There are numerous reasons why it says “not registered”, maybe it’s defective or missing UICC (SIM card). It also might be corrupt radio firmware, mismatched hardware due to contradictory ROM, etc. In most cases, the reason is a non-provisioned device & carrier.
If you’ve been using a Sprint, Virgin Mobile, FreedomPop/Ting, Boost Mobile, Text Now compatible device, and your device happens to be activated, open your stock dialer and dial ##72786# then press YES on the SCRTN menu.
Because this will reset your device’s network, telephony, and RIL settings to factory default, reconfigures your telephony.db and telephony.journal libs, prompts an update of your PRL, and client-initiated profile. And the most important is it registers IMS of your device & carrier.let’s analyze with Digitalne.tv…
How to reset RCA 10 Viking Pro Tablet?
There are two ways of resetting, one is if you can access the device or bypass it and the other if your tablet is off.
The simplest and safest way is by navigating to Settings, Backup, and Reset Factory Data Reset, and restarting the tablet is a must to complete the process.
On the other hand, you can follow this way too, go to the Settings first, then Privacy, lastly, go for Factory data reset. But if you have an SD card, deselecting it in option is required.
And now, you can press the Reset Phone and Erase everything to make the process complete. This time you can restart the device or sometimes it will restart by itself.
Talking about hard reset, it can only be done if you don’t have access to your device or you can’t remember the password.
The first step is pressing the Volume Up + Power buttons at the same time until the RCA logo appears on the screen. In a matter of seconds, the Android bot will display.
After the bot displays, press and hold the Power button and then press the Volume Up button. Options will be displayed automatically, including the Wipe Data/Factory Reset.
Use the Volume keys to traverse and pressing the Power button will help you to select. Press yes “delete all user data” to validate hard reset.
After doing that, you’ll see “Data wipe complete”. Then restart the tabled using the Power button.
How to Reset RCA only Windows Tablet without volume button?
The first thing you need to do is press the button to get the options menu and it will show “Power off” and “Reboot”.
On the page where the menu is, hold down that “power off” option on your touch screen and also hold down the home button at the same time on the side of your tablet.
This will show up a screen to reboot into safe mode and hit yes for safe mode. After that, hold down your power and home buttons at the same time till the logo appears.
And then, let go of the two buttons and press the power button one more time and then hold alone the home button down until the menu option will show up.
Using the home button will help you to move down to factory reset and select the power button by pressing it.
Just wait until it says it’s complete then select the reboot by using the power button.
How to program an RCA tablet?
If you are going to turn on your tablet for the first time, you will be required to set up the following. Selecting the language is the first thing you need to do, then tap start and set the WIFI right after.
The next step is intuitive, if you have a Google Account you just have to select “Yes” then choose a network name to perceive more information or to connect to it, and if necessary enter the password.
Now you just have to sign in your preferred email address and password for your Google Account if you are asked, and if you don’t have a google account you can create it anytime.
After that, you’re almost done you just have to follow on what are the instructions displayed on the screen for the tablet to get ready.
How To Unlock Tablet if password, pattern and pin are forgotten?
On the phase where your desktop screen is locked, if the lock screen settings are locked by you to require a pattern but unfortunately cannot remember the pattern you made, try to enter the correct pattern five more times, or until it senses you that you can’t remember your pattern.
And after that, the “You have incorrectly drawn your unlock pattern 5 times” line will appear. With the line accompanied, just tap OK. You just have to tap the Forgot pattern button.
On the page where the “Account unlocks” screen shows up, use the on-screen keyboard to sign in your Google Account information.
And in the page where the” Draw an unlock pattern” appears, draw your new preferred pattern to have access again to your tablet.
How to Reset Tablet with previous Account Recovery Sync?
Being stuck because of the credentials being asked by your tablet, the process has a lot of ins and outs.
Make sure to not blink in every step in order to succeed as it is the only way to get past the FRP. Tap the back button if you’re on the page where the device is asking for the credentials of previous owners.
Press Add network and any word you type will do. Touch those letters for long then press Assist. To be redirected to the Permissions page, you must tap on Gmail.
Select the Manage apps by hitting the three-vertical dots and it will bring you to the Settings page. If you’re in the Settings, enter your own Google credentials to add another account and restart the device and when greeted with login details, but the information you saved.
Few things will be asked of you before getting to the home screen. You’re now able to reset it freely and delete previous accounts.
RCA Pro Viking Tablet’s one of the most reported problems for those who obtained a new RCA Viking is that they have to do a reset for their tablet before they can use it.
By fair means, there are credentials are stored already that lead you to a problem of removing them before actually arriving on the home screen.
Apply the steps that have been mentioned above again if you failed to do it at first.