It is irrational, but the fact is that a year after buying a mobile device, the user wants to change it to a more modern one, where Android is newer and has more functionality. However, the user forgets about the ability to flash the Android smartphone on their own. In this article we will tell How to reflash Cat B15.
Why do I need to upgrade firmware on the Cat B15?
There are several reasons:
- The mobile device does not turn on;
- The phone often reboots for no apparent reason;
- It is necessary to restore to its previous state. For example, after unsuccessful firmware;
- You are an enthusiast and want to install the latest firmware.
Flash Cat B15
We will perform the firmware using ZYKUFlasher – This is a free universal program for flashing devices based on the Android operating system. It supports many companies and models of smartphones and tablets. Processors Qualcomm, MTK (Mediatek), Exynos and others. There is protection against “bricking”, I already checked for myself when using the left firmware errors begin to pour in. In general, the program is suitable for novice users and service center engineers.
Instructions for ZYKUFlasher from official site will allow you to update the firmware on a mobile device, as well as restore the device from a brick state if it did not turn on or hung on the logo loading (bootloop happened).
Download firmware for Cat B15
On our site you can find and download official firmware versions for free:
- Cyanogenmod – The author recommends as one of the best solutions.
- MIUI from version 8
- Deodex (modified by users)
- AOSP Extended 6.7 and later / earlier versions
- Hydrogen OS
- LineageOS from version 15.1 and higher
- Resurrection remix – offers excellent customization of the appearance of the operating system no worse than Cyanogen
- Flyme OS from version 6 and above
- Odex (factory)
And also update your gadget to:
All archives are equipped with a file downloadlist, which contains links to all the firmware available for your device (depending on the model and brand of the device), their descriptions and the firmware checker. In certain cases, some firmware versions may be different (since the latest version may sometimes not be compatible with your device specifically)
You can download downloadlist.txt separately along with the firmware checker.
HOW to root Cat B15
Soon I will post a separate article for those who need to get root rights, but for now I recommend considering two options for universal and free programs. I used the second of them, following the manual from the official website of the program and was able to get root.
- Rootkhp pro, the last version 3.1 (at the time of writing);
- ZYKURoot – similar to the first program in functionality, the last version 2.5 (at the time of writing);