Lock code factory reset issues - Nokia 5230 Cell Phone

If you have forgotten the code lock for your Sonic TV and cannot retune it, you may be able to reset it back to factory settings by performing a factory reset. However, please note that this will erase all custom settings and data, and revert the TV to its original state.
To perform a factory reset on your Sonic TV, follow these steps:

1. Turn off the TV using the power button.
2. Unplug the TV from the power outlet.
3. Press and hold the power button on the TV for 15-20 seconds.
4. While still holding the power button, plug the TV back into the power outlet.
5. Continue holding the power button for another 15-20 seconds, then release the button.
6. The TV should now reset to factory settings.

Please note that the steps may vary depending on the specific model of your Sonic TV. If you are unsure or if this method does not work, you may want to consult the instruction manual for your TV or contact the manufacturer for further assistance.

There are two types of lock.

A consumer set lock. The way to fix is to do a hard reset.

Method 2: Hard Reset/Factory Reset Using Master Reset Code (One)

1. Step 1: Grab your Nokia 3510i.
2. Step 2: Now, dial the code *2767*3855#.
3. Step 3: After dialing the above code, you will see the option "Restore Factory Settings".
4. Step 4: Simply, choose the option in order to start the factory resetting process.

More items...

How To Reset and Unlock Nokia 3510i

And a PUK Lock aka a SIM Lock

https://www.fixya.com/support/r26056685-phone_asking_puk_code

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i think you have got lock your ZTE phone because of FRP security feature of Google
you can unlock your phone by using bypass FRP bypass apk. After searching on internet i have got a great guide which has explained a detailed solution to unlock FRP
here is the link to the article :
Learn To Bypass FRP FRP Bypass Guide Download FRP Bypass Apk

Nokia 5000d hard reset
You can format your Nokia 5000 device by typing: * + 3 + call + Power on. Before the device is reset, you need to provide the lock code. The default lock code is 12345.
If it is not working try this code:
You can format your device by typing *#7370# in standby mode. Before the device is reset, you need to provide the lock code. The default lock code is 12345.
Some Nokia phone can be reset via this menu option
Press menu button or enter Menu > Settings > Phone > Phone management > Factory settings > Delete data and restore > YESRestore factory settings
To restore the phone back to factory conditions, select Menu > Settings > Rest. factory sett. and from the following options:
Restore settings only - to reset all preference settings without deleting any personal data
Restore all - to reset all preference settings and delete all personal data, such as contacts, messages, media files and activation keys
IMPORTANT!
Formatting the device will permanently erase all user data and settings as well as add-on applications and operator specific settings
goodluck

The best way to go about this issue is to hard reset your phone. But please do take note that doing so will wipe the data in your device. Once this is performed, everything will be set back to factory settings including the security code or lock code.

A factory reset may be available to clear that issue--contact Samsung? to see if possible how to reset it to factory----Also be aware a box feeding signal that was connected to the set with it ON may have locked that out.

hi dear.. please help me.. i forgot my NOKIA E63 restore factory settings lock code. please send the how to reset my lock code to [email protected]

You need to factory reset the mobile means You need to unlock it from factory lock..You can get the Unlock code here
http://www.unlocking4u.com/nokia-e63/rs6wp9/ and Unlock it from Your current Network lock ...Check code for country and it's Network locked Your Nokia E63.

I had the same issue with the same phone. By pure luck, I tried the last 4 digits of the phone number last used on the phone and it worked!