a400 any firmware

Me too need to solve this, i just bought a400 and right after i try to connect the camera to 70mai, the app offer firmware upgrade and after push the firmware to the camera, it suddenly shutdown and cannot be turned on again
 

FW_70mai_A400_1.3.17ww_OTA.zip

drive.google.com drive.google.com

Format the memory card in the DVR or via PC in FAT32. It is better to use a memory card less than 32 GB. Unpack the archive. Firmware from the archive "FW96570A.bin" copy to a USB flash drive in the root of the memory card and paste it into the off recorder. Next, insert the power and DO NOT press any buttons, and wait 30-40 seconds. During the update, there will be no inscriptions on the screen about the update, only the LED will turn blue and then red.
 

a400 wrong firmware installed (70mai Dash Cam Pro Plus+ Current version: 1.0.13ww Time published: 2022:03:17)​

FW_70mai_A400_1.0.6_OTA_(only_CN_VERSION)
i try root this not power on
 
Screenshot_2023-09-18-18-46-13-566_com.banyac.midrive.app.intl.webp
 
格式化存储卡在DVR或通过PC在FAT32。最好使用小于32 GB的存储卡。解压归档文件。固件从资料库“FW96570A.bin”复制到存储卡根部的USB闪存驱动器，粘贴到关闭记录器中。然后插入电源，不按任何按钮，等待30-40秒。在更新过程中，屏幕上不会有关于更新的铭文，只有LED会变成蓝色，然后变成红色。
 
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