Flash firmware on Samsung GT-i9023 Google Nexus S
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How to flash Samsung GT-i9023 Google Nexus S?
Why reinstall the firmware?
Errors in the operation of the Android OS begin to appear.
Some installed applications stop opening.
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 phone manufacturer's website.
On Internet resources where users post 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 phone. If the battery runs out during boot, the device will no longer turn on.
Download archive with Firmware.
Installing TWRP Recovery
Install the Official TWRP App via the Play Market. And run this application.
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.
Going to the next screen, select the item 'TWRP FLASH' and provide the application with root-rights.
On the main screen of the application, select 'Select Device', and find your phone model.
After selecting a device, the program redirects the user to a web page to download the corresponding image file of the modified recovery environment. Download the suggested *.img file.
After downloading the image file, return to the main screen of the Official TWRP App and press the 'Select a file to flash' button. Then we tell the program the path where the file loaded in the previous step is located.
Now 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..
Copy the necessary files to the SD memory card. Using a PC or laptop card reader.
Insert a memory card into the device.
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.
The file selection screen appears. At the very top there is a 'Storage' button for selecting an SD card.
Select the location where you copied the files.
Select the firmware file 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 damaged files during recording.
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: GSM frequencies: 850 900 1800 1900; Standard UMTS: 900 1700 2100; Standard LTE: no; Type: Touch; Dimensions (W x H x D): 123.90 x 63.00 x 10.88 mm; Weight: 129.00 g; Main display: Color / Super Clear LCD16M colors480 x 800 px (4.00") 233 ppi; Display protection: -; Talk time (max.): 2G: 840 min. (14.0 h)3G: 402 min. (6.7 h); Stand-by (max.): 2G: 712 h (29.7 days)3G: 427 h (17.8 days); Standard battery: Li-Ion 1500 mAh; Internal memory: 16 GB; Memory cards: no; Operating system: Android 2.3 Gingerbread; Processor: Cortex A8; Processor clock: 1.00 GHz; Touchscreen: yes; DualSIM: no; Announced: 2Q 2011; Camera location: Back; Photo matrix: 5 Mpx; Flash ...
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