controller not connecting after update

I’ve already done this, the issue is the controller, it will not connect to anything after updating

Missed say drop the control connection! After the September update my control and that of many people is disconnecting all the time!

Hello Romão.
My name is Ezequiel. I'm an Independent Consultant. Have you tried to see if any updates for your controller? If the controller connects via a USB cable but doesn't stay connected when the cable is removed, reconnect it and see if a controller update is available:
Press the Xbox  button to open the dashboard.
Under Profile & System, select Settings.
Under Devices and Connections, select Accessories.
On the Xbox Wireless Controller screen, select “…” to check your controller's firmware version.
If it says no update is available, then your controller is up to date. If it shows "Update", follow the steps provided.
After the controller is updated, disconnect the USB cable and try to connect wirelessly again.

Before the September update, never had a problem disconnecting the controller! The controller LED blinks and it gets disconnected for 2 or 3 seconds and connect again! I believe it is not hardware but bug in update! Someone with the same problem after the
last update?

Hi Mister Darcy, yes, the three controllers stopped syncing after a update. After many tests, even bought the Kit Play & Charge to see if solved, but nothing solved. One thing that did not leave my head was when they changed the Xbox, I left all controllers
connected, because they were working, so I went on Xbox Live and he asked me to update, so after update, that's when all controllers turned off, I tried again connecting them and never worked.