Lesson - 4 ( The Boot Key )

 Every CPU come with it's spacial download or flashing mode. 

1. Qualcomm mobiles has two pins on PCB that we call EDL Points.

EXAMPLE -

Redmi 7A 

We just short them with jumper wire or pin.

And keypad mobile who have Qualcomm CPU has a spacial button to switch in loader mode 

For example

Jio f220 - switch off the device.

And hold * key and plug the cable. 

You will se com port on device manager.

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2. MediaTek (MTK) Devices -

Switch off the mobile and hold volume up and down and plug the cable in device. You can see the MTK port in device manager.

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3. Spreadtrum Devices -

Same as MTK Devices

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4. Samsung- 

If device has a home key then-

Switch off your device and hold

Volume down + home button + PWR key

Device will start on download mode.

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If device has no home key then -

Switch off your device

Press volume down button and plug the USB Cable device will start in download mode.

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