Hi @nataliegl
Here's the A52s WiFi/BT troubleshooting flowchart that may help to find out if you need to replace the WiFi/BT IC or not. Replacing the IC may not be necessary if another component in the WiFi/BT circuit is the problem and not the main IC
Also images of where the components mentioned in the flowchart are located on the board. They are not on a separate board. Check all the components mentioned in the flowchart to see if they are noticeably damaged or not. If they appear OK then electrical testing may be involved.
↑↑ zoomed in image of board below to show component ID ↑↑
image of entire board on which the WiFi BT circuit is located
(click on images)
crwdns2934105:0crwdne2934105:0
crwdns2934113:0crwdne2934113:0
crwdns2915270:0crwdne2915270:0
crwdns2889612:0crwdne2889612:0
3