5-windowsâ
- downloaded and unpacked USB drivers
- Sony sends me to Googleâs page which wants me to download OEM drivers: developer.android[DOT]com/studio/run/oem-usb
- this redirects back to Sonyâs dev page: developer.sony[DOT]com/develop/drivers/
- there are only drivers for Sony Xperia 10 II listed, so i chose them - no clue if thatâs correct : /
- checked
*#*#7378423#*#*
for bootloader status: equalsYES
- connected phone with fastboot (blue LED)
- set up drivers from
Xperia_10_II_Driver.zip
- device now recognized in Windows as âSony sa0200 ADB Interface Driverâ
- opened CMD
- [CMD] checking fastboot availability with
fastboot devices
: device is listed! - [CMD] executing bootloader unlock
fastboot oem unlock 0x4DF*************
FAILED (remote: âCommand did not succeedâ)
fastboot: error: Command failed
So, with both procedures the unlock was just unsuccessful without any hint at what is actually going wrong. I definitely need some advice here, because i just canât find any answers with Google that help me resolve this. If i understand this issue correctly: As long as the bootloader isnât unlocked, i wonât be able to use the Emma FlashTool in order to downgrade to Android 9.
Do you guys have any ideas that i could try? I bought that Xperia for the sole purpose of flashing Sailfish onto it. And i donât know how closely Sony and Jolla are cooperating but the provided guides are ⌠quite disappointing. If thereâs a way to provide feedback regarding that i would really like to do that : )
Looking forward to your suggestions.
Edit: improving formatting