We are a cell phone and mobile electronics store located in the heart of Hialeah. We service companies such as Simple Mobile, H2O, Net10, RedPocket, Spot Mobile, T-Mobile, AT&T, Ultra, etc. The store also has repair services. Please come by, visit us.
ADDRESS:3777 E 4 Ave Hialeah, FL, 33013 (786) 431-6051
Description: This is a guide (based similar to my previous guide for the Verizon Galaxy S III) that will help you flash a 99.9% stock factory image for the Verizon Galaxy S4 overwriting every partition on the device back to stock. The ONLY major change I have made is for your convenience I have modified the factory image to keep all your data/apps/settings and internal storage partition intact. This method should help you restore from any soft-brick that you may encounter without having to wipe your data.
Minor Warning: Please note that if you had any special mods that you had to manually flash before or move on the system partition (like Google Wallet, AOSP 4.2 apps like camera and gallery, etc...) they will be lost as you are overwriting your system partition to factory stock. Please make sure to do the needful with your mods before following this guide (for example resetting the Google Wallet app).
Step 1 - Preparation
Quote:
Download and Install Samsung Official USB Drivers - Link
Having the root access of an Android device is what essentially makes Android world going. Not many like to stick to stock capabilities and functionality. But OEMs seem to despise it and hence the losing of warranty with rooting your device. Thankfully though, Samsung smart phones aren’t very hard ones to unroot and reclaim warranty when you need to. Follow this tutorial to unroot Samsung Galaxy S4 and reclaim warranty of your Android phone. This tutorial applies to every variant of SGS4 and also ends with some instructions to fix bootloop problem.
Required files and prerequisites to unroot Samsung Galaxy S4 and reclaim warranty:
Required files: Please select the file appropriate for your SGS4 variant. To check your device model, go to Settings > More tab > About
Samsung Galaxy S4 international GT-I9500: download
To reclaim warranty on your Galaxy S4, download the Triangle Away app from Play Store. Also download the Odin3_v3.04.Zip ODIN tool. Download the relevant firmware from this link according to your device model, country code.
Create a backup of all important data in your Galaxy device.
Download and installUSB drivers for Galaxy S4 in your computer.
Enable USB debugging option by pressing Menu > Settings > Applications. Navigate and tap on Developer Options to ensure that USB Debugging is enabled.
Ensure that your SGS4 carries more than 70% of charge.
How to unroot your Samsung Galaxy S4:
Open the app drawer and run Triangle Away app downloaded earlier and follow the on screen instructions to reset the flash binary counter to zero.
Triangle Away app is capable of making your device system think that it is not rooted thus enabling you to reclaim warranty.
To completely unroot your Samsung Galaxy phone, boot into Download mode: press and hold Volume Down, Center and Power keys together for a few seconds until you see a warning screen. Now press Volume Up to enter into Download mode.
Open ODIN folder and run the exe. Connect your SGS4 to PC using a data cable.
The device drivers would be installed and then Odin will detect the phone indicated by the ID:COM port turning to Blue and an “Added!!” message shown in the message box on Odin.
Ensure that only Auto Reboot and F Reset Time checkboxes are selected. Now click on PDA and select the firmware file with .tar.md5 extension.
Once selected and checking the settings, press the START button to initiate installation.
Once the installation is successfully finished, you will get a PASS!! message in Odin and your SGS4 will reboot automatically.
Add-on: how to fix bootloop on Galaxy S4:
At times, Galaxy S4 gets stuck on the Samsung logo for more than 5 minutes and is caught into a bootloop. When it happens, follow the instructions below:
Pull out the battery, wait for about 30 seconds and then put the battery back in its place.
Boot the device into Stock Recovery mode by holding down Volume Up, Center and Power keys till the Samsung logo blinks twice. Release the Power button then but keep other two keys pressed till you see a blue menu. Use the volume keys to scroll and power keys to select.
From the menu, wipe data: select wipe data/factory reset option followed by wipe cache partition. Finally reboot the system by selecting reboot system now.
En este Tema veremos la importancia de la carpeta EFS, como hacer un BackUp y tambien como restaurarlo, usando distintas herramientas.
Que es la carpeta EFS
En este tutorial vamos a ver como hacer un Backup a la carpeta EFS. En esta carpeta se encuentra los archivos que contienen datos muy importantes de nuestro terminal como por ejemplo IMEI o PRODUCT CODE. En muchas ocasiones, al flashear una nueva rom el proceso sobre-esbribe esta carpeta y la terminal perdera conexion, ya que no podra registrar el IMEI en la red. Los datos de la carpeta EFS contienen información vital y única de la terminal. Para prevenir la perdida de los mismos, les enseñaremos a realizar copia de seguridad y a restaurarlos, aun cuando no haya una copia de la carpeta EFS. Aclaramos que estos datos son intransferibles, es decir, no podemos restaurar a partir de una copia que no haya sido creada en nuestra terminal.
Contenido
nv_data.bak : El más importante contiene información de IMEI, PRODUCTCODE, SIM UNLOCK. nv_data.bak.md5 : Checksum del anterior Muy importante. nv_ta.bin da: Copia funcional de él .nv.data.bak debería ser igual al .bak en tamaño. nv_data.bin.md5 : Checksum del fichero anterior, si lo borras, al arrancar de Nuevo te lo crea. nv_sate t: No se sabe para que es solo que si lo borras al reiniciar se crea automáticamente. nv2.bak : SOLO FROYO Este archivo es el encargado en Froyo de gestionar todos estos datos. nv2.bak.md5 : SOLO FROYO Checksum del anterior.
Carpeta ANDROID (vacía)
Carpeta IMEI: bt.txt: No se sabe para que es. mps_code.dat : Contiene la información referente al SALES CODE (Configuración regional).
Importancia de los archivos NV_DATA.BAK y NV_DATA.BAK.MD5
El archivo nv_data.bak contiene entre otra información el IMEI, PRODUCT CODE, CÓDIGOS DE DESBLOQUEO, etc El archivo nv_data.bak.md5 es el Cheksum del archivo anterior, en caso de modificar el primero, el Cheksum es incorrecto por lo que no hará su función. Nuestro SGS2 siempre funciona con el nv_data.bin (Una copia que crea automáticamente del nv_data.bak
Diferencias entre PRODUCT CODE y SALESCODE
SALESCODE: Nos indica la configuración regional que tenemos seleccionada.
PRODUCTCODE: Nos indica para que País está fabricado y a que operadora está asociado.
Restaurar un IMEI corrupto sin backup previo
Elementos necesarios
- Root Explorer o similar (ES Explorer) - Carpeta EFS (no hace falta tener un backup de esta carpeta anterior a la desaparición del IMEI, pero sí tiene que existir esta carpeta en el teléfono - Terminal con acceso root
Restaurar IMEI corrupto en 9 pasos
1- Con el Root Explorer realizar una copia de la carpeta EFS a la tarjeta SD Para más seguridad, se recomienda hacer una segunda copia de dicha carpeta a la PC, en el caso de que alguna vez formateen la tarjeta de memoria.
2- Una vez hechas ambas copias proceder a borrar la carpeta EFS original en el teléfono usando root explorer.
3- Reiniciar el celular, luego ir a la raiz del telefono nuevamente y veran que la carpeta EFS nuevamente se ha creado, no es que hayan cometido algun error, simplemente el Sistema Operativo Android la ha creado nuevamnete.
4- Con el Root Explorer borrar los archivos nv_data.bin y nv_data.bin.md5 que se encuentran adentro de la nueva carpeta EFS.
5- Ir a la copia de seguridad de la carpeta EFS que hicimos en la SD Card. Copiar la carpeta "IMEI" y pegarla en la carpeta "/EFS" Ir a la copia de seguridad de la carpeta EFS que hicimos en la SD Card nuevamente. Copiar " .nv_data " a la carpeta "/EFS" usando root explorer. Importante: "el punto" del archivo " .nv_data " no es un error, copiar el archivo " .nv_data "
6- Hacer otra copia del archivo ".nv_data" en la carpeta EFS del telefono, asi tendremos 2 copias del archivo ".nv_data" en la carpeta "/EFS"
7- Renombrar uno de los ".nv_data" a "nv_data.bin" y el otro a "nv_data.bin.bak"
8- En la PC abrir CMD en el directorio de trabajo de ADB (Hay que tener instalado Android-SDK), o ejecutar Android Terminal Emulator en el telefono e ingresar los siguientes comandos:
adb shell ( Usar este comando solo si usan ADB desde la PC, Si usan Terminal Emulator lo pueden saltear) su ( Para dar acceso Super User ) chown 1001:radio /efs/nv_data.bin
Tambien se puede hacer con Root Explorer: Con el Root Explorer cambiar el owner del archivo /efs/nv_data.bin para que sea 1001 - radio
9- Reiniciar el teléfono.
Si todo salió bien el IMEI debería haberse recuperado, pueden chequear si se recuperó ingresando *#06# en el Dial Pad del teléfono.
La copia de seguridad asi como la restauracion se puede hacer de 2 maneras, el metodo manual, y a travez de una aplicacion que lo realice en forma automatica. Ambos metodos son muy confiables.
IMPORTANTE:- Antes de flashear una ROM / Custom Rom por primera vez, debes hacer copia de la carpeta EFS
Nuestros terminales tienen un "partición" /efs donde se guardan los datos encriptados relativos al IMEI , así como la mac del WIFI y bluetooth, product code, etc.
El acceso a esa partición en un principio no está disponible fácilmente, pero dar por seguro que hay veces que se corrompe, ya sea al flashear sobretodo custom roms o manipular indebidamente ODIN. Incluso hay veces que ocurre de forma inexplicable, doy fe.
Una vez ocurre esto, se pierde el IMEI siendo imposible recuperarlo si no se cuenta con un backup.
* Metodo 1 : MANUAL
Para crear un Backup usaremos ROOTEXPLORER
* Comprimir carpeta en zip (recomendado)
- Manten pulsado encima de la carpeta /efs y le dan a "Zip this folder" - La copia estará en /sdcard/SpeedSoftware/Zip - Luego copienla a la PC
* Metodo 2 : Mediante una Aplicacion - Recomendado
IMPORTANTE: Manten la pantalla de tu móvil encendida durante el proceso; es posible que te pida permisos de superusuario durante la copia y/o restauración. Asegurate de que tu móvil está en modo MTP al conectarlo por USB al PC.
5. Marca "Save Backup To Device Storage (/sdcard)" y "Save Backup To PC Storage" (la guardará en el móvil y en el PC, en la carpeta donde estes ejecutando EFSPro.
6. Marca "Verify Partition Image MD5 Hash"
7. Click Backup EFS y espera a que diga "Operation Finished!". FIN.
Aqui les dejo un Video que encontre en en YouTube que les muestra todo lo anterior.
1. Descarga y descomprime la última versión de EFS Pro en una carpeta
2. Conecta el móvil al PC con el cable USB, recuerda tener Ajustes > Opciones de desarrollador > Depuración de USB activada.
3. Abre EFS Pro y espera a que cargue. Darle a Device Info para verificar la conexion
4. Restore Options > Backup Data to restore >> elegir la imagen (.img) a restaurar
5. Click Restore EFS y espera a que diga "Operation Finished!". FIN.
NOTA: El programa usara para la restauracion las imagenes (.img) almacenadas en la memoria interna del celular. Las mismas estan alojadas en la carpeta /EFSProBackup.
Otra OPCION puede ser:
GSII_Repair (de Helroz) : Disponible GRATIS en el Android Market
Esta simple, pero efectiva aplicacion permite hacer COPIA y RESTAURACION de la carpeta EFS
- Vamos a Save/ Restore y elegimos SAVE - Luiego vamos a Save/ Restore y elegimos Restore, si es que necesitamos restaurar la carpeta EFS.
I was having a problem both sending and receving MMS. After spending and hour and a half on the phone with Net10 tech support, and trying numerous settings changes, we finally got it working! I tried all of the other suggestions on THIS discussion page and NOTHING worked. Now my MMS is working
You MUST have the Network Setup app installed before you can manually put in the Internet APN Settings and the MMS APN settings. I have a Nokia Lumia 900, and had the same problem, couldn't find network setup in the nokia collection in my marketplace. Once you have it installed I will walk you through it step by step to manually input your settings.
Here's what you do:
1) go to marketplace, see the magnifying glass at the bottom center of screen (NOT the one on the lower right corner of your phone), press it.
2) type Nokia Network Setup and press ---> in lower right cornerof screen. this should take you right to the app installation screen.
3) Select install
After you installed the Network Setup go to your home screen. I will take you step by step.
Manually entering Internet APN settings & MMS APN settings for Nokia Lumia 900, if your provider is Net10. 1) At home screen, swipe left to go to your apps
2) Scroll down until you find the NETWORK SETUP app you just installed, and select.
3) It will probably say somewhere Multiple network operators were found. Don't press any of them.
4) Press + sign at the bottom of screen to add
5) Enter exactly in these fields
You have 3 circled options at very bottom of screen make sure you select save on the very left. Looks like a square or memory card. The middle is and X to cancel, and the trash can is to delete.
You should be all good to go. Hope this was helpful.
Download & run our SRS installer - Make sure you also install Samsung USB drivers in 4th step of installer.
If present uninstall 'Samsung PC studio software' or 'Samsung KIES software' from your computer
Turn on the phone with original simcard or without simcard
If present on your phone make sure Bluetooth is turned OFF and 'Auto Screen Time Out' is off Click to see image example
(Android phones only) Turn ON USB debugging on your phone.On the phone go to: "Menu - Settings-> Applications-> Development - USB debugging OR "Menu - Settings - Developer Options - USB debugging" (for newer Android versions) Click to see image example
Make sure your original Samsung USB cable is connected to your computer and your phone (turned on in correct mode)
Open 'Device Manager' on your computer: On XP go to: Start -> Settings -> Control Panel -> (Switch to Classic view ) -> System -> Hardware (tab) -> Device Manager. On Vista go to: Start -> Type in the following commando in the 'Search box': devmgmt.msc and hit enter. On Windows 7 Click the pearl button (start button) then in the search box type 'Device Manager', you will see 'Device Manager' in the search results. Click and it opens.
Now click the '+' at 'Ports (com & LPT)
Look for: 'diagnostic interface (com xx)'
Important note Some OMAP5 device create 2 diag Ports. Only one of them works for unlocking. When trying to unlock check your log (white log screen) you should see a line with 'Chipset: M9xxxx' (where xxxx are random other characters). If this line reads anything else then 'M9' you have the wrong Com port selected!.
You can directly see the Comport number between the brackets (ComX where 'X' is a number)
Select (or type) this number under 'Select Comport' in the SRS software
Press 'Read Unlock Codes' when available, if not click: 'Direct Unlock'
If *#7284# does not work on your phone you will either have to debrand your phone (by flashing a non branded firmware) or use UART USB cable. If *#9090# does not work on your phone just continue the manual ignoring this step in most cases unlocking will still work. If you get errors you either need to debrand your phone or use UART USB cable. In doubt - contact support
