Select the correct COM Port assigned to the Coolsand/RDA interface in the tool.
Turn off the mobile device completely. Remove and reinsert the battery if it is removable. Hold down the device’s specific and connect it to the PC via the USB cable. Your Windows Device Manager should briefly refresh and display an active RDA USB VCOM Port under the "Ports (COM & LPT)" section. Step 4: Execute the Repair coolsand rda imei repair tool new
Installed properly to allow the computer to detect the device in "Boot Mode". Select the correct COM Port assigned to the
New software versions feature auto-detection for a wide variety of legacy and modern chipsets, including: RDA8851 series RDA8955 (commonly found in kids' smartwatches) Coolsand modern feature phone architectures Direct USB Flashing Hold down the device’s specific and connect it
| Legitimate | Illegitimate / Questionable | |------------|----------------------------| | Restoring original IMEI after flashing generic firmware that wiped NV data | Changing IMEI on a stolen phone | | Repairing “IMEI null” error caused by corrupted NVRAM | Cloning a valid IMEI from another phone | | Recovering device after incorrect SP Flash Tool operation | Evading network or law-enforcement blacklists | | Service center use with authorization | Bypassing carrier locks illegally |
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