Sony XPERIA 1 is Sony flagship 2019. It has amazing design, Qualcomm Snapdagon 855 CPU and 6 GB of operating memory. It has also amazing camera and perfect construction. In this article i will show you how to update your device to the latest version of Android 11 and latest official firmware.
First of all one important thing – before you start to do anything with your phone, do the backup of your personal data. It is only for your safety in case that something goes wrong or any mistake happens. In that case you can use the backup to restore the data and try to do everything once again. Each tutorial has been done many times to verify its propriety, so just read carefully all instructions and continue step by step. Our tutorials will be of course updated every time when Sony Mobile publishes anything new, affecting any of our topics. The major part of every file has been created by myself and every file has been tested on the corresponding phone. All referenced files are determined for Sony XPERIA 1 J9110. So, what can you expect in terms of mentioned manuals / tutorials?
How to install firmware for Sony XPERIA 1
a1) download and unpack Android 9 (55.0.A.6.56) for Sony Xperia 1
a2) download and unpack Android 10 (55.1.A.12.28) for Sony Xperia 1
a3) download and unpack Android 11 (55.2.A.4.154) for Sony Xperia 1
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.
b) turn off your phone and connect phone to PC with holding volume down button
c) start NewFlasher from unpacked folder
d) every time NewFlasher ask you, hit N
e) after few minutes all is done and your phone gets new firmware