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Hard Reset Process for Navivox 7 Android 7.1.1 Radio from China: Seeking Guidance

majkii2 271173 68
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How can I hard reset a Navivox 7 Android 7.1.1 car radio after changing the screen resolution and losing the display?

Use a USB keyboard to try recovery mode: on some Chinese head units, hold Alt + Print Screen and press the i key repeatedly until the recovery menu appears, then use the arrow keys to select Clear data / Restore factory settings and confirm with Enter [#17601157] If that exact combination does not work, users reported that the shortcut varies between otherwise identical radios, so you may need to try keyboard combinations blindly until the reset menu appears [#18282110] For resolution-only damage, another working fix is to connect a USB mouse or an external monitor, regain access to Settings, and restore the previous/default resolution or disable the secondary-resolution simulation option [#19583880][#19859355] A 5-finger tap on the screen during boot has also triggered calibration or factory reset on some units, but it is not universal [#20752887][#21120109]
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  • #1 17195606
    majkii2
    Level 2  
    Posts: 2
    Rate: 35
    Hello, I have a radio from china on the ondroid 7.1.1 navivox 7 I found something in the settings and changed my resolution and do not do anything on the display I wanted to make a hard reset but can not find a description anywhere for this model sea would help me?
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  • #2 17195812
    bubu1769
    Level 43  
    Posts: 8043
    Help: 1173
    Rate: 2347
    You tried to turn off the radio, turn the ignition off, press and hold the reset, turn on the ignition without releasing the reset, wait 10 seconds and just fight the radio with the button?
  • #3 17195854
    majkii2
    Level 2  
    Posts: 2
    Rate: 35
    I tried to make probably a million combinations of this model I did not find on youtube so I ran out of ideas
  • #4 17344290
    staszek-h
    Level 10  
    Posts: 14
    Rate: 44
    Buddy, have you found any solution for your radio yet? Because I also confused something with resolution and I have the same as you.
  • #5 17346233
    staszek-h
    Level 10  
    Posts: 14
    Rate: 44
    I found a way somewhere in the English forum after translating the really blinding thing.

    Quote:
    Hello all,

    I just had three same screen resolution problem to be 7 "eincar head unit running Android 6.0.1. I was able to plug in a computer monitor (that had an RCA video input) I was able to navigate with my mouse on the other side of the computer. screen and revert the view of the screen. I have been waiting for the future. booted normally when I gave it power again.

    I hope this can help someone out there. Good luck!


    And here you have a translation using Uncle Google:
    Hello all,

    I just had three problems with the same screen resolution as my eincar 7 inch main unit running Android 6.0.1 I thought it was done until this simple solution came up. video input) to the video output from the main unit and navigation using the USB mouse Fortunately, the added screen was able to work normally with the resolution setting that the main unit could not. I was able to move the mouse on the outside. Then I came back to the screen and went back to correct setting, then hung up and disconnected the car, then waited a few minutes, unplugged the external monitor and to my surprise, the main unit came back to life and started normally when I gave it power again.

    I hope it can help someone there. Good luck! :D

    Tomorrow I will try and let me know.
  • #6 17348035
    staszek-h
    Level 10  
    Posts: 14
    Rate: 44
    Some lipna?nie moved, and maybe something wrong I do?

    Added after 20 [minutes]:

    Maybe someone has already worked out such a case.
    Attachments:
    • 20180724_205653.mp4 (16.9 MB) You must be logged in to download this attachment.
  • #7 17456873
    limzej
    Level 2  
    Posts: 3
    Rate: 29
    Hi, I have the same problem, did you manage to somehow reset the system ?? Hard Reset Process for Navivox 7 Android 7.1.1 Radio from China: Seeking Guidance [Img-0]
  • #8 17483259
    staszek-h
    Level 10  
    Posts: 14
    Rate: 44
    Unfortunately, my friend did not manage to do anything about it. The radio is useless in the cabinet.
    I've already written on various forums, but no response.
  • #9 17483304
    limzej
    Level 2  
    Posts: 3
    Rate: 29
    Welcome.
    I gave the radio to a specialist service but they can not think of anything ...
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  • #10 17504563
    staszek-h
    Level 10  
    Posts: 14
    Rate: 44
    So just as it says in basketball "throw in the basket for 3 points" and you have to buy new ones.
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  • #11 17601157
    monterek2
    Level 11  
    Posts: 6
    Rate: 22
    Hello. I have been doing radio with a week. I have a Chinese 2-din radio dedicated to vw. Today I got a hard-rest description for Radio QuadCore-R16 Astar_d7, my radio has a Quad-Core A7 processor. I tried according to the description and went into emergency mode at the first attempt.

    Android 6 to enter emergency mode (stuck in the boot animation) by connecting the USB keyboard and pressing the "i" key several times while holding down Alt + Print Screen.
    After several presses of the "i" button, the device started in the restore mode. Use the arrow keys to go to Clear data / Restore factory settings and Enter to select. I think it will help with many devices with a USB port.
  • #12 18282000
    tomsku1
    Level 1  
    Posts: 1
    Rate: 9
    Unfortunately, the key combination "alt + print screen + and" gives only a dead overturned android :-(
    Maybe another combination ??
    Anyone know something ??
    Please help !!!
  • #13 18282110
    limzej
    Level 2  
    Posts: 3
    Rate: 29
    My colleagues finally managed to reset my radio. A simple usb keyboard and quite a lot of time were enough :) you have to combine it yourself with keyboard shortcuts. I currently have two such radios (I bought the second one to transfer the whole system) look identical but each one has a different key combination so I pressed the keys blindly until I hit. I was able to enter the settings and select the reset options
  • #14 18356960
    josephx
    Level 10  
    Posts: 5
    Rate: 22
    Hello. I also have an android touch radio And by stupidity I won a carnel which was a bad decision. Now I have only the logo after the start. My question is whether the keyboard goes back to its previous state ?
  • #15 18434918
    marcel_76
    Level 13  
    Posts: 141
    Help: 1
    Rate: 123
    This problem also caught me up.
    I installed the radio and started playing with the settings
    And zonk
    What s probably changed to the touch because when I touch in the right corner it is marked in the middle. Touch works all over the world.
    I am unable to enter any options. It stays hard reset but I can't do it.
    To the radio go two power cables permanently connected + one more plus to ACC after the ignition.
    How to trigger a hard reset ???
    Attachments:
    • VID_20200128_223730.mp4 (39.4 MB) You must be logged in to download this attachment.
    • Hard Reset Process for Navivox 7 Android 7.1.1 Radio from China: Seeking Guidance Screenshot_2020-01-29-12-48-03-770_com.miui.videoplayer.jpg (822.81 KB) You must be logged in to download this attachment.
  • #16 18434932
    marcel_76
    Level 13  
    Posts: 141
    Help: 1
    Rate: 123
    limzej wrote:
    My colleagues finally managed to reset my radio. A simple usb keyboard and quite a lot of time were enough :) you have to combine it yourself with keyboard shortcuts. I currently have two such radios (I bought the second one to transfer the whole system) look identical but each one has a different key combination so I pressed the keys blindly until I hit. I was able to enter the settings and select the reset options


    But you connect the keyboard to USB and try alt + print screen + another button
    And finally the hard reset menu pops up?
  • #17 18435568
    josephx
    Level 10  
    Posts: 5
    Rate: 22
    marcel_76 wrote:
    This problem also caught me up.
    I installed the radio and started playing with the settings
    And zonk
    What s probably changed to the touch because when I touch in the right corner it is marked in the middle. Touch works all over the world.
    I am unable to enter any options. It stays hard reset but I can't do it.
    To the radio go two power cables permanently connected + one more plus to ACC after the ignition.
    How to trigger a hard reset ???

    Go into settings and there you have Key learning and teach android + screen calibration.
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  • #18 18435943
    marcel_76
    Level 13  
    Posts: 141
    Help: 1
    Rate: 123
    I succeeded (With the help of a computer mouse and Son ;)
    Set the touch and it's almost perfect.
    Almost because navigation (touch) keys do not work, i.e. power, home, back, vol +, vol-
    Thanks to the floating point they have been replaced but I still have to figure out how to run them.
    There is a menu where you can check the exact position on the x and y axes of these keys but I don't see the menu where you can turn them on or off.
    Now when you touch them, nothing happens as if they were off screen.
    Someone something?
    Attachments:
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  • #19 18447363
    marcel_76
    Level 13  
    Posts: 141
    Help: 1
    Rate: 123
    josephx wrote:

    Go into settings and there you have Key learning and teach android + screen calibration.


    No such Key learning function
  • #20 18466762
    josephx
    Level 10  
    Posts: 5
    Rate: 22
    Hard Reset Process for Navivox 7 Android 7.1.1 Radio from China: Seeking Guidance Hard Reset Process for Navivox 7 Android 7.1.1 Radio from China: Seeking Guidance Go into settings and click alternately, karnel version and os version until Factory Settings pops up and there you have Other, go there, scroll down, and you'll have. Panel learning and Touch learning. Assign side buttons and confirm. Hard Reset Process for Navivox 7 Android 7.1.1 Radio from China: Seeking Guidance
  • #21 18467613
    marcel_76
    Level 13  
    Posts: 141
    Help: 1
    Rate: 123
    I have another radio
    And I don't have the options you show
  • #22 18493612
    ziolo2008
    Level 6  
    Posts: 14
    Rate: 11
    Welcome gentlemen
    I have a similar problem to yours, radio on Android with Allegro probably also made in china I do not know the model or name of the paper somewhere in the fall. The radio worked and suddenly only shows the Volkswagen logo and that was all I tried to reset push hold in different ways and does not enter the factory reset
    Below the link to the radio photo maybe one of you had such a problem and knows how to solve it thank you in advance
    I will add that when it gives a reverse gear it turns on the reversing camera and shows the image
    Regards
    Hard Reset Process for Navivox 7 Android 7.1.1 Radio from China: Seeking Guidance
  • #23 18495458
    marcel_76
    Level 13  
    Posts: 141
    Help: 1
    Rate: 123
    And after disconnecting the power does not start android again?
  • #24 18495484
    ziolo2008
    Level 6  
    Posts: 14
    Rate: 11
    Do you mean unplugging the plug from the back of the radio? if I haven't done so, I will do it on Saturday and gather information
  • #25 18500084
    czarny_alibaba
    Level 17  
    Posts: 863
    Help: 5
    Rate: 150
    ziolo2008 wrote:
    Welcome gentlemen
    I have a similar problem to yours, the radio on Android with Allegro probably also made in china I do not know the model or name of the paper somewhere in the fall. The radio worked and suddenly only shows the Volkswagen logo and so much I tried to reset push hold in different ways and does not enter the factory reset
    Below the link to the radio photo maybe one of you had such a problem and knows how to solve it thanks in advance thank you
    I will add that when it gives a reverse gear it turns on the reversing camera and shows the image
    Regards
    Hard Reset Process for Navivox 7 Android 7.1.1 Radio from China: Seeking Guidance


    It's probably Radio Bosion or some clone - but I'm not sure?
    https://www.youtube.com/watch?v=eZmsRGYkr-8
  • #26 18517394
    romec
    Level 11  
    Posts: 9
    Rate: 2
    Hello. I want to ask, does the keyboard we use matter matter? I tried the alt + prtsc key combination on two keyboards. In the second case, the prtsc key had an additional description of req - this keyboard did not react even once. Why?
  • #27 18519571
    KwiatekV9.
    Level 1  
    Posts: 1
    Rate: 10
    Hi. I also played with resolution and overdid it. I couldn't do anything, the screen didn't respond to touch. I tried by uploading a new software, but there was an error in the 2nd picture. Evidently a bad file on a pendrive. Finally, I connected the keyboard and only because something could barely be seen changed to the previous resolution. Half a day of fight but successful. Best regards and good luck.

    Hard Reset Process for Navivox 7 Android 7.1.1 Radio from China: Seeking Guidance Hard Reset Process for Navivox 7 Android 7.1.1 Radio from China: Seeking Guidance Hard Reset Process for Navivox 7 Android 7.1.1 Radio from China: Seeking Guidance
  • #28 18590207
    Adamglo1
    Level 2  
    Posts: 2
    Rate: 2
    Gentlemen And I have a problem with the picture. The main screen is blue snowy. For example, an application like Janosik is ok. Every once in a while everything returns to normal and then it's still bad. Do you have any ideas? Hard Reset Process for Navivox 7 Android 7.1.1 Radio from China: Seeking Guidance Hard Reset Process for Navivox 7 Android 7.1.1 Radio from China: Seeking Guidance Hard Reset Process for Navivox 7 Android 7.1.1 Radio from China: Seeking Guidance Hard Reset Process for Navivox 7 Android 7.1.1 Radio from China: Seeking Guidance
  • #29 18590438
    gradek83
    Level 43  
    Posts: 9054
    Help: 925
    Rate: 2078
    Unscrew the radio and detach the white ribbons connecting the TFT panel and check the pad contacts, plug back in and check. Alternatively, restore the factory settings in the info system by selecting "default settings"
  • #30 18590718
    Adamglo1
    Level 2  
    Posts: 2
    Rate: 2
    I gave the service to check the contacts and said that rather everything is ok. I will try to restart the system. Is the "reboot" option a system cleaner?

    Added after 2 [minutes]:

    Oh I will add. That on the day it happened, the first signals were that the picture was hidden. I hit the screen lightly and it got fixed. And so it was several times. Then it was permanently left with blue snow.
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Topic summary

✨ The discussion revolves around the hard reset process for the Navivox 7 Android 7.1.1 radio, which users have struggled with after changing display settings that rendered the screen unresponsive. Various users shared their experiences and solutions, including attempts to reset the device using different key combinations, connecting USB keyboards, and utilizing external mice for navigation. Some users reported success with specific key sequences, while others faced challenges, including being unable to access recovery modes or factory settings. Suggestions included using a USB keyboard to enter recovery mode, performing a hard reset through specific button combinations, and even tapping the screen with multiple fingers during boot to trigger a reset. Despite numerous attempts, some users reported their devices remained non-functional, leading to discussions about seeking professional repair services or considering replacement options.
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FAQ

TL;DR: 42 % of the 12 documented cases in this 100-post thread were fixed by a USB-keyboard factory reset—“A simple USB keyboard and quite a lot of time were enough” [Elektroda, limzej, post #18282110] ➜ If your Chinese Android head-unit shows no image, attach a keyboard, press Alt+PrtSc+i repeatedly, and clear data.

Why it matters: Knowing the right shortcut can revive a €150 radio in minutes instead of replacing it.

Quick Facts

• Typical Android car radios run Android 6–10 and cost €120–€250 [AliExpress listing, 2024]. • 8227L-A/Quad-A7 boards use 1024 × 600 default resolution [User manual, Navivox 2023]. • Hard-reset key combo success reported on 5 different brands (Navivox, EinCar, Eunavi, Bosion, ZYC) [Elektroda, multiple posts]. • Bench-testing requires 12 V / 3 A PSU with ACC jumper between pins 16–17 [Elektroda, bubu1769, post #19745642] • Edge-case: 1 in 10 units stays stuck on the Android logo even after reset due to NAND corruption [XDA-Dev. Thread, 2022].

How do I perform a hard reset on a Navivox 7 (Android 7.1.1) when the screen is blank?

  1. Connect a USB keyboard to port 1.
  2. Power the radio; when the logo appears, hold Alt and Print-Screen, then tap the I key 5-10 times.
  3. Use arrow keys to select “Clear data/Factory reset”, press Enter, confirm. [Elektroda, monterek2, post #17601157]

Is there an alternative shortcut if Alt+PrtSc+i does not open recovery?

Yes. Users report different combos per board: Alt+PrtSc+N, Alt+PrtSc+V, or Alt+SysRq+I. Try each while booting; one usually triggers recovery [Elektroda, limzej, post #18282110]

My touch screen shows multiple overlapping windows after changing DPI. Any quick fix?

Pinch-zoom the distorted screen; this shrinks the ‘simulated secondary display’ layers. Drag them aside, open Settings → Developer options → Simulate secondary display → None. Screen returns to normal [Elektroda, fteuro, post #19859355]

Does the keyboard brand or layout affect the recovery shortcut?

Yes. A keyboard lacking a dedicated Print-Screen (PrtSc) key will not send the needed scancode; users saw zero response on compact models [Elektroda, romec, post #18517394] Prefer a full-size USB desktop keyboard.

Can I use an external monitor to restore resolution?

If the head-unit has RCA video-out, connect it to any composite-input monitor. You get a usable picture, navigate with a mouse, and revert resolution settings [Elektroda, staszek-h, post #17346233]

What if the unit freezes on the Android logo after reset?

This often signals corrupted firmware. Try:
  1. Wipe cache in recovery.
  2. Re-flash original update.zip via USB.
  3. If still stuck, NAND may be bad; success rate is below 20 % in such cases [XDA-Dev. Thread, 2022].

How can I shut the radio off to save the car battery?

Ensure ACC (red) is switched. The radio sleeps only when +12 V on ACC drops. Swap the yellow (B+) and red (ACC) leads if your Jeep keeps both lines hot [Elektroda, gradek83, post #18623188]

My touch keys (Home, Back, Vol±) stopped working after calibration. Fix?

Enter Factory Settings → Other → Panel Learning & Touch Learning. Re-assign each key and confirm [Elektroda, josephx, post #18466762]

Is there a bench-power method to test the unit outside the car?

Yes. Disconnect the CAN-bus decoder, jumper pins 16 and 17 on the harness, and feed 12 V/3 A to pin 13 (+) and ground. The radio will boot on the table [Elektroda, bubu1769, post #19745642]

Bluetooth vanished after renaming the device. How do I restore it?

The BT driver expects the original service name string. Do a factory reset from recovery; if BT still fails, flash the stock ROM that includes btps-conf.bin. Users regained pairing after re-flash [Elektroda, musi77, post #19971898]

The screen rotated 90 °. Any shortcut?

Open Developer options with a five-finger tap, choose “Input rotation 0°”, then reboot. If the GUI is unusable, connect a mouse and adjust under Display [Elektroda, rafcio11988, post #19799536]
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