Wifi not detected

Hi,

I have bought 3 RockPi 4b. Two of them are v1.5. One of those two is failing to set up any wifi interfaces.
There is no signs in the system that the wifi is working. The other two work just fine.

These are the relevant dmesg outputs:

[ 4.066786] [WLAN_RFKILL]: Enter rfkill_wlan_init
[ 4.067685] [WLAN_RFKILL]: Enter rfkill_wlan_probe
[ 4.068188] [WLAN_RFKILL]: wlan_platdata_parse_dt: wifi_chip_type = ap6256
[ 4.068793] [WLAN_RFKILL]: wlan_platdata_parse_dt: enable wifi power control.
[ 4.069420] [WLAN_RFKILL]: wlan_platdata_parse_dt: wifi power controled by gpio.
[ 4.070100] of_get_named_gpiod_flags: can’t parse ‘WIFI,poweren_gpio’ property of node ‘/wireless-wlan[0]’
[ 4.070111] of_get_named_gpiod_flags: can’t parse ‘WIFI,vbat_gpio’ property of node ‘/wireless-wlan[0]’
[ 4.070121] of_get_named_gpiod_flags: can’t parse ‘WIFI,reset_gpio’ property of node ‘/wireless-wlan[0]’
[ 4.070186] of_get_named_gpiod_flags: parsed ‘WIFI,host_wake_irq’ property of node ‘/wireless-wlan[0]’ - status (0)
[ 4.070195] [WLAN_RFKILL]: wlan_platdata_parse_dt: get property: WIFI,host_wake_irq = 3, flags = 0.
[ 4.070994] [WLAN_RFKILL]: wlan_platdata_parse_dt: The ref_wifi_clk not found !
[ 4.071638] [WLAN_RFKILL]: rfkill_wlan_probe: init gpio
[ 4.072102] [WLAN_RFKILL]: Exit rfkill_wlan_probe

I am currently using the Ubuntu server image.
Thanks in advance!