during the first test flight the landing gear was let down(dont know why but ,my guess is due to safety reasons),the control laws of the aircraft do not permit it to do any manouevres during the first flight.the control laws are upgraded during the subsequent flight(it is a step by step process),for example now the lca retracts its landing gears and does all kinds's of manouveres ,but it cant still use its weapons.now the flight control systems and others systems will be further upgraded to accept and fire weapons(pv2).
:coffee