HOW TO FIX Keyless entry not working on AUDI

Today I installed the part 4G8927753 that can be found on eBay for 13 dollars.
This is a part that you will need if your keyless entry is not working and you have one of the following Audis
Fit for A1 2011- ON
Fit for A4/Avant 2008-2015
Fit for A4 allroad 2010-2016
Fit for A5 2010-2017
Fit for A5/S5 Coupe/Sportback 2008-2016
Fit for A6/Avant 2011- ON
Fit for A6 allroad 2013- ON
Fit for A6/S6/Abant 2011-ON
Fit for A7 Sport back 2011- ON
Fit for A8/S8 2014-2017
Fit for Q3 2012-ON
Fit for Q5 2009-2017
Fit for Q7 2016-ON
Fit for RS4 2013-2016
Fit for RS5 2010-2016
Fit for RS6 2013-ON
Fit for RS7 2014-ON
Fit for QSQ3 2014-ON
Thanks for watching hope this helps!