iPhone 5s - Error 9 During Restore: Troubleshooting, IC U2 Replacement, Memory & CPU Issues

Hello

I have an iphone 5s phone. The phone does not turn on, I tried to reset via iTunes to factory settings and I always get error 9. Swapped sockets, usb cable, even computers. I replaced the IC U2 system but it also did not give results. Maybe some part still needs to be replaced? memory? CPU?

Hello,

You need to desolder NAND and reformat it, e.g. in the naviplus pro 3000 programmer. It has the option of repairing the nand memory and then you have to solder and restore the whole phone and it should work if it is well done.

why is this happening with these iPhones? do they already have it? so it's not the fault of "promising"? And how would I exchange NAND from another 5s?

Unfortunately, this is the fault of poor partitioning on the memory, in the NAND memory you have things like serial number, MAC address, wifi and BT as well as regional settings, if you transfer the memory from another iPhone without reprogramming to your phone it will not do anything and the phone will turn on but it will get stuck on another error in iTunes because the serial number will not match the CPU. This is not the fault of the balls bursting under the system, it is glued and the balls are large enough that there is never a problem with nand. The only option is the programmer, and if you really want to transfer something from another phone it would have to be eeprom, CPU, Nand and Baseband.

PS CPU at the top where the inscription A7 is really RAM, which is shot on the CPU and only on the disk. Everything glued.

hmm, I see that the game is not worth the candle I actually saw you on YT ...

The programmer alone PLN 1000 for one phone does not pay. Even I don't do it because there is a good chance that the CPU will crash if you pick up the nand.

hacker_ice wrote:

The programmer alone PLN 1000 for one phone does not pay. Even I don't do it because there is a good chance that the CPU will crash if you pick up the nand.

In five it's real risky but for ip6 it pays to buy this programmer

Verify the sleeve first. NAND-CPU only later. If it is not a sleeve, then for the purposes of diagnosis, press the CPU / RAM to the motherboard, e.g. in a vise, during playback.
If the playback passes correctly, you have damaged the soldering of the CPU, as NAND will crash for reprogramming

To the author, before you start listing everything on the CD, why don't you check for something first ...? The second thing...

Jarek2140 wrote:

I have an iphone 5s phone. The phone won't turn on

Well, I also have a few that do not want to turn on, sorry, but you can not diagnose the problem based only on the iTunes error code. Error 9 has different faces ...
First you should describe what happened to the phone and under what circumstances it stopped working. Was it flooded?, Run over by a taxi? Or maybe bought on the allegro as damaged? I don't know, that's why I'm asking, because that's where you start to draw conclusions. If the author is looking for help in solving the problem, please be more specific ...