Hello.
This is on a new 5" build please help if you can I have been working on this for days and want to go flying 
I am using Matek F722-STD bundled with the Matek FCHUB-VTX connected together via the supplied ribbon cable
FC Firmware = Betaflight 4.2.2
VTX Firmware = 1.9
First problem im having is that when I have a battery connected betaflight reports no battery connected and the OSD displays 0.00V I have checked the VCC pad on the FC with a volt meter and this is reading the battery voltage so it must be a setting i have missed somewhere.
The second problem is when I use the “Low Power Disarm” feature in betaflight either “On” or “On until first arm” the VTX power level doesn’t change on arming if I have it set to “Off” and manually change the power level it changes fine.
Thank you
Diff all:
version
Betaflight / STM32F7X2 (S7X2) 4.2.2 Aug 16 2020 / 01:48:06 (e833ac612) MSP API: 1.43
config: manufacturer_id: MTKS, board_name: MATEKF722, version: f173f9bc, date: 2019-10-02T14:43:13Z
start the command batch
batch start
reset configuration to default settings
defaults nosave
board_name MATEKF722
manufacturer_id MTKS
mcu_id 002b00303338510c32343933
signature
dma
dma SPI_TX 3 NONE
dma ADC 1 NONE
feature
feature GPS
beeper
beeper -GYRO_CALIBRATED
beeper -RX_LOST
beeper -RX_LOST_LANDING
beeper -DISARMING
beeper -ARMING
beeper -ARMING_GPS_FIX
beeper -ACC_CALIBRATION
beeper -ACC_CALIBRATION_FAIL
beeper -READY_BEEP
beeper -DISARM_REPEAT
beeper -ARMED
beeper -SYSTEM_INIT
beeper -BLACKBOX_ERASE
beeper -CRASH_FLIP
beeper -CAM_CONNECTION_OPEN
beeper -CAM_CONNECTION_CLOSE
beeper -RC_SMOOTHING_INIT_FAIL
serial
serial 0 2 115200 115200 0 115200
serial 4 8192 115200 57600 0 115200
aux
aux 0 0 1 1900 2100 0 0
aux 1 1 2 1925 2100 0 0
aux 2 46 3 1900 2100 0 0
aux 3 13 0 1900 2100 0 0
aux 4 26 1 1900 2100 0 0
aux 5 47 2 1425 1600 0 0
vtxtable
vtxtable bands 5
vtxtable channels 8
vtxtable band 1 BOSCAM_A A CUSTOM 5865 5845 5825 5805 5785 5765 5745 5725
vtxtable band 2 BOSCAM_B B CUSTOM 5733 5752 5771 5790 5809 5828 5847 5866
vtxtable band 3 BOSCAM_E E CUSTOM 5705 5685 5665 5645 5885 5905 5925 5945
vtxtable band 4 FATSHARK F CUSTOM 5740 5760 5780 5800 5820 5840 5860 5880
vtxtable band 5 RACEBAND R CUSTOM 5658 5695 5732 5769 5806 5843 5880 5917
vtxtable powerlevels 3
vtxtable powervalues 25 200 500
vtxtable powerlabels 25 200 500
master
set dyn_notch_width_percent = 0
set dyn_notch_q = 250
set dyn_notch_min_hz = 80
set dyn_notch_max_hz = 350
set acc_calibration = -28,31,59,1
set mag_hardware = AUTO
set serialrx_provider = IBUS
set blackbox_p_ratio = 64
set dshot_bidir = ON
set failsafe_procedure = GPS-RESCUE
set vbat_max_cell_voltage = 450
set small_angle = 180
set gps_provider = UBLOX
set gps_auto_baud = ON
set gps_rescue_angle = 40
set gps_rescue_initial_alt = 20
set gps_rescue_descent_dist = 30
set gps_rescue_min_dth = 50
set gps_rescue_allow_arming_without_fix = ON
set osd_vbat_pos = 2518
set osd_vtx_channel_pos = 2081
set osd_gps_speed_pos = 2136
set osd_gps_lon_pos = 2210
set osd_gps_lat_pos = 2178
set osd_gps_sats_pos = 2104
set osd_home_dir_pos = 2093
set osd_home_dist_pos = 2097
set osd_altitude_pos = 2113
set osd_warnings_pos = 14729
set debug_mode = GYRO_RAW
set vtx_band = 4
set vtx_channel = 8
set vtx_power = 1
set vtx_freq = 5880
set vcd_video_system = PAL
set gyro_1_align_yaw = 1800
set gyro_rpm_notch_harmonics = 1
profile 0
profile 0
set ff_interpolate_sp = AVERAGED_3
profile 1
profile 2
restore original profile selection
profile 0
rateprofile 0
rateprofile 0
set roll_rc_rate = 142
set pitch_rc_rate = 142
set yaw_rc_rate = 136
set roll_expo = 50
set pitch_expo = 50
set yaw_expo = 40
set roll_srate = 63
set pitch_srate = 63
set yaw_srate = 63
rateprofile 1
rateprofile 2
rateprofile 3
rateprofile 4
rateprofile 5
restore original rateprofile selection
rateprofile 0