For devices powered by Spreadtrum (SPD) or UNISOC chipsets, "IMEI repair" refers to restoring the original factory identity of a device after software corruption (often shown as "Invalid IMEI" or "Null"). 🛠️ Common SPD Engineering Mode Codes
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If your Android device is showing an Invalid IMEI , Null IMEI , or has lost its network connection after a failed firmware flash or hard reset, you are in the right place. Repairing the IMEI on an SPD chipset device requires specific tools, as simply typing a code in the dialer rarely works on modern Android versions. spd android imei repair code
Leo knew that Spreadtrum (SPD) chipsets could be finicky. He reached for his reliable Toolkit, knowing the first step wasn't a physical tool, but a digital one. He tried the "old school" approach first, tapping a series of symbols into the dialer.
Once in the Engineer Mode menu, swipe to the Telephony or Connectivity tab. For devices powered by Spreadtrum (SPD) or UNISOC
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Depending on your specific model and firmware version, you can try entering these into your phone's dialer: *#*#83781#*#* (Most common for modern Unisoc/SPD chips) *#*#3646633#*#* (Standard Android Engineer Mode) *#*#4636#*#* (General testing menu) *#*#9646633#*#* (Older SPD variants) Review of IMEI Repair Methods Learn more Share public link If your Android
Before attempting repairs, you must verify the current status. SPD devices use a specific diagnostic port that must be enabled.
On some older or specifically configured SPD Android devices, you may be able to enter a secret menu to write the IMEI directly without a computer. Open the Phone Dialer app. Type one of the following codes: *#*#3646633#*#* (General Spreadtrum engineering mode) *#*#83781#*#* Go to > CDS Information > Radio Information . If available, look for Phone 1 or Phone 2 .