Geos SOKOL-GS1

Very bad quality. There were 3 pcs. GS-1s were purchased from January to May 2018. Without exceeding performance, all 3 failed within 3-4 months. No careful attitude and a small load (like I just have a router on it ..) breakage can not be avoided. All 3 with the same symptoms were covered :( Symptoms: 1. The socket starts randomly calling you, as if after turning off the light. It was especially cool when it started ringing every 30 seconds as soon as you hang up the call. And be silent on the phone! At night! !! :( Then the connection with the gsm module disappears. It appears, then disappears. The mobile network signal level is checked and is constantly good at the socket connection. And finally, the device stops working. Either it simply does not show signs of life, or after turning on after 5-10 seconds, and that's it. Even without load. Reboots, stick-in-put-out games with a SIM card and other perversions will not affect the situation in any way. Manufacturer! Your devices are not placed in the next room! Sometimes, to eliminate symptoms 1 or 2, where else restarting or turning off the sim card helps you need to spend a day !!! Thank you :(