How to roll back to the old firmware. How to Restore Stock Firmware on Any Samsung Galaxy Device
Updates operating system this is always an expected event. Some phone owners find it difficult to wait for official patch releases from developers, so they choose more affordable option– installation of custom firmware, which is not always successful. There are also users who are frightened by innovations of this kind. This is understandable, because updates do not always help, they can even be worse than older versions. Sometimes fixes for certain programs load the system significantly, making the user experience more difficult, or are so useless that it becomes a little alarming. But the most disastrous result awaits users when the user interface changes irrevocably, naturally, not for the better.
Perhaps we should start with Nexus smartphones. Installation process new firmware simple as hell: save everything necessary information; On the Internet we find the required image of the version to which we want to update, and carry out the installation. It is necessary to take into account that if you do not open root rights, then it will be impossible to create a backup of the current version of the operating system, as well as extremely important system data. The market also provides the opportunity to download applications that can be used to save almost all information, but they require additional rights.
For Nexus smartphones it is much easier to return the old version of the application if you don’t like the new one. Just find an older version apk file, we completely remove the new application, and, using Explorer, install the old version. The main thing is not to forget to open access to install applications from other sources.
Regarding other devices (except Nexus), in particular, in matters of rolling back Android to previous versions firmware, the situation is somewhat different. Some, even most, devices running on the Android system are not designed to change the firmware manually. Factory settings limit the possibility of user intervention in system files smartphone. These restrictions also need to be lifted independently. For example, first you need to unlock the bootloader. The installation itself old version The firmware takes a little time, but preparation for the entire procedure may even require several hours.
Looking at all the nuances, the most reliable option for updating the system to a more recent build is to use custom firmware. We have already indicated this method a little higher in the context, but now we will try to substantiate the fact why this option is much better than rollbacks android systems to older versions. First of all, reliable assemblies are free of inaccuracies and errors, because huge teams of professionals work to create these updates. Secondly, you have the opportunity to choose the most suitable firmware. Thirdly, if you make every effort, you can always find an update with a better design.
"Rollback" to the old version of the update
To do this, you can reset all settings using a special code, which can only be obtained from official representatives of the manufacturer. Go to their website, find their contacts, get in touch. You dictate the IMEI of your phone to them, and in response you receive the necessary code. The details of the “rollback” will be explained to you.
You can synchronize with a computer via cable. But first install the drivers on your computer. They can be found either on the official website or on a special disk that came with your phone.
We return the original factory firmware
This option is suitable for those who are disappointed in any version of the update, realizing that it mobile device can function normally only on the factory firmware version.
The simplest and most effective way is “ hard reset settings", or Hard Reset. This will allow you to return the software that the manufacturers installed. There are two options for how to return the old update to Android: through the settings in the menu of the phone itself and using a “magic” key combination when the firmware “killed” the phone and it doesn’t even turn on.
1. Through settings. Go to them through the menu, select “About device”, and then “Reset settings”. Sometimes you may need to enter security codes, which should be given to you along with the phone (may be given in the instructions). However, remember that if the firmware changes, then the location and names of the sections also change. You will have to restore your data; including if you use this email client.
2. Each type of phone has its own combinations. Therefore, go to specialized forums or seek help in the section with technical information, which you can find on the official website of the manufacturer. Often this is a combination: power button (or unlock) + menu + volume down button (in some cases, volume up). Moreover, not just press, but hold. Do not forget that all information on the phone will be destroyed. All memory will be formatted.
Despite the fact that updating the firmware on a Lenovo smartphone to version 4.4 KitKat is a step forward in the development of devices, not everyone liked it and there are a number of dissatisfied users who would like to “roll back” to old firmware. In this article we will try to figure out how realistic it is to return everything to its original state and once again enjoy the high-quality performance of your phone.
Attention! This article is for informational purposes only and everything you do after reading it is at your own peril and risk.
During flashing, all information stored in internal memory phone will be lost: photos, videos, contacts, etc.
One of the most popular and affordable smartphones on this moment still remains, using his example we will try to figure out how to return the old Android firmware.
1. Installing drivers for PC
The first thing you need to do is install the firmware drivers on your PC. To do this, connect the phone via a microUSB cable to the computer and install the drivers. After installing the drivers, the phone must be disconnected from the computer.
You can download the driver for Lenovo P780
2. Search required firmware for phone
Depending on your phone model, you need to find an archive with the firmware of interest, download it to your PC and unpack it.
Official Lenovo firmware P780_ROW_S124_140403 (smartphone with 4GB built-in memory) Android versions 4.2.1 can be downloaded . This firmware was the last one after updating to version 4.4 KitKat.
3. Install the SP program Flash Tool
SP Flash Tool allows you to download firmware to your phone (Please note that each smartphone requires its own firmware). Usually this program located in the archive with the downloaded firmware.
4. Phone firmware from computer
- Turn off the phone
- Launch the SP Flash Tool program
- Fill in the Download Agent and Scatter-loading File fields
- NECESSARILY check the box next to DA DL All With Check Sum
- After all the settings are installed, you can click Fimware -> Upgrade
- We connect the switched off phone to the computer using a microUSB cable.
- With the right pre-setting, after connecting the smartphone to the PC, different colored bars should begin to appear alternately at the bottom of the SP FlashTool, signaling that the firmware is being uploaded to your phone, and eventually a window with a light green circle will appear, indicating the end of the work.
After that, disconnect the phone from the cable and turn it on. Due to the upload of new firmware, the first download will take much longer than usual, since new parameters are applied and initial setup devices.