The TCL 50 5G is powered by a MediaTek chipset. Your Windows PC cannot communicate with the phone in its low-level bootloader state without proper drivers.
Which was your phone originally built for?
Turn off your TCL 50 5G completely. Click the "Download" button in the flashing tool on your PC. Hold down both the and Volume Down buttons on your phone, then plug in the USB cable. Step 6: Complete the Flash
: Official security and OS updates for these devices are typically handled over-the-air (OTA) or via carrier-specific support, such as Verizon's Support for the XL variant. Community & Custom ROMs For actual "repacked" or custom firmware: XDA Developers : Check the TCL device forums
