Hi guys.
Trying to hack my device and rewrite its bootloader to make a prototype for my project, but I'm new to this.
I already have root permission on ClockworkMod Android.
Initially I tried to reinstall OS to Android that I build from source code. But device hasn't got fastboot. So I decided to start from the bottom.
Current problem is that I have to locate UART on my device. Can't provide a photo of its board.
http:##s8.postimg.org#rqfzm4pdx#device.jpg
I read some articles about it and have prepared oscilograph and multimeter. But still, need some help.
Processor is AllWinner A13, have found its datasheet. UART RX and TX pins are 151 and 152, 125 and 124, 13 and 12, and I have no idea how to connect to it.
Could you give me some hints or useful links? Maybe some advice, please?
Thanks in advance.
Trying to analyze pins with mutimeter. Do I have to turn on the device?
Aaawwh, that's such an ugly board... (Compared to Oppo-7!)
Here's you pic.
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You need the correct USB-to-serial cable, like those offered by FTDI R232Vxxx models. But you have to know what voltage to use!
E:V:A said:
You need the correct USB-to-serial cable, like those offered by FTDI R232Vxxx models.
Click to expand...
Click to collapse
I've got this one too. I've borrowed it from someone, but I don't know how to use it yet.
E:V:A said:
But you have to know what voltage to use!
Click to expand...
Click to collapse
I found these four pins strange (in attachment), and checked it with multimeter. Pins from top to bottom 1, 2, 3, 4.
1-2: 3.25V,
1-3: 3.25V,
1-4: 3.25V.
What can I do to be sure than these are right pins before I start soldering?
^^ You don't solder anything. You only need GND attached + Rx to probe.
Those pins are probably not UART... No telling. What's on the backside?
E:V:A said:
What's on the backside?
Click to expand...
Click to collapse
:laugh:
Related
I created this tutorial to help HIM with problems in DOWNLOAD mode !
I did the tutorial because I am authorized technician Samsung , have expertise in the field !
Make your own risk !
As CREATE JIG?
YOU WILL NEED =
- one soldering iron,
- solder,
- Resistors arriving in value 300k,
- one USB cable Old,
- one stiletto blade.
INSTRUCTIONS;
peel the USB cable carefully ,we USE the plug that goes in the cell.
solder the resistors Equal to Below Image!
Now follow the instructions image:
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Video working jig:
Make your own risk !
if you share , remember the credits!
If you had troubles with memory flash and repair device was the only way, maybe this guide help you to avoid despend lot of money
Nice Guide work Robert
Tks
---------- Post added at 12:58 AM ---------- Previous post was at 12:01 AM ----------
Does this work with galaxy s WiFi?
Sent from my X9076
haseogu said:
Does this work with galaxy s WiFi?
Sent from my X9076
Click to expand...
Click to collapse
Hello
Its for all sammy devices, On video was tested with Pocket and Grand Quattro devices
How to make it from this USB otg?
Sent from my X9076
Hello man!
haseogu said:
How to make it from this USB otg? View attachment 3500322
Sent from my X9076
Click to expand...
Click to collapse
Watch the tutorial image , note that USB has 5 pinouts , from what I saw your so has 4 , or am I mistaken?
to make your jig simply just follow the tutorial!
Hugs! Sorry my english!
robertcarvalho20 said:
Watch the tutorial image , note that USB has 5 pinouts , from what I saw your so has 4 , or am I mistaken?
to make your jig simply just follow the tutorial!
Hugs! Sorry my english!
Click to expand...
Click to collapse
That's why I ask you, I slice my USB otg and found the 4 pin micro USB.
Sent from my X9076
Hi guys,
based on some recommendations I purchased the Mecool M8s Pro Plus
But: it seems that this (or my?) box does not have a reset button. There is the tiny hole on the downside of the box, opposite from the LAN and HDMI connectors but there is no button. I tried a toothpick and an office clip but it just does not „click“.
Any hints?
Best, Alex
Purchased mine recently, and just like you, I've faced the same problem: there's no reset button...
Can't find a way to install any firmware on this Android box...
Just check the Libreelec-Forum, there are threads describing how to do this.
What did you guys find out? I can't figure how to root it in order to run 'reboot update'
Kick4U said:
What did you guys find out? I can't figure how to root it in order to run 'reboot update'
Click to expand...
Click to collapse
indicate reset button
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algdu83 said:
indicate reset button
Click to expand...
Click to collapse
Thank you, I opened my box and had to short the terminals since the reset button wasn't there.
Finally got it to work!!! Once again, no reset button was installed, but shorting the solder points on the PCB worked!
Kick4U said:
Thank you, I opened my box and had to short the terminals since the reset button wasn't there.
Finally got it to work!!! Once again, no reset button was installed, but shorting the solder points on the PCB worked!
Click to expand...
Click to collapse
Please can you make a photo of solder point you use to reset
Thanks
Nêhko' said:
Please can you make a photo of solder point you use to reset
Thanks
Click to expand...
Click to collapse
I already gave that box away to a friend, but should have my hands on another.
It was the exact same location where the reset button supposed to be:
https://img.xda-cdn.com/Qg5qzR_gz3q...tab.com/filedata/fetch?id=659157&d=1501188789
Hello XDA community! I need help putting this Tomate S905XQ box in bootloader mode so I can flash it using USB Burning tool.
I tried everything without luck.
What I have done so far:
Plugged the USB cable in the PC, hold the visible RESET then UPDATE buttons but unfortunelly, no dice. (Do I have to plug the ac adapter)
Also tried holding the "hidden inside" UPDATE button but also without any luck.
I want to flash Aidan's Custom ROM v9 on this box (1GB/8GB).
Any help is really appreciated, including how to backup this firmware because I haven't found any version on internet.
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Try shorting it , the pins are on the chip just above where it says 905x , have the box attached via usb and have the usb burn tool open , get somehing like sim tray tool and one by one place it in between the pins untill it shorts it will connect ...you may or may not need power plugged in and make sure you use the otg usb slot..
Good luck
Thank you very much for your reply! I'll try that on the weekend.
as mentioned above shorting the pins AKA Mask ROM Mode will be your awnser, look at this thread, look for same type of chip as you have (M logo) even if chip aint the same number mask rom mode will probobly (but not always) be the same, there are 2 chips similar to yours in the thread, so try with those 2 first
NAND Chip Mask ROM Mode Short Location - FreakTab
Hi Everyone We have created this thread to collect all the NAND pin Short to Mask ROM Mode locations for all our members. Because firmware comes on android
forum.freaktab.com
Hello guys hope ur all doing well.
I have problem with my Sony z5c,when I try to connect the USB otg don't work but when I connect it in recovery it works perfectly. Any solutions!?
Hello,
Are you on stock Android? If not, which ROM or version are you on?
By the way if you are on a ROM, it would be better to reply to that thread.
After some (I don't know which) release of Android, you have to enable USB OTG from the quick settings before plugging in USB devices.Looks like this:
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If it isn't showing up try finding it in the edit (pencil) button.
litelinux said:
Hello,
Are you on stock Android? If not, which ROM or version are you on?
By the way if you are on a ROM, it would be better to reply to that thread.
Click to expand...
Click to collapse
I'm using lineageos 17 android 10
litelinux said:
After some (I don't know which) release of Android, you have to enable USB OTG from the quick settings before plugging in USB devices.Looks like this:
View attachment 5239775
If it isn't showing up try finding it in the edit (pencil) button.
Click to expand...
Click to collapse
I try it but didn't work
FaresFRS said:
I try it but didn't work
Click to expand...
Click to collapse
Sorry for the late reply
It could be the OTG connecter's problem, as they are often cheap and fragile.
Have you tried using it on another phone?
(Or used other OTG connecters on your phone?)
I'm on lineageOS 18.1, but 17.1 should work better.
litelinux said:
Sorry for the late reply
It could be the OTG connecter's problem, as they are often cheap and fragile.
Have you tried using it on another phone?
(Or used other OTG connecters on your phone?)
I'm on lineageOS 18.1, but 17.1 should work better.
Click to expand...
Click to collapse
Yes I used it in another phone and it works
And also I tried it in many custom Roms and still the same problem.
OK I'm running out of ideas
How about doing it in this order:
1. Plug your USB device onto the connector
2. Enable USB OTG from quick settings
After that, you should see a toast saying "Starting USB OTG Detection for 30000 milliseconds"
3. Plug in the USB OTG connector
That's what worked for me. For reference, the toast looks like this:
OK I will try
One shortcoming of 12T pro is slow file transfer speed, any suggestion?
Make sure that it's running USB3.
(Does it even have USB3? Type C connector is a guarantee of nothing.)
Check to see if there is a difference in writing to /sdcard vs. /data/local/tmp
There could be some slowdown due to sdcardfs or whatever is handling /sdcard.
If rooted, run dmesg to make sure that the USB is not thrashing.
Yes, because this phone used USB2.0.
USB2.0 is the characteristics of Xiaomi.
Dispossible said:
Yes, because this phone used USB2.0.
USB2.0 is the characteristics of Xiaomi.
Click to expand...
Click to collapse
Thats right. Usb 2.0 is so slow.
Renate said:
Make sure that it's running USB3.
(Does it even have USB3? Type C connector is a guarantee of nothing.)
Check to see if there is a difference in writing to /sdcard vs. /data/local/tmp
There could be some slowdown due to sdcardfs or whatever is handling /sdcard.
If rooted, run dmesg to make sure that the USB is not thrashing.
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What should I look for?
That looks ominous, but Android is a never-ending crescendo of errors.
Note the time (1968), do another transfer and see if there are new errors.
Use WIFI to share files between pc and android for example X-plore app with WIFI 6 u can get 50MBps instead of 20MBps with USB
Personnaly it tryed to send a movie of 1.16go, it took 33 sec so not so slow, i was wondering because after sending back 70go of data last time it didnt took so long, im on 12t pro btw
Correct me if im wrong but 1160mo/33s = ~35mo/sec on a usb3.0 hub wich look pretty ok even if its not ssd speed
I sent on my usb 3.0 usb hdd and i had arround 91mo/sec ... it took 14 sec to send