ZTE OpenC (kis3): Can't scan for available wifis

I'm having trouble scanning for available wifis on the kis3

What I did:

• Followed Qualcomm WiFi wiki section
• Copied firmware blobs from the FirefoxOS installation on the device.
• Copied wcnss.b00 wcnss.b01 wcnss.b02 wcnss.b04 wcnss.b06 wcnss.b07 wcnss.b08 wcnss.b09 wcnss.mdt to /lib/firmware/postmarketos
• Copied WCNSS_qcom_wlan_nv.bin to /lib/firmware/postmarketos/wlan/prima
• Copied WCNSS_cfg.dat and WCNSS_qcom_cfg.ini from https://github.com/KonstaT/android_kernel_zte_msm8610/tree/cm-14.1/drivers/staging/prima/firmware_bin to /lib/firmware/postmarketos/wlan/prima
• Ran echo 1 > /dev/wcnss_wlan ; echo sta > /sys/module/wlan/parameters/fwpath (and got some errors)

Now ip link shows (among a long list of rmnetx and rev_rmnetx devices):

23: wlan0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 100
    link/ether 00:11:22:33:44:55 brd ff:ff:ff:ff:ff:ff

But nmcli device wifi list ifname wlan0 only shows:

IN-USE  BSSID  SSID  MODE  CHAN  RATE  SIGNAL  BARS  SECURITY 

And nmcli general permissions lists:

PERMISSION                                                        VALUE   
org.freedesktop.NetworkManager.enable-disable-network             yes     
org.freedesktop.NetworkManager.enable-disable-wifi                yes     
org.freedesktop.NetworkManager.enable-disable-wwan                yes     
org.freedesktop.NetworkManager.enable-disable-wimax               yes     
org.freedesktop.NetworkManager.sleep-wake                         yes     
org.freedesktop.NetworkManager.network-control                    yes     
org.freedesktop.NetworkManager.wifi.share.protected               yes     
org.freedesktop.NetworkManager.wifi.share.open                    yes     
org.freedesktop.NetworkManager.settings.modify.system             yes     
org.freedesktop.NetworkManager.settings.modify.own                yes     
org.freedesktop.NetworkManager.settings.modify.hostname           yes     
org.freedesktop.NetworkManager.settings.modify.global-dns         yes     
org.freedesktop.NetworkManager.reload                             yes     
org.freedesktop.NetworkManager.checkpoint-rollback                yes     
org.freedesktop.NetworkManager.enable-disable-statistics          yes     
org.freedesktop.NetworkManager.enable-disable-connectivity-check  yes     
org.freedesktop.NetworkManager.wifi.scan                          unknown 

If I try to connect anyway, I get:

nmcli device wifi connect "mywifi" password "mypw" ifname wlan0
Error: No network with SSID 'mywifi' found 

dmesg output for the time of wifi activation attached. dmesg_wifi_noscan.txt