iPhone 6 DFU Error 4005

[short_toground]

iPhone 6 originally stopped powering on when aftermarket charger was used.

Tristar has been replaced twice and still it won't boot. I can force it into DFU and iTunes detects it in recovery mode.

When I try it hangs at "waiting for iPhone" and eventually gives error 4005

[PRO-mobile]

Before replacing Tristar device turned on? The DFU forcibly or automatically defined?

[short_toground]

Owner says it worked perfectly before Tristar replaced. It wasn't done by me. I did try another Tristar and same result

Have to force it into DFU otherwise hangs at 60ma when powered on

[Kradziej]

booting to itunes nute? or just going into DFU?
DFU and recovery mode are different modes and you wrote it in a little confusing way
If iphone goes into DFU mode then its not reading NAND or there is corrupted firmware in NAND, otherwise it goes into recovery mode

[PRO-mobile]

DDR does not start. Rather bladed device. When flashing lights apple or silence?

[short_toground]

Originally Posted by Kradziej

booting to itunes nute? or just going into DFU?
DFU and recovery mode are different modes and you wrote it in a little confusing way
If iphone goes into DFU mode then its not reading NAND or there is corrupted firmware in NAND, otherwise it goes into recovery mode

Ok so nothing happens unless I hard reset by pressing home button then iTunes recognizes it in recovery mode.

There is never a display I just hold power and home buttons for 10 seconds and release continuing to hold home button so iTunes detects it. Is that DFU mode?

If I don't do that iTunes never detects the phone

[short_toground]

Originally Posted by PRO-mobile

DDR does not start. Rather bladed device. When flashing lights apple or silence?

I'm confused. What do you mean?

[PRO-mobile]

In your case it is necessary to solder sandwich ( CPU and DDR), if there is an experience, it is possible to separate the DDR-soldering.

[short_toground]

Originally Posted by PRO-mobile

In your case it is necessary to solder sandwich ( CPU and DDR), if there is an experience, it is possible to separate the DDR-soldering.

You're saying it's the memory chip on top of the CPU?

[Kradziej]

Originally Posted by PRO-mobile

In your case it is necessary to solder sandwich ( CPU and DDR), if there is an experience, it is possible to separate the DDR-soldering.

Is solder sandwich yummy? I want to try that, Im not going to die from lead poisoning if its lead-free solder right?

Originally Posted by short_toground

Ok so nothing happens unless I hard reset by pressing home button then iTunes recognizes it in recovery mode.

There is never a display I just hold power and home buttons for 10 seconds and release continuing to hold home button so iTunes detects it. Is that DFU mode?

If I don't do that iTunes never detects the phone

In recovery mode you can read ECID or SN in itunes, in DFU you have N/A
if there is no display then its probably DFU and if its not going into DFU without your intervention then it probably boot loops on some early boot panic

PRO-mobile may be right, power surge from this crap charger could damage memory through PP1V8_SDRAM which is used by both tristar and memory, but its only guess, it could be anything

start by measuring important voltages, check that PP1V8_SDRAM and so I think

[short_toground]

Originally Posted by Kradziej

Is solder sandwich yummy? I want to try that, Im not going to die from lead poisoning if its lead-free solder right?



In recovery mode you can read ECID or SN in itunes, in DFU you have N/A
if there is no display then its probably DFU and if its not going into DFU without your intervention then it probably boot loops on some early boot panic

PRO-mobile may be right, power surge from this crap charger could damage memory through PP1V8_SDRAM which is used by both tristar and memory, but its only guess, it could be anything

start by measuring important voltages, check that PP1V8_SDRAM and so I think

Yes checked 1.8v and 1.2v sdram both are there. So aren't CPU, nand, reset voltages

[short_toground]

Also I removed NAND to reball and without the NAND iTunes auto detects it in DFU.

With NAND reballed iTunes doesn't detect it unless I force it in DFU like the original issue

[sajidmirza]

Hi,me too facing the same problem but it enters dfu by itself when connected to pc.All the relevant voltages are present.

[Kradziej]

Originally Posted by short_toground

Also I removed NAND to reball and without the NAND iTunes auto detects it in DFU.

With NAND reballed iTunes doesn't detect it unless I force it in DFU like the original issue

maybe try programming new NAND and check what happens

[PRO-mobile]

If the upgrade Progress bar appears, it is not exactly CPU and DDR, if not displayed, then check whether for the Nand core voltage, if you do, then it's the CPU or DDR.