MPU9250: Turning Gyro off and using only acclero and magnetometer

Im using Mpu9250 with a nR52832 development board, In earlier stages I first enabled gyro, accelerometer and magneto and it was working perfectly.
now when Im trying to use only accel and magneto and disabling gyro via PWR_MGMT_2 register im not able to use accel unless iam activating atleast one axis of gyro (any of the 3 axis).

Disabling gyro by sending 7 in PWR_MGMT_2 register.
while if I send 0/1/2/6 my accel works just fine.

Please help ASAP

You will probably get a better answer by posting your question to an Invensense forum.