What causes “invalid IMEI” to show on your TECNO smartphone’s display could be a variety of issues: using the device after a factory reset on it, flashing your Android with the SIM card left in it, and others. Sometimes, the culprit might be a problem in your Android’s MTK setup. IMEI — which means International Mobile Equipment Identity — is that unique 15-digit serial number every GSM cell phone carries. As you might have guessed from its name, an IMEI number is used by GSM service providers for identifying your Android mobile phone. But when your device displays the “invalid IMEI” error message, you find out that you can’t make or receive phone calls and can’t send or receive text messages. Fortunately, this post explains “invalid IMEI number” solutions to help nip the issue in the bud. It’s a step-by-step guide on how to change IMEI on TECNO smartphones, covering areas such as how to fix invalid IMEI on TECNO phones, how to fix invalid I...
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