First ensure exact model.
I have Sony XPERIA 10 Plus I4213
- install Android 9 (for Sony XPERIA 10 Plus I4213 it is 53.0.A.14.47 firmware)
1. how to install Android 9 Pie for Sony XPERIA 10 Plus
a) download and unpack this package
Warning – if you want to make clean installation, you dont need to make any changes. If you want to make only update (without factory reset), you need to remove userdata file from unpacked folder before you continue.
I had to use linux newflasher
ctrl+alt+t (open terminal)
sudo apt-get install gcc libexpat-dev libz-dev make
sudo apt-get install libusb
git clone https://github.com/newflasher/newflasher.git newflasher
make -C newflasher
(ensure You downloaded I4213_EU_53.0.A.14.47.rar at step 1a to ~/Downloads folder)
sudo apt-get install unrar
unrar x I4213_EU_53.0.A.14.47.rar
mv * ~/newflasher
b) turn off your phone and connect phone to PC with holding volume down button
c) start NewFlasher from unpacked folder
Reboot mode at the end of flashing:
typa ‘a’ for reboot to android, type ‘f’ for reboot to fastboot, type ‘s’ for reboot to same mode, type ‘p’ for poweroff, and press ENTER.
d) every time NewFlasher ask you, hit
e) after few minutes all is done and your phone gets new firmware
when u see:
Sent command: powerdown.
End. You can disconnect your device when you close newflasher
then unplug device and power on
wait about 5 to 10min until rebooted
If U succeed:
Continue to sailfish installation instructions
firefox https://jolla.com/sailfishxinstall/ &