What should I do if the signature of the new mobile phone Baidu is different from that of the old one?

1. First download and install "Baidu Mobile Guardian" on your mobile phone, and click on the desktop of your mobile phone to open "Baidu Mobile Guardian".

2. After entering, click "Application Management" on the right.

3. Click and select "Application Upgrade" in the middle to enter "Application Upgrade".

4. Click "Upgrade Regret" in the upper right corner, and click to open "Upgrade Regret".

5. Go back to "Upgrade Options", select the software to be upgraded, and click "Upgrade". Wait for the software upgrade and installation to succeed.

6. If you want the software to return to the version before the upgrade, click "Go back on your word" to find the upgraded software and click "Go back on your word".

7. Baidu Mobile Guardian will pop up "Upgrade regret prompt" and click "OK".

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