After Apple hit Qualcomm with a barrage of lawsuits earlier this year, the chip maker is countersuing Apple right back. Qualcomm today filed its Answers and Counterclaims to Apple’s January lawsuit, filed in the Southern District of California. The full details of the suit can be read in a 139-page document (PDF) released by Qualcomm, but the company has five key complaints — including the claim that Apple deliberately didn’t use the full potential of Qualcomm chips in iPhone 7 phones so that they wouldn’t perform better than the modems provided by Intel.

Qualcomm says that Apple “chose not to utilize certain high-performance features of the Qualcomm chipsets for the iPhone 7 (preventing consumers from enjoying the full extent of…

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