Hello Hicham,

Thank you for contacting Huawei technical support team.

Regarding your inquiry please note that unlocking your phone is a high risk and could affect your phone performance such as;

1. Some of the phone's functions may become invalid. For example, the phone's software may fail to be updated or fail to be used properly after an update.

2. The phone's system compatibility may be affected. If you install a third-party application that has not been fully tested, it may affect the phone's system stability or even damage the phone hardware. For example, high power consumption may shorten the phone's standby time and the battery's lifespan, or the RF performance may be affected, causing the phone to be unable to search for a network or reducing the call quality.

3. The phone's security may not be guaranteed and there may be software vulnerabilities. Malicious applications may easily attack the phone and obtain personal information, such as the phone number, SMS message content, and location data; send SMS messages in the background for customized services or make phone calls, secretly incurring additional fees; or put the phone under monitoring by other people.