Wrong firmware for your device model (e.g., WAS-LX1 firmware on WAS-LX3). Fix: Double-check your model number in Settings > About Phone or the sticker under the SIM tray.
There are several scenarios where utilizing a Huawei P10 Lite flash tool becomes necessary: huawei p10 lite flash tool
The most relevant tools for this device are: Wrong firmware for your device model (e
A: Yes. Huawei considers flashing unofficial firmware as warranty voiding. However, the P10 Lite is likely already out of warranty for most users. huawei p10 lite flash tool