After disassembling an i896, I was attempting to fix a malfunctioning mini usb port. I did not see any physical differences from i897 board infact the mainboard is labeled as i897. The daughterboard for sim and microsd is also labeled an i897 just for reference.
I have already looked at images of a disassembled i897 and could not find a location for the audience chip. Has anyone have any clear images of the i897 board, with the audience chip clearly identified?
The board I had, was manufactured in May 2010 on the actual circuit board. There was no reversion indicating it was special for the i896 model so I'm assuming it does have the audience chip.
On a sidenote that particular board was stable for overclocking purposes could do 1.4 ghz at 1300 mv and 1325 mv. So that particular batch maybe pretty lucky if you have it.
Also is there a water indicator strip near or on the mini-usb port? I could not fix the unknown usb device in download mode. I was trying to determine if it had corrosion on it, but I have cleaned the contacts to be sure and same issue.
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This is the nexus one board showing the audience chip
And one on a Captivate board. This was taken by a member of the board, and is an I897. The chip is to the left of the processor in this pic. Did you happen to take any pics of yours? Or would you be willing to tear it apart again to take some?
Pictures
From what you've shown me I'd need to look under the shielding.
However I did not remove it and sent it back for repair to Rogers for warranty repair.
I did take pictures but there somewhat low quality. I can take high res pictures with a Nikon w/ macro lens but I still haven't heard word what was wrong with the unit and whether they'll send it back. My current replacement isn't functioning as well as the old unit.
I suspect it does have it though no board reversion indicator when you look by the mini-usb. Indicates model and date of manufacture.
I hope these images are sufficient.
Solution???
Bumping an old thread but we can't tell by comparing the above ATT board picture to the ROGERS board picture because it's covered by that metal protector.
Does anyone have a definitive answer? I want to believe the I896 has the chip, even if it's just my wishful thinking .
Related
I just got this phone as a gift a month and a half ago, and somehow, just somehow the screen got cracked in my pocket. Everything still works fine, phone works great as always, but the screen is all messed up.
I went to a local Telus store, and they said they don't do repairs on physical damage which is stupid IMO. And I think the warranty my brother paid for might be up, he's not sure. And even so, I'm almost positive they'll say the warranty doesn't cover physical damage. The guy said my only hope would be to look for a 3rd party company online that can do repairs.
I tried looking around for a Screen/Digitizer Repair Kit for telus online, but they only had some for the sprint model of the phone. I know they're the same, but the screen shapes are clearly different.
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I don't know what else to do, so I'm hoping you guys can help somehow.
Thanks in advance!
Replacement LCD
Hi. Have a look on ebay. I would recommend you buy a complete LCD and digitiser pre-assembled in one unit... These typically cost around £35 UK pounds when bought from sellers in Hong Kong. You will need a set of jewellers screw drivers (mini torx drivers), and a set of tweezers. Also, would recommend downloading a Service Manual for the Diamond if you have never taken one apart before (you can find this with Google). You need to be very careful though, because there are two small black coaxial cables inside the device that carry the GPS, bluetooth/wifi signals from the upper antenna board to the lower motherboard. These are very easily damaged and it is difficult to locate replacements. I've changed a few LCDs in the past and it is relatively easy if you are careful and methodic about taking the device apart. If you are unsure, I would recommend finding a third party replacement service on the internet to do it for you....
i was seen one of your post. my diamond screen was broken and i get it to a serviceman. after he replace its touchscreen i lost my wifi,gps , bluetooth and phone microphone. can you help me to repair it? thanks alot
I recently replaced my digitizer and the housing after letting my precious nexus one fall on some rocks. Everything went relatively smooth but since the replacement the phone has a really really bad reception. I asume i made a mistake during the reassembly but i have no idea where the antennas are. Can someone point me in the right direction?
Kind regards.
Seems like this connection is a little loose, if necessary place a small piece of tape over it if it won't click together. Did the job just fine on mine
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that is the gps antenna right? That one is propperly connected in my device.
I would like to know the location of the cell antenna.
I had the same problem. After I replaced the digitizer I could barley get a wireless signal but everything else worked perfect. I ending up selling it on ebay as a parts phone. Hope you find a solution.
The cell antenna should be at the bottom of the phone because I remember people complaining about how holding the bottom of the phone decreases the signal.
Necromanx said:
that is the gps antenna right? That one is propperly connected in my device.
I would like to know the location of the cell antenna.
Click to expand...
Click to collapse
Ah sorry, as the above post said it's under the bottom part of the phone. Something could have been moved in the removal/replacing of the bottom part of the phone, it is awkward to get off.
I would assume it's all the copper colored metal inside the phone that acts as the antenna. mine is similarly plagued, it seems that after taking one apart, it doesn't quite work as well.
i barely touched the copper sheet.
Does anyone knows what this is?
(type "Antenna Flex Cable Ribbon Sticker" in google, i am not allowed to post urls yet )
I didnt saw these parts in my phone
OK, so far in an attempt to get a better signal in my office, I have bought two different external antenna types to get a signal. I bought them as I wasn't sure what the heck the connector type is. (For those that don't know, there is an external antenna connector directly below the MicroSD slot, covered by a black sticker).
I have bought an MMCX aerial: Does not fit, connector too small
I have bought an Motorola V3i antenna as the connectors look the same: But it's too short to reach into the port on the O2X :-( I cannot find out what this connector type is however!
So... next I was going to try a CRC-9 antenna for it... but it's getting expensive lol. So.. does anyone know for SURE what the connector type is I need please?
I'd think your best bet is to take a close look at the service manual
Downloading. Its the same connector with the tapered insulator as the V3i and the TG01. I just can't find the name of the connector to get something that will fit it!
Right, after looking at the manual, I believe it to be an MS-156 series connector of some description (It's listed at MS-156C). (see page 239 in the service manual). See here for a description: h t t p://www.digikey.com/Web%20Export/Supplier%20Content/Hirose_26/PDF/hirose-MS156C07018W.pdf?redirected=1
It's likely just a test connector, but if I can use it for an external antenna like on the V3i, that would be fantastic.
EDIT: here is a very good reference: h t t p://www.hirose.co.jp/cataloge_hp/e35801678.pdf
The adaptors are massive though as it's intended as a test terminal, which is odd that they made an official external aerial for the Moto V3i with this connector in that case.
The most readily available adaptor is at least £24 euro's from a spanish website. What I might do is order a CRC9 connector, and see if I can file down the ends, to expose the centre wire and get that to fit.
this was really interesting to read (as i'm thinking about doing the same thing)
hope you find a good solution!
I get paid soon, so I'll order the CRC9 pigtail as an experiment to see if I can get it to fit. £24 (Plus whatever they want to deliver to the UK) is a lot to pay for a tiny cable, so if I can find a much cheaper method I'll give it a go
Once I found out the connector was MS-156, you can see loads of posts on different forums of people who have gone through exactly the same process as me lol. Annoyingly, they never update their posts to say what happened
Scougar said:
Annoyingly, they never update their posts to say what happened
Click to expand...
Click to collapse
Oh?
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Scougar said:
I get paid soon, so I'll order the CRC9 pigtail as an experiment to see if I can get it to fit.
Click to expand...
Click to collapse
It's been soon
Oh just caught your "O2X - Sold" sig
Hi forum.
I have a friend's captivate that had this "maraca" sound, I disassembled it and it turned out that the port that connects the speaker's flex cable fell off. Is there a way to re-solder it back? And if so, wouldn't it melt the plastic from the port itself?
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This is not the actual board's pic, it's just a pic I found.
Hard to say without a picture of the damage.
In general if just the soldered joints became detached from the pcb and the tips and the cable are ok, with decent soldering skill, yes they can be resoldered.
If the cable is ripped in any way and maybe a portion of the cable is still soldered to the pcb, you're going to have a bad time.
Thanks for the reply. The port connects to the board with the joints you mentioned. There is no cable damage, the port just fell off. I can see the joints with a magnifying glass, but it looks difficult to solder with just an iron and the mag glass.
Sent from my PG86100 using xda premium
I can there are 6 joints to connect, i also see that there are 2 more on the left side, but those are very difficult since they are below the port.
I was confused thinking the cable was directly soldered on with the tips, but it's the cable port. OK. In your pic of the board I only see 6 solderable points on the PCB I don't see an extra two on the side, so it doesn't look like you need to worry about the extra two.
It does look like it would be a challenge to solder, but their may be room to scoot the connector up a bit so you're just leading a thin bridge of solder from the connector to the joint allowing maximum work space.
There are tricks that would make this easier to someone who is pretty accomplished as this stuff (pre-creating the bridges, etc..)
Pretty sure someone like MobileTechVideos could repair this for you.
I think I'm better off buying the board itself ( thank you Samsung for making these things apart from each other). Thanks for the tips!
Right, let me start off by saying that I am not a professional, I do not know for certain anything mentioned below, and I do not suggest you whip out the soldering iron and attempt to modify your tablet.
This is my personal analysis of the images of the mainboard which iFixit posted.
I have annotated all of the below images myself, if anyone wishes to 'borrow' these images, please reference this thread.
right with that out of the way... on to the PCB!
this is the top (side first seen when you remove the rear of the tablet) side of the mainboard. I have labelled all the connectors.
the most interesting thing to note here is the connector just next to the square cutout, one which I suspect to be for the rear facing camera which was on the ASUS MeMO 370T which we all suspect this tablet to be.
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when the PCB is flipped, you can see that I have once again, labelled all the connectors.
Note the silkscreen on the board which indicates that this is indeed ASUS' ME370T mainboard
Note also, the missing components around the regulator... possibly to form part of the driver for the LED flash the rear-facing camera once possessed.
Also, there is a header at the bottom of the board for what I believe to be the HDMI port we all so desperately desire!
and finally, this is a cropped image showing the mainboard still in situe. you can see the framework within the square cutout of the board, I believe this to be for the rear-facing camera/ LED flash unit.
Theretically (at least in my mind) it SHOULD be possible to take the HDMI and camera modules from an ASUS ME370T BRANDED tablet and after soldering on the relevant connector, plug in the devices and have two of the three most complained about 'missing features'
perhaps some of the devs on here could take a poke around the firmware and see if there are any drivers/references to a second camera/ HDMI port.
please remember, these images are the property of iFixit and I take no credit for them.
anybody have any other suggestions on what these unpopulated connectors could be for? or anybody have access to the tools to research this further and confirm my suspicions? I would be interested to hear what you guys think!
I don't think it would really be worth the effort and cost to rebuild it, as opposed to just buying a tablet with the features you want already on it. It seems more like a hehe look what I can do thing to show off to all your nerd peeps. lol
How many 7 inch tablets are there with quad cores and 1280x800 HD screens?
Which other ones can we buy?
I don't know of any alternatives. If we can solder an HDMI port onto that connector and make it work somehow... I'm doing that.
I suppose we'll see if it's possible over the coming weeks.
What I take away from this is that the NFC antenna is on the top edge, so two tablets would go head-to-head to communicate. Within about 2 inches...
There is already another thread discussing the iFixit teardown, please continue all further discussion there.