70mai A800 4K dashcam

Do you know what is the highest custom set bit rate it can record 4K + rear cam without errors? I'm using Sandisk Extreme U3/V30 if that matters.
And do you happen to have or know how to get the original ...public/shutdown.m4a sound file which was overwrited by the Olga's voice in custom firmware? I'd like to have the original *bling-blang* sound instead of human voice I think. Thanks.
I'm on Windows device so I don't think I can extract the sound file myself from official firmware package that easily?
50 mbit/s is the most optimal bitrate value. I don't think there is a need to set a higher value.
Original sounds in the attachment:
 

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One very minor improvement I did myself is to color emergency button yellow. It's now just piece of yellow cardboard but I'll order yellow luminous/fluorescent sticker/tape to replace it. I'm doing lot of night time driving(in winter it's completely dark in day time too) so it helps fast to find correct button to press when needed.

Editoitu_20220118_113222.jpg
 
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If the dashcam is in parking mode(with 70mai smart cable) and I manually power it up with push of a power button and also has this 20min constant power shutdown enabled does it turn off automatically after 20mins? Or stay on forever? Enter back to parking mode after some time? Something else?
 
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Can I use 70mai hardwire kit in place of regular cigarette lighter connection if I connect both ACC wire and +12V wire together to one of the cars ACC fuse with piggy bag adapter? Parking mode seems to rather gimmicky/useless to be honest, and I'd like to keep my cigarette lighter free for other devices. So it should only work as 12V to 5v converter basicly and provide power to dashcam when car is ignited.
 
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Answering to my own questions:

Automatic shutdown setting(5,10,20 min) doesnt work with 70mai hardwire kit even if you manually power up camera after car is shutdown. So if you forget power off the camera it will stay on forever. And when you power it off manually it goes back to parking mode.

I installed the HW kit as it is adviced so I don't know answer to second question about wiring.

Banggood.com still has this camera in stock with reasonable price (about 100 units left in time of writing this message). Aliexpress also have it but price is at least 200% compared to original price, not worth it imo. Hardwire kit and rear camera is cheaper in Aliexpress.
 
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The biggest problem with the A800 is not the low bit rate but the noise suppression. Nighttime video's are of much, much lower quality than daytime vids. The main reason is the over-aggressive noise suppression.
It would be really nice to be able to turn it down or completely off.
The second quality spoiler is the over sharpening, clearly visible as white edges around dark high contrast edges. Both effects are very hard /impossible to correct in post. Really sad because these are just settings which could be modified without any costs.
 
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Download International firmware 1.0.6ww:

How to:
  1. Format the memory card in the DVR.
  2. Remove the memory card. The DVR will turn off. Do not disconnect the charger.
  3. insert the memory card into the PC and delete all contents from the memory card. Not format.
  4. Copy the contents of the firmware archive to the root of the memory card. All eight files from the archive must be located in the root of the memory card.
  5. insert the memory card with the firmware into the DVR, press the far-right button and the power button. Hold 2 buttons until the arrow appears in English.Now you can let go.
  6. Went the flashing process.
  7. after flashing, a green check mark should appear and the DVR will turn off. Firmware is complete. Turn on the DVR with the power button.

Good luck!
does this firmware has new updated version that can use parking mode?
 
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Bright sunny day license plates readability distance is ~15-20 meters with this custom lens and ~50 Mbps bitrate at 4k30 (H.265/HEVC). I guess I've found the proper lens for this device.
Hi Nutsey. Bit of a late reply, but ive ordered this lens for my A800S (im hoping its as simple as removing the old lens and fitting the new one?) Also do you know if the A800S can have modded firmware to increase bitrate?

Thanks
 
A800 can use 512G or not?
A800 1.0.11CN has issue when using Sandisk extreme 512G,it work fine at beginning but now "I want take a picture"often missing photo and missing record videos (no other back camera) ; I bought new A800 cn(not A800s), it is 1.0.17 CN, this one also use same card Sandisk extreme 512G,works fine so far,
how do I solve this problem?
1.0.9ww can solve this?
 
A800 can use 512G or not?
A800 1.0.11CN has issue when using Sandisk extreme 512G,it work fine at beginning but now "I want take a picture"often missing photo and missing record videos (no other back camera) ; I bought new A800 cn(not A800s), it is 1.0.17 CN, this one also use same card Sandisk extreme 512G,works fine so far,
how do I solve this problem?
1.0.9ww can solve this?
I do not know, there has never been a 512 GB card. If you are running on 1.0.17c, then upgrade your first device from firmware 1.0.11 to the latest version.
 
I do not know, there has never been a 512 GB card. If you are running on 1.0.17c, then upgrade your first device from firmware 1.0.11 to the latest version.
thx for reply, I download app from Google play but it show 1.0.11 is newest, then I download from 70mai website,it can't sign in with same id,I need to register new id but fail to get security code,neither by mail or China and receive website
 
thx for reply, I download app from Google play but it show 1.0.11 is newest, then I download from 70mai website,it can't sign in with same id,I need to register new id but fail to get security code,neither by mail or China and receive website
You have the Chinese version of the A800. Install this app for China:

https://rom-cdn.70mai.com.cn/OTA_731_FULL_midrive_v2.2.5_20220226-1722_all_70mai.apk?t=1645867905996

- Launch
- Update the app to version 3.0.0.
- You need to register again. (click "Sign UP" and register via email).
- Add your A800 and upgrade FW

Use gmail email or another...
Try the temporary mail, I checked, the code came in 3 seconds. Website with temporary mail: tempail.com
 
You have the Chinese version of the A800. Install this app for China:

https://rom-cdn.70mai.com.cn/OTA_731_FULL_midrive_v2.2.5_20220226-1722_all_70mai.apk?t=1645867905996

- Launch
- Update the app to version 3.0.0.
- You need to register again. (click "Sign UP" and register via email).
- Add your A800 and upgrade FW

Use gmail email or another...
Try the temporary mail, I checked, the code came in 3 seconds. Website with temporary mail: tempail.com
gmail register can't get code ,temporary mail can…haha,already register and upgrade 1.0.17,format and work now,hope it don't happen problem again…
 
You have the Chinese version of the A800. Install this app for China:

https://rom-cdn.70mai.com.cn/OTA_731_FULL_midrive_v2.2.5_20220226-1722_all_70mai.apk?t=1645867905996

- Launch
- Update the app to version 3.0.0.
- You need to register again. (click "Sign UP" and register via email).
- Add your A800 and upgrade FW

Use gmail email or another...
Try the temporary mail, I checked, the code came in 3 seconds. Website with temporary mail: tempail.com
sandisk extreme 512G + A800 1.0.17 CN still have same problem,it work at beginning,when use storage left 161/476G,A800 can't record video anymore,taking photo ok this time but don't know whether have photo problem again;
it's bothersome I need to check the storage all the time and format,512G but just use 310G and have issue,any solution or other device can voice taking photo and 512G can work fine?
 

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You have the Chinese version of the A800. Install this app for China:

https://rom-cdn.70mai.com.cn/OTA_731_FULL_midrive_v2.2.5_20220226-1722_all_70mai.apk?t=1645867905996

- Launch
- Update the app to version 3.0.0.
- You need to register again. (click "Sign UP" and register via email).
- Add your A800 and upgrade FW

Use gmail email or another...
Try the temporary mail, I checked, the code came in 3 seconds. Website with temporary mail: tempail.com
I give up 512G and back to 256G,but i need voice control to take photo,so I can't use ww version, there are bugs in 1.0.11 CN and 1.0.17 CN version,photo maximum is 100 and video maximum is 1499,over 100 pictures it cover the earliest ones,and stop recording video when over 1499 ones.
128G also same photo maximum 100, video test take too much time don't know.

Is any other A800 CN version firmware?
all I can get is 1.0.11 and 1.0.17,both have issue.

ps. I try A500S , same photo maximum is 100,maybe it's 70mai limitation,it sucks...don't know how to improve
 
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