Mobile Device Unlock App (Android) ? Troubleshooting

Device Unlock is an Android app that allows you to request and apply a mobile device unlock directly from the device. This allow you to automatically apply Mobile Device Unlock to the device without using a manual code. When your phone is locked with “Mobile Device Unlock” it’s totally useless to order an unlock code.

Only supported devices (see below) may download the app or have it pre-installed. Supported devices may download the app from: Google Play.

Supported List T-Mobile USA Supported Models List MetroPCS USA

  • Alcatel OneTouch POP Astro,
  • Coolpad Rogue (3320A),
  • HTC One M9,
  • HTC Desire 626s,
  • Kyocera Hydro LIFE (C6530),
  • LG G Stylo (H631),
  • LG G4 (H811),
  • LG Leon LTE (H345),
  • LG V10 (H901),
  • Samsung Galaxy*Avant (SM-G386T),
  • Samsung Galaxy S6 Edge (SM-G920T),
  • Samsung Galaxy S6 Edge+ (SM-G925T),
  • Samsung Galaxy Note 5 (SM-N920T),
  • Samsung Galaxy Grand Prime (SM-G530T),
  • Samsung Galaxy Core Prime (SM-G360T),
  • Sony Xperia Z3 (D6616),
  • ZTE Z820.
  • Alcatel One Touch Fierce XL (OT-5054N),
  • HTC Desire 626s,
  • Kyocera Hydro ELITE (C6740 & C6740N),
  • LG Leon 4G LTE (MS345),
  • LG G Stylo (MS631),
  • Samsung Galaxy Core Prime (SM-G360T1),
  • Samsung Galaxy Grand Prime (SM-G530T1),
  • ZTE Obsidian (Z820).

It’s very important to order the unlock service of your Cell Phone using the correct service.

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How to apply a “Mobile Device Unlock”

  1. From that Application list, tap Device Unlock.
  2. Tap Continue.
  3. Choose the desired device unlock type:*Permanent Unlock
  4. If successful, restart the device to apply the settings.

Note: If you do not restart the device, you will have a persistent alert in the notification tray.

Troubleshooting “Mobile Device Unlock” app

  1. Check that you have an active data connection.
  2. Clear the application cache.
  3. Check that the device memory is properly managed.
  4. Restart the device and try again.

If you receive an error, review the following table for troubleshooting:

Error Message Information / Troubleshooting Device not recognized by your service provider. Please call customer care.

  • Rooting your device will disable the unlock application
  • Download the latest T-Mobile software to continue

Data corrupted during transfer. Please try again.Error during data transfer. Please try again.

  • Ensure the device has stable mobile signal
  • Restart the device and try again

Server not responding. Please try again later.

  • No response is received from the server
  • Try using an alternate internet connection

Failure in processing the request. Please reboot device and try again.

  • Ensure that your device has sufficient memory
  • Restart the device and try again

No internet connection available. Please try again when internet connection is available.

  • No internet connection is available:
    • Device is not connected to 3G/4G LTE.
    • A non compatible*SIM card is being used,

Unable to connect to the server at this time. Please try back again later.

  • Update the app using the Play Store
  • Attempt the unlock using the mobile network.

Unlock Failed: This mobile wireless device is not eligible for unlock. For Device Unlock eligibility details, please go online or contact Customer Care.

  • The device is not eligible for unlock. (Order the Unlock Service from UnlockBase)

Unlock Failed : System maintenance error, try again later.

  • System Maintenance is currently underway
  • Wait and try again later

Failure in applying the unlock settings. Please try again.

  • The device must be connected to the mobile network (including domestic and international roaming)
  • Disconnect from Wi-Fi and try again.
1 – Make sure you use the original Stock ROM (no custom Firmware*like*CyanogenMod, or*Unbranded ROM)
2 –*Make sure you’re using the last version of Firmware for your Cell Phone.
3 – Finally (after upgrade) perform a Hard Reset on your Cell Phone.
4 – Turn off 3G/LTE and force the use of a local WiFi Hotspot.
5 – Make sure you use home Wifi (and not a public/company WiFi since they might limit somehow your internet)

Select one of these two services below to unlock with “Mobile Device Unlock

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