Samsung I405 Stratosphere hard reset using buttons

Press and hold both VOLUME down and up buttons and POWER ON the phone.
Select wipe data / factory reset with Volume down button and press HOME button to hard reset Samsung I405 Stratosphere.
Samsung i405 hard reset

Samsung I405 Stratosphere hard reset via menu

Personal Data
Factory data reset
Use Factory data reset to return your phone to its factory defaults. This setting erases all data from your phone, including
your Google or other email account settings, system and application data and settings, and downloaded applications. It
will not erase current system software and bundled applications, or files stored on an installed memory card, such as music or
1. From the Home screen, press the Menu Key, then touch Settings ➔ Privacy.
2. Touch Factory data reset, then follow the prompts to perform the reset.

Clear storage
Clear stored credentials and reset the password.
Note: This setting only appears if you have installed encrypted certificates.
1. From the Home screen, press the Menu Key, then touch Settings ➔ Location & security.
2. Touch Clear storage to clear stored credentials and reset the password.

Use this method to hard reset your Samsung I405 Stratosphere phone: Enter *2767*3855#. Warning! All your data including contacts, messages etc. will be lost! Copy all your necessary data/Contacts/Messages etc. to SIM or make backup with SAMSUNG New PC Studio ,PC Sync on your PC before full reset!


General advice: Before you buy a new cell phone or new tablet, please try the following procedure to repair your device in a software way. First charge your battery, backup your important data if possible and in most cases take out SIM and SD card before doing factory reset. It is impossible to recover your data after doing a hard reset, so online backup is always important. For all of your data, a backup should be done on an external device, hard drive, raid system or media. With or without insurance, if your cell phone lost, damaged or stolen at least your invaluable data is backed up in a safe place. If you are about to sell your phone and you want to wipe your personal data, or if your phone affected with virus you have to do a hard reset. In some cases, you can delete the forgotten password or lock pattern from your device as well. All information is for devices with stock based ROMs. If you are using rooted device, always back up your EFS folder first, containing your IMEI info, etc.! Please also note, that a hard reset operation will not unlock your mobile phone's SIM lock or network lock, but it will remove the unlock pattern, remove the user password or PIN password (NOT the SIM card's 4 digit PIN code). Also note that the firmware version will not be affected in any way, it will not be downgraded, it will remain the same you are using and if you have rooted your device, root privileges remain also unaffected.