so, im new here. i live in belgium so sorry for my bad english.
i recently bought a DJI spark, when i fly with WIFI i lose signal 2-3 times per minute...
so i did some research and read something about an OTG cable, i bought it and when if fly i dont lose signal anymore buth the battery, hight, distance and speed all say N/A.
can anybody help me pleas

The OTG cable connection method is not supported by DJI

You have to downgrade to DJI GO 4 4.1.15 on Android if you want to use the OTG cable. Newer versions don't show essential flight data. Or you have to stick on a WiFi till DJI comes up with a new release that will work with an OTG cable again (nobody knows when that will be....)

Vyborny83 Posted at 2018-1-16 03:53
You have to downgrade to DJI GO 4 4.1.15 on Android if you want to use the OTG cable. Newer versions don't show essential flight data. Or you have to stick on a WiFi till DJI comes up with a new release that will work with an OTG cable again (nobody knows when that will be....)

how do i downgrade the app? i have a Sony Xperia Z3 Android

You can go to a website like Aptoid and search for DJI Go, then look for the version you need

DJI Spark 1 Posted at 2018-1-16 04:13
how do i downgrade the app? i have a Sony Xperia Z3 Android

There are more mirrors with the APP. If you search the forum you will find it. https://www.apkmirror.com/apk/dji-technology-co-ltd/dji-go-4/dji-go-4-4-1-15-release/. Variant starting with 1 (1027412) should be for phones, variant starting with 2 should be for tablets. You need to uninstall the newer version first before installing this one and you also have to allow the installation from resources other than the play store.

Sir, sorry to tell you that our engineers are still working on OTG cable. Please wait patiently. Using it may have some problems in display.