OK.*#06#.Unlike other chipsets where you need a PC tool (like SN Writer or Maui META), most SPD devices have a hidden engineering menu accessible via a dialer code.
The most famous and frequently cited SPD Android IMEI repair code is:
This is the most reliable "code-only" method for SPD chips.
Step 1: Open the Dialer Open your phone's stock dialer app (like you're making a call).
Step 2: Enter the SPD Engineering Code
Type exactly: *#*#83781#*#*
Your screen should instantly switch to a white or blue background menu titled "Engineer Mode." If that code doesn't work, try *#*#2580#*#* (for Unisoc). spd android imei repair code
Step 3: Navigate to "Connectivity" or "CDS" Inside Engineer Mode, swipe left or right. You are looking for a tab labeled:
Step 4: Select "Radio Information" Tap on "Phone 1" (for SIM slot 1) or "Phone 2" (for SIM slot 2).
Step 5: Enter the AT Command
You will see a command line with AT+ already written. You need to type the AT command to write the IMEI.
Erase the existing command and type exactly (case sensitive):
AT+EGMR=1,7,"YOUR_15_DIGIT_IMEI" Send the command: Tap SEND AT COMMAND
For example: AT+EGMR=1,7,"123456789012345"
Important Variables:
Step 6: Send the Command
Tap the "SEND AT COMMAND" button (may say "AT+ SEND" or just "SEND"). You should see a message: OK or /n OK. This means the command was successful.
Step 7: Repeat for Second SIM
Go back, select "Phone 2," and enter AT+EGMR=1,10,"SECOND_IMEI". Reboot: Exit engineering mode and restart your phone
Step 8: Reboot
Power off your phone completely, wait 10 seconds, and turn it back on. Dial *#06# to verify your IMEI has been restored.
To repair IMEI on SPD/Unisoc, you must use a PC tool that communicates with the BROM (BootROM) or FDL (Flash Downloader) mode.
When the dialer code fails, you move to hardware-level solutions. These are the industry standards for repairing SPD IMEIs.
| Chipset | Dialer Code for IMEI Write | PC Tool Required | Difficulty |
| :--- | :--- | :--- | :--- |
| SPD (Unisoc) | ❌ No (display only) | ✅ Miracle Box / ResearchDownload | High |
| MediaTek | ✅ *#*#3646633#*#* (Connectivity → CDS Information → Radio Information) | SN Writer | Low-Medium |
| Qualcomm | ❌ No | QPST / QXDM | Medium |
| HiSilicon | ❌ No | HCU / IDT | High |
Key takeaway: SPD is among the hardest to repair without a box/dongle.