Di3go @ 08.06.19, 21:53
With android update removed the most important thing - "relay".
I had always used a smartphone is only as an access point to create a wi-fi network based on mobile Internet without thinking about the possibility of use as a repeater wifi signal in a wi-fi network.
After reading the posts on the forum, like yours, has decided to check for this possibility at all available to me at the disposal of smartphones, namely, Huawei G700 (U10 firmware based on Android 4.1) and Xiaomi 3 Pro MIUI 22.214.171.124. based on Android 5.1, using an old smartphone in the apartment as a repeater.Result:
in all these cases, when the access points smartphones unplug wi-fi. Conclusion-suggestion:
perhaps philosophy smartphone mechanism of functioning as an access point and thought only
as the mobile internet communication tools. At pH 5 firmware to Android 9 connect the access point (erroneously) does not disconnect from the network wi-fi, which made it possible to what you call "relay" signal. And the upgrade to the 9-ki eliminate violations of this logic.
Please understand me correctly: this is only a hypothesis based on experiments carried out ...
I will be glad to exchange views.