USB

How to Enable USB Debugging on Mystery MID-821

No image set

By connecting the smartphone to the PC via USB cable, the user can charge the gadget or transfer files, for example. To extend the pairing possibilities, you need to enable USB debugging on the Mystery MID-821. This will allow access to additional operations when the phone and the PC are communicating.

Why USB debugging is needed

Debugging is most often used by mobile app developers, as it gives access not only to the files stored on the smartphone, but also to the internals of the mobile platform. However, this mode is also used by ordinary users.

In particular, it allows you to flash your smartphone via a computer if the operation cannot be performed using standard means. Also, debugging allows you to connect to a PC without warning. That is, when pairing devices in this mode, no notification will appear on the smartphone screen asking you to select a connection mode ("Charge only" or "File transfer").

Standard activation method

Every Android smartphone, including the Mystery MID-821, allows you to activate debug mode. But by default this option is hidden, so the activation takes place in two steps.

№1. Switching to developer mode

Debugging is enabled via Developer mode, which is initially hidden. Consequently, the first thing we need to do is to activate the advanced options menu:

  1. Open the phone settings.
  2. Go to "About phone".

  3. Click 5 times on the build number or MIUI version.

The message "You are now a developer" will appear to indicate that you have activated the missing option. You can then move on to the process of activating debugging itself.

№2. Enabling debugging

Having completed the preparatory steps, move on to the main part of the instructions, which look as follows:

  1. Open the Mystery MID-821 settings.
  2. Go to "Additional settings" and then to "Developer options".
  3. Activate the slider next to "USB debugging".
  4. Confirm the operation.

This completes enabling the option, and you can communicate with the smartphone via the computer in debug mode.

How to enable USB debugging on Mystery MID-821 with broken screen

Previously mentioned, the mode in question allows you to connect your phone to a PC without giving permission for file transfer. Therefore, this option is often seen as a means of exchanging data between a PC and a faulty smartphone. However, it can be difficult to activate the mode itself.

To enable USB debugging on the Mystery MID-821 if the screen is broken, you can use optional accessories:

  1. Insert the OTG adaptor into your phone.
  2. Connect your computer mouse to it.
  3. Follow the steps described in the previous instructions with the accessory connected.

This option will help to activate the option in a situation where only the touch screen layer does not work and the information on the matrix remains readable. Otherwise, you will have to proceed at random.

How to enable USB debugging when the Mystery MID-821 is locked

The principle of activating mode on a locked phone is slightly different. In this case, you cannot access the home screen or settings. You can only bypass the restrictions by first resetting the settings via the recovery. Hence, to enable USB debugging on the Mystery MID-821 if the phone is locked, you need to:

  1. Switch off your smartphone.
  2. Press the power button and lower volume knob (you can also try another combination, e.g. "Volume Up" + "Power").
  3. Go to "Wipe data/factory reset" after the Recovery menu appears (use the volume knob to move and the power key to confirm the move).
  4. Confirm the wipe-down.
  5. Go back to the main menu and confirm the "Reboot system now" operation.

After a reboot, the Mystery MID-821 will turn on unlocked and you can activate debugging via the settings menu. However, after resetting via the recovery, all files will be deleted.

Share this page with your friends:

See also:



How to flash Mystery MID-821

How to root Mystery MID-821

Hard reset for Mystery MID-821

How to reboot Mystery MID-821

How to unlock Mystery MID-821

What to do if Mystery MID-821 won't turn on

What to do if Mystery MID-821 doesn't charge

What to do if Mystery MID-821 doesn't connect to PC via USB

How to take a screenshot on Mystery MID-821

How to reset FRP on Mystery MID-821

How to call recording on Mystery MID-821

How to update Mystery MID-821

How to connect Mystery MID-821 to TV

How to clear the cache on Mystery MID-821

How to backup Mystery MID-821

How to disable ads on Mystery MID-821

How to clear storage on Mystery MID-821

How to increase font on Mystery MID-821

How to share internet on Mystery MID-821

How to transfer data to Mystery MID-821

How to unlock bootloader on Mystery MID-821

How to recover photos on Mystery MID-821

How to record the screen on Mystery MID-821

How to find blacklist in Mystery MID-821

How to set up fingerprint on Mystery MID-821

How to block number on Mystery MID-821

How to enable auto-rotate on Mystery MID-821

How to set up or turn off an alarm on Mystery MID-821

How to change ringtone on Mystery MID-821

How to enable battery percentage on Mystery MID-821

How to turn off notifications on Mystery MID-821

How to turn off Google assistant on Mystery MID-821

How to turn off the lock screen on Mystery MID-821

How to delete app on Mystery MID-821

How to recover contacts on Mystery MID-821

Where is the recycle bin on Mystery MID-821

How to install WhatsApp on Mystery MID-821

How to set contact photo in Mystery MID-821

How to scan QR code on Mystery MID-821

How to connect Mystery MID-821 to computer

How to install SD card in Mystery MID-821

How to update Play Store in Mystery MID-821

How to install Google Camera in Mystery MID-821

How to turn off Mystery MID-821

How to charge Mystery MID-821

How to use the camera on Mystery MID-821

How to find lost Mystery MID-821

How to set password on Mystery MID-821

How to turn on 5g on Mystery MID-821

How to turn on VPN on Mystery MID-821

How to install apps on Mystery MID-821

How to insert a SIM card in Mystery MID-821

How to enable and configure NFC on Mystery MID-821

How to set time on Mystery MID-821

How to connect headphones to Mystery MID-821

How to clear browser history on Mystery MID-821

How to disassemble Mystery MID-821

How to hide an app on Mystery MID-821

How to download YouTube videos on Mystery MID-821

How to unblock a contact on Mystery MID-821

How to turn on the flashlight on Mystery MID-821

How to split the screen on Mystery MID-821

How to turn off the camera sound on Mystery MID-821

How to trim video on Mystery MID-821

How to check RAM in Mystery MID-821

How to bypass the Google account on Mystery MID-821

How to fix black screen on Mystery MID-821

How to change the language on Mystery MID-821

How to open engineering mode in Mystery MID-821

How to open recovery mode in Mystery MID-821

How to find and turn on a voice recorder on Mystery MID-821

How to make video calls on Mystery MID-821

Mystery MID-821 sim card not detected

How to transfer contacts to Mystery MID-821

How to enable/disable «Do not disturb» mode on Mystery MID-821

How to enable/disable answerphone on Mystery MID-821

How to set up face recognition on Mystery MID-821

How to set up voicemail on Mystery MID-821

How to listen to voicemail on Mystery MID-821

How to check the IMEI number in Mystery MID-821

How to turn on fast charging on Mystery MID-821

How to replace the battery on Mystery MID-821

How to update the application on Mystery MID-821

Why the Mystery MID-821 discharges quickly

How to set a password for apps in the Mystery MID-821

How to format Mystery MID-821

How to install TWRP on Mystery MID-821

How to set up call forwarding on Mystery MID-821

How to empty the recycle bin on Mystery MID-821

Where to find the clipboard on Mystery MID-821

How to Enable USB Debugging on Another Phones