A Good Way To Repair iPhone 6S Plus iTunes Error14

iTunes is a great option when you upgrade to the latest iOS. However, sometimes you run into errors such as iTunes error 14 during your upgrade or a restore. Some iPhone 6S Plus users reflect the problem that there is no serial number when the iPhone is flashing with iTunes, and the iTunes reports an unknown error 14, 4013, etc.



According to the past experience, we suspect that it's an iPhone Nand flash problem. This is fortunately easily solved with few steps! We have a couple of solutions for you.

Connect iPhone 6S Plus to computer with lightning cable, use iTunes to flash iPhone 6S Plus, the iTunes reports that the iPhone "iPhone" could not be restored. An unknown error occurred (14). First, disassemble the iPhone, take out the iPhone motherboard, and then carefully remove the iPhone Nand flash. Check iPhone bitmap on  ZXW Dongle , and then measure the diode data with multimeter, we found that the resistance value of iPhone Nand flash solder pad M6 Pin is infinitely large. As shown in picture.





This pin passes through the R1501 resistor and pulls down, there is no resistance value when measured it with Fluke 15B+ Digital Multimeter, now we're judging that the R1501 resistor is damaged.
Use QUICK 861DW hot air rework station and tweezers to replace the R1501 resistor, and then measure the resistance value of iPhone Nand flash solder pad M6 Pin again, the data is normal. As shown in picture.




Finally, install the iPhone Nand flash to iPhone motherboard, now the flash is finished successfully. The iPhone 6S Plus fault has been repaired.

If you need more phone fix technical knowledge and skills, please contact VIP FIX Shop Team.

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