Why does IPhone 7 7s WiFi still works but has weak signal.
Someone may come across one situation that iphone 7 7s can't reconnect wifi or the wifi signal is very weak, unless I move next to the router. Someone tried all the software fixes, and determined it's hardware. Now this article can recommend you some solutions to solve this problem.
In general, after power on test only one or two WiFi hotspot can be found and turned on, but the signal is weak. The failure-free iPhone can search more than ten hotspots. Therefore, the trouble can be considered as weak signal. when being away from the router, you can find no signal.
The Solution:1. After disassembling, the WiFi chip is found to be replaced. In order to test whether the chip is workable, using an accessory antenna to replace the peripheral antenna circuit of the chip. The way is to use a 10 cm enameled jump wire acting as antenna starting from C5213_RF near WiFi.
2. Turning on iPhone again after finish the above steps, many WiFi hotspots can be found now. At the same time, the signal has been normal. This is mainly because the WiFi signal filter FL_CELL_WIF_RF has been damaged. But the removal of filter has no effect on the iPhone operation. In the case of repair, we often use the enameled wire directly ignoring the filter chip.
3. After smearing the enameled wire with UV Solder Resist and assembling test, the signal becomes normal.
The trouble is removed.With the methods introduced, your iphone Wi-Fi signal on iPhone 7 7s must be strengthen a lot. In these aforementioned methods, I recommend some skills but also a system repair tool to fix iPhone, you can try vipprogrammer.com.
In general, after power on test only one or two WiFi hotspot can be found and turned on, but the signal is weak. The failure-free iPhone can search more than ten hotspots. Therefore, the trouble can be considered as weak signal. when being away from the router, you can find no signal.
The Solution:1. After disassembling, the WiFi chip is found to be replaced. In order to test whether the chip is workable, using an accessory antenna to replace the peripheral antenna circuit of the chip. The way is to use a 10 cm enameled jump wire acting as antenna starting from C5213_RF near WiFi.
2. Turning on iPhone again after finish the above steps, many WiFi hotspots can be found now. At the same time, the signal has been normal. This is mainly because the WiFi signal filter FL_CELL_WIF_RF has been damaged. But the removal of filter has no effect on the iPhone operation. In the case of repair, we often use the enameled wire directly ignoring the filter chip.
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