Wifi signal very weak and no bluetooth

Hello to everyone!

I have an iphone 5s with a little waterdamage.

Allready gave it a bath in isopropanol vor a couple of hours. The logicboard seems to be in good condition. As i can see.

The signal is very crapy, i have to sit in front of the rooter to get a connection.

• I have allready checke'd if there are any missing cap's.
• And also changed the wifi chip with no luck.
• Also tried a different backcover with different wifi antenna.
• The white capacitator near the chip has also been replaced , nothing changed.
• The blutooth isn't working eather, only a spinning wheel so no on or off switching possible.

It would be very nice if anybody had a tip for me.

Thanks mischa