Kinhank G1

Unsupported/EOL HW/SW
767

Yes, you need USB UART TTL and soldering iron

1 Like
768

I have both. But I know few people here have emmc tool. The uart solution would be appropriate to discuss on this forum.

1 Like
769
  1. Copy bootloader.img from hungphutho to SDCARD
  2. Insert SDCARD to your G1 SDCARD slot
  3. Connect PC to G1 using UART
  4. Open Putty or similar with speed 921600
  5. Turn on G1 after 2s then short the D0 testpoint wait until # prompt appear
  6. Downgrade your bootloader with command sdc_update bootloader bootloader.img
  7. Make sure downgrade successful
  8. Done
    photo_2024-10-28_09-14-16
    photo_2024-10-28_09-14-16720×1280 174 KB

this test point also work for me

8 Likes
770

Thanks for the tutorial :slight_smile:

1 Like
771

Full point,
For those who use Emmc tool

1000018101
10000181011920×2073 375 KB

2 Likes
772

Thank you so much.

Can I ask, I assume this bootloader.img - can be found somewhere in this thread?

It may be too late, but can you show a picture of where you connected the UART to the G1? Did you have to solder? [edit – I do see the GND, Rx, Tx, Gnd to the left of your photo - that is fine]

Thanks

773

#501 post
here:

2 Likes
774

Old bootloader for DV8910 (G1)

bootloader.img (4.0 MB)

bootloader.7z (3.0 MB)

1 Like
775

Delete the bootloader header first before you can use it

remove header
remove header1908×888 226 KB

1 Like
776

Thanks
I need to get some things right
1- this file bootloader.img for ATV11 or ATV12 ?
2- what UART you use? Is it possible to have a picture for clarification?
3- only copy file bootloder.img or write with tool to sdcard?

1 Like
777

1 . android 11 , currently no 12 for G1
2 . USB 2.0 to TTL
3 . only copy , no write

2 Likes
778

this steps not for unlock bootloader ATV12 after update?

779

Reading first line of instructions from post #727 again would be of great help :wink:
“1. Copy bootloader.img from hungphutho to SDCARD”

780

ATV12 ?
There is no ATV12, after update it is still ATV11

781

Currently, there is only android 11, instead of 12, 14 will come next February (other source).
The last OTA update fixed the adaptive HDR switch and locked the bootloader!
But V11 remains!

782

Sorry I got lost, I thought it was a Dune Homatics device.

783

I want to try on the weekend
Need to get order of operations

2 files here bootloader images

What is the 7zip compressed img
Is different than the other?

So first step is to edit image with hex editor?

Then copy to micro SD card

Then u-art with serial adapter
Downgrade Bootloader

After success
CoreELEC will boot now?

Or now can/ must flash hungphutho custom Rom
So CoreELEC will boot

784

The .7z file contains already edited “bootloader.img” ready to use; no need to edit it.
After success, flash custom Rom to use CE and Android without worrying to be blocked again.

1 Like
785

Power off doesn’t work in coreelec, it just reboot & is there a power off apk for android? I use my lg remote via cec that’s why these two are important to me. Thanks.

786

There are several of them, I use “Power Menu Shortcut – Shutdown-1.3.7.apk”.

1 Like