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Flash firmware on Touchmate TM-MID750

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How to flash Touchmate TM-MID750?


Why reinstall the firmware?

Errors start to appear in the operating system.

Apps won't open.

Many programs from the Play Market do not work.

The phone shuts down and restarts for no apparent reason.

The phone slows down a lot during operation.

The OS does not match the system requirements of the smartphone.





Where can I find the firmware?

On the website of your phone manufacturer.

On sites where third-party developers post custom operating systems.


What should be done before installing the firmware?

Back up your contacts and user data and transfer it to another medium.

Insert your SD card into your phone. It must have enough memory to fit the firmware.

Find information about your smartphone model.

Fully charge your device. If the battery runs out during the firmware, the device will no longer turn on.

Download archive with Firmware. 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.

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.

On the next screen, you need to select the 'TWRP FLASH' item and give the application root-rights.

TWRP

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 download is finished, you need to return to the main screen of the Official TWRP App and click on the 'Select a file to flash' button. Select the file downloaded in the previous step.

After adding the image file to the program, click the 'FLASH TO RECOVERY' button and confirm your choice, click 'OK'.

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.

Transfer the necessary files to the SD memory card. Using a PC or laptop card reader, it will be much faster.

Insert a 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

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. Click the 'Install' button.


TWRP

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.



TWRP

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 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: Type: Mobile; Battery: Li-Po 3000 mAh; CPU: ARM Cortex A10, 1.2GHz; Smart Phone OS: Android 4.2.1; Formfactor: Tablet; Keyboard: Screen; Sidekeys: Volume, Power; Softkeys: 3; Color: Yes; Other: Capacitive Touchscreen, 5 Point Multitouch; Pixel aspect ratio: 1.0; Resolution: 480x800; Display PPI: 133; Screen Size: 7; Type: TFT LCD; Audio: MP3, WMA, WAV, APE, FLAC, AAC, OGG; Other: Video Recording; Videocapture: Yes; Videoplayback: AVI, WMV, MP4, MKV, RM, RMVB, FLV, MOV, 3GP; Connectors: 3.5mm Audio, MiniUSB 2.0; Network: WIFI, 802.11b, 802.11g; Features: Accelerometer, Compass, Built in Microphone, Built in Stereo Speaker; Memory Internal: 4GB ROM, 512MB RAM; Memory Slo ...

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