There are more and more users and smartphones that exist in the market with Ubuntu Phone, but this does not mean that there are no errors in their versions. Although the latest version of Ubuntu is a fully optimized version of the operating system, the truth is that some old version of Ubuntu Phone has caused problems for more than one user and if it is not possible to return, the user will have problems so that his terminal works well.
This has an easy solution in Ubuntu Phone since the operating system allows you to go back to a previous version by installing an old OTA. To do this we only need to have connected the mobile to the computer and do the following steps:
This guide may be useful to revert to an old version of Ubuntu Phone
Once written, it will return the terminal nickname which is also the name of the version or build series that the development team created. Now, taking the nickname we will write the following to know all the stable versions for this device.
ubuntu-device-flash query --device=<b>"sobrenombre-terminal"</b> --channel=ubuntu-touch/<b>stable</b>/<b>meizu ( o BQ).en</b> --list-images
The resulting code that the terminal will emit will be the total updates that exist for the terminal and the reference number of versions that we have available through the stable channel of Ubuntu Phone and that we will use to install the old version that we want to install or the one that we want to return because we liked it at the time. So to install or return to OTA 10 in a Meizu terminal we have to execute the following code in the terminal:
ubuntu-device-flash touch --revision 10 --channel=ubuntu-touch/stable/meizu.en o bq.en
This information is useful for future information as we may come across an update that bug the performance of the terminal and we want to go back to an old version. As you can see, Ubuntu Phone can do things that a normal user cannot with Android or iOS.