Errors periodically appear in the Android operating system.
Some applications stop opening.
Some programs from the Play Market do not start.
The phone restarts or shuts down randomly.
The phone began to slow down a lot.
You have decided to try a different version of Android.
Where can I find the firmware?
On the official Internet resource of the phone manufacturer.
On specialized resources where users post custom or official OS.
What should be done before installing the firmware?
Create a backup copy of user data, contacts and photos and transfer it to your computer.
Insert an SD card into your phone to write the firmware to it.
Find out the exact model of your smartphone.
Charge your phone fully.
Find and download the archive with Firmware. Place it on the SD card.
Installing TWRP Recovery
Install the Official TWRP App from the Play Store on your phone.
When you start the application for the first time, you need to give consent to future manipulations, as well as to give consent to granting the application Superuser rights and click the 'OK' button.
After moving to the next screen, select the 'TWRP FLASH' item and provide the application with root rights.
On the main screen of the application, click on the 'Select Device' drop-down list, and select your phone model.
After selecting the phone, the application will redirect the user to a web page to download the modified recovery environment image file. Download the proposed *.img file.
After downloading the image file, go 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.
When the message 'Flash Completed Succsessfuly!' appears. Click 'OK'. The TWRP installation procedure can be considered complete.
Copy the required files to the SD card. Using a PC or laptop card reader, it will be much faster.
Insert a memory card into your 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. Open the menu and select the 'Reboot' item, and then click on the 'REBOOT RECOVERY' button.
Firmware via TWRP
Before flashing, you need to clear the 'Cache' and 'Data' sections, press 'WIPE' on the main screen. You will delete all user data from the phone, this will avoid software errors and other problems.
Press the 'Install' button to start the flashing.
The file selection screen appears. At the very top is the 'Storage' button, select the location where the firmware file is located.
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 corrupted files when writing to the phone's memory sections.
The procedure for writing files to the phone's memory will begin, this is accompanied by the appearance of inscriptions in the log field and the movement of the progress bar.
After completing the installation procedure, a 'Successful' message appears on the screen.
Summary: OS: Android 2.1 Eclair; CPU Speed: 1 GHz; Primary display: SUPER AMOLED 4" 800 x 480 pixels 16M colors WVGA, 233 ppi, Corning Gorilla Glass; Secondary display: No; RAM: 512 MB; Internal memory: 16 GB; Memory Card: MicroSD, Up to 32 GB; Primary camera: 5 MP 2592 x 1944 pixels; Video: 720p@30fps; Secondary camera: No; Headphone: Yes 3.5mm; WI-FI: Yes 802.11 b/g/n 0; NFC: No; GPS: Yes A-GPS; Bluetooth: No; HDMI: No; Hotknot: No; USB: No; Infrared: No; Capacity: 1500 mAh Li-Ion; Stand by: Up to 350 h; Talk time: Up to 5 h; Dimension: 122.9 x 60.2 x 9.9 mm; Weight: 125 g; SIM: Mini-SIM, Single-SIM; ...
Comments, questions and answers on the flash firmware Samsung Galaxy S CAPTIVATE