Hey, I just bought an S7 Edge SM-G950U, the att&t version, SM-G950A. I heard some say that it's not possible to unlock its bootloader, but the OEM unlock option turned out to be available in developer options. However, I'm having a hard time properly installing its drivers, whichever adb driver I use, the driver still shows a yellow warning and the error is that the device can't be started. The device shows up with adb devices when the device is on, but it doesn't neither with fastboot devices nor adb devices when it's in download mode. I'm trying to install TWRP, the hero 2 version. Any help would be appreciated. Thanks in advance
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