Solve the iPhone 6 WIFI weak signal

Most people have met WIFI can be turned on, but the signal is weak or it has no signal when being away from the router. It's very frustrate and anxious. Now, you can kill the problem. Before you begin to repair, you need some phone repair toolsand accessories. Well, when you are prepared these tools, let's start to solve the problem.

First of all, determine if the WIFI signal is weak. You can only find one or two WIFI hotspot and the signal is weak when power is applied, but trouble-free iPhone can search more than ten hotspots. So, it's problem can be judged as weak signal.

Secondly, disassemble the iPhone by using phone opening tools and the WIFI chip is found to be replaced. You can use an accessory antenna to replace the peripheral antenna circuit of the chip and then determine whether the chip is workable. This way is to use a 10cm enameled wire acting as antenna starting from C5213_RF near WIFI, as shown below picture 1-1

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Thirdly, turn on the iPhone again when finish above step, you can found many WIFI hotspots. In the meantime, the signal has been normal. The main reason is the WIFI signal filter FL_CELL_WIF_RF has been damaged. It is no effect that removing filter on the iPhone operation. In the case of repair, we often use the enameled wire directly ignoring the filter, like pcb picture 1-2 as follows

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Finally, when the enameled wire is placed well and after smearing the enameled wire with green oil and assembling test, like picture 1-3 as follows. The trouble was solved and the signal becomes normal. You can continue to use WIFI to browse the web and do not have to worry about the weak signal. 

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More details can consult Vipprogrammer.