How to Unlock the Bootloader on Nokia C5-03 (Petrol Blue)

Nokia C5-03 (Petrol Blue)

The vast majority of Nokia C5-03 (Petrol Blue) 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 Nokia C5-03 (Petrol Blue).

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 Nokia C5-03 (Petrol Blue), 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 Nokia C5-03 (Petrol Blue). 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, Nokia C5-03 (Petrol Blue) 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 Nokia C5-03 (Petrol Blue)

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 Nokia C5-03 (Petrol Blue). 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 Nokia C5-03 (Petrol Blue), 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 Nokia C5-03 (Petrol Blue), 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 Nokia C5-03 (Petrol Blue) will be fully unlocked.

Share this page with your friends:

See also:



How to flash Nokia C5-03 (Petrol Blue)

How to root Nokia C5-03 (Petrol Blue)

Hard reset for Nokia C5-03 (Petrol Blue)

How to reboot Nokia C5-03 (Petrol Blue)

How to unlock Nokia C5-03 (Petrol Blue)

What to do if Nokia C5-03 (Petrol Blue) won't turn on

What to do if Nokia C5-03 (Petrol Blue) doesn't charge

What to do if Nokia C5-03 (Petrol Blue) doesn't connect to PC via USB

How to take a screenshot on Nokia C5-03 (Petrol Blue)

How to reset FRP on Nokia C5-03 (Petrol Blue)

How to call recording on Nokia C5-03 (Petrol Blue)

How to update Nokia C5-03 (Petrol Blue)

How to connect Nokia C5-03 (Petrol Blue) to TV

How to clear the cache on Nokia C5-03 (Petrol Blue)

How to backup Nokia C5-03 (Petrol Blue)

How to disable ads on Nokia C5-03 (Petrol Blue)

How to clear storage on Nokia C5-03 (Petrol Blue)

How to increase font on Nokia C5-03 (Petrol Blue)

How to share internet on Nokia C5-03 (Petrol Blue)

How to transfer data to Nokia C5-03 (Petrol Blue)

How to recover photos on Nokia C5-03 (Petrol Blue)

How to record the screen on Nokia C5-03 (Petrol Blue)

How to find blacklist in Nokia C5-03 (Petrol Blue)

How to set up fingerprint on Nokia C5-03 (Petrol Blue)

How to block number on Nokia C5-03 (Petrol Blue)

How to enable auto-rotate on Nokia C5-03 (Petrol Blue)

How to set up or turn off an alarm on Nokia C5-03 (Petrol Blue)

How to change ringtone on Nokia C5-03 (Petrol Blue)

How to enable battery percentage on Nokia C5-03 (Petrol Blue)

How to turn off notifications on Nokia C5-03 (Petrol Blue)

How to turn off Google assistant on Nokia C5-03 (Petrol Blue)

How to turn off the lock screen on Nokia C5-03 (Petrol Blue)

How to delete app on Nokia C5-03 (Petrol Blue)

How to recover contacts on Nokia C5-03 (Petrol Blue)

Where is the recycle bin on Nokia C5-03 (Petrol Blue)

How to install WhatsApp on Nokia C5-03 (Petrol Blue)

How to set contact photo in Nokia C5-03 (Petrol Blue)

How to scan QR code on Nokia C5-03 (Petrol Blue)

How to connect Nokia C5-03 (Petrol Blue) to computer

How to install SD card in Nokia C5-03 (Petrol Blue)

How to update Play Store in Nokia C5-03 (Petrol Blue)

How to install Google Camera in Nokia C5-03 (Petrol Blue)

How to enable USB debugging on Nokia C5-03 (Petrol Blue)

How to turn off Nokia C5-03 (Petrol Blue)

How to charge Nokia C5-03 (Petrol Blue)

How to use the camera on Nokia C5-03 (Petrol Blue)

How to find lost Nokia C5-03 (Petrol Blue)

How to set password on Nokia C5-03 (Petrol Blue)

How to turn on 5g on Nokia C5-03 (Petrol Blue)

How to turn on VPN on Nokia C5-03 (Petrol Blue)

How to install apps on Nokia C5-03 (Petrol Blue)

How to insert a SIM card in Nokia C5-03 (Petrol Blue)

How to enable and configure NFC on Nokia C5-03 (Petrol Blue)

How to set time on Nokia C5-03 (Petrol Blue)

How to connect headphones to Nokia C5-03 (Petrol Blue)

How to clear browser history on Nokia C5-03 (Petrol Blue)

How to disassemble Nokia C5-03 (Petrol Blue)

How to hide an app on Nokia C5-03 (Petrol Blue)

How to download YouTube videos on Nokia C5-03 (Petrol Blue)

How to unblock a contact on Nokia C5-03 (Petrol Blue)

How to turn on the flashlight on Nokia C5-03 (Petrol Blue)

How to split the screen on Nokia C5-03 (Petrol Blue)

How to turn off the camera sound on Nokia C5-03 (Petrol Blue)

How to trim video on Nokia C5-03 (Petrol Blue)

How to check RAM in Nokia C5-03 (Petrol Blue)

How to bypass the Google account on Nokia C5-03 (Petrol Blue)

How to fix black screen on Nokia C5-03 (Petrol Blue)

How to change the language on Nokia C5-03 (Petrol Blue)

How to open engineering mode in Nokia C5-03 (Petrol Blue)

How to open recovery mode in Nokia C5-03 (Petrol Blue)

How to find and turn on a voice recorder on Nokia C5-03 (Petrol Blue)

How to make video calls on Nokia C5-03 (Petrol Blue)

Nokia C5-03 (Petrol Blue) sim card not detected

How to transfer contacts to Nokia C5-03 (Petrol Blue)

How to enable/disable «Do not disturb» mode on Nokia C5-03 (Petrol Blue)

How to enable/disable answerphone on Nokia C5-03 (Petrol Blue)

How to set up face recognition on Nokia C5-03 (Petrol Blue)

How to set up voicemail on Nokia C5-03 (Petrol Blue)

How to listen to voicemail on Nokia C5-03 (Petrol Blue)

How to check the IMEI number in Nokia C5-03 (Petrol Blue)

How to turn on fast charging on Nokia C5-03 (Petrol Blue)

How to replace the battery on Nokia C5-03 (Petrol Blue)

How to update the application on Nokia C5-03 (Petrol Blue)

Why the Nokia C5-03 (Petrol Blue) discharges quickly

How to set a password for apps in the Nokia C5-03 (Petrol Blue)

How to format Nokia C5-03 (Petrol Blue)

How to install TWRP on Nokia C5-03 (Petrol Blue)

How to set up call forwarding on Nokia C5-03 (Petrol Blue)

How to empty the recycle bin on Nokia C5-03 (Petrol Blue)

Where to find the clipboard on Nokia C5-03 (Petrol Blue)

How to Unlock the Bootloader on Another Phones