[MTCD  Android Head Units Q&A] roblis:
[YOUTUBE][/YOUTUBE]here the list of combination keys i tried to get into recovery but nothing works

1.

- Copy the“update.img” to an Empty TF card (Micro SD card)

- Insert the TF Card in the GPS Slot when the unit is off,then press and hold the Power Button and Start your car with your key.

- When the button lights is on,loose the power button,and you will see the screen as below. (Recovery mode)

- ....

2.

A document "update.img" a copy of this to the root directory of TF card.

In the machine shutdown state, the GPS upgrade card into the slot, press and hold down the power key, car keys marked with (ACC open), (be in the boot state, press the reset button). When the button light panel release the power button, after a few seconds the following figure (Recovery mode)

....

3. Try to turn key on, when you see lights light up hold button until they go off. Then press and hold again until you get into recovery.

4. Had to press and hold the upper button on the left and right until screen went off. After that it will start in recovery mode

5.

- Turn off the unit by holding 3-4 sec the power button.

- Hold the RESET button + POWER button for 5 sec

- Release the RESET button and keep pressing the POWER butoon for 2 sec

- Release the POWER button and wait. The Recovery menu appears.

- With the Volume knob you can move up/down and long press on Volume/Power button to select the option.

6.

- Frist please open the power，and the screen is coming，whether in which interface, please waiting 3 second then insert the SD card(Upgrade date card) to SD card slot.

- Use a finger press the left knob 3 second then loosen, the unit will auto turn off enter to a black interface.

- In the black interface, one finger hold on to press the “MENU” button , don’t loosen.

- At the same time use the another finger long press the left knob, waiting the unit open, when the screen appears code then loosen the finger.

The first methode above is from seller (navifly) (not working) and i dont understand the sentence "When the button lights is on", "When the button light panel", "when you see lights light up" --> I didnt see any "light" up in the unit

please enlighten me.

Please check if is there any other way i can try to get into recovery

Thank you

nb. I'll try these other methode when i get home

1.

•	Please long press the power button and press the reset hole at the same time. And loose the reset hole.

•	Then head unit will make beep-beep sound.

•	Then please loose the power button and press the power button one time.

•	It will show update and system recovery interface.

•	You can short press the power button to make the option. Please choose "recovery system from backup" And long press the power button to confirm it.

2.

•	Power the unit make sure you have the screen open.

•	Press the reset button to power down the system but leave the screen open.

•	Press and hold the reset button for about 3+ seconds, you should be able to see the screen go slightly darker.

•	As soon as you release the reset button, press the power button and hold it for 5 seconds. (One-thousand-and-one, one-thousand-and-two, etc).

•	Release the power button for 1 second then hold it in again for another 2 seconds.

•	Release the power button and wait for the screen to attempt to close, before it completely closes- hit the open button to get it to stay open.

•	You should see the system load into the recovery.

3.

Press the reset button.

Press both Power and Home button for about 15 seconds.

Release both and press Power again.

The unit will boot into recovery.

4. Power unit off. Power it on and the second you see the first boot screen push the reset button. Hold until you get into recovery.