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Go Back   GSM-Forum > GSM & CDMA Phones / Tablets Software & Hardware Area > iPhone ,iPod & iPad (Apple Inc. Products) > iPhone 11 / iPhone 11 Pro / iPhone 11 Pro Max

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Old 08-19-2021, 05:23   #1 (permalink)
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IPhone 11 restore(writing filesystem) fail @ error -1100

I have iPhone 11 it was disabled due to forgotten password. I checked the iCloud status everything is clean, FMI itís off. The iphone was working just fine before attempting the restoration. I downloaded iOS 14.7.1 which is the latest iOS and attempted to restore using 3utool ..during the restoration it would fail at 40% of writing a filesystem at error -1100 couple of times .. I did research online based on this issue .. I couldnít not find any solution. I used iTunes too to attempt to restore with it also fails at -1100 .. what could be the problem and has anyone ever had the same issue and get it fixed ?

What is surprising me is that the iphone was working just fine before restoring it just started to have some issues when attempting to restore it it is stuck on DFU mode.
Any anyone who can help or advice me on what to do please.
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Old 08-19-2021, 06:35   #2 (permalink)
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try to flash it disconnecting front sensors but if it really somthing to do with file system it will not help
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Old 08-20-2021, 12:12   #3 (permalink)
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you will need to open the phone to check hardware inside also maybe batery is not charged while you were restoring it..worst is maybe nand has problem
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Old 09-29-2021, 19:54   #4 (permalink)
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ram IC is broken.. needs to be replaced ..
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