When you launch the Device Unlock App on your phone, a series of messages may appear but only one is valid for unlocking your phone successfully.
Follow these steps:
1. Connect your phone to a WiFi network.
2. Launch the Device Unlock application and select the Permanent Unlock option. How?
If you see the message below you can unlock your phone using our Device Unlock App.
"Unlock Failed: This mobile wireless device is not eligible for unlock. For Device Unlock eligibility details, please go online or contact Customer Care."
If you get any other message, search for the error message in the table below and follow the recommended steps to resolve the issue:
|Error Message||What to do|
|Unlock Failed : System maintenance error, try again later.||
|Server not responding. Please try again later.||
|Unable to connect to the server at this time. Please try back again later.||
|Failure in applying the unlock settings. Please try again.||
|Failure in processing the request. Please reboot device and try again.||
|No internet connection available. Please try again when internet connection is available.||
|Data corrupted during transfer. Please try again. Error during data transfer. Please try again.||
|Unlock Failed: Unlock Approved: Mobile Device is permanently unlocked||
|Device not recognized by your service provider. Please call customer care.||
* doctorSIM will not be held liable for any damages to the phone due to rooting or performing a hard reset (factory reset).
If the error persists, please contact us for assistance.