Here we have compiled a list of common iTunes error codes, and the corresponding issues.
| Error Code | Failure Analysis |
|---|---|
| -1 | Baseband CPU, EEPROM |
| 1 | Baseband CPU |
| 6 | CPU, NAND, EEPROM |
| 7 | PD Fast Charging IC |
| 9 | NAND |
| 14 | EEPROM, NAND |
| 21 | RAM |
| 53 | Baseband, check PC network first |
| 56 | NFC |
| 2009 | Baseband, Use a different PC to restore first |
| 4005 | NAND, CPU |
| 4013 | NAND, RAM, i2c, check USB Cable first |
| 4014 | NAND, RAM, CPU, i2c |
| 4015 | RAM |
| 0xe8000068 | Check USB cable |