Unisoc Imei Repair Tool
The NVRAM partition might be corrupted. You may need to flash the phone with the correct stock firmware first.
A Unisoc IMEI Repair Tool is a professional software utility that interacts with the phone's software at a low level to repair its unique identifiers. Its primary purpose is to restore the IMEI number to its original, valid state, thereby re-establishing the device's ability to connect to cellular networks.
Follow these generalized steps to rewrite your original IMEI using the official WriteIMEI utility. Step 1: Set Up the Tool
: Some newer devices have locked NVRAM that requires specialized "DA" (Download Agent) files or professional tools like Chimera Tool to bypass. unisoc imei repair tool
| | Key Features | Dongle / Hardware Required? | Best For | Latest Version (as of 2026) | | :--- | :--- | :--- | :--- | :--- | | ChimeraTool | IMEI Repair, Serial Repair, FRP Removal, Rooting, Bootloader Unlock, supports many brands (Samsung, Xiaomi, etc.) | No (uses a paid software license) | Professionals and shops needing a wide range of services for many brands | v40.09.1703 (2024) | | UMT Pro Unisoc Module | Part of UMT suite; IMEI 1–4 Repair/Change, Security Backup, SIM Unlock, advanced flashing | Yes (requires UMTv2 or UMT Pro dongle/box) | Professional repair shops for deep-level servicing and multiple repairs | v1.7 (2026) | | MRST UniSoc Tool | IMEI 1 & 2 Repair, FRP Reset, Bootloader Unlock, SIM Unlock, Flash Partitions | No (free tool, no hardware needed) | Beginners and experts needing a free, all-in-one tool for basic repairs | v1.0 (2025) | | WriteIMEI Tool | Dual IMEI Writing, Bluetooth & Wi-Fi MAC Repair, Serial Number editing | No (free, lightweight utility) | Quick IMEI fix after flashing for advanced users comfortable with diag mode | R3.0.0001 (2025) | | NCK Box Unisoc Module | Read Info, Factory Reset, FRP Reset, Security Backup, IMEI Repair, Diag Mode Options | Yes (requires NCK Box/Dongle Premium v2) | Technicians using NCK hardware needing a specialized Unisoc add-on | v2.3.8 (2025) | | Pandora Tool | FRP Removal, IMEI Repair, Bootloader Ops, EDL Mode, specialized Xiaomi Unisoc Support | No (free software, but may have paid credits for some features) | Users needing specific support for newer Xiaomi Unisoc devices | V9.14 (2025) | | BADER TEC Unisoc Tool | Works in Diag Mode; IMEI Read/Write, FRP Removal, Flash, Partition Management | No (free tool) | Users needing a dedicated tool for partition & IMEI ops in diag mode | 2026 Beta | | Hydra SPRD/Unisoc Tool | Read/Write Firmware, NVRAM Backup/Restore, FRP Erase, SIM Unlock, IMEI Repair | Requires Hydra Dongle or license | Professionals using the Hydra ecosystem for all-in-one repairs | V1.0.1.50 (older) |
These are the official, factory-grade flashing utilities provided by Unisoc. While their primary function is installing stock firmware, they can restore lost IMEI numbers if a complete firmware package ( .pac ) includes the factory NVRAM binaries. 2. WriteIMEI Tool (Spreadtrum/Unisoc)
| Context | Legality & Status | Typical User | |--------|------------------|---------------| | | Legal (with proof of ownership) | Service centers, technicians, advanced users restoring a corrupted/null IMEI after flashing firmware. | | Illegitimate | Illegal in most countries | Individuals attempting to bypass a stolen phone's blacklist or clone another device. | The NVRAM partition might be corrupted
Using these tools to change an IMEI to a number not originally assigned to the device is illegal in most countries (e.g., US CFAA, UK Fraud Act 2006). This guide is for repairing your original IMEI (found on the box or behind the battery) back to the phone.
Performing a hard reset on a device with corrupted partition tables.
While each tool has its specific interface, the general workflow for repairing a Unisoc device's IMEI is similar. Here is a universal guide you can follow with most of the tools mentioned above. For this example, we will reference the . Its primary purpose is to restore the IMEI
This occurs when the tool cannot put the device into Calibration Mode. Ensure you are using the correct boot key combination, or try using an updated version of the WriteIMEI software that explicitly supports your specific Unisoc Tiger or SC processor model. "NVRAM Read/Write Error"
Locate the original 15-digit IMEI numbers printed on your device's retail box or underneath the physical battery compartment.