How to Unlock the Bootloader on Sigma mobile X-treme PQ15

Sigma mobile X-treme PQ15

The vast majority of Sigma mobile X-treme PQ15 owners are not aware of the feature called the "bootloader". Some people may confuse it with the standard Downloads application, through which files can be downloaded from the Internet. But advanced users know about this term and understand that they need to unlock the bootloader on Sigma mobile X-treme PQ15.

What is a Bootloader and What is It Used For

For a start, it's worth discussing the bootloader itself. Bootloader is the engineering menu of Sigma mobile X-treme PQ15, which functionally resembles the BIOS on a computer. It allows for deep-level manipulation of the smartphone, not just a factory reset.

By default, the bootloader is locked. This is done so that novice users do not make a fatal mistake when editing the device kernel or brick their Sigma mobile X-treme PQ15. Still, unlocking the bootloader gives the smartphone owner the following benefits:

  • the ability to install custom firmware;
  • root rights for extended access to the device;
  • installation of mods and patches for the current version of the OS.

Generally, unlocking the bootloader provides the user with a lot of features, but only experienced users can fully appreciate them. If you are one of such users, then it is recommended that you read the detailed instructions for unlocking the bootloader.

Precautions

Before reading the guide to unlocking the bootloader, you need to take into account a number of dangers inherent to the operation. First, after its completion, Sigma mobile X-treme PQ15 will be automatically void of its warranty, as in the case of obtaining root rights.

Second, after the bootloader is unlocked, system components will become more susceptible to all kinds of threats. Finally, an unlocked phone can be easily recovered by an intruder who has stolen or found the device on the street.

Unlocking the Bootloader on Sigma mobile X-treme PQ15

After reviewing the aforementioned info, you can proceed to the procedure itself. It consists of three stages, each of which needs to be carried out by the user.

1. Status Validation

First you need to understand if bootloader is actually locked on your Sigma mobile X-treme PQ15. After all, it is possible that you purchased the device second hand, and the previous owner has already performed the appropriate steps.

The check is carried out by direct interaction of the phone with the computer. The steps are as follows:

  1. Download and unzip the ADB and Fastboot debug bridge package to your PC.
  2. Download and install the driver to interact with the smartphone using the official Android website.

  3. After installation, the ADB interface should be displayed in the Device Manager.
  4. Put your smartphone into fastboot mode by first turning it off and holding down the volume down key along with the power button.
  5. Connect your mobile device to your computer.
  6. Launch Command Prompt on your PC.
  7. Enter the following: "cd [path to the adb and fastboot folder]" and press Enter.
  8. Use the "fastboot devices" command to detect the phone connected to the PC.
  9. Enter the prompt “fastboot oem device-info” to determine the bootloader status.

In the information displayed by the command line we will be looking for the line "Device unlocked". If the value opposite it is "false", it means that the bootloader is locked. If “true”, bootloader was unlocked earlier.

2. Sending a Request

To remove the bootloader lock on Sigma mobile X-treme PQ15, you need to send the corresponding application to the manufacturer:

  1. Open the official website of the firmware developer.
  2. On the unlock page, click the "Unlock Now" button.
  3. Authorize your account (it was created when the phone was first set up), and indicate the reason for unlocking (for example, for flashing).
  4. Confirm ownership of the device using the code from the reply SMS.

Then you will have to wait for the manufacturer to approve the request, and you will be able to use all the functionality of the bootloader.

3. Approval of the Application and Unlocking

To see if you managed to convince the manufacturer to unlock the bootloader on the Sigma mobile X-treme PQ15, open the request page. If approved, a confirmation will be displayed on that page.

Now the user will be invited to download the software for unlocking the bootloader. It is installed via PC.

Next, you need to open the phone settings, then go to the Developers section and select the "Factory Unlock" item.

In the "Status" you need to go through authorization to the account, which was indicated on the manufacturer's website.

Now put your phone into fastboot mode and run the downloaded software on your computer.

After authorization, you need to connect your smartphone to the PC and confirm the unlocking.

After a couple of minutes, the operation will be completed and the bootloader on the Sigma mobile X-treme PQ15 will be fully unlocked.

Share this page with your friends:

See also:



How to flash Sigma mobile X-treme PQ15

How to root Sigma mobile X-treme PQ15

Hard reset for Sigma mobile X-treme PQ15

How to reboot Sigma mobile X-treme PQ15

How to unlock Sigma mobile X-treme PQ15

What to do if Sigma mobile X-treme PQ15 won't turn on

What to do if Sigma mobile X-treme PQ15 doesn't charge

What to do if Sigma mobile X-treme PQ15 doesn't connect to PC via USB

How to take a screenshot on Sigma mobile X-treme PQ15

How to reset FRP on Sigma mobile X-treme PQ15

How to call recording on Sigma mobile X-treme PQ15

How to update Sigma mobile X-treme PQ15

How to connect Sigma mobile X-treme PQ15 to TV

How to clear the cache on Sigma mobile X-treme PQ15

How to backup Sigma mobile X-treme PQ15

How to disable ads on Sigma mobile X-treme PQ15

How to clear storage on Sigma mobile X-treme PQ15

How to increase font on Sigma mobile X-treme PQ15

How to share internet on Sigma mobile X-treme PQ15

How to transfer data to Sigma mobile X-treme PQ15

How to recover photos on Sigma mobile X-treme PQ15

How to record the screen on Sigma mobile X-treme PQ15

How to find blacklist in Sigma mobile X-treme PQ15

How to set up fingerprint on Sigma mobile X-treme PQ15

How to block number on Sigma mobile X-treme PQ15

How to enable auto-rotate on Sigma mobile X-treme PQ15

How to set up or turn off an alarm on Sigma mobile X-treme PQ15

How to change ringtone on Sigma mobile X-treme PQ15

How to enable battery percentage on Sigma mobile X-treme PQ15

How to turn off notifications on Sigma mobile X-treme PQ15

How to turn off Google assistant on Sigma mobile X-treme PQ15

How to turn off the lock screen on Sigma mobile X-treme PQ15

How to delete app on Sigma mobile X-treme PQ15

How to recover contacts on Sigma mobile X-treme PQ15

Where is the recycle bin on Sigma mobile X-treme PQ15

How to install WhatsApp on Sigma mobile X-treme PQ15

How to set contact photo in Sigma mobile X-treme PQ15

How to scan QR code on Sigma mobile X-treme PQ15

How to connect Sigma mobile X-treme PQ15 to computer

How to install SD card in Sigma mobile X-treme PQ15

How to update Play Store in Sigma mobile X-treme PQ15

How to install Google Camera in Sigma mobile X-treme PQ15

How to enable USB debugging on Sigma mobile X-treme PQ15

How to turn off Sigma mobile X-treme PQ15

How to charge Sigma mobile X-treme PQ15

How to use the camera on Sigma mobile X-treme PQ15

How to find lost Sigma mobile X-treme PQ15

How to set password on Sigma mobile X-treme PQ15

How to turn on 5g on Sigma mobile X-treme PQ15

How to turn on VPN on Sigma mobile X-treme PQ15

How to install apps on Sigma mobile X-treme PQ15

How to insert a SIM card in Sigma mobile X-treme PQ15

How to enable and configure NFC on Sigma mobile X-treme PQ15

How to set time on Sigma mobile X-treme PQ15

How to connect headphones to Sigma mobile X-treme PQ15

How to clear browser history on Sigma mobile X-treme PQ15

How to disassemble Sigma mobile X-treme PQ15

How to hide an app on Sigma mobile X-treme PQ15

How to download YouTube videos on Sigma mobile X-treme PQ15

How to unblock a contact on Sigma mobile X-treme PQ15

How to turn on the flashlight on Sigma mobile X-treme PQ15

How to split the screen on Sigma mobile X-treme PQ15

How to turn off the camera sound on Sigma mobile X-treme PQ15

How to trim video on Sigma mobile X-treme PQ15

How to check RAM in Sigma mobile X-treme PQ15

How to bypass the Google account on Sigma mobile X-treme PQ15

How to fix black screen on Sigma mobile X-treme PQ15

How to change the language on Sigma mobile X-treme PQ15

How to open engineering mode in Sigma mobile X-treme PQ15

How to open recovery mode in Sigma mobile X-treme PQ15

How to find and turn on a voice recorder on Sigma mobile X-treme PQ15

How to make video calls on Sigma mobile X-treme PQ15

Sigma mobile X-treme PQ15 sim card not detected

How to transfer contacts to Sigma mobile X-treme PQ15

How to enable/disable «Do not disturb» mode on Sigma mobile X-treme PQ15

How to enable/disable answerphone on Sigma mobile X-treme PQ15

How to set up face recognition on Sigma mobile X-treme PQ15

How to set up voicemail on Sigma mobile X-treme PQ15

How to listen to voicemail on Sigma mobile X-treme PQ15

How to check the IMEI number in Sigma mobile X-treme PQ15

How to turn on fast charging on Sigma mobile X-treme PQ15

How to replace the battery on Sigma mobile X-treme PQ15

How to update the application on Sigma mobile X-treme PQ15

Why the Sigma mobile X-treme PQ15 discharges quickly

How to set a password for apps in the Sigma mobile X-treme PQ15

How to format Sigma mobile X-treme PQ15

How to install TWRP on Sigma mobile X-treme PQ15

How to set up call forwarding on Sigma mobile X-treme PQ15

How to empty the recycle bin on Sigma mobile X-treme PQ15

Where to find the clipboard on Sigma mobile X-treme PQ15

How to Unlock the Bootloader on Another Phones