XIWR1443QGABL and IWR1443FQAGABL patch to the same PCB board, the power supply voltage is the same, XIWR1443QGABL can enter the Flashing mode (A13 has 1.4v internal voltage output ) , IWR1443FQAGABL cannot enter the Flashing mode ( A13 has 0v internal voltage), may I ask what causes this situation.thank you!