Samsung, Android 13, IMEI Repair + Patch Certificate with Chimera
Open the phone app and dial *#*#83781#*#* or *#*#3646633#*#* to open the Unisoc Engineer Mode menu. Navigate to the connectivity tab and enable DIAG Mode .
The IMEI is a unique 15-digit serial number used by cellular networks to identify valid devices. On Unisoc devices, this information is stored in a dedicated, protected storage partition often referred to as the . Common Causes of IMEI Loss
Dealing with an "Invalid IMEI" or "Null IMEI" error after a firmware flash? Restoring your device's unique identifier is essential for regaining network connectivity. 📱 Prerequisites Before starting, ensure you have the following: unisoc imei repair tool
Follow these generalized steps to rewrite your original IMEI using the official WriteIMEI utility. Step 1: Set Up the Tool
The phone is booting straight to the regular charging animation instead of holding the diagnostic state.
Install the latest UNISOC/Spreadtrum drivers on your Windows PC. Samsung, Android 13, IMEI Repair + Patch Certificate
The most popular free tool developed specifically for Spreadtrum/Unisoc chips (SC7731, SC9832, SC9863, T606, T610, T616, etc.).
Several tools are commonly used by technicians to manage Unisoc/SPD devices:
This article is for informational and educational purposes only. The author does not condone any illegal use of IMEI repair tools. Always consult a qualified professional if you are unsure about any step in the repair process. On Unisoc devices, this information is stored in
Performing a hard reset on a device with corrupted partition tables.
Widely considered the industry standard by professional repair technicians, CM2SP2 offers deep-level partition control for modern Unisoc platforms.