Hi,
I have a AN6B01 based Cortex A8 android car radio and i want to create custom rom for this device. I am software developer and i have electronics knowledge.
Firstly i want to backup nand but this device has not usb port for connecting to PC. It has usb host ports for connecting modem, wifi, etc.
I rooted device but there is not a supported nand backup software. I tried wifi adb and similar apps but no luck.
I disassembled device and investigated circuit. There is usb hub chip and all usb ports connected to it (smsc usx2064).
1- If there is a usb port for connecting to PC how can i find it in circuit?
2- I can access nand chip on circuit. How can i backup and restore nand with a reader/writer device in circuit?
3- Is there an another solution for backing up nand and restore (software or hardware solution)?
I can't upload images because i am new user. If you want to see circuit images i can send you.
Thanks,
Related
Hi I have just noticed in the nokia diagnostic tool in the bottom right the three dots when pressed gives you settings option and within that option it says usb mode Zune or usb serial with an option to choose which one ... What's this serial in this case ?? Will this allow direct access to hdd and find a way to use as mass storage ? or can we use this to access the cpu or other parts of the phone ?? im not sure were the serial point to yet ...
Probably that would be the way to flash rom.
It seems to be used for reparing the device or OS level software debugging - it won't give you USB Mass storage device....Or it maybe if you found the right driver...from Nokia Engineer. On HTC phones, this can be used for tethering with the right driver.
Serial Ports are the port that were used for Modem and Mouse before USB was invented (COM ports) It is the very basic form of communication port that most device implements - which the chipset on Lumia also emulate Serial Port over USB cable. (http://en.wikipedia.org/wiki/Serial_port)
Ahhhh ok thanks very much guys
Didn‘t notice that before, I'll poke at it using a serial debugger once I get home, could be some interesting/fun stuff that can be done
In winxp you can load a driver for a system device. maybe at driver level the connection data can be verified. How:
connect in serial mode. it will at first time detect a nokia rm801 or whatever device and ask for a driver. it finds 4 devices.
for the first, the xp system will itself suggest
1) USB Composite Device
2) will not find anything, and show the dialog to go onto internet, search etc.
Don't search and choose the driver to install yourself, with the downmost radiobutton and click next, in the categories go to System Devices, the driver assist will suggest a Compaq Deskpro Thermal Sensor, install this. Will install without error
3) see 2.
4) see 2.
Because it installs a temperature sensor driver, it must be possible to monitor or probe somehow. help?
My guess that will only gain you access to temprature data from the phone.
Have you tried putty and a baudrate of 9600? this is the most common used baudrate, tho It is quite possible they use 16000 instead if the serial connection is ment to handle data transfer.
I've been looking at the schematics for the phone and I can not seem to find out which chip they have used for GPIO. We would probably need to get hold of service level 3 or 4 manuals for Nokia Care (unless someone wants to dissasemble their phone and have a look at the mainboard)
Edit:
After a bit more digging I think I've traced serial to be managed directly by the CPU.
This suggests that it's a purely SW serial console.
I haven't been able to find any details on WP7/7.1/7.5 SW serial.
Worth looking into but I guess would require disassembly of the software?
what is the protocol for example when doing a software update through Zune? It gets into some kind of bootloader mode then too.
can imagine the serial connection is hosted as sw in the phones sw environment when running the mango os. But is the serial mode still fully sw if you boot it? Don't know if you could find anything in the 15 sec of booting to mango
I think the easiest way of figuring out how this is done is to disassemble the .net library that is used in the WP7 update tool.
I will have access to the required tools when I get home. The tool is this one if you want to get cracking on it:
http://xboxmod.sylvester20007.com/TOOLS/WP7_update_tool.rar
my mobile huawei u8800 ..... 2.3.5
my computer never read my mobile to install usb drivers to root it
could some one give any manual way to root my mobile
if some one know it is (hardware issue ) or software
my computer never read even my sdcard or internal memory
thanks
Install the USB driver:
http://www.mediafire.com/?5z6i5cv8l6br292
Edit:
If your computer doesn't see that something has been plugged in at all, you might want to check your USB cable, and check to see if other devices connect properly using that port and cable.
[/Bhi i have a very common but strange problem i am mentioning below plz any good solution will be appritiated
1) i have chinese phablet mtk8389 hd89 dual sim, 1gb ram, gps,quadcore, wifi,bluetooth,and microusb port
problem is that if i connect it to any otg or usb cable to connect with computer it dont show any response but just start charging
then i find oht a solution that i need to fix a file insode android system/etc/permissions name of file android usb host .xml
i go to file and add the file but actually file not get added even i cannot edit any system file because i dont have permission
then i find out that for doing that i need to root the device
but how stupid is that if i dont have usb host mode active how i can onnect my device with computer for root?
it does not connect even dont show in computer that some usb device ger connected its very complicated can any one give splution
how i can enable usb host mode with out root device and if i have to root the device how i can root with out usb mode not working because with out usb host me the device will not be connected .
any suggestion will be appericiated
i think my device is not rooted but i have acces to android all system files but i am unable to edit any file like it have write
protected .
click on usb debugging!
or install moborobo pc suite for chiness android
problemmmmmmmmmmq
anabhi said:
click on usb debugging!
or install moborobo pc suite for chiness android
Click to expand...
Click to collapse
hello please understand my problem i click onusb debug is very simple answer
i know what i need to click and i click on every posible option but the problem is that
microusb port is not connecting with any thing if i connect with usb stick or with card reader by otg cable
or even if i connect with computer computer dont give any sound i know u will say install mobo robo suit
but my problem is that even if software is not install computer should tell that a usb device get inserted but could not be recognized
but no nothing is showing also i am not able to edit my android filesystem files
i listen if device is rooted it should not show the system files but i can see all files so its quite confusing plz give me a good solution
that how i can active the capacity to use micro usb port because right now its just charging nothing else
use z4root,frameroot android for root
gsm forum will give u better soultion ,search on google
try other usb cable !
anabhi said:
use z4root,frameroot android for root
gsm forum will give u better soultion ,search on google
try other usb cable !
Click to expand...
Click to collapse
i just wantto know thatif usb is showing no connection with otg or computer then how i can root with any software i try
some root softwares but it says no device connected
second i change many cables and with other devices same cables are working but not wi this one
third i just want that ,y microusb port start functioning for that i need that i cam edit android file system files
is there any way that i can edit the files like i get permission to edit system filez?
or is there any idea how i can enable super user because it is not enable any suggetion will be apperiaciated
Hi,
I am software developer. I have a Roadstar RD9200U car stereo and i want to modify os, apps or develop new apps. I rooted device with z4root but before starting i want to backup currently running os. If i make mistake i want to restore original os. CWM and TWRP are not supported this device and i can't backup current os. How can i get os image and restore? Below is my device info.
There is not a usb connector for PC but two usb hosts. I can connect with adb over wifi. If i push eject and power button while power off i think the device is searching image from sdcard and then power off. ADB backup command is not working it says that "closed".
Thanks,
sec_smdkv210
Android 2.2 Cortex A8 1Ghz
2DIN 6.2" WVGA TFT LCD (800x480)
UBOOT-20120613
Kernel-2.6.32.9-20120718
OS-v1.0-20121024_RAODSTAR_17:00
MCU-V1.32-121016
MPEG-0B.1.42-120927
APK
INIT-V1.00-20120816_16:12
RADIO-V1.00-121024-16:30
REAR-V1.00-20121015_12:00
UPGRADE-V1.00-121024-16:30
EQ-V1.00-121024-16:30
Music-V1.00-121024
iPod-V1.00-121024
AuxIn2-V1.00-121024
Video-V1.00-121024
BlueTooth-V1.00-0-121024
AuxIn1-V1.00-121024
SETTINGS-V1.00-121024-16:30
ATV-V1.00-121024
SWC-V1.00-121024-16:30
DVD-V1.00-121024
Camera-V1.00-121024
Hello, I'm facing this problem from many years in my phone, i can't plug in my mate 10 to any pc, it always says usb not recognized,
all drivers installed correcly with hisuite , my cable usb is new,
i changed today the USB charging port of the phone at Huawei care service, and i reset factory the phone , still same problem.
I'm still having the same stock rom on the device,
is the "usb not recognized" problem can be a software problem in the phone? thank you for your experience.
chahine21 said:
Hello, I'm facing this problem from many years in my phone, i can't plug in my mate 10 to any pc, it always says usb not recognized
Click to expand...
Click to collapse
I'll try to help you but I'm not an expert, and yet I've had EVERY problem you seem to be speaking about.
a. I have had broken USB ports
b. I have had broken USB cables
c. I have had the USB drivers not install on Windows
etc.
Given I've had some of the same problems, I feel for you, so my first advice is to simply give up on USB for everything that you can.
Specifically, if you can turn on USB debugging and Wireless debugging in the Developer options, you can operate the phone over Wi-Fi using the Windows monitor, keyboard and mouse as shown in my screenshots below.
You don't need anything installed on Android to use these FOSS solutions on Windows to operate the entire phone over Wi-Fi as of Android 12 (which eliminated the need for an initial USB connection to establish the Wi-Fi connection).
In summary, I have had similar problems with USB where I've given up on USB and switched to operating Android over Wi-Fi and even mounting the entire Android file system as a Windows drive letter over Wi-Fi using free software.
a. adb
b. scrcpy
c. vysor
d. webdav
Use Windows Event Viewer to check for error messages on the PC.
If the problem is the PC it will likely show up there and give you more troubleshooting clues.
Thread closed at OP's request.