Apple iphone Error Code Error 4013

What does Error 4013 mean?

iPhone disconnected during restore, or has a hardware component preventing restore.

Common causes

• NAND flash storage failure
• Faulty USB port
• Damaged cable
• Failed or loose BBPMU chip
• Board-level damage from liquid

Diagnostic & testing steps

1. 1. Check USB cable and port for damage
2. 2. Inspect board for liquid damage indicators (LCIs)
3. 3. Attempt restore in DFU mode vs recovery mode
4. 4. Check for overheating during restore process
5. 5. If board-level, test NAND and baseband power management with DCPS

Tools required

• Pentalobe screwdriver
• DCPS (DC Power Supply)
• Multimeter
• Hot air station (if microsoldering)

OEM parts & part numbers

NAND Flash IC, USB Port Assembly

Part numbers: 339S00611, 923-02757

Safety warning

⚠️ Data loss is likely at this stage. Advise customer data cannot be recovered without professional microsoldering.