Attached is a picture of the motherboard.
I have made a circle on one part of it. As you can see, there is a blue thing to the right - before, there were 2 blue things next to eachother. But the left blue thing is now gone, I don't know where... But seems like it has fallen out somehow...
Is it possible to solder this together? Or do I need the blue thing there?
When trying to use the motherboard, everything works very well - EXCEPT the touch screen, I cannot do anything because the screen doesn't feel my fingers (nowhere on the screen). And no, I have no clue if this is the reason for the touch screen not to work, but that's my guess as it worked good before.
Any help would be much appreciated, I don't have much knowledge about soldering and so on, as you might already have understood from my description above...
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I would highly suggest that you do not try soldering if you don't have any previous knowledge or experience. As for if the "blue thing" is needed or not I am unsure because I myself know little about what each piece does on the board. But as far as the touch screen issues goes, if the touch screen worked before the blue piece came of, it most likely has to do with it. If it didn't (or even if it did work before), try finding a second device that is the same as yours (or if its cheap and you can afford it order a new lcd/digitizer for it) and try connecting it to that motherboard and see if it works, if so problem fixed, if not, you may be able to take i to a phone repair place and have it fixed, though most times getting a new motherboard/device would be cheaper.
The-10th-Doctor said:
I would highly suggest that you do not try soldering if you don't have any previous knowledge or experience. As for if the "blue thing" is needed or not I am unsure because I myself know little about what each piece does on the board. But as far as the touch screen issues goes, if the touch screen worked before the blue piece came of, it most likely has to do with it. If it didn't (or even if it did work before), try finding a second device that is the same as yours (or if its cheap and you can afford it order a new lcd/digitizer for it) and try connecting it to that motherboard and see if it works, if so problem fixed, if not, you may be able to take i to a phone repair place and have it fixed, though most times getting a new motherboard/device would be cheaper.
Click to expand...
Click to collapse
Thanks for the reply.. I have actually ordered two other "broken" phones, so I will receive them in a week or something... And I will do exactly what you suggested, to try another motherboard and see if it is a problem with the screen or motherboard. I am very sure it is the motherboard though, because the lcd and digitizer worked great just before I discovered that.
Would still appreciate answers regarding soldering this, if that is possible or not.
Solder motherboard, possible?
Robinjoeh said:
Thanks for the reply.. I have actually ordered two other "broken" phones, so I will receive them in a week or something... And I will do exactly what you suggested, to try another motherboard and see if it is a problem with the screen or motherboard. I am very sure it is the motherboard though, because the lcd and digitizer worked great just before I discovered that.
Would still appreciate answers regarding soldering this, if that is possible or not.
Click to expand...
Click to collapse
It seems like your missing a resistor . you can simply measure the values on the existing component and order the same value on digikey. let me know if you need help with soldering
turbotronics said:
It seems like your missing a resistor . you can simply measure the values on the existing component and order the same value on digikey. let me know if you need help with soldering
Click to expand...
Click to collapse
Ah, a resistor! Not easy to know when you have no clue what it is...
How do I measure the values on the existing component? I don't really think I need any help with soldering, but pretty much everything before that... Haha
Thanks!
Related
I have 2 broken xt720's that I need to make one good one out of. I cant find anything on the web about how to disassemble this phone. I have repaired many iPhones, radios, computers but I just would like a guide on how this phone comes apart before attempting it. Thanks
Nobody even attempt to do it? I havent even looked at it yet...
seems like you'll be the first one to bodly go where no one has gone before
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you'll be our hero
please post lots of pictures and details after you open them up
Thanks
Will do. Thanks
marvinmadman said:
I have 2 broken xt720's that I need to make one good one out of. I cant find anything on the web about how to disassemble this phone. I have repaired many iPhones, radios, computers but I just would like a guide on how this phone comes apart before attempting it. Thanks
Click to expand...
Click to collapse
I think I can get original Motorola guide for service centers on disassembling XT720. Will try to do it and will post the results here.
Took mine apart today...
its fairly simple and only 6 screws
two are exposed
two are partially exposed near the bottom
and two are hidden (under 8.0 xenon sticker and the other is under a screw sized sitcker in the corner by the lense)
Yeah I ended up just doing it. It wasnt bad. But I needed to changed the earpiece speaker which is attached to the line in jack, power button, and volume keys via a ribbon that is sticky taped around a thin edge of the case. It was a *****, but not that bad. Sorry I didnt take any pics. Too impatient.
Had the misfortune of breaking one of the SIM slot pins.
Hope you guys could help out here. How to remove the screws under :
a) Speaker Grill without damaging the grill
b) Stickers (beside the camera and the 8.0 label) without damaging them
thanks
danny
Both are sticky taped on. Grab under an edge and peel off.
Took apart mine yesterday and replaced the LCD , now the phone is not powering up , will take it to a shop here to see what happened
Xjester said:
Took apart mine yesterday and replaced the LCD , now the phone is not powering up , will take it to a shop here to see what happened
Click to expand...
Click to collapse
Where do you get something like an XT720 fixed in isl? Blue area? Or do you take it somewhere in pindi...
HELP!!
Ha no one made a video of the disassembly yet!! I'm too scared to READ instructions and do it!! Can one of you please post a video just showing how to take the screws out..??!!
Thanks in advance
---------- Post added at 10:55 AM ---------- Previous post was at 10:28 AM ----------
harleyhemant said:
HELP!!
Ha no one made a video of the disassembly yet!! I'm too scared to READ instructions and do it!! Can one of you please post a video just showing how to take the screws out..??!!
Thanks in advance
Click to expand...
Click to collapse
FOUND IT!!!
http://www.youtube.com/watch?v=_WCVqEMZbU0
Xjester said:
Took apart mine yesterday and replaced the LCD , now the phone is not powering up , will take it to a shop here to see what happened
Click to expand...
Click to collapse
Hi, I have disassembled XT720, replaced digitizer then assembled back but I have to same issue - phone is not powering up. So I revert old digitzer back but the same ... I'm really sure that I make all of processes very precisely, no connectors are unplugged, everything is on right place ... everything is like before.
Is there any thing what I missed? Thank you for feedback.
nosretep said:
Hi, I have disassembled XT720, replaced digitizer then assembled back but I have to same issue - phone is not powering up. So I revert old digitzer back but the same ... I'm really sure that I make all of processes very precisely, no connectors are unplugged, everything is on right place ... everything is like before.
Is there any thing what I missed? Thank you for feedback.
Click to expand...
Click to collapse
same happened to me...and some problem was with power button, but I didn't bother with it
try to connect charger and see what is happening
(I think that if you connect computer and phone it will boot up)
hello i have a tg01 with dead usb...... not charging and in windows pc it says that it is malfunction..... i look at motherboard and have something missing near usb jack... who have a detalied picture af motherboard please give me one to see what's missing.... thanks
TG01 Motherboard
Here is a picture which I hope will help. Thee is also a French site which I will try and find the URL for (I have - just need to look up) which shows a step by step dissasembly which is excellent.
Good luck
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Regards,
Kevin
kevinpwhite said:
Here is a picture which I hope will help. Thee is also a French site which I will try and find the URL for (I have - just need to look up) which shows a step by step dissasembly which is excellent.
Good luck
View attachment 627214
Regards,
Kevin
Click to expand...
Click to collapse
Here you are.... Oh la la!
http://toshiba-tg01.forumactif.com/t1205-tuto-demontage-du-toshiba-tg01
Pere said:
Here you are.... Oh la la!
http://toshiba-tg01.forumactif.com/t1205-tuto-demontage-du-toshiba-tg01
Click to expand...
Click to collapse
Perfect - exactly the one I was referring to.....well done and thank you, Pere
thanks you guys.... great help
Hey, it's my toshiba!
i appologise if this is a stupid question but do you think cleaning and making the motherboard and cpu and everything nice and clean and shiny and removing dust and muck or whatever will make the phone have a longer life and perform better?
chdeul said:
Hey, it's my toshiba!
Click to expand...
Click to collapse
Hi chdeul! Nice to hear from you! Great job, as you can see, I value your tutorial a lot!
Best Regards
i have problem with nfs shift hd .. the phone is unresponsive and i need to reset... when i install chainfire hd2-3d patch driver it's working but at lower framerate..... anybody have this problem?
jonnyhall1bmx1 said:
i appologise if this is a stupid question but do you think cleaning and making the motherboard and cpu and everything nice and clean and shiny and removing dust and muck or whatever will make the phone have a longer life and perform better?
Click to expand...
Click to collapse
A qualified yes to your question....
A buildup of dirt may in time cause unwanted electrical contact and possibly spurious behaviour. This would be more likely if there was carbon or metal dust present; unlikely in normal domestic usage.
If you do want to clean, then I would strongly recommend using a proper 'air-duster' aerosol for stuff like fluff or if necessary a proprietary electronic cleaning solvent (eg Electrolube, which can be obtained from Maplin or Radiospares or a similar supplier). Do not attempt to brush the circuit board or use things like cotton buds as there is a high risk of causing mechanical damage to components.
Hope that is of some help...
Best regards,
Kevin
could someone tell me what is this and what value it have.... that i have missing on pcb of mi tg01
Unfortunately, I dissasemble my TG01 2 days ago. If I dissasemble it apart soon, I would look.
Mine Too!
My TG01 has just started to do exactly the same thing
I have to wiggle the USB charger vigorously in the jack just to get it to charge, and it always drops the connection halfway through syncing when connected to the copmuter
I'm thinking about opening it up and taking a closer look at the connector, I just want my TG01 back to normal again Maybe I'll even try replacing the jack using some parts off ebay depends if the jack looks loose
I'll open it up some-point this weekend and take a look for you onell...
You marked left one but I can see missing part on the right....
the right piece is there but is not a good picture..... the left one is missing
This is Zener diode 1N4764A-TAP or similar cos E2 mean GLASS-e2
thank you very much.... i replace that zenner diode .... but usb still dont work.... i gess something else is fried uffff..... any ideas?
onell said:
thank you very much.... i replace that zenner diode .... but usb still dont work.... i gess something else is fried uffff..... any ideas?
Click to expand...
Click to collapse
My suggestion: On these days, you can find a TG01 for 100€ or less googlyng a bit.
You can also ask for a TG01 with broken screen for a bargain....
And if you only want the Motherboard, you could contact with someone needing the touch screen and share it!
good luck!
Problem is there is no FUSE in the usb charging line as is in majority handsets with usb charging and usb host.
My tg01 cannot charging using wall charger.I think its burn the charger ic and smell like burning rubber before.Anyone know which one is the charger circuit ic?.Is there charging ic is the right one on upper pics???
HTC Desire S
Purchased in Israel (eline)
P/N: 99HMN143-00
IMEI： 358967049XXXXXX
S/N： SH1AJTJXXXXX
I need to replace the display and I was thinking about buying this, however the site warns that there are two types of LCD flex cables - narrow and wide. Is there any way to know (without opening up the phone) whether I have the narrow or wide LCD flex cable ?
And if I do have to open the phone up, what is the minimum I need to do in order to determine the flex type (going by tutorials such as this,this or this)? Also, I don't have any reference, so even if I see the cable I'm not sure how I'll be able to tell whether it's the narrow or wide one ?
Thanks
It's never a good idea to publish imei numbers
Swyped from my DesireS
ben_pyett said:
It's never a good idea to publish imei numbers
Swyped from my DesireS
Click to expand...
Click to collapse
Thanks, but as you can see I've censored the last 6 digits (5 in the s/n)
t0x1n said:
Thanks, but as you can see I've censored the last 6 digits (5 in the s/n)
Click to expand...
Click to collapse
Why exactly do you need to know this about the flex cable? I'm just curious...
Oops, sorry..
Swyped from my DesireS
enigmaamit said:
Why exactly do you need to know this about the flex cable? I'm just curious...
Click to expand...
Click to collapse
I need to buy the right display replacement according to the flex cable type. I thought that by providing the P/N, S/N and IMEI (the latter two in censored form, of course) I might provide enough information to deduce the type.
t0x1n said:
I need to buy the right display replacement according to the flex cable type. I thought that by providing the P/N, S/N and IMEI (the latter two in censored form, of course) I might provide enough information to deduce the type.
Click to expand...
Click to collapse
I really don't know man... if i were you, i'd go to a local service centre and ask them how to determine which type of cable my phone uses... I know taht's not very helpful but that's all i could think of right now. I'll try to get more details and get back to you if i find something useful.
Sent from my PC without the XDA/Tapatalk app. Ha!!
The first of your tutorials, I believe at 2:30 you can see the flex connectors. So since you have to disassemble your phone anyway when the screen arrives, look at it as training
The question is - ok, you see the flex, how do you know if it's the "narrow" or the "wide" one, these aren't absolute terms. I suggest searching for some reference photos on the internet to be sure.
Jack_R1 said:
The first of your tutorials, I believe at 2:30 you can see the flex connectors. So since you have to disassemble your phone anyway when the screen arrives, look at it as training
The question is - ok, you see the flex, how do you know if it's the "narrow" or the "wide" one, these aren't absolute terms. I suggest searching for some reference photos on the internet to be sure.
Click to expand...
Click to collapse
Thanks, good points
I think I found a pretty good reference (gotta love eBay):
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That's great! Since you'll have to take the phone apart to replace the digitizer anyway, i suggest you do it now, and see what cable you have... and order the appropriate one accordingly.
@t0x1n
This is really a use full information. Please let me know where from u got the narrow flex LCD+digitizer set.... i have broken mine and i need to fix it as well. looking for an early reply ...
somnath.trader said:
@t0x1n
This is really a use full information. Please let me know where from u got the narrow flex LCD+digitizer set.... i have broken mine and i need to fix it as well. looking for an early reply ...
Click to expand...
Click to collapse
@somnath.trader
I think this is the digitizer I bought:
http://www.ebay.com/itm/Replacement...e_Replacement_Parts_Tools&hash=item5d3db9cd39
It didn't work and I had to buy an LCD so I bought this:
http://www.ebay.com/itm/LCD-Screen-...-Desire-S-S510E-G12-Narrow-Flex-/310517355375
Neither worked for me, but it may be my fault for incorrect assembly, or the fault of the lab that tried to fix it.
So there is no way to know if for example my HTC Desire S have a Narrow or a Wide cable?
The only possible way to examine that is to tear the phone apart? ^^
Hmm, then i might need to buy this or something? :
General Cellphone Replacement Repair Open Tools ( +,-,T5,T6,Plastic Tools *2)
So there is no possible way by using the P/N or S/N to know if there is a Wide or Narrow cable?
I own a Droid 4 and recently dropped it, cracked the digitizer, and replaced it. Now my touch screen is only detecting these thin horizontal lines on the upper half of the screen. I'm wondering if it's possible that I screwed up the phone on disassembly/reassembly or if it's more likely that the new digitizer is defective.
Has anyone seen anything like this before?
Thanks,
Alex
P.S. The attachment is a screen shot of my phone running an app which detects points sent by the touch screen/digitizer and records them.
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Bump
Firstly - please don't bump your own threads, and certainly not until at least 24 hours have passed.
Secondly - The reason for you not getting a reply is likely due to the fact that XDA is actually supposed to be a "Development" site, not a "Hardware" site
Thirdly - The likelihood is that you either;-
a) bought a cheap, eBay special digitiser which is not fully compatible
b) didn't get the connections right on install
c) broke something else inside the phone when you dropped it
Start off by taking it all apart again and rebuilding it, if that doesn't work then decide if you want to spend more money buying another digitiser or just ditch the phone and get a new one.
P.S. Why include a pointless poll for this thread?
P.P.S. Not sure why, but you have made two posts and XDA shows you as only making one. Strange.
That is classic yo, made my night. Well I was just checkin in here cause I couldn't find a more appropriate forum. I figured someone might know something, but yeh sorry bout the bumps. Although it did get you to respond, hopefully I didn't break something. I don't think so because everything on the phone works perfectly, I even fixed the little headset speaker. After much arm pulling I finally convinced the company to give me a refund, we'll see if a new one does the trick.
SimonTS said:
Firstly - please don't bump your own threads, and certainly not until at least 24 hours have passed.
Secondly - The reason for you not getting a reply is likely due to the fact that XDA is actually supposed to be a "Development" site, not a "Hardware" site
Thirdly - The likelihood is that you either;-
a) bought a cheap, eBay special digitiser which is not fully compatible
b) didn't get the connections right on install
c) broke something else inside the phone when you dropped it
Start off by taking it all apart again and rebuilding it, if that doesn't work then decide if you want to spend more money buying another digitiser or just ditch the phone and get a new one.
P.S. Why include a pointless poll for this thread?
P.P.S. Not sure why, but you have made two posts and XDA shows you as only making one. Strange.
Click to expand...
Click to collapse
Hi guys,
First post but been reading the forums for a couple of months (excellent source to learn Android).
I bought a Dasaita PX5 headunit and installed it with no issues. Everything was great.
One day on my commute to work I had Waze navigation running and all of a sudden screen went completely blank.
Tried to reset and even though the lights blink in the touch buttons nothing happens.
Discussed with Dasaita support and they sent me a new core board.
I installed the new core board today but unit is still dead. Screen is completely blank.
Any suggestions?
Only had factory stock rom and never tried to flash a custom rom.
I’m desperate here. Bought the unit 8 weeks ago and have had it running for less than a week. Shipping of new core board took ages and I had to pay additional customs fee.
Really hope someone has a good idea
Sounds like the screen conked out. And/or connections between the motherboard and the screen.
What they should have done is sent you a new unit instead of a core board, because that unit ought to be under warranty.
Regardless, did you notice if the connectors going to the screen were loose or ajar? Did you reconnect them?
Did check screen connectors when I changed the core board. Everything was in place.
They now agreed to send me a new unit so now I can just wait. Hopefully the new unit will work with no hiccups.
In my case, The solder of the motherboard was melted and it was short-circuited.
Nothing was displayed on the LCD. I cold only see the touch key backlight.
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This unit was sold by Dasaita (HA), And repaired by cleaning using a solder suction line.
The motherboard looks very ugly, but I only cleaned part B. You better consult a person with expert knowledge before doing it.
warata said:
In my case, The solder of the motherboard was melted and it was short-circuited.
Nothing was displayed on the LCD. I cold only see the touch key backlight.
This unit was sold by Dasaita (HA), And repaired by cleaning using a solder suction line.
The motherboard looks very ugly, but I only cleaned part B. You better consult a person with expert knowledge before doing it.
Click to expand...
Click to collapse
can I know, did you manage to get the unit up after cleaning it? i'm facing the same issue now so i might want to try these fix
izzamk said:
did you manage to get the unit up after cleaning it?
Click to expand...
Click to collapse
Yes I did. But if it fails, your unit will be a complete trash...
Hello friends,
I‘m new here but I have the same problem like the thread starter. Im from germania, so my english is not the best
My story :
Last year in august i ordered my Witson rv5336.
It all worked fine, but this monday nothing worked any more.
The screen is black, no sound no reaction to the touchscreen. Only the keys are lightning. Tried to do a hard reset, only the keys are blinking.
Witson, the manufacturer, said i need a new coreboard. But for me, it sounds like a dead screen?
What do you think?
Greets
Niclas