For the DIY crowd, the most reliable is the GSM Official Tool v4.2 – search for it on XDA Developers thread “Huawei FRP Unlock Universal”. Download from the mediafire link shared by trusted user “LegacyS”.
For some older firmware versions, you can bypass FRP without a computer by navigating the "Help & feedback" menu within the emergency dialer or contacts. This involves resetting all system settings through the Gmail app's notification settings to clear the lock. huawei y5 2019 frp unlock tool link
To avoid FRP issues in the future, always: For the DIY crowd, the most reliable is