Open head unit - MTCB Android Head Units Q&A

Hi. My unit buttons doesn't work.
Erisin say me:
for button problem, please try to open the unit, check the ribbon cable which connect the mainboard and the button panel, sometimes it is the cable loose, pull out and insert again.
hope this can help you
Which is the ribbon cable?
Inviato dal mio SM-G935F utilizzando Tapatalk

You will have to open
Depending on what you have there are 3 or 4 screws at the top, then you will have to lift the DVD section, and on the motherboard there are a couple of connectors where the screen is attached with a ribbon cable
Its just a case of checking they are properly connected - sometimes you need to disconnect them, then reconnect them
There are a couple of videos on how to dissasemble the units on you tube
Should be simple enough

i tried and the cable are ok and the button still don't work.
now erisin call me 40$ for a new front panel, but my unit is under warranty!! or send the unit to us but maybe i will see it after many months and i have to pay the delivery.
maybe i can try the new panel but i'm not sure it will solve the problem.
in your opinion?

In my opinion, if you bought this unit from them and is faulty, they have to replace it
However, is not clear who should pay the transport costs, again should be the seller
You shouldn't need to buy something to "try and fix" the unit
Try to get some agreement, if is in china, they will probably don't want it returned as they will have to pay the transport twice, so they will loose all the profits of the sell

Bad service!
I ask them to replace my unit with new model paying difference.
My model price is 243€ and then say 183€!
Guys not buy to erisin!
Inviato dal mio SM-G935F utilizzando Tapatalk

Related

WARNING: Do not break your Sync-Connector

:shock:
The connector for active-sync of the XDA is very badly constructed.
Until I got my new XDA2, I had a XDA1. I had it exchanged (warranty) against the XDA2
after some discussion with o2 about bad quality ot the xda1 (I had it 3 times repaired, but it broke soon again. Last problem: the connector for syncing broke 3 days after I got the replacement xda.)
The problem seems to be the smal plastic lid that holds the contacts:
While the plug resting on the plastic lid and the metal frame not supporting the plug suffiiciently because of a quite big gap between them, the lid could easily break if force
is applied up- or downward.
This way my last replacement XDA1 deterioated.
(Un-)Fortunately, the active-sync+charge cable (non O2-accessory) I had for XDA1 my seems to be pin compatible (syncing works).
So the plug is the same, and one should be VERY careful with it.
->Also the original charging adapter is constructed in a way to send bending forces to
the small plastic lid of the inner connector (good to know for warranty discussions).
I actually think of a plug-adaptor, that interfaces between the original plug and the outer
world. It cold be supported via a steelframe that one integrates into the original wallet.
Ideas are welcome!
Summary for the lazy:
---------------
! The Active-Sync-Plug is *badly* constructed.
- The inner plastic lid holding the connectors BREAKS easily.
---------------------------------------
!! So beware of cables attached to the sync connector. !!
---------------------------------------
Use only the craddle that applies forces only to the case of the XDA
:!:
May I add on top of this ... it happened to me and the USB connector is broken. The bad news is: there is NO way yo fix it and as it's integrated with the main board (the power pin) the only option is to replace the main board :x :evil:
Guys, be more than just careful with your devices on that point.
Biso007 said:
May I add on top of this ... it happened to me and the USB connector is broken. The bad news is: there is NO way yo fix it and as it's integrated with the main board (the power pin) the only option is to replace the main board :x :evil:
Guys, be more than just careful with your devices on that point.
Click to expand...
Click to collapse
This is not necessarily true. We have the sync and audiojack connectors in stock and can replace them. They are a pain, but doable.
May be you are right, but it's the case with my device. They said the connection point with the power track (pin) is lost, so the main board has to be replaced. Or maybe they are not equipped the same way you have at USA, and the shipping cost makes it more expensive
In Australia the O2 service Centre will charge you for a compleate replacment main board, they say they can't fix the connector and because the phone was out of warranty they simply charge for a compleatly new board :x SHARKS!
XDA Connector repairs avaliable here
Hi Guys,
I used a company in the UK to repair by busted XDA 2. The damn connector fell out when using an aftermarket in car charger. Got his company to repair it. Were pretty good. their web site adress is www.apexlaptops.co.uk
I was pleased wit the service. Hope they can help you like they helped me!
Good luck guys.
Pocket PC Techs ROCK
I had my unit connected to a cable and landed on the floor - connector first. OUCH. The female connector on the bottom of the unit was loose - and the unit became useless (connections no longer worked). I sent it to Pocket PC Techs, and they fixed and returned it all within a week, and for a very reasonable fee as well. Try them. It'll probably work. Just be gentle with it when it's plugged in.
p n
Re: SYNC CONNECTOR REPAIRS
brentwebster said:
Hi guys. Just to let you all know that i do repairs on sync connectors if anyone has got a broken one. The repairs are done same day sevice, so the day i recieve the phone i repair it and send it back out to you the same day. Th cost of this repair is £40-00. My contact detials are [email protected]. Email me for further details
Click to expand...
Click to collapse
Hi Guys, just to let you know that brentwebster has used the picture from my auction and I sell the connectors for £10 on ebay, if you are fairly good with a soldering iron you can do it yourself - I'll give a discount and free postage in the UK to members of XDA-developers who mail me before buying for details
Richard / fluffcat1
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=9707299579
o p
Re: SYNC CONNECTOR REPAIRS
brentwebster said:
I can supply these connectors at £8 to anyone that wants them. :wink:
Click to expand...
Click to collapse
PM me for a better price :twisted:
Richard
Re: SYNC CONNECTOR REPAIRS
Another person offering this service to those who can't do it themselves:
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=9704914642
£39.99 plus return postage, paypal accepted, 647 feedback rating ( 1000 under mne but there we go ) , no affiliation blah blah blah. Maybe brentwebster can start a price war with them as well?....
Richard
Broken SYNC Connector on my XDA IIi
Can anyone repair this????
If they can please email me with details (address, cost etc)
My email is [email protected]
Thankx
I have one with the connector completely off. Rather soldering a new one on, I was thinking of hard wiring a usb lead on, to fit my arkon gps receiver. Does anyone know the pin outs. I only need data in/out, ground and vcc

Screen conector broken

hi guy's, i have been up tring to change the cover on my mini and it seems i have broken the end off the ribbon cable (dam it) is there anything i can do to repair it or is a new screen needed?? if so does anyone know where to get a cheap screen???
thanks in advance
i damaged my ribbon connector that's connected to the main board (the one with the clip lock) on my mini too
It sucks hey? the clip lock's all i need thats the thing that broke, the cable seems in good shape. any ideas??
no ideas. i asked our service center here but they dont sell spare parts. they said i have to buy the whole board. Now im looking for any MINI that's not working and maybe i can get it at a bargain price.
I think i might just by an atom unless you know of any other wicked phones comming out soon??

T7373 Flex Cable

Hi,
I was replacing the LCD in my Rhodium yesturday and stupidly managed to break one of the tiny LED's next to the speaker away from the
T-shaped Flex cable that connects to the keyboard, screen, main board etc.
I am having a very hard time finding the right cable as some appear to not have the small front camera socket on them.
I did put a bid in on one from hong kong on ebay that looks like it could be the one, but the seller doesn't understand what i'm going on about in regards to the front camera.
Does anyone know where i could possibly get one? Or if HTC themselves could supply it?
Thanks,
Karl
Anyone have an idea?
flex cable
you can try on EBAY online shopping, u will get there

Flex Cable change gives errors PLEASE HELP

Hi dear developers!
I got a Touch Pro 2 from a friend, it's a GSM device he bought in Germany (O2). I changed a few parts but messed the main flex cable. The part from the power button is not connected anymore, a clean cut through, no repairs possible as far i think. So i bought a new one over ebay from Hong Kong. The seller told me it's for a GSM device BUT the cables do not look the same. The production date is 2008 and the damaged one was produced 2009. I built everything together and now the big surprise:
Phone boots normally but when the Home screen appears, it is always in landscape mode. No matter if the phone is closed or the keyboard open. I can only change the screen over advanced tools, but after soft reset again only landscape mode. The buttons for calling also do not work (those two down on the screen when you want to call someone or end a call ---> no reaction).
A hard reset and new ROM (energy) didn't change anything. By the way, the keyboard only fires up after pressing a button. Before it automatically lightened up after sliding.
What the hell is wrong now, did the send me a CDMA cable? Where is the difference ? Please help me i do not want to spent another 30 bucks again for a proper flex cable.
Edit: I disassembled the phone again and took a closer look on the flex cable: the lower part (with the LCD connection etc) looks quite same except for 3 or 4 transistors and their position on the PCB. The upper part with the earpice looks way different. The positioning of the single parts is not the same. But how can that interfere ? Guess there is no problem with the mainboard or the LCD (which is brand new).
Here are some pictures
h**p//img28.imageshack.us/img28/1514/image2sh
h**p://img849.imageshack.us/img849/8167/img1609m.jpg
OK, i solved the problem. The guy who sold the flex cable sent me a older one as I described. This thing was fully responsible for the errors. Bought a new one and everything works fine now^^ So if you ever want to change your Flex cable take good care which one you buy (especially on ebay!)
Btw: The display and the digitizer are glued and IF you want to replace any of those two, do yourself the favor and buy the complete bundle !!! I made the mistake and tried to replace the digitizer and cracked the display. There is no way as far as I can say, that you can manage this.
Bye
Can u post the seller info? Im in the same situation w a different phone... Thanks

[Q] Problem changing digitizer

Hi there.I don´t know if this post goes here.Sorry if it doesn´t.I didn´t know where to put it
I was changing the digitizer on my Desire HD and I realize that that I broke the ribbon on the picture.Can anyone help me about what to do?Thanks in advance.
Sadly been there and done that....Only 1 solution-buy another. This process is next to impossible without lots of experience-parts are very fragile! Your best bet is to buy an entire assembly with the digitizer and lcd already attached. Much much easier, but not easy by any means still. Good luck.
rootntootn said:
Sadly been there and done that....Only 1 solution-buy another. This process is next to impossible without lots of experience-parts are very fragile! Your best bet is to buy an entire assembly with the digitizer and lcd already attached. Much much easier, but not easy by any means still. Good luck.
Click to expand...
Click to collapse
Thanks.I´ll do that.
you can fix that.
google ribbon cable fix and follow the procedure
(can't post direct link)
btw.
this you can't fix because the lines are simply too small
(I'm waiting for new LCD)
yamFZ6 said:
you can fix that.
google ribbon cable fix and follow the procedure
(can't post direct link)
btw.
this you can't fix because the lines are simply too small
(I'm waiting for new LCD)
Click to expand...
Click to collapse
A bit complicated for me.I will buy another lcd.Thanks anyway.
Hi again.I change the screen but now the wifi won´t work.I can´t activate the wifi.It says error.It´s like i don´t have a wifi antenna.Any help?
wifi antenna
I think your problem is bigger than an antenna. The antenna is the same one as the gps antenna and is fitted in the panel around the flash leds. If you were to enable the wifi and just could not pick up any access points, then I would say it was your antenna, but if you are receiving an error, it is more likely that either the wifi module is damaged or somehow disconnected.
Do the rest of the radio parts work? i.e. GPS, Cell, bluetooth? Can you tell me exactly what the error is that you are receiving?
Tamagotono
tamagotono said:
I think your problem is bigger than an antenna. The antenna is the same one as the gps antenna and is fitted in the panel around the flash leds. If you were to enable the wifi and just could not pick up any access points, then I would say it was your antenna, but if you are receiving an error, it is more likely that either the wifi module is damaged or somehow disconnected.
Do the rest of the radio parts work? i.e. GPS, Cell, bluetooth? Can you tell me exactly what the error is that you are receiving?
Tamagotono
Click to expand...
Click to collapse
The cell,3g and gps are working fine.Bluetooh and wifi aren´t.When I activate the wifi I get an error message(it just shows "error").When I try to activate the bluetooth it just does nothing.
Thank you
bcm5 said:
The cell,3g and gps are working fine.Bluetooh and wifi aren´t.When I activate the wifi I get an error message(it just shows "error").When I try to activate the bluetooth it just does nothing.
Thank you
Click to expand...
Click to collapse
did you check flex ribbon connection and rips on flex.
(also check volume buttons)
yamFZ6 said:
did you check flex ribbon connection and rips on flex.
(also check volume buttons)
Click to expand...
Click to collapse
You are right.The volume button are not working!I didn´t try them before.What does it have to do with the wifi?I will open it again.
bcm5 said:
You are right.The volume button are not working!I didn´t try them before.What does it have to do with the wifi?I will open it again.
Click to expand...
Click to collapse
not much, but it is simple test for the flex ribbon.
open the phone and check the flex connection too motherboard
worst possible thing is that you ripped the flex ribbon during removal from middle chassis
2 areas worth checking-the reciever jack at the top of the phone CAN be put on in the wrong direction-red wire should be towards the top of the phone, black towards the bottom. The long, all black wire running by the camera is the bluetooth coaxial cable and maybe not on its connector properly-kind of pops on when right-check both ends. It also could be damaged/pinched running up through the phone. It could also just be a bad component on the upper board and that whole board needs replacing-a pain after what you've done already.
bluetooth/wifi and volume buttons not working
I think yamFZ6 is right. You likely have a cable not fully seated or a damaged cable. Both the Bluetooth and wifi are on the same chip so it makes sense that both of them would fail together, the volume buttons are a separate module, so they are likely all on a single cable that has issues.
One last thing to try before tearing it apart again, do a full wipe and see if it works properly. This is a long shot, but worth checking and can help with troubleshooting if you cannot find any cable issues.
Good luck,
Let us know what you find.
Tamagotono
Hi.Sorry for the delay.Been busy with work.I took some pictures of the phone.I don´t know if they will help.
http://img31.imageshack.us/img31/4475/dscf1491c.jpg
http://img837.imageshack.us/img837/4964/dscf1487b.jpg
http://imageshack.us/photo/my-images/163/dscf1488a.jpg/
http://img818.imageshack.us/img818/9624/dscf1483n.jpg
Looks like the black wire (blue tooth coaxial) near the camera is in toward the battery area too far...battery would be pushing in on it every time and could have broken it...admit that's a long shot...but. Starting to feel like a new "upper" circuit board is in order...hope this helps
rootntootn said:
Looks like the black wire (blue tooth coaxial) near the camera is in toward the battery area too far...battery would be pushing in on it every time and could have broken it...admit that's a long shot...but. Starting to feel like a new "upper" circuit board is in order...hope this helps
Click to expand...
Click to collapse
Do you know where to buy it?
I have seen it for sale somewhere out there but can't find out where that was now. I would look for a "parts" phone on ebay. usually you get more than a fair amount of usable other parts with it. I just did this for that exact issue plus I needed a 'mid frame'. I got just about everything else with it also as the lower, main board was the problem with that particular phone, Got a usable digitizer, lcd, case, extra wires, camera etc etc all for around $60. You also get the added luxury of more practice/expertise with assembly.
bcm5 said:
Do you know where to buy it?
Click to expand...
Click to collapse
ebay $38 free shipping
yamFZ6 said:
ebay $38 free shipping
Click to expand...
Click to collapse
Can you pass the link?Thank you.
bcm5 said:
Can you pass the link?Thank you.
Click to expand...
Click to collapse
http://www.ebay.com/itm/Original-Fl...782?pt=LH_DefaultDomain_0&hash=item3f149ef696

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