On Alcatel A206G flip phone, the screen shows INSERT SIM! error code with SIM installed.

The Unlock code is the one that you or the previous owner put on it. There is no way to know what code you put on it.

The only way to fix this is to do a Factory Reset and scrub it clean of all data and reload the operating system clean with no lock code.

How to Reset an Alcatel Phone: 11 Steps (with Pictures)

wikiHow https://www.wikihow.com > ... > Cell Phones
11 steps
1.
Turn off your Alcatel phone. Tap and hold the Power button until the screen shuts down. When the screen completely fades to black, then it is already off ...
2.
Press and hold the pound (#) key and Power button at the same time for about 3 to 4 seconds. You will be prompted that all the data will be deleted. If ...
3.
Select "Yes" to delete all data. Use the phone cursor on your keypad and scroll down to the "Yes" option. Press the OK button to select it. The OK button is ...

How to Perform Hard Reset Tracfone Alcatel A206G Flip ...

TracfoneUserManual.Net https://tracfoneusermanual.net > hard-reset-tracfone-al...
Hard Reset Alcatel A206G · Make sure to turn off the phone first. · Press "Power button" and "*" button for a couple of second. · A warning will show up asking if ...
.

Please try to take out the SIM card and insert again or change the SIM card for the new one.

If the phones battery was allowed to fully discharge you'll have to leave it charging for a few hours before it will even think about powering up.

Download and read the user manual at the Alcatel support website

As long as it uses the same technology, there are two ones that use a SIM are GSM, without a SIM are CDMA.

When the battery is fully charged the image of a battery
will display on the screen with 4 bars.

link to on line pdf manual
Alcatel A206G User Manual

Most appliances now days do not include the manual. You probably have to download the manual from the internet.

Hi Linda, If you've locked your phone through entering an incorrect pin number 3 times then you need a Puk code, Ring your service provider and they will give you the FREE Puk code.....
If you lock your phone again some time in the future and you're still with the same service provider you can use that same Puk code.. CHEERS..

Hi Charles,

Sara Jay says look here, How To Unlock Alcatel One Touch 20 00 OT 2000 OT 2000X and OT 2000D by... May 12 , 2014



Here is another look from January 2014. How To Unlock Alcatel One Touch 20 00 OT 2000 OT 2000X and OT 2000D by...



And here is a pictorial step by step with the case open to forward http://cdn.gsmarena.com/vv/newsimg/11/12/alcatel-ot918dn/gsmarena_001.jpg



Fare. Well.

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