Here is how to perform Samsung SCH-R880 hard reset:
1. Turn off the phone
2. Press and hold the volume down key, the power key and the navigation key at the same time until you see a black screen with blue writing
3. Use the volume keys to select the factory reset.
SOURCE: lock code for nam2 settings
Ok i sent an email to sumsung and i got this response
Thank you for your email. If you switched the NAM to NAM2 you will need to calculate the code. Listed below are the steps on how to do so:
1.Obtain the Hexadecimal ESN of the phone. The ESN should be printed on the sticker on the back of the phone, under the battery. The Hexadecimal ESN is the one with letters and numbers.
2.Open Windows calculator by going to Start -> Run -> type in "calc", then click OK
In the Calculator, click "View" then "Scientific".
3.Click on Hex and type in the Hex ESN
4.Click on Dec for the decimal conversion and use the last four digits for the code on the handset
5.Once the code is entered and the menu can be accessed, switch the NAM to NAM1
SOURCE: Does my Verizon cell phone (Samsung SCH-U410) have a sim card?
No sim card. verizon has an application called Backup Assistant.. It is free if you havea My Verizon account. 1.99 if you dont. It is fast take about 2imutes.Thats if you are staying with Verizon changing , upgrading phones
SOURCE: my daughter locked her cell phone up by accident
the default is always one of these code try them all the last four digits of the phonenumber last programmed in the phone aka your number or 9999,1234,4321,0000,1111 if none of those work you can go the retail store for a flash they hook it to the computer and push software to the phone to correct the issue it takes five mins and its free its a common issue for them to correct if you change your lock code from the default in the future always set up a dummy contact with it in there so that you can easily look it up also please vote for me I'm trying to work my way up to expert level and I cant without your vote please
SOURCE: Hi, I need help, I have SAMSUNG Galuxy S (I9000),
Do this but make sure you may wan't to lose files:
1. Turn off the i9000 phone or take out the battery and reinsert it.
2. Hold the Volume Down button
3. Press and release the Power button
4. Select Clear Storage by pressing the Volume Down button
5. Press and release the Power button
6. Press Volume Up to confirm i9000 MATER RESET
Done!
You can reset your Samsung Acclaim SCH R880 by performing below instructions:
Press and hold the Volume key down + Optic pad/OK key + Power/Lock key 
Hope This helped. REMEMBER ALL DATA WILL BE LOST Including contacts,pictures,music etc
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