How to restore lost imei and signal on lg p920

Samsung Galaxy Mini GT S5570: Need OEM Firmware ROMs:

Hello. The following attached website link has a list of all the Firmware versions available from very first one to present time, and for the specific regions.. Make sure you know which one you need.. see the list below

>> only for the Samsung Galaxy Mini GT S5570:
(note: only the BOLDED ones are available for download)

This will at least give you an idea which one you need to search for, if it is not available to download at this particular website. Then you can be more specific in asking what you need..

website where you can get the bolded OEM Firmware ROMs from:
New Techie Samsung Galaxy Mini S5570 Original Stock ROMs Firmware Download...

Europe Firmware - European version of Samsung Galaxy Mini S5570 Newest update:

S5570XWKTZ - NEE PDA: S5570XWKTH
CSC: S5570NEEKT5
MODEM: S5570XWKT9
OPS file: TASS.OPS
Version: Android 2.3.6 Gingerbread
Country: Nordic (Unbranded/SIM-Free)
Build Date: November 2013

S5570XWKTZ - XEZ PDA: S5570XWKTZ
CSC: S5570XEZKS1
MODEM: S5570XWKT9
OPS file: TASS.OPS
Version: Android 2.3.6 Gingerbread
Country: Czech Republic (Unbranded/SIM-Free)
Build Date: November 2013

S5570XWKTZ - TSI PDA: S5570XWKTH
CSC: S5570TSIKT2
MODEM: S5570XWKT9
OPS file: TASS.OPS
Version: Android 2.3.6 Gingerbread
Country: Ireland (Unbranded/SIM-Free)
Build Date: November 2013

S5570XWKTX PDA: S5570XWKTX
CSC: S5570OPPLJ1
MODEM: S5570XWKT8
OPS file: TASS.OPS
Version: Android 2.3.6 Gingerbread
Country: Autralia (Unbranded/SIM-Free)
Build Date: October 2012

S5570XWKTH -XEO PDA: S5570XWKTH
CSC: S5570OXXKT9
MODEM: S5570XWKTH
OPS file: TASS.OPS
Version: Android 2.3.6 Gingerbread
Country: Poland (Unbranded/SIM-Free)
Build Date: February 2012

S5570XWKTH- PRT PDA: S5570XWKTH
CSC: S5570PRTKT1
Phone: S5570XWKTH
OPS file: TASS.OPS
Version: Android 2.3.6 Gingerbread
Country: Poland (branded)
Build Date: February 2012

S5570XWKTH - PLS PDA: S5570XWKTH
CSC: S5570PLSKT1
CSC: S5570XWKT4
OPS file: TASS.OPS
Version: Android 2.3.6 Gingerbread
Country: Poland Plus (branded)
Build Date: February 2012

S5570XWKT7 - CRG PDA: S5570XWKT7
CSC: S5570CRGKT1
OPS file: TASS.OPS
Version: Android 2.3.5 Gingerbread
Country: Croatia
Build Date: November 2011

S5570XWKS7 - EUR PDA: S5570XWKS7
CSC: S5570OXXKS2
OPS file: TASS.OPS
Version: Android 2.3.5 Gingerbread
Country: Greece
Build Date: November 2011

S5570XWKS7 - ATO PDA: S5570XWKS7
CSC: S5570OXXKS2
OPS file: TASS.OPS
Version: Android 2.3.5 Gingerbread
Country: Austria
Build Date: November 2011

S5570XWKS7 - XEH PDA: S5570XWKS7
CSC: S5570OXXKS2
OPS file: TASS.OPS
Version: Android 2.3.5 Gingerbread
Country: Hungary
Build Date: November 2011

S5570XWKS7 - AUT
PDA: S5570XWKS7
CSC: S5570OXXKS2
OPS file: TASS.OPS
Version: Android 2.3.5 Gingerbread
Country: Switzerland
Build Date: November 2011

S5570XWKS7 - FOP PDA: S5570XWKS7
CSC: S5570OXXKS2
OPS file: TASS.OPS
Version: Android 2.3.5 Gingerbread
Country: Spain
Build Date: October 2011

S5570XWKS7 - XEN PDA: S5570XWKS7
CSC: S5570OXXKS2
OPS file: TASS.OPS
Version: Android 2.3.5 Gingerbread
Country: Netherlands
Build Date: October 2011

S5570XWKS1 PDA : S5570XWKS1
CSC: S5570SERKS1
OPS file: TASS.OPS
Version: Android 2.3.5 Gingerbread
Country: Russia
Build Date: September 2011

S5570XWKQG PDA: S5570XWKQG
CSC: S5570OXFKQ6
OPS file: TASS.OPS
Version: Android 2.3.4 Gingerbread
Country: UK
Build Date: September 2011

S5570XXKPK PDA: S5570XXKPK
CSC: S5570SERKPK
OPS file: TASS.OPS
Version: Android 2.3.4 Gingerbread
Country: Russia
Build Date: July 21 2011

S5570XXKPJ PDA: PDA S5570XXKPJ
CSC: CSC S5570SERKPJ
OPS: TASS.OPS
Version: Android 2.3.4 Gingerbread
Build Date: June 22 2011

S5570XXKPI PDA: S5570XXKPI
CSC: S5570SERKPI
OPS: TASS.OPS
Version: Android 2.3.4 Gingerbread
Build Date: June 02 2011

S5570XXKPF PDA: S5570XXKPF
CSC: S5570SERKPF
OPS: TASS.OPS
Version: Android 2.3.3 Gingerbread
Build Date: May 07 2011
Released: May 31 2011


ASIA Firmware - Samsung Galaxy Mini S5570 Asian Stock ROMs

S5570DXKT6
PDA: S5570DXKT6
CSC: S5570OLBKT3
OPS: TASS.OPS
Version: Android 2.3.6 Gingerbread
Country: Thailand
Released: November 2011

S5570DDKQ7 - INU
PDA: S5570DDKQ7
CSC: S5570ODDKQ6
OPS: TASS.OPS
Version: Android 2.3.6 Gingerbread
Country: India
Released: November 2011

S5570DDKQ7 - INS
PDA: S5570DDKQ7
CSC: S5570ODDKQ6
OPS: TASS.OPS
Version: Android 2.3.6 Gingerbread
Country: India
Released: November 2011

S5570DXKPD - XSE
PDA: S5570DXKPD
CSC: S5570OLBKPD
OPS: TASS.OPS
Version: Android 2.3.4 Gingerbread
Country: Indonesia
Released: September 2011

S5570DXKPD - XME
PDA: S5570DXKPD
CSC: S5570OLBKPD
OPS: TASS.OPS
Version: Android 2.3.4 Gingerbread
Country: Malaysia
Released: September 2011

S5570DXKPD - XSP
PDA: S5570DXKPD
CSC: S5570OLBKPD
OPS: TASS.OPS
Version: Android 2.3.4 Gingerbread
Country: Singapore
Released: September 2011

S5570DXKPD - SIN
PDA: S5570DXKPD
CSC: S5570OLBKPD
OPS: TASS.OPS
Version: Android 2.3.4 Gingerbread
Country: Singapore Singtel
Released: September 2011

S5570DXKPD - XTE
PDA: S5570DXKPD
CSC: S5570OLBKPD
OPS: TASS.OPS
Version: Android 2.3.4 Gingerbread
Country: Philippines Sun Cellular
Released: September 2011

S5570DXKPD - GLB
PDA: S5570DXKPD
CSC: S5570OLBKPD
OPS: TASS.OPS
Version: Android 2.3.4 Gingerbread
Country: Philippines Globe
Released: September 2011

S5570DXKPD - SMA
PDA: S5570DXKPD
CSC: S5570OLBKPD
OPS: TASS.OPS
Version: Android 2.3.4 Gingerbread
Country: Philippines Smart
Released: September 2011

S5570DXKPD - XXV
PDA: S5570DXKPD
CSC: S5570OLBKPD
OPS: TASS.OPS
Version: Android 2.3.4 Gingerbread
Country: Vietnam
Released: September 2011

S5570ZSKPB
PDA: S5570ZSKPB
CSC: S5570OZSKPB
OPS: TASS.OPS
Version: Android 2.3.4 Gingerbread
Country: China, Hong Kong
Released: August 20, 2011

S5570ZSKD2
PDA: S5570ZSKD2
CSC: S5570OZSKD2
OPS: TASS.OPS
Version: Android 2.2.1 Froyo
Country: China, Hong Kong
Released: April 03 2011

S5570DDKC1
PDA: S5570DDKC1
CSC: S5570ODDKC1
OPS: TASS.OPS
Version: Android 2.2.1 Froyo
Country: India
Released: April 03 2011

S5570ZSKA3
PDA: S5570ZSKA3
CSC: S5570OZSKA5
OPS: TASS.OPS
Version: Android 2.2.1 Froyo
Country: China, Hong Kong
Released: January 30 2011

S5570DXKA3
CSC: S5570OLBKA3
OPS: TASS.OPS
Version: Android 2.2.1 Froyo
Country: Indonesia, Malaysia, Philippines, Singapore, Thailand, Vietnam
Released: January 08 2011

S5570DXKA8
PDA: S5570DXKA8
CSC: S5570OLBKA8
OPS: TASS.OPS
Version: Android 2.2.1 Froyo
Country: Indonesia, Malaysia, Philippines, Singapore, Thailand, Vietnam
Released: January 2011

S5570DXKB1
PDA: S5570DXKB1
CSC: S5570OLBKB1
OPS: TASS.OPS
Version: Android 2.2.1 Froyo
Country: Indonesia, Malaysia, Philippines, Singapore, Thailand, Vietnam
Released: January 2011


Arabic Firmware - Middle East Samsung Galaxy Mini GT-S5570 Stock ROMs

S5570JPKS1
PDA: S5570JPKS1
CSC:S5570OJPKS1
Version: Android 2.3.5 Gingerbread
Country: Egypt
Released: November 2011

S5570JPKQ8
PDA: S5570JPKQ8
CSC: S5570OJPKQ7
Version: Android 2.3.4 Gingerbread
Country: Middle East
Released: September 16, 2011

S5570JPKC1
PDA: S5570JPKC1
CSC: CSC_S5570OJPKC1
Version: Android 2.2.1 Froyo
Country: Middle East
Released: March 04 2011

S5570JPKA3 PDA: S5570JPKA3
CSC: CSC_S5570OJPKA4
Version: Android 2.2.1 Froyo
Country: Middle East
Released: January 18 2011


Turkish Firmware - Samsung Galaxy Mini GT-S5570

S5570OJVKT1
PDA: S5570OJVKT1
Phone: S5570OJVKT1CSC: S5570FWDKT1
Version: Android 2.3.6 Gingerbread Country: MoroccoReleased: November 2011


Latin America Firmware - Samsung Galaxy Mini GT-S5570L / GT-S5570B

S5570LWMKPO PDA: S5570LWMKPO
CSC: S5570LCHTKP6
Version: Android 2.3.5 Gingerbread
Country: Chile (Telefonica)
Released: December 2011

S5570LWMKPJ PDA: S5570LMWKPJ
CSC: S5570LUUBKP8
Version: Android 2.3.4 Gingerbread
Country: Trinidad and Tobago
Released: November 2011

S5570LWMKPJ PDA: S5570LMWKPJ
CSC: S5570LUUBKP8
Version: Android 2.3.4 Gingerbread
Country: Panama
Released: November 2011

S5570BVJKPB PDA: S5570BVJKPB
CSC: S5570BZTOKP5
Version: Android 2.3.4 Gingerbread
Country: Brazil
Released: November 2011

S5570LWMKPE PDA: S5570LWMKPE
CSC: S5570LUUBKP7
Version: Android 2.3.5 Gingerbread
Released: September 2011

S5570BVJKP8 PDA: S5570BVJKP8
CSC: S5570BZTOKP5
Version: Android 2.3.4 Gingerbread
Country: Brazil
Released: September 2011


Provider Firmware - carrier branded version of Samsung Galaxy Mini

S5570XWKTZ - CPW PDA: S5570XWKTZ
CSC: S5570CPWLL1
MODEM: S5570XWKT9
OPS file: TASS.OPS
Country'Provider: United Kingdom (Carphone Warehouse)
Version: Android 2.3.6 Gingerbread
Build Date: January 2012

S5570XWKTZ - VDZ PDA: S5570XWKTZ
CSC: S5570VDCKT2
MODEM: S5570XWKT9
Country'Provider: Czech Republic (Vodafone)
Version: Android 2.3.6 Gingerbread
Build Date: January 2012

S5570BVKT6 PDA: S5570BVKT6
CSC: S5570EVRKT2
MODEM: S5570BVKT3
Country'Provider: United Kingdom (Everything E)
Version: Android 2.3.6 Gingerbread
Build Date: January 2012

S5570XWKQG - O2U PDA: S5570XWKQG
CSC: S5570O2UKQ4
OPS file: TASS.OPS
Country'Provider: United Kingdom (O2)
Version: Android 2.3.6 Gingerbread
Build Date: November 2011

S5570XWKS7 - BHT PDA: S5570XWKS7
CSC: S5570OXFKS2
OPS: TASS.OPS
Version: Android 2.3.5 Gingerbread
Country'Provider: Bosnia and Herzegovina (BH TELECOM)
Released: November 2011

S5570XWKS7 - VDH PDA: S5570XWKS7
CSC: S5570OXXKS2
OPS: TASS.OPS
Version: Android 2.3.5 Gingerbread
Country'Provider: Hungary (VDH)
Released: November 2011

S5570XWKS7 - PAN PDA: S5570XWKS7
CSC: S5570OXXKS2
OPS: TASS.OPS
Version: Android 2.3.5 Gingerbread
Country'Provider: Hungary (Telenor)
Released: November 2011

S5570XWKS7 - DBT PDA: S5570XWKS7
CSC: S5570DBTKS1
OPS: TASS.OPS
Version: Android 2.3.5 Gingerbread
Country'Provider: Germany (Debitel)
Released: October 2011

S5570XWKS7 - HUI PDA: S5570XWKS7
CSC: S5570HUIKQ6
OPS: TASS.OPS
Version: Android 2.3.5 Gingerbread
Country'Provider: Italy (H3G)
Released: October 2011

S5570XWKQ7 - PAN PDA: S5570XWKQ7
CSC: S5570OXXKQ6
OPS: TASS.OPS
Version: Android 2.3.6 Gingerbread
Country'Provider: Hungary (Telenor)
Released: July 2011

S5570MGKS2 PDA: S5570MGKS2
CSC: S5570MNKS1
OPS: TASS.OPS
Version: Android 2.3.5 Gingerbread
Country'Provider: Spain (Moviestar)
Released: October 2011

.

Do you mean the network unlock?You can get the unique unlock code for your LG 3D Stereoscopic Phone(LG Optimus 3D P920) from Simpleunlocking.com and remove the network lock easily by following the free unlock instructions from Mobileunlockguide.com and remove the network lock very easily.

Hi visit Mobileunlocksolutions.com to unlock your LG Optimus P920 3D mobile from network lock .Here they ask you the network name to which your mobile is locked and the IMEI number of your mobile .Then at last they deliver you code to unlock your mobile.

This may be helpful

http://webtrickz.com/guide-to-install-android-2-3-4-gingerbread-custom-rom-on-lg-optimus-one-step-by-step-instructions/

First Option:
Phone in the Other Sim and check the Phone Network Signal If Network Signal Problem not Solved So
Secend Option:
Your Phone Network IC Fault So Please change Network IC
And Network Signal Problem will Solved
if it is there isn't much you can do on this side of the network.
Contact your phone company.

THERE IS AN UPDATE ANDROID 2.3 GINGERBREAD .....

Goto Phone Information where Android version will be displayed there serch for a option "Update" if its there u can upgrade to the Gingerbread or else u hav to use Froyo.
goodluck

Procedure to update Samsung Galaxy S with Gingerbread 2.3 version:

Before we proceed to the updating process, please note that your phone needs to be rooted because your current file system must be converted to EXT4 which can be done with the help of latest version of Voodoo Lag fix. Also you need to backup all your data as there is a high probability that you may lose data after the updation. And also you must have Busybox in your device.

• Firstly, you will have to download two files which are system-dump-as-root.tar.gz and also nsonsgs-v3.tar.

• Now, you need to copy the file system-dump-as-root.tar.gz on the root of your SD card after which you will have to run these commands,

adb shell
su
cd /data
mkdir gingerbread
cd gingerbread
busybox tar zxvf /sdcard/system-dump-as-root.tar.gz
mkdir data
busybox cp -a /efs efs
sync
reboot download

• After this it is time to unzip nsonsgs.tar.zip to nonsgs.tar

• Now, you will have to flash the kernel with ODIN client with NO PIT and NO Repartition selected. And this is it, Your Galaxy S will now run the Gingerbread 2.3 version. At any point of time if you wish to move back to the Froyo update then you just need to flash it again with the froyo ROM back by using the Odin but before that make sure that it must support the EXT4 file system or else your device may become unusable.

Download it here Good luck.
http://downloadcenter.samsung.com/content/UM/201103/20110325170036476/GT-S5660_UM_EU_Eng_Rev.1.0_110222.pdf
http://www.userguidemanual.com/samsung-galaxy-gio-gt-s5660-manual-user-guide-froyo-gingerbread/#tabs-0-4

It will take the Gallaxy back to the settings you got when you first received it. So if you had 2.1, then this will roll it back to 2.1, and you loose anything you put on it.