Huawei just can’t stop lying about its smartphones.

Previously, the Chinese smartphone manufacturer was caught posting fake user reviews and using photos marketed as if they were taking by one of its smartphones. Now, the company has again been caught with its hand in the cookie jar.

First reported by AnandTech, the Huawei P20 Pro was discovered to be over-performing when running the benchmark app 3DMark, falsely inflating its benchmark scores. Soon after, 3DMark released a statement that confirmed the findings and as a result would delist four Huawei phones, the P20, P20 Pro, Nova 3 and Honor Play.

In response to the ordeal, Huawei released a statement to Android Authority explaining that its phones were designed to optimize the CPU, GPU and NPU through its AI system enabling a “Performance Mode” for specific applications that call for more intensive processing. The practice of boosting performance for specific tasks is normal behavior for smartphone manufacturers, but what isn’t normal is the practice of hard coding a phone to do so specifically for benchmark apps.

UL ran an internal version of 3DMark on Huawei’s phones and found that they performed much worse than in the previous tests. The P20 Pro’s score dropped from 2988 in the public app to 1930 in the private app and the Nova 3 and Honor Play saw a similar performance degradation. It confirmed the findings that it wasn’t AI that was adjusting the performance, but Huawei was doing so to enhance benchmark scores.

3DMark has since removed the scores for its listings as punishment and added the caveat the manufacturer did not comply with UL benchmark rules.

It’s a shame Huawei has to resort to these unsavory tactics. We cannot deny it makes some outstanding smartphones with cutting-edge technology, yet Huawei is developing a reputation for doing shady things to sell its smartphones.