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help missing capacitor that's serial and before to blue coil, the dc decoupling capacitor.... what is capacitance ?
Sorry, I was looking for that so fast that i forgot to add pics
see below, the two green circles, i have blue coil and my missing capacitor.... i had no capacitor arround 10pf i believe it is so i put 10nf cap working but not as should be...
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dandan422 the second green circle is C5_RF (below the "blue coil") and is a 3.0 PF +/-0.05PF 25 V capacitor in a 0201 package. If it does not work because you just replaced it with another capacitor of different value, replace the capacitor with the right one.
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sorry but I'm confuse about the value, is it " .0pf " dot zero ? Maybe i get a damaged board to remove that... i have another trouble... signal of wifi is just a bit lower, works but my friend have same 4s and mine is not stronger as his 4s... replaced antenna and got better but not as i expect, replacing chip can solve or it is passive component issue ? i dropped mine to the floor many times... =(
do you have schematic for antenna too ? because in some old antenna 3g and wifi i have some capacitors too... i believe is the same due to application... can you check please ?
Proper value for C5_RF is 3.0PF. not sure what other chip you want to replace.
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Haven't done images here. I keep missing the opportunity from the posts you make, old turkey
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dandan42 not enough information for a definite answer. Post an image of the part you are looking for with your question. Use this guide Adding images to an existing question to add images
by oldturkey03