Reset FRP lock on Rockchip RK3399 (OP1)

Users of Android-based devices may encounter problems during the activation of their Google account. If a user can’t pass authorization, they have probably encountered the so-called Factory Reset Protection function. To activate the device and continue using it, you must reset FRP. How to accomplish this without damaging your smartphone?

What is FRP Used For

The abbreviation stands for Factory Reset Protection. This feature first appeared in Android 5.1.

As most people know, the developers of the operating system are trying to protect the smartphones of their users. To this extent, FRP doesn’t allow a person that stole a mobile device to activate it for further use. That is, when trying to reactivate the device, the attacker will see a message on screen stating that the smartphone only supports the owner's Google account.

Of course, Factory Reset Protection is a useful feature. However, problems with activating a new account can also occur with a person that bought a used smartphone. In this situation, there is no theft involved. Still, the buyer doesn’t have the option to activate their account.

How to Bypass FRP on Rockchip RK3399 (OP1)

Unfortunately, the problem with activating a new Google account occurs quite often when the smartphone is purchased used. There are 2 ways to resolve the issue:

the official way;
the unofficial way;

These names are rather arbitrary. Still, they adequately explain what operations the user will have to perform. In the first case, the user must contact the previous owner of the smartphone to reset their Google account. In the second option, FRP bypass occurs by its own means without using the data of the previously established account.

The Official Way

This method is used under the assumption that the current owner of the Rockchip RK3399 (OP1) smartphone has the means to contact its previous owner. To officially reset FRP, you will need the previous Google account data: the linked email address and password.

In the Greetings window or phone settings enter the details of the previous account.
Log in on the PC in the same way.
On the computer, unlink the smartphone among the listed devices.
On the phone, go to the Google account settings and delete the account.
In the developer settings, enable the Unlock OEM option.

If everything is done correctly, FRP will be reset and the corresponding device will be unlocked. After rebooting the smartphone, you can enter your Google account data.

The Unofficial Way

There are several ways to bypass the Google Account on Rockchip RK3399 (OP1) without having email and password information.

The 1st Option:

Insert a SIM card into the phone, turn it on.
Skip the starting menu for device activation.
Call the smartphone.
Accept the call and save the new contact.
In the dialer, enter the following command: *#*#4636#*#*.
Press the Back button in the opened menu to go to phone settings.
Go to Recovery and Reset, then Backup and Restore.
Disable data backup and perform a factory reset.

The 2nd Option:

Turn on the phone with the installed SIM card.
Connect to Wi-Fi at the primary boot-up.
Enter some letters and highlight the text.
Select the Share option to send this text via SMS.
Put 112 as the receiving number.
A notification will appear that the message has not been delivered after you attempt to send the text. This is just what we need.
Open the texting menu with the 112 number and press the Call button.
Delete 112 and enter the following command: *#*#4636#*#*.
Similarly to the previous method, go to the Recovery and Reset menu, reset your smartphone back to factory settings and restart.

Whichever reset method the user chooses, it will be possible to enter the details of a new Google account after restarting the device. The FRP function should be disabled.

What to Do if Nothing of the Above Worked

All people buying smartphones used are advised to ask the previous owner for documentation. This will help you bypass FRP without having to tamper with your mobile device.

If it’s not possible to find the data of the old account to disable it, you visit the store where the device was first purchased. The info is indicated on the receipt or warranty certificate. If you visit the store, you will need to take all the documents that come with the smartphone. The telecom store employee will help you with Factory Reset Protection. If the previous owner sold the phone without its packaging, your only option is to use the unofficial reset methods.

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