Flash firmware on Samsung Galaxy Metrix 4G SCH-I405U
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How to flash Samsung Galaxy Metrix 4G SCH-I405U?
Why reinstall the firmware?
Errors in the operation of the Android OS begin to appear.
Apps won't open.
Many applications from the Play Market do not start.
The phone turns off for no apparent reason.
The phone is slow.
You want to update your firmware.
Where can I find the firmware?
On the website of your phone manufacturer.
On specialized services on which various developers lay out custom or official OS.
What should be done before installing the firmware?
Back up your contacts and user data and transfer it to your computer.
Insert your SD card into your phone. It must have enough memory to fit the firmware.
Remember your smartphone model.
Fully charge your device. If the battery runs out during the firmware, the device will no longer turn on.
Download Firmware and Place it on the SD card.
Installing TWRP Recovery
Download the Official TWRP App to your phone from the Play Market. And install this app.
When you start the application for the first time, you must consent to future manipulations, as well as consent to granting the application Superuser rights. Check the checkboxes and press the 'OK' button.
On the next screen, you need to select the 'TWRP FLASH' item and give the application root-rights.
On the main screen of the application, select 'Select Device', and find your phone model.
After selecting the phone, the program will redirect the user to a web page to download the corresponding image file of the modified recovery environment. Download the proposed *.img file.
When the file is loaded, you need to return to the main screen of the Official TWRP App and press the 'Select a file to flash' button. Select the file downloaded in the previous step.
Press the 'FLASH TO RECOVERY' button and confirm your choice, press 'OK'.
After the burn process is complete, the message 'Flash Completed Succsessfuly!' appears. Click 'OK'. The TWRP installation procedure can be considered complete..
Transfer the firmware and other necessary files to the SD card.
Insert a SD memory card into the phone.
To reboot into recovery, you need to use a special item in the Official TWRP App menu, accessible by pressing the button with three stripes in the upper left corner of the main screen of the application. We open the menu, select the 'Reboot' item, and then click on the 'REBOOT RECOVERY' button. The phone will reboot into the recovery environment automatically.
Firmware via TWRP
Before flashing, you need to clear the 'Cache' and 'Data' sections, press 'WIPE' on the main screen. This will delete all user data from the device, but avoid a wide range of software errors and other problems.
Now you can start flashing. Press the 'Install' button.
On the file selection screen, at the very top there is a 'Storage' button for selecting an SD card.
Select the storage to which the files were copied. Press the OK button.
Find the file we need and click on it. A screen opens with a warning about possible negative consequences, you need to check the item 'Zip signature verification', which will avoid using corrupted files when writing to the phone's memory sections.
The procedure for writing files to the device's memory will begin, accompanied by the appearance of inscriptions in the log field and the completion of the progress bar.
The completion of the firmware installation procedure is indicated by the inscription 'Successful'.
Summary: Band: CDMA 800 and CDMA 1900, LTE, EV-DO Rev. A; Support ranges LTE: Band 2/4/5/12; Type: smartphone; Operating system: Android 2.3; Enclosure type: horizontal slider; Housing material: plastic; QWERTY keyboard: yes; Type of SIM card: plain; The number of SIM-cards: 1; Weight: 160 g; Dimensions (WxHxT): 64x124x14 mm; Screen type: color Super AMOLED touch; Diagonal: 4 inch.; Image size: 480x800; The number of pixels per inch (PPI): 233; Automatic screen rotation: yes; Ringtones type: polyphonic, MP3 ringtones; Vibrating alert: yes; Camera: 5 million pixels., led flash; Camera options: autofocus; Recording movies: yes; Geo Tagging: yes; Front camera: ...
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