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Cumulus Touch IC
How ironic is that? By todays' standard, electronics back in those days was simply enormous. Look (left) at what we have to work with today.
Refectio specializes in micro soldering repairs, data recovery and water damage repairs on iPhone's, iPad's, Mac's & PC's, Flash Drives & USB Drives as well as all types of electronic devices. We've fixed drones, appliance pcb's, security cameras...if your not sure if we can fix it, send us a note!
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Flux & Heat to Cumulus IC
- Touch Disease / Pry Damage
- Long-Screw Damage / FPC connector
- Backlight / Micro-jumper
- Water Damage / Data Recovery
- General troubleshooting
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Shuts down when disconnected from ACHi everyone. This is a follow-up to my MacBook Air 13” (2014) – Water Damage, will not power on. Thanks to everyone who...
MacBook Air 13” (2014) – Water Damage, will not power onHi everyone. I have a water damaged (tea) MacBook Air that was dead as a doorknob. No light on the MagSafe, no fan or...
"iPhone 7 dead after lightning port replacement" için yanıtI would start by testing a bare-bones setup. Start by disconnecting the battery first (always!). Then disconnect the digitizer, LCD, front camera, rear camera and home button extension flex. Now re-connect the battery; you should only have the battery and Lightning Dock flex connected. Connect a known-good, preferably Apple-original Lightning cable to an iTunes enabled computer. If you have access to a multimeter, you could measure the battery first. If it reads ~3.8V - 4.2V, then it is good. Does iTunes recognize your phone? If so, then you should re-connect one flex at a time until the phone stops working. I would start with the Home button flex first, then add the rear camera, LCD & Digitizer then from camera flex. If the bare-bones setup does not get recognized by iTunes, then you most likely have a logic board issue. You could send it (or find a local) to a repair shop that specializes in micro-soldering repair.
"Clue as to what went wrong here? iPhone DEAD after chassis replacement" için yanıtFirst question: Did the replacement housing include flexes pre-installed or did you have to transfer them over? It was smart of you to test the screen first. Unless something happened to it during the rest of the procedure, we can assume it is still in working condition (do a quick visual inspection of the flexes and connectors nonetheless). As for the housing, if it was pre-populated with flexes, I would try the board in the original housing to see if that makes a difference. If you had to transfer the flexes, then inspect them closely for tears. Finally, do a thorough visual inspection of the logic board, preferably with magnification. Now, the best way to help isolate the issue is to use a bare-bones approach. Connect just the battery and Dock to the logic board. Then connect to your Mac and see if the phone is recognized. If it is, then connect one flex at a time until the phone fails. If the bare-bones setup is not recognized, you likely have a logic board issue. It could still be the battery or Dock...
"Phone boot loops after screen replacement except after DFU restore" için yanıtYou essentially answered your own question by the time you were done. I will add that getting a phone with a smashed screen, especially an iPhone 7, can harbour a lot of internal issues. So start with the FCAM flex and see if that helps. You can also run the device “bare-board”. Just disconnect everything except the battery, dock and screen and see how it behaves. If it is still problematic, then it is most likely a logic board issue. The Audio IC issue doesn’t usually cause boot looping though so you may have a different or additional problem here. When you open up the phone, if you see signs that the logic board was previously worked on, chances are this will be an unfixable device.
"My cable got heated and then the phone display worked but wont charge" için yanıtThere’s a good chance that the phone sustained some extensive damage. However, without knowing if the issue is caused by a bad charger/cable or a logic board issue, it’s hard to say what exactly is at play. You’ll need to consider that the charge port and/or battery could have been damaged in the process so you’ll need to eliminate those possibilities before looking at potential logic board issues. On the logic board, you could have a damaged Tristar/Tigris IC’s. Open up the phone and measure the voltage of the battery to see if it is still good. If it measures 0V, you’ll need to get a replacement. Try charging with an original and preferably known-good charger and cable to see how the phone behaves. A USB Ammeter will tell you if current is flowing or not. The next step is to try a known-good (or high quality replacement part) charge port and do the same tests. If the phone still doesn’t work/charge, then it will require a micro-soldering repair.
"iPad only charges when turned off." için yanıt“Charging when off” is usually PMIC related. When dealing with iPad and charging issues, especially older models, always start with the charge port first (which you have done). When that doesn’t solve the issue, then look at Tristar (easier replacement) and then PMIC when all else fails. The PMIC’s can be expensive so troubleshoot the issue fully before replacing them.
"Not charging / restarting when plugged in" için yanıtChances are it is related to Tristar/Tigris. What gives it away is the fact that it died on a cheap car dock. Of course, the only way to know for certain is to properly test the device. Ideally, you would want to rule out the charge port first, then look at the logic board for any signs of damage and then move onto the Tristar and charge circuit.
"iPhone 6s plus display vertical lines" için yanıtThat looks like a bad display but you won’t know for certain until you have the phone and a quality screen replacement in hand. Always disconnect the battery first and re-connect it last! iPhone 6s Plus Screen Replacement
"My phone turns off after 3 minutes" için yanıtI would try to re-install the original charge port to see if the problem persists. If it does, then you may have accidentally damaged something on the logic board (connectors) or one of the flexes. If the problem is not present with the original flex, then you probably have a defective replacement flex.
"Can you help me verift some components on the logic board?" için yanıtIt would help if you explained what you were trying to accomplish, as well as adding a photo of the reverse side of the board. Nonetheless, here are my thoughts: (1) The black blob on the left is a micro-controller that is covered with an epoxy. This will not be a traditional IC with markings, it will literally be the silicon die. Not much you can with that. (2) The metallic probe on the right appears to be some kind of connection or perhaps a switch. To what purpose…who knows. You should be able to figure that out by looking at the toy car it came with. It could be for some kind of switch to activate the sound. (3) The blob in the middle is a solder joint. Again, without a picture of the reverse side, it’s hard to know exactly what it’s purpose is. I suspect it is a third anchor point for the metallic probe on the right.
"iPhone 7 Bootloop after Screen Replacement" için yanıtThe iPhone 7/8 series have a very inconvenient bend on the Home Button flex. It’s really easy to tear the flex, either near the logic board connector or at the 90 degree bend before it sneaks underneath the LCD heat shield. The other area that is easily damaged is the connector on the Home Button itself and the opposite connector on the short flex that runs underneath the heat shield. The long and short of it is that there are multiple failure points. You will need to carefully inspect the Home Button and flex to see if there is any damage. Magnification here will help. Look for tears to the flex or any physical signs of damage. You should also check the connector to insure none of the pins are damage or that there isn’t any debris.
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