The phone's original software or ROM has been modified

Modifying the ROM or engaging in practices like rooting involves changes to the internal structure of the phone's operating system that can affect the stability of the device and compromise the integrity of stored data.

Some users apply these types of software modifications to their phones. This involves modifying the memory to remove applications or customize the factory-installed settings on the phone.

doctorSIM strongly advises against performing these modifications.

The unlocking guarantee we offer is based on the condition that the device has not undergone software alterations. If the customer has made modifications, we cannot guarantee the success of the unlock, and in some cases, the service may not be compatible.

Note that if your phone has modified original software or ROM, we cannot guarantee that the unlock will work.

To ensure a seamless experience and make the most of our unlocking service, we recommend that our users refrain from making software modifications to their devices. Maintaining the integrity of the operating system will ensure the effectiveness of our service and provide a successful unlocking solution.