Mobile crosstalk: cell phone system upgrade regret how to do

In order to improve competitiveness, cell phone manufacturers will give the system a big version upgrade every year, such as MIUI8→MIUI10, EMUI 8 to EMUI 9 and so on. However, some models may occasionally have bugs or more power consumption problems after the system has undergone a major version upgrade, if we are unfortunate enough to encounter and how to operate?

Take Huawei/Glory phone as an example, when the old phone is upgraded to EMUI 9.0 version, you can “downgrade” back to EMUI 8.1 official stable version through Huawei Mobile Assistant, but only if the current version of the phone has not done any unlocking and Root operation, and do a good data backup before downgrading.

Download and install Huawei Mobile Assistant on PC, connect the phone to PC with USB cable, and select Allow when the authorization window pops up on both PC and phone screen (Figure 1).

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Click “System Update” in the window of Huawei Mobile Assistant, click “Switch to other version” in the pop-up system update interface (Figure 2), where we can restore the phone to the earlier official system version (Figure 3), make sure you have backed up the important data, click “Recover” button and click Continue in the pop-up box.

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Other brands of cell phones also have their own way of system rollback, such as Xiaomi phones with Miflash wire brush after unlocking BL, you can find the relevant tutorials in the brand’s official forum, you can search for yourself if you need.

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