The ZTE Blade A35 is a Unisoc-based smartphone, and like many SPD devices, it may enter a dead boot state due to firmware corruption, failed flashing, or partition damage.
This guide provides a safe and tested procedure to bring the device back to life using Pandora Tool or Infinity CM2SPD.

This is a technician-level process and should be performed carefully to avoid further damage.

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🔧 What Causes Dead Boot on ZTE Blade A35?

Common reasons include:

• Interrupted flashing
• Wrong firmware or PAC file
• Corrupted bootloader/partition table
• Formatting critical partitions
• Sudden power loss during an update

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🧰 Tools You Need

• Pandora Tool (latest version)
• Infinity CM2SPD
• SPD/Unisoc drivers installe
• ZTE Blade A35 dump file (link will be added once provided)
• Good USB cable

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🛑 Important Warning

DO NOT format any partition manually — especially boot, gpt, or super.
Formatting the wrong partition can permanently kill the device.

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✅ Step-by-Step Dead Boot Repair Procedure

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1️⃣ Backup Your Device (Important!)

Before writing anything to the phone:

• Open CM2SPD or Pandora
• Perform Full Backup
• Backup everything except:
  • SUPER
  • USERDATA

These partitions are large and unnecessary for boot repair.

This backup is your safety net in case anything goes wrong.

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2️⃣ Restore the Provided Dump File (Downgrade / Boot Repair)

Using your preferred tool:

Using Pandora

1. Open Pandora → Unisoc → Dump Write
2. Load the provided dump file
3. Put the phone
4. Connect USB
5. Start write process
6. Wait for 100% completion

Using CM2SPD

1. Open CM2SPD
2. Select the correct chipset (UIS8581 / SC9863A depending on variant)
3. Load the dump/boot repair files
4. Connect
5. Write the required partitions

Restoring this file brings the device back to a clean, stable boot state.

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3️⃣ Perform Factory Reset / FRP Reset (Authorized Only)

After restoring the dump:

• Use Pandora or CM2SPD to perform factory reset
• Do not wipe individual partitions manually
• If the device was previously managed (MDM/enterprise), follow authorized activation steps

This ensures the phone boots without leftover data conflicts.

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4️⃣ Power On and Final Verification

Now power on the device:

• Confirm the phone boots to the system
• Test touchscreen, Wi-Fi, SIM, IMEI, Bluetooth
• If needed, flash full PAC firmware to finish the repair

At this stage the phone should be fully operational.

📥 ZTE Blade A35 Dump File (Boot Repair)
Download Link: https://drive.google.com/file/d/1X3Sx9bME4W-FYtp_GF2zK1pwfX9r0Oye/view?usp=drive_link

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