LG L7 II Dual is a budget smartphone for the demanding user. The device is quite fast, looks stylish, like other products from the Korean manufacturer, and the quality of parts and assembly indicates the possibility of using the device for many years. In order to keep up in the race for new mobile software, without changing your usual LG P715 device for a new smartphone model, it is enough to find up to half an hour of free time and replace the outdated firmware with a newer one.

How to flash LG L7 II DUAL P715?

• Download firmware for LG P715 and KDZ_FW_UPD program for OS Windows.
• Run the KDZ_FW_UPD program (you may need to install msxml.msi).
• In the Type item (top left) in the drop-down list, select the value 3GQCT.
• In PhoneMode (top right) – select EMERGENCY.
• In the KDZ file item on the right there is an open folder icon, click on it, in the window that opens go to the folder where you have the downloaded firmware. Select the previously downloaded firmware file, then click the “Select” button.
• Turn off the phone and, while pressing the volume down button (hardware button on the left side of the device), connect it to the computer. The phone will go into Emergency mode.
• Click the “Launch software update” button and wait for the device flashing process to complete. Firmware for LG Optimus L7 IIDUAL P715 usually takes up to half an hour, during the process the phone can be rebooted automatically.

Reflashing is always a risk. But it can be minimized if you consider the following points:

• flash the phone on a laptop, which protects against interruption of the process during a power outage;
• During the firmware installation, do not occupy the laptop with third-party applications; you can be patient for half an hour;
• Do not experiment with firmware, choose only those posted on resources with a good reputation.

If your smartphone does not want to boot normally, works poorly or does not work at all, you should try flashing it. Fortunately, almost all LG Android devices are flashed the same way. You can do this either using the KDZ utility or through the official LG Mobile Support Tool. We will now describe the sequence of actions.

This instruction applies only to GSM devices. The CDMA firmware has not been tested against it. The method has some dangers. If a failure occurs during KDZ operation at the time of bootloader recording, only a service center can restore the device. We recommend choosing a good cable in advance, charging the battery in the laptop, disabling antiviruses and turning off other programs. It is better to use the cable that came with the device and place it in the rear socket of the computer. There may be a lack of power through the hub.

Warning

The administration is not responsible for the actions you perform with the device. This material is provided for recommendation purposes and not as a guide to action.

Preparation

To get ready for work, you need to download several files

The official firmware itself in .KDZ format

Install all the drivers one by one and just in case, LG Mobile Support Tool. You will need it if the drivers are not installed (read in the last part of the article), for the usual update of the official firmware and restoration of the brick. Unzip the KDZ folder to the root of the system disk. Place the firmware next to it.

In KDZ you need to find and install the msxml.msi package using the standard method.

Now we put the phone into firmware mode. To do this, completely turn off the device or disconnect the battery. If it is not removable, press and hold the power button until the screen goes dark and the device vibrates twice.

Hold down BOTH volume buttons and power button. After a few seconds, a yellow image with a caption will appear. Emergency Mode.

Now we connect the device to the PC and check if the drivers are installed.

If everything is fine, let's move on to the firmware. No - we restart the computer, try another port, cable. Without drivers, the firmware will not start! You can also try downloading them using the LG Mobile Support Tool. Read about it below.

Firmware

The drivers are installed. The phone is visible. It's time to launch KDZ. Go to the folder with the installed flasher and open KDZ_FW_UPD.exe as an administrator. If it doesn't work, right-click on the file and set it to compatibility with Windows XP SP3. Flashing on Windows 8, 10 is not recommended. For your own safety, find a computer with Windows 7.

The KDZ start screen looks like this. Set the values ​​circled correctly.

Now you need to select the firmware itself using this button.

Click Launch Software Update and wait. The utility may hang; the process sometimes lasts more than half an hour. It's better not to touch anything. Then progress bars will run across the screen, and you will see the treasured message about the end of the firmware FINISHED. KDZ sometimes behaves erratically. In our case, she flew out immediately after the procedure was completed. Because of this, the image is different.

The phone will reboot itself and begin charging. Disconnect it from the cable, disconnect the battery and turn it on by holding the “power” button. If the device does not work, try entering Emergency Mode again and flashing it 2-3 more times. Sometimes the LG Mobile Support Tool utility also helps restore operation.

Updating the official software and restoring the “brick”

Nobody forbids you to try the official software update utility. It happens that it helps to cope with particularly obstinate devices. Open LG Mobile Support Tool

Click “install USB driver”, mark your model and wait until everything is downloaded and installed.

Connect the device. If it is in working order, but there are no official firmware updates, the program will write about it.

When the “start updating” column is active, try selecting it and following the program instructions. Everything is simple and clear there. There is only one drawback - the LG Mobile Support Tool takes a very long time to download the firmware. Don't expect a quick solution to the problem.

We hope everything worked out for you. Good luck with the firmware!

Smartphone LG Optimus L7 II Dual P715 from the South Korean brand runs Android 4.1. Here you can get root rights, download official firmware and custom, as well as instructions. In addition, there is information on how to reset settings (hard reset) or a pattern lock. This smartphone is high-performance.

Root LG Optimus L7 II Dual P715

How to get root for LG Optimus L7 II Dual P715 see instructions below.

Below are universal programs for obtaining root rights for devices on Qualcomm Snapdragon

• (need PC)
• (Root using PC)
• (popular)
• (root in one click)

If you could not obtain superuser (root) rights or the program did not appear (you can install it yourself) - ask a question in the topic. You may need to flash a custom kernel.

Characteristics

1. Standard: GSM 900/1800/1900, 3G
2. Type: smartphone
3. Operating system: Android 4.1
4. Case type: classic
5. Number of SIM cards: 2
6. Weight: 115 g
7. Dimensions (WxHxD): 66.6x122.2x9.7 mm
8. Screen type: color IPS, touch
9. Touch screen type: multi-touch, capacitive
10. Diagonal: 4.3 inches.
11. Image size: 480x800
12. Pixels per inch (PPI): 217
13. Automatic screen rotation: yes
14. Type of ringtones: polyphonic, MP3 ringtones
15. Vibration alert: yes
16. Camera: 8 million pixels.
17. Camera functions: autofocus
18. Video recording: yes
19. Max. Video frame rate: 30fps
20. Front camera: yes, 0.3 million pixels.
21. Video playback: MP4, DivX
22. Audio: MP3, AAC, WAV, WMA, FM radio
23. Headphone Jack: 3.5mm
24. Interfaces: USB, Wi-Fi, Wi-Fi Direct, Bluetooth 3.0
25. Satellite navigation: GPS
26. A-GPS system: yes
27. Internet access: WAP, GPRS, EDGE, HSDPA, HSUPA, email POP/SMTP, email IMAP4, HTML
28. DLNA support: yes
29. Processor: Qualcomm MSM8225, 1000 MHz
30. Number of processor cores: 2
31. Video processor: Adreno 203
32. Built-in memory: 4 GB
33. RAM capacity: 768 MB
34. Memory card support: microSD (TransFlash), up to 32 GB
35. MMS: yes
36. Battery capacity: 2460 mAh
37. Talk time: 12:00 h:min
38. Standby time: 800 h
39. Sensors: proximity, compass
40. Search by book: yes
41. Organizer: alarm clock, calculator, task planner
42. Contents: phone, PC connection cable, charger, manual
43. Features: Backlit Camera Sensor

»

Firmware for LG Optimus L7 II Dual P715

Official Android 4.1 firmware [stock ROM file] -
Custom firmware LG -

Firmware for LG Optimus L7 II Dual P715 can be done in several ways. If the firmware file has not yet been uploaded here, then create a topic on the forum, in the section, specialists will help you and add the firmware. Don’t forget to write a 4-10 line review about your smartphone in the subject line, this is important. The official LG website, unfortunately, will not help solve this problem, but we will solve it for free. This LG model has a Qualcomm MSM8225, 1000 MHz on board, so there are the following flashing methods:

1. Recovery - flashing directly on the device
2. A special utility from the manufacturer, or

What custom firmware are there?

1. CM - CyanogenMod
2. LineageOS
3. Paranoid Android
4. OmniROM
5. Temasek's

Problems and shortcomings of an LG smartphone and how to fix them?

• If the Optimus L7 II Dual P715 does not turn on, for example, you see a white screen, hangs on the splash screen, or the notification indicator only blinks (possibly after charging).
• If stuck during update / stuck when turned on (needs flashing, 100%)
• Doesn't charge (usually hardware problems)
• Does not see the SIM card (SIM card)
• The camera does not work (mostly hardware problems)
• The sensor does not work (depends on the situation)

Hard Reset for LG Optimus L7 II Dual P715

Instructions on how to do a Hard Reset on LG Optimus L7 II Dual P715 (factory reset). We recommend that you familiarize yourself with the visual guide called on Android. .

Reset codes (open the dialer and enter them).

1. *2767*3855#
2. *#*#7780#*#*
3. *#*#7378423#*#*

Hard Reset via Recovery

1. Turn off your device -> go to Recovery
2. "wipe data/factory reset"
3. “yes - delete all user data” -> “Reboot System”

How to log into Recovery?

1. hold down Vol(-) [volume down], or Vol(+) [volume up] and the Power button
2. A menu with the Android logo will appear. That's it, you are in Recovery!

Reset settings on LG Optimus L7 II Dual P715 You can do it in a very simple way:

1. Settings->Backup and reset
2. Reset settings (at the very bottom)

How to reset a pattern key

How to reset the pattern key if you forgot it and now you can’t unlock your LG smartphone. On the Optimus L7 II Dual P715 model, the key or PIN code can be removed in several ways. You can also remove the lock by resetting the settings; the lock code will be deleted and disabled.

1. Reset graph. blocking -
2. Password reset -

For this smartphone, there are two working ways to obtain root rights without necessarily flashing it. These methods are implemented using different programs and are suitable for different versions; choose the one that is suitable for your device.

WE GET ROOT RIGHTS USING THE FRAMAROOT PROGRAM

This method has been tested and works 100% on version P715. If you have a P710 or P713 with firmware 10E or later, this method will most likely not work. On P710 and P713 with firmware 10D everything will work out.

STEP 1. Download the Framaroot program and install it on your phone. (Unfortunately, all the files we found on the Internet are infected with various viruses, so we do not provide download links)

STEP 2. Launch Framaroot on your smartphone, select SuperSU, click Gimli, Sam, Frodo, Legolas, Aragorn, Gandalf, Boromir - in general, any character you like, if available. In my case, choosing SuperSU + Gandalf worked. After the message that superuser rights have been successfully obtained, reboot the smartphone.

P.S. After obtaining root rights using this method, it remains possible to update the LG Optimus L7 II via Wi-Fi. At least the P715 with firmware 10c was updated to firmware 10d without any problems. If you still have problems with updates and the phone, when you try to update, displays a message stating that it cannot do this due to superuser rights, delete the rct and rct.cfg files, which are located in /persist.

WE GET ROOT RIGHTS USING THE CHINESE Vroot PROGRAM

If you have a single-SIM version of LG Optimus L7 II, then the above method may not work. Then use this method, which was tested on the P713 model with firmware 10E.

STEP 1. Enable USB debugging. To do this, go to “Settings” -> “Developer Menu” and check the appropriate box. If the “Developer Menu” is not displayed in the “Settings” item, then you need to activate it. To do this, go to the “About device” item and tap on the “Build number” item until (about 10 times) the “Developer Menu” turns on.

STEP 2. On your PC, download and install the Vroot program, having first disabled the antivirus on your computer. The installation interface may be displayed with crappy characters instead of normal letters, but there is nothing to worry about.

STEP 3. Launch the Vroot program on the PC, connect the smartphone via a cable to the PC (drivers must be installed on the PC). In this case, “USB Debugging” and “Installation from Unknown Sources” should be active on the smartphone, and the MTP and Camera (RTR) checkboxes should not be checked for the USB connection. The Vroot program should detect the connected smartphone.

STEP 4. Click the green “ROOT” button (bottom right) in the Vroot program and wait. After the smartphone reboots on its own, you can disconnect it from the PC - superuser rights are already present on it.

STEP 5. Since the program is Chinese, SuperSu is Chinese. Let's replace it with Russian. Download the SuperSu file, throw it on your smartphone and install it. Next, go to “Settings”, activate the checkboxes opposite “Allow Superuser”, “Survival Mode”, “Re-register applications”, “Trust system user”, then go to the “System” subcategory and tap on “Installation into the system” -> “ Continue". After the reboot, remove the “Chinese” and reboot again.

P.S. You can also UnRoot, that is, remove root rights from the LG Otimus L7 II smartphone using the Vroot program. To do this, you need to launch Vroot on your PC, connect your smartphone to the computer and after the program detects the device, click on the gray button (bottom left).

Software update options

This function allows you to conveniently update your smartphone software to a new version “over the air” using Firmware Over-the-Air (FOTA) technology without connecting via a USB cable.

• 1 Install USB DRIVER
• 2 Download and install LG MOBILE SUPPORT TOOL
• 3 Connect your phone to PC using a USB cable
• 4 Click "Start Update" in LG Mobile Support Tool

The smartphone software update stopped before it was fully installed?

1. The smartphone software update stopped before it was fully installed?
   Do not close the software update window, disconnect the cable and connect it again. And check if the USB driver is working on your PC. After this, resume the software update.
2. Otherwise, please select "Tools" - "Phone Recovery" in LG Mobile Support Tool. Then you can start restoring your phone.