Rep: 13
2
Hi,
Did anyone ever tried replacing logic EEPROM on rather new iPhone such as iPhone 11, 12, 13 or 14 maybe?
I replaced logic EEPROM on some iPhone 13 Pro, it boots in recovery mode which I understand and then using 3uTools I tried to flash it but, it failed by 25% ERROR: Unable to restore the device (-2).
I have tried with iTunes, it's the same.
Does anyone have an idea?
Regards,
Tee
Is this a good question?
Rep: 1k
11
4
The iPhone 13 requires that ic to be programmed externally with a dedicated IC programmer with the previous chips' IDs. The hardware ID security on modern Apple devices is very good. They are highly resistant to theft and amateur forensic data recovery.
With iPhones newer than 11 CPU, baseband, norflash, eeprom, NAND (and maybe the RAM?) are all hardware ID paired. If one fails the device is a brick without some insanely expensive forensic data recovery tools.
Sometimes 3u tools can work, for specific firmware and software versions of a certain board revision, but it's a Hail Mary method of attempting this fix.
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Thank you Daniel for answering.
I don't agree with you that RAM is paired with the other chips, because, you can easily change the RAM chip and the phone boots normally.
What do you mean by NORflash? Which chip is this?
Dedicated IC programmer? Something special to iPhones logic EEPROM? Or any programmer can do the job you mean?
I read many Logic EEPROM and the content is encrypted, how should the one program the ID?
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Why are you replacing the EEPROM?
Apple has serialization across the chips to prevent theft. The iPhone 14 Continues Apple’s Digital Repair Lockdown
by DanJ
The logic EEPROM has cracked that's why I changed it.
I did that on many iPhone 6, 7 and 8 and it works. After replacement and after booting the device it goes in DFU and it can be recovered/flashed as a new.
I thought maybe as you said, it's locked and doesn't work to change it, but, how you could explain that there are clone EEPROM in stock, who buy them if it doesn't work? 😊
by Tee
@tee59617 - Apple tightened up! 11 and onward are a bit different.
by DanJ
I have ordered some new EEPROM to IPhone 12 and 13 and thought I can give it a try.
by Tee