Database Users

[Q]How to read kernel output from UART cable ?

Hello, I've made a UART cable and used it with note 2 (I used 610~619K resistor in case you're curious) and I was able to read from bootloader but there was not output from kernel
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so what should I do to read kernel output ?
one more question. I've tried to use the cable with my samsung galaxy star gt-s5282 but it didn't work so I tried different resistor values from 150K all the way up to 619K and it still the same. so I tried to use 300K to see if it's gonna enter download mode but it didn't work too. should I modify something on phone's board to be able to use the cable ?
thanks in advance

Albe96 said:
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thanks for replying, I'll try and tell you the results

LahKeda said:
thanks for replying, I'll try and tell you the results
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thanks for replying you too! waiting for the results. . .

Help unbrick my DZ09 with MT6260A chip

Hello,
I was able to brick my DZ09 watch when trying to upload a new firmware. I tried to fix it with several different firmware downloaded freely from the Internet. But every attempt has always ended with a 5095 error. Can you please help with their repair? These are watches with the MT6260A chip. I could not find any functional firmware anywhere on the internet and I'm afraid that the investment in the watch is already lost. The original firmware of the watch was not stored anywhere.
I opened this watch:
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Motherboard: MX9-V7.0
I use full test:
All OK, NAND not present.
Before it I use Total Format in FlashTool v5.1516.00.00. Format is done, screen:
I still cant flash ANY rom downloaded from here.
I bought other DZ09, but I found the MT6260DA chip here. Also, the memory is half and even the firmware of these watches, unfortunately in my old can not be uploaded.
Thank you in advance for any help.

You solved this problem? I have same smartwatch and bricked -(. Help me please.

안드로이드 펌웨어와 mcu업데이트 하고싶습니다

Android Head-Units
Discussion about Android Head Units
forum.xda-developers.com
Hello, I'm a Korean.
I bought Android all-in-one.
The problem is that you can't use the microphone. (When I speak)
We need a solution.(It's working, but it sounds very small)
And the system is very slow, so I want to update firmware and mcu. But
I have no idea what firmware to use. The seller didn't reply.
I'll post additional pictures later!
--------------------------------------------------------------------
안녕하세요, 저는 한국인입니다.
나는 안드로이드 일체형을 샀다.
문제는 당신이 마이크를 사용할 수 없다는 것입니다. (내가 말할 때)
우리는 해결책이 필요하다.
그리고 시스템이 매우 느려서 펌웨어와 MCU를 업데이트하고 싶습니다.
어떤 펌웨어를 사용해야 할지 모르겠어요. 판매자가 답장을 하지 않았습니다.
나중에 사진 더 올릴게요.
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Hi, just use update button ANDROID UPGRADE, I think that for this device you can find software in Russian forum PDA, search by your model YTxxxxxxxx

BMW Aftermarket Radio crash and bootloop

Hello Friends,
i have buy a Radio from China and it looks nice but i have a crash after some 20min. and afte crash it becomes a bootloop. After 1h can i start the unit again for 20 min.
I think its a wrong Firmware on this Unit.
On Mainboard Is a Label 1GB/16GB and on Android is 2GB/16GB on Infopanel
Have anyone a sulution for this ?
The seller Support wrotes me
"Hello, friends, you can restore the factory settings to see if the problem still exists, remove the heat sink of the machine and remove the cable connecting the main board and the button board to see if the downlink is not working. The password for factory reset is 159357 or 7890."
I do that all but none helps out and the Factory Pass is wrong my is "000000"
Thanks for help
Here a Video from crash and some Picture for Information
crash_bootloop
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Nobody have an Idea?
Can everyone tell me what Frimwares can be flash on this device? It dont must Android 11 iam fine with ver. 6-9 too when is aviable.
THX

China Android Head Unit ROM Backup Failed

Hello, I'm trying to back up ROM from a head unit that uses the ac8227l chipset that with Android OS 9 (seems to use Universal Android). The brand on the market is EMBASSY, I use the SP Flash Tool v5.2112.00.000 software which runs on Windows 10.
The device is not detected/read by the spflash tool if it is only connected by a USB cable, and it is only read or detected if it is supplied with DC current
I have carried out all the steps and procedures for backing up ROM from what I know, starting from doing a memory test to get a memory map, downloading ROM_BOOT1 with the readback process (successful) but during the ROM_USER readback process I always stop and fail at no more than 8% progress (Approximately 1.2 GB) even though the USER ROM size that was read during the memory test was around 14 GB.
please help with instructions if anyone knows how to solve this problem. Thank you.
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Problem is solved, it turns out that the backup ROM must be cut into several parts.

Jack Sparoh said:
Problem is solved, it turns out that the backup ROM must be cut into several parts.
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Embassy Brand using 8227L chipset as they cpu.