Flash firmware on Pantech IM-A690L
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How to flash Pantech IM-A690L?
Why reinstall the firmware?
Errors begin to appear in the Android OS.
Some applications stop opening.
Many programs from the Play Market do not start.
The phone restarts for no reason.
The phone began to work slowly.
You are not satisfied with the functionality of the stock firmware.
Where can I find the firmware?
On the official website of the manufacturer.
On specialized services where users post custom or official OS.
What should be done before installing the firmware?
Back up your phone's user data.
Insert your SD card into your phone. It must have enough memory to fit the firmware.
Remember your smartphone model.
Fully charge your device's battery.
Find and download the archive with Firmware.
Installing TWRP Recovery
Download the Official TWRP App from the Play Market. And install it.
When you start the application for the first time, you must agree to install a new firmware and all the risks associated with this, as well as agree to grant the application Superuser rights and click the 'OK' button.
In the next screen, select the item 'TWRP FLASH' and provide the application with root-rights.
On the main screen of the application, the 'Select Device' drop-down list is available, in which you need to find and select the device model for installing the recovery.
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.
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.
Click the 'FLASH TO RECOVERY' button and confirm your choice, click 'OK' in the question window.
When the message 'Flash Completed Succsessfuly!' appears on the screen. Click the 'OK' button. The TWRP installation procedure is now complete.
Copy the required files to the memory card. Using a PC or laptop card reader.
Insert a memory card into the phone.
To reboot in recovery, it is convenient 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 tap on the 'REBOOT RECOVERY' button. The phone will reboot into the recovery environment automatically.
Firmware via TWRP
Before flashing, it is recommended to clear the 'Cache' and 'Data' sections. This will delete all user data from the device, but avoid a wide range of software errors and other problems. You must press 'WIPE' on the main screen.
Everything is ready to start flashing. Press the 'Install' button.
The file selection screen is displayed. At the very top is the 'Storage' button, select the location where the firmware file is located.
Select the storage to which the files were copied.
Select the firmware file and click on it. A screen opens with a warning about possible negative consequences, as well as the item 'Zip signature verification'. This item should be checked by placing a cross in the check-box, which will avoid using damaged files when writing to the phone's memory sections.
The procedure for writing files to the phone's memory will begin, accompanied by logging and filling in the progress bar.
The completion of the installation procedure is indicated by the inscription 'Successful'.
Summary: Aliases: Pantech Mirach, Pantech IS11PT; Type: Mobile; Battery: Li-Ion 1350 mAh; Smart Phone OS: Android 2.3; Dimensions: 117 x 57.7 x 11.7 mm; Formfactor: Bar; Keyboard: Screen; Weight: 116 g; Color: Yes; Colors: 16M; Other: Capacitive, Touch, Multitouch; Pixel aspect ratio: 1.50; Resolution: 480x800; Display PPI: 267; Screen Size: 3.5; Type: TFT; Audio: MP3; Camera: 5MP; Other: Digital zoom, Auto focus, LED Flash; Videocapture: Yes; Videoplayback: MPEG4, 3GP; Connectors: USB 2.0, MicroUSB, 3.5mm Audio; Network: GSM900, GSM1800, GSM1900, 802.11b, 802.11g, 802.11n, Bluetooth 2.1, GPRS, EDGE; Features: Alarm, Calendar, Calculator, Organizer, Speakerphone, Vibration, Voi ...
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