- I have replaced a damaged relay on my M&S N350 whole house intercom system motherboard, and miraculously, the whole thing was...
- did you get this fixed? Lots of people have this exact pry damage---it is fairly straightforward to replace if you're set up for microsoldering jessa
- You can open up the mini and replace the entire dock connector from the inside. It does have some soldering, but the part is inexpensive. If you're not comfortable with the soldering, surely a repair shop would be willing to install it for you....especial
ly if you did everything else yourself. remember when opening any mini to disconnect battery BEFORE pulling off the lcd flex jessa
- So....you didn't heed my warnings about the conductive paint being a horrible idea for iPad mini backlight repair.... This is definitely a short caused by the conductive paint. I see a dozen iPad mini backlight repair "oops" cases a week, and the ones with the conductive paint are the worst. You need to get a toothbrush and some alcohol and do your best to scrub that stuff out of there. Send it in for a proper fuse replacement, and cross your fingers that the short was only the conductive paint, and not that the conductive paint short caused a heat build up under one of the chips that melted some solder balls to create a permanent short. And then throw that pen away. jessa
- that is normal--those solder pads are placeholders and do not hold a component. If it is an aftermarket digitizer presoldered assembly, the aftermarket touchscreen ic would be my first suspect.
- You could have several different things going on, here's what I think: 1.) Whenever a phone doesn't work in a known good housing, it is a board problem. An LCD that sometimes works and sometimes doesnt work is either: A.) misinstallation--it lifted from the connector as you were lowering screen for example B.) A power issue C.) A backlight problem 2.) For both phones, I want you to consider this common problem and how it may relate to what you've noticed with the second, and possibly both phones. iPhone 5 has a common problem that stems from damage to the U2 USB ic--perhaps through use of non-Apple chargers. The problems symptoms can be (one or more): no charging. fake charging. no-usb detection (i.e. no iTunes recognition) auto-power on after battery connection, and failure to charge a 0% battery. I think of this problem when you describe a phone that worked okay (and then the battery dropped to 0% perhaps) and then suddenly stopped working. 3.) Backlight filters blown. For the second phone--any iDevice can ...
- you need to replace the audio ic on the motherboard
- You have burned components that must be replaced. I'm sure that you will find more corrosion under those shields. You need to take this phone to someone that can desolder the shields and really clean the board---or at least put it through an ultrasonic cleaner. Then you'll need to find someone that can do board level repairs to replace those burned components. If you see a capacitor--one of the little surface mounted rectangles that is tan in the center---that is black, or corroded, it will likely be short and must be replaced. Check with your multimeter set on continuity---if a capacitor beeps, it is faulty. (note: resistors on the board are supposed to beep). My guess is that you have likely shorted your backlight coil (under the shield) and that this is responsible for your no backlight, i.e. no display problem. This is common after water damage.
- It's going to be pry damage like con is suggesting. Those components can be replaced pretty readily--take a close look and see if you can find something knocked off.
- You have three choices. 1.) Screen not installed properly. 2.) Defective screen 3.) Blown a component in the backlight circuit--fuse, ic or coil. (would need a professional to replace)
- nope. You can totally test it outside of the frame. Solder a lead to the bat + and - pins and attach to alligator clips to a DC power supply. You can use powerflex to power on, then disconnect and take readings on both sides of the board. I'm doing it right now :) jessa
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