2012년 9월 12일에 발표된 여섯 번째 Apple iPhone입니다. 수리는 이전 모델과 유사하며 스크류 드라이버 및 비집는 도구가 필요합니다. GSM 또는 CDMA / 16, 32, 또는 64GB / 검정색 또는 흰색으로 제공하였습니다.

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iTunes errors 50 and 1671 when restoring iPhone 5

Hand-me-down iPhone 5 was boot-looping, so I replaced the battery. Saw some splotchiness on one corner of the LCD, but everything else worked OK. Tried to restore, but something went wrong - I still saw the previous owner's lock screen and it still asked for a passcode. I went into DFU mode and the phone stopped 2/3 into the restore process - error 50 on the MBP. Windows machines (7 and 10) give me error 1671, never starting the restoring process at all. Not sure if error 50 is fatal, like error 53. iTunes has been updated. These attempts used the same home WiFi network. Win7 is on the MBP. Win10 is on a Dell. I've only tried one Lightning cable, and I think it's MFI-certified. The MBP is the only machine that will start the restoration process.

Phone's now waiting to connect to iTunes, but I think it got partly updated, since the iTunes logo color changed from red to white.

I'm suspecting water-damage, since the original battery seemed shorted out. The innards had no white crust, but I imagine there still can be liquid damage. When fully charged, the phone felt warm, and if I can find my IR thermometer, I would suspect the heat's coming from the logic board.

I'm going to prep the logic board for an ultrasonic cleaning. I've seen one video on removing shields with a soldering iron, but the technique featured a big blob of solder. I can't seem to find other videos that would offer a more "elegant" way to remove the shields with an iron. I'd actually like to resurrect and use this phone for very casual use, even though it may not be fit for reuse.

Ready to remove the logic board, but would love to know what else I can try before removing the shields from the logic board.

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I got error 1671 today while doing a iPhone 6 restore, I believe our internet had gone out for a moment. Have you had connectivity issues? Maybe a firewall blocking the update or something. As for removing the shields we usually use a rework station. I probably wasn't much help sorry:(.

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Unfortunately there isn’t a one-click patch to resolve the error 50 problem on iTunes since the problem is not actually caused by a bug inside iTunes. It’s either with the internet connection or some network settings on a router or a computer which blocks iTunes from connecting to the Apple servers. One of the methods below should work for you:

1. Try Other USB Port - Disconnect the device from the current usb port and connect it to other usb port. Wait for iTunes to detect the device and try to restore it.

2. Re-install iTunes - iTunes could have been installed on your computer with a faulty network settings, or files may could get corrupted as well. Re-installing iTunes would solve all these troubles, it is advised that you download the latest iTunes version from Apple’s website and install it.

3. Check Firewall/Antivirus Settings: Many firewalls or antivirus programs would block any incoming or outgoing traffic via a suspicious program. Unless defined otherwise, iTunes is not supposed to be listed as a suspicious program but user might still check the blocked software list, just in case. iTunes shouldn’t be in the barred list in order to work properly.

4. Clean Registry – Registry could be a major reason why iTunes show error 50. iTunes registry on Windows OS could go wrong about the settings, or might just get corrupt and result in showing Error 50. In such a case, all other fixes might prove worthless.

5. Check Network Connection – Check router settings, whether it’s blocking any port that iTunes uses. Similarly, check if any similar blocking settings are applied on your computer.

Sim Card problem - Just remove the sim card from the device and try to restore it via iTunes without sim card.

Baseband problem - If you used GEVEY sim before, your baseband chip need to be replaced.

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I've encountered this recommended set of actions before:

http://www.unlockboot.com/2015/10/how-to...

I can only talk about the Error 50 problem on my Macbook Pro. The Windows laptops exhibited Error 1671. I tried both USB ports on the MBP. I reinstalled iTunes. I didn't have any extraordinary firewall settings and I didn't install antivirus. I'm not aware of a registry. I have also tried two public library WiFi networks. There's no SIM card inside, and I don't know whether the phone used a GEVEY SIM card. I'm not aware of an unlocked status.

I'm still getting error 50.

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