Chosen Solution
Good day everyone, My tiny-actuator-helper disappeared from the power button and I had to remove the logic board to get to it for the fix. Upon reinstallation of everything in the correct locations and in the correct order, I turned on the phone via connecting to power. All was well for about 20-30 minutes, but while playing music through car stereo, the phone turned off and won’t turn on anymore. There is no sign of life in it, except for unusual heat in CPU area. Whenever I plug it into power, it heats up right around the processor area, but I can’t tell where exactly. If I unplug the battery, the heat generation stops. Then if I plug in the battery after it cools off, nothing heats up. When applying power through a cord, it starts to heat up even after I remove the cord until the battery is disconnected. I haven’t tried powering up via the power button as my fix needs to set overnight. I have no Idea what in the vicinity of the CPU could be causing the overheating or why. Any and all assistance is greatly appreciated!!!! Kind Regards, Attila
So the phone powers up when connected to power? If tht the cause I would start by trying a new battery which is probobly your problem.. It’s a bit early to start thinking about a new logic board
A hot spot on the board equals a short in my opinion. As silly as it seems, one method of pinpointing a short is to remove the emi shields and power on the phone and use your lips to locate the hot spot. You may never know the ‘why’–heat itself can generate a short, perhaps from a defective battery, as can drop damage, water damage…you mention needing to wait before using your replaced power button–that is unusual–did you use some kind of glue in the phone? In any event, plugging in a connector or hitting the power button prompts the phone to boot. Starting the electron flow in this way will run them through the path of least resistance, ie short circuit, ie generate heat, until battery disconnect. Repair–finding a short is honestly a pain. You really wouldn’t want to go anywhere near an iPhone with a conventional soldering iron. Some folks have success with the “poor man’s reflow” ie an oven or hot air gun to attempt and get the solder balls under the chips to briefly experience 250 temp to melt in their place and hopefully “unbridge” and cool down back in place magically making just the right electrical contact. Very easy to give too much heat and irreparably damage components. Good luck–if there is important data on it you might want to seek professional help. There are a few folks out there that specialize in this kind of thing. Jessa
You likely installed the wrong power button cable on the phone like maybe a gsm in a verizon phone or vice versa. I have had these come in the store after home repairs.
