Flash firmware on Samsung Jasper
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How to flash Samsung Jasper?
Why reinstall the firmware?
Errors in the operation of the Android OS begin to appear.
Some installed applications stop opening.
Many programs from the Play Market do not start.
The phone restarts or shuts down for no reason.
The phone slows down a lot during operation.
You want to update your firmware.
Where can I find the firmware?
On the phone manufacturer's website.
On specialized services where users post custom or official OS.
What should be done before installing the firmware?
Create a backup copy of user data and transfer it to another medium.
Insert an SD card into the gadget. It must have enough memory for the firmware.
Remember your smartphone model.
Fully charge your phone. If the battery runs out during boot, the device will no longer turn on.
Find and download the archive with Firmware.
Installing TWRP Recovery
Download the Official TWRP App from the Play Market. Download, install and launch the application..
At the first start, you need to give consent to future manipulations, as well as consent to granting the Superuser rights to the application. 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.
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 that you are ready to start the procedure - press 'OK' in the question window.
The recording process is very fast, and upon completion, the message 'Flash Completed Succsessfuly!' appears. Click 'OK'. The TWRP installation procedure can be considered complete.
Copy the required files to the 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, 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.
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 storage to which the files were copied.
Find the file we need 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 firmware installation procedure is indicated by the inscription 'Successful'.
Summary: GSM frequencies: no; Standard UMTS: no; Standard LTE: yes; Standard CDMA: 850 1900 2000 1xEV-DO; Type: Touch; Dimensions (W x H x D): 123.80 x 63.50 x 12.70 mm; Weight: 133.00 g; Main display: Color / TFT16M colors480 x 800 px (4.00") 233 ppi; Display protection: -; Talk time (max.): 3G: 1020 min. (17.0 h); Stand-by (max.): 3G: 216 h (9.0 days); Standard battery: Li-Ion; Internal memory: 4 GB; RAM memory: 768 MB; Memory cards: yes, microSD, microSDHC (up to 32 GB); Operating system: Android 4.0.4 Ice Cream Sandwich; Processor: Qualcomm MSM8960; Processor clock: 1.20 GHz; Number of cores: 2; GPU: Adreno 225; Touchscreen: yes; SAR (10g): 0,82 W/kg; Du ...
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