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Xperia X1 hardware details/JTAG testpoints

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By scholbert, Senior Member on 8th October 2009, 10:26 PM
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8th December 2009, 06:22 PM |#21  
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Hi drizztje,

amazing hack
It's time to look for some connection to the mainboard
Some time ago i took some pix of some parts of the board, that could be of interest.

EDIT:
Wrong location!
Deleted the pic.
Please stay tuned for an update

1. AUDIO35.jpg
Shows the audio jack of X1.
The switch contact is known to cause the "stick to headset mode" errors

2. ATMEGA48V_area.jpg
This is one important subsystems on X1 mainboard.
Handles keyboard and similar things...
I2C communication is also used for this chip!

Cheers,

scholbert
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9th December 2009, 09:29 AM |#22  
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Quote:
Originally Posted by scholbert

Hi drizztje,
1. I2C_Battery.jpg
This must be the DS2746 or similar, directly located at the battery connector.
Though the package mark do not match to the datasheet of Maxim, this should be the part attached to I2C.
scholbert

Hi scholbert,

I think you point to the wrong component. Take a look at the attached picture taken from phonewreck.com, I circled the component that I think is the DS2746 with green.
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9th December 2009, 10:54 PM |#23  
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uuuup
Hey drizztje,

i think your correct....
Damn, i'm bit busy these days, anyway we need nice connection to the I2C bus on the mainboard.

The problem is, right now i'm not in the mood to disassemble my X1 again, because i really need it and use it every day. I'm looking for some cheap broken hardware quite a while now, but unfortunately no success.
I will get a damaged G1 these days and i think to rip off the AK8976A from the board and put it somewhere inside the X1.
At least that's the plan
Any news concerning software?
Are there some WM devices using the AK8976A?

I found an interesting datasheet of the predecessor named AK8973.
See datasheet attached.

Stay tuned!

scholbert
Attached Files
File Type: zip AK8973.zip - [Click for QR Code] (300.7 KB, 42 views)
10th December 2009, 09:32 AM |#24  
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Quote:
Originally Posted by scholbert

Hey drizztje,

i think your correct....
Damn, i'm bit busy these days, anyway we need nice connection to the I2C bus on the mainboard.

The problem is, right now i'm not in the mood to disassemble my X1 again, because i really need it and use it every day. I'm looking for some cheap broken hardware quite a while now, but unfortunately no success.
I will get a damaged G1 these days and i think to rip off the AK8976A from the board and put it somewhere inside the X1.
At least that's the plan
Any news concerning software?
Are there some WM devices using the AK8976A?

I found an interesting datasheet of the predecessor named AK8973.
See datasheet attached.

Stay tuned!

scholbert

It would be nice to find connections on the motherboard, if you can please let me know
I also thought of buying a broken G1, but for me it would not be easy to rip the AK8976A off without damaging it, and there is still no datasheet available, we don't even know the pins of that thing. A G1 owner told me that the compass of G1 is not very reliable. In terms of software, there is a thread with some drivers for it here:
http://forum.xda-developers.com/showthread.php?t=547601
Look at the 8th post.
27th January 2010, 12:13 PM |#25  
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Hi there,

seems there's not so much interest on this topic...
Anyway, would like to refer to something i already posted here:
Quote:

If anyone may give a hint concerning the TFT-unit inside Xperia, i would be very grateful
I'm looking for part numbers on the back the unit!!

Some known and obvious facts about it:
- 3" WVGA (800x480) TFT-display
- resistive touch screen
- manufacturer Hitachi (at least Hitachi chipset)
- LED backlight

Perhaps someone with a disassembled unit is willing to take a high-res picture from the backside of the display.
Would be perfect to read the sticker with serial no./device no.

Any comments are welcome

scholbert
28th January 2010, 02:14 PM |#26  
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Hey guys, I just saw this thread! Seems to be headed in a direction that interests me. You can read about my idea here--> /showthread.php?t=623871 (It wont let me post a link yet)

I'd like to know your opinion on the matter
10th February 2010, 03:23 PM |#27  
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Hi,

just decided to give it a small update
Here's the english datasheet of the Epson display controller used inside X1!

Cheers,

scholbert
Attached Files
File Type: zip Epson_S1D13774_Datasheet_Rev.1.5.zip - [Click for QR Code] (2.52 MB, 140 views)
10th February 2010, 11:02 PM |#28  
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Quote:
Originally Posted by scholbert

Hi there,

seems there's not so much interest on this topic...
Anyway, would like to refer to something i already posted here:


Perhaps someone with a disassembled unit is willing to take a high-res picture from the backside of the display.
Would be perfect to read the sticker with serial no./device no.

Any comments are welcome

scholbert


Cant you go search on ebay for an lcd screen for xperia ?
Or can there be different ones?

I searched for xperia x1 screen

and i got a bunch of results :P

Ebay
11th February 2010, 02:59 PM |#29  
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Hey Chaosstorm!
Quote:
Originally Posted by Chaosstorm

Cant you go search on ebay for an lcd screen for xperia ?
Or can there be different ones?

Buying a display from ebay is not the point.
As you might see i'll try to collect some hard to find datasheets of the internal components of kovsky.

I need some input to start searching for information about the display unit.

Thanks for your reply anyway!

scholbert
3rd May 2010, 07:58 PM |#30  
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Quote:
Originally Posted by scholbert

I found a call to initiate the battery monitor of X1.
This little chip reports back the state of the battery and uses I2C communication protocol.

Hi,

I'm trying to write a i2c driver for this battery chip, but I doesn't know the devide name provided by i2c. Can you provide me with this name or give me a hint on how to identify the name?
9th June 2010, 11:26 AM |#31  
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HI

i have a xperia that's ribon cable is now totaly messed. so i have devided to turn this into a winmobile development robot board.

you guy's seem to be on a similar although not exact same track as what i am trying to achieve. has anyone found a better location to hook into the I2C bus, soldering on that tiny chip is not going to be fun,

basicaly i am looking for a way to break out rs232 serial comms to a pic microcontroller, as i cant interface to the X1's virtual comm ports, and dont want to use bluetooth to a secondary board, i was hoping to send i2c signals from the x1 to a Pic, then convert that to rs232 on the pic's side for my bot.

any thoughts? as to where beter pin are on the board?
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