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My Samsung SGH-L770 kepps on restarting

I have a Samsung SGH-L770 slide phone that just keeps re-starting. I turn it on, the samsung logo appears and a progress bar starts up along the bottom of the screen. when it gets all the way across it shuts off and re-starts. My Phone is NOT second hand.Help.

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I think there is a problem with the phone, you need to have it repaired and evaluated. You can also try using a different battery on the phone to isolate the issue.

Posted on Jul 03, 2009

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Forgot my password for samsung e 390


Hello Dear,
Type the code * 2767 * 3855 # and the phonewill reset to the factory settings. Other interestingcodes for Samsung phones: * # 0228 # BatteryInformation
* # 0673 # Test MP3
* # 0782 # Date and Time
* # 0842 # VibrationTest
* # 1111 # SoftwareVersion FTA
* # 1234 # Softwareversion (short)
* # 1235789 # StateControl of Integrity
Hardware Version * #2222 # FTA
* # 232337 # BluetoothBroadcast Address View
* # 32489 # State ofCiphering
* # 742695 # Softwareversion, Hardware Version, Date of Last Calibration Radiofrequency
(Equivalent to * # 8999* 8376263 #)
* # 8999 * 8376263 #Software version, Hardware Version, Date of Last Calibration Radiofrequency
(Equivalent to 742 695* # #) * # 1546792 * #Admin settings (WARNING: not to experiment!)
(* # * 73561 # OperatorCode, where applicable)
(* # 2456987 * # MasterKey) # * # 123580 TestMode main menu (not to experiment!, Equivalent to * # 9998 * 324 #)
* # 9998 * 324 # TestMode main menu (not to experiment!, Equivalent to * # 123580 #)
* # 0002 * 28346 # ItemMenu Handset Volume (sub-menu of the Test Mode Menu)
* # 0011 # NetworkConnection Status
(Same as in Test Mode,which not only returns to the main menu of the Test Mode)
* # 7412359 # Test MenuRadiofrequency
(Same as in Test Mode,which not only returns to the main menu of the Test Mode)
* # 9999 * 0 # NetworkMonitor
(Same as in Test Mode,which not only returns to the main menu of the Test Mode) * # 7465625 # setthe Phone List of Blocks # 7465625 * 27 *code # Remove the "PC Lock"
# 7465625 * 638 * Code# Remove the "Network Lock"
# 7465625 * 685 * Code# Remove the "Multi Lock"
# 7465625 * 746 * Code# Remove the "SIM Lock"
# 7465625 * 77 * code #Removes the "SP Lock"
# 7465625 * 782 * Code# Remove the "Subset Lock"
# 7465625 * 228 #Disable "Activa Lock"
# 7465625 * 2827 #Disable "Auto CP Lock"
# 7465625 * 28638 #Disable "Auto Network Lock"
# 7465625 * 28685 #Disable "Auto Multi Lock"
# 7465625 * 28746 #Disable "Auto SIM Lock"
# 7465625 * 2877 #Disable "Auto SP Lock"
# 7465625 * 28782 #Disable "Auto Subset Lock" Malicious code:
* 2767 * 3855 #Reset Full Phone (back as "just bought") * 7465625 * 27 *code # Set the "PC Lock"
* 7465625 * 638 * Code# Set the "Network Lock"
* 7465625 * 685 * Code# Set the "Multi Lock"
* 7465625 * 746 * Code# Set the "SIM Lock"
* 7465625 * 77 * code #Set the "SP Lock"
* 7465625 * 782 * Code# Set the "Subset Lock"
* 7465625 * 228 #Enable "Activa Lock" to restart the phone
* 7465625 * 2827 #Activate "Auto CP Lock" to restart the phone
* 7465625 * 28638 #Turn on "Auto Network Lock" to restart the phone
* 7465625 * 28685 #Turn on "Auto Multi Lock" to restart the phone
* 7465625 * 28746 #Turn on "Auto SIM Lock" to restart the phone
* 7465625 * 2877 #Activate "Auto SP Lock" to restart the phone
* 7465625 * 28782 #Turn on "Auto Subset Lock" to restart the phone These codes areworth a bit more for all Samsung phones, in particular: Samsung E390,Samsung Ultra Video F500, Samsung F510, Samsung F520, Samsung F700, Samsung SGHi520, Samsung i600, Samsung i620, Samsung L760, Samsung P910, Samsung P920,Samsung P940, Samsung SCHB100, Samsung SGH F600, Samsung SGH i550, Samsung SGHJ750, Samsung SGH I600, SGH i607 Samsung Blackjack, Samsung SGH P930, SamsungSGH Z630, Samsung Ultra Edition 12.1 (U700), Samsung Z100, Samsung Z105u,Samsung Z107V, Samsung Z110, Samsung Z130, Samsung Z140, Samsung Z140V, SamsungZ150, Samsung Z170, Samsung Z220, Samsung Z230, Samsung Z300, Samsung Z310, SamsungZ320, Samsung Z330, Samsung Z350, Samsung Z360, Samsung Z370, Samsung Z400,Samsung Z500, Samsung Z510, Samsung Z520, Samsung Z540, Samsung Z550 , SamsungZ560, Samsung Z600, Samsung Z610, Samsung Z620, Samsung Z650i, Samsung Z700,Samsung Z710, Samsung Z720, Samsung ZV10, Samsung ZV30, Samsung ZV40, SamsungZV50, Samsung ZV60, Samsung ZX10, Samsung ZX20. WARNING: Someof these codes may cause blockage or malfunction of the cell, therefore, it isunderstood that you use them at your own risk.

Dec 04, 2011 | Samsung SGH-E390 Cellular Phone

2 Answers

Want to unlock phone samsungL770


Hi you can unlock your Samsung L770 using the unlock code. you can get the unlock code from this site http://www.theunlockspot.com/ at reliable cost.


Do not enter any wrong unlock codes on your Samsung L770 mobile phones. If you enter over a certain amount of wrong unlock codes on your Samsung L770 mobile phone, your phone may get hard locked and sometimes become unusable.Method 1:

1 - Switch ON your Samsung L770 with a NOT ACCEPTED SIM Card.
2 - Samsung L770 will ask for "Password".
3 - Enter the Unlock Code.

OR (if the Samsung L770 shows "Insert Correct SIM Card")

Method 2:

1 - Switch ON your Samsung L770 with a NOT ACCEPTED SIM Card.
2 - Don't bother about what's being displayed on your Samsung L770.
3 - Compose : #0111*CODE#.

NOT ACCEPTED: We mean, to use a sim card from a network other than the network your Samsung L770 is locked to.
CODE: Its the unique Unlock Code for your Samsung L770.

If method 2 does not work, you can try method 2 again but this time without any SIM card on your Samsung L770.


Aug 08, 2010 | Samsung L770 Triband 3G HSDPA 2MP A2DP...

1 Answer

Samsung SGH-T429 ERROR: 41000001


keep holding end when u turn it on

Sep 21, 2009 | Samsung SGH-T429 Cellular Phone

2 Answers

Samsung SGH-L770 mobile keeps re-starting before os starts up


Have you tried a Factory Reset ( Master Reset) should do the trick

Mar 23, 2009 | Cell Phones

1 Answer

Samsung L770 unlocking


Contact your service provider and they can unlock it for you.

Feb 25, 2009 | Samsung SGH-L760v Cellular Phone

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