micron

kernel_ramfs is located at /dev/block/mmcblk2p6 Have extracted with dd and copying through wifi adb. Interesting usb debugging is enabled in tvbox, but when connecting usb v3 cable to tvbox, host machine does not see the 'adb device', adb connection over wifi is ok. Has anybody used USB adb on this device?

Meanwhile, I have enabled ADB and debugging over wifi, and have connected to cli: 127|rk3528_box:/ $ uname -a Linux localhost 5.10.157-ab10 #319 SMP PREEMPT Sat Nov 11 21:49:28 CST 2023 aarch64 Toybox I think it is possible to copy firmware image from ADB session. If someone did/have instructions please point here.

yes, next week should arrive CH340G, will check with it

I'm using debian, no access to windows. with RX-TX locked adapter sends echos, but no data from box. will tryCH340G once it arrives, cause I saw in this post was same issue.

@pessimism want are the PINouts of this board? I see you have connected to it with UART. Can you please map RX/TX/GND to GREY/WHITE/BLACK based on you photo. I have tried CP2102 usb adaptor, looks like same case as you had - no transmission on 1.5Mb speed. Meanwhile ordered CH340G.

I thought there should be any console output to hdmi, ok will try with uart. By the way @fensoft are you using armbian on it? is it stable?

Hello I was able to build image (both debian and ubuntu) according to this instructions: https://gist.github.com/fensoft/1ff3ef81ab2bd9ed9364a564aa2cbcd5?permalink_comment_id=5576642#file-build-sh image is flashed to microsd card. However tvbox does not boot from sdcard - I see that it boots up regulary to android. Also I have found that in AV jacker on board there is button, so if hold it during boot - you are into Android recovery with options (reboot system/ reboot to bootloader/ fastboot /udpates ADB /updates from SD card/ factory reset /wipe / power off) The question is how to make TV box boot from sdcard? I was setting up armbian to orange pi - and it by default boots from sdcard. But with tv box according to posts and videos also should.... I'm trying to flash: Transpeed ATV Android 13 TV BOX RK3528 With Voice Assistant TV Apps Dual Wifi Quad Core Cortex A53 Support 8K 4K Video BT5.0 with 4G ram: https://www.aliexpress.com/item/1005007785484949.html