I bought a Note on eBay with some water damage with the hope of fixing it. Works perfect except no signal. Found this:
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I've replaced this with a new board. Luckily it only cost $9 on eBay.
Still no signal, so look further under microscope at work. Find a capacitor blown/missing from the board (C240):
(Click for full size)
It's not listed in the component parts list from the service manual. On the board layout it's highlighted green but I can't find what this indicates.
Does anyone know how else I might be able to find out this value?
I'll be lucky if it's only the cap that's damaged and not any chips hanging of that circuit but it's worth a try.
On second thoughts, green may indicate an optional component. Some other components marked green are missing from my board.
Back to the drawing board
It recognises my SIM card but I just get no service.
Service Manual troubleshooting points to U300, the main baseband chip, which would make sense. Unfortunately it looks to be a BGA so not easily removable.
A long shot, but if anyone has any thoughts they would be much appreciated.
Did you ever fix the phone? I have similar issues with water damaged gt-n7000. No signal but recognises the sim card and baseband processor (u300). Also the rf path looks good all the way to the antenna etc...
Nah, sorry. I ended up selling it as it appeared to have more serious damage, likely an IC on the mainboard.
Related
My less than 4 month old unit experienced the white screen syndrome (blank white screen with some occasional orange lines)
the unit has been opened by a technician and he is pointing the problem to FLEX cable but they dont have much experience repairing HTCs, only NOKIAs.
Biggest problem is the flex cable cost like US$100-150 on ebay now.. after reading thru XDA-Devs, i noticed some indication of LCD problems..
can anyone give me insight if this is more of a LCD problem or FLEX problem.. some symtoms includes:
GREEN ON light on top is active, but CALL D Pad and HANG UP buttons are not lighting up and fuctioning.. the unit still starts Windows Mobile and still beeps and buzzs without any problems..
Heres the photo of the unit.. Any insights would be greatly appreciated.. thanks!
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There are existing threads on this, here for example:
http://forum.xda-developers.com/showthread.php?t=303872
Very briefly on this complex issue:
1
Not likely to be the LCD
2
Could be the flex cable between screen and D-Pad
3
Can be the actual connector not seated well at the D-Pad. It has two screws (tiny) and MUST be seated absolutely flat and must be neither loose nor over tightened.
4
It can also be components on the D/Pad board that are faulty
5
Recent reports also suggest that in some cases it may be faulty capacitors on M/Board.
So NOT an easy one to track down.
Closing this thread as threads exist - but don't expect a definitive answer - some suggestions here and there MIGHT work for you.
Mike
Hi all,
Last night the ribbon connecting the LCD to the mainboard snapped. I was wondering if anyone knows a cheap parts supplier who is either in or would ship to the UK, or better still someone who has a Hermes for spares who would send a flex cable my way.
From what I gather repairing my current one is out of the question.
I've seen this on ebay: http://tinyurl.com/ebayhermes
I assume this would do the job for me? I have a HERM100 (Orange SPV M3100)
After fixing the white screen issue upteen times I feel confident enough stripping the Hermes down to do the repair, if it's viable to do so.
Any help would be greatly appreciated!
Thanks!
Edit: Ok, so from a little looking around it seems I have to choose from one of 2 connectors, black or gold. I see very little difference between the two.
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My LCD connector looks more like the 'black' one, though they are very similar. My flex cable is broze/golden coloured. Is there something really significant I can use to confirm 100% which mine is? Mine is 'Toppoly' tagged at the top, if that matters.
Just to add - I remembered I have a Wizard (I-mate K-JAM) knocking about at the bottom of a drawer somewhere. I found an ebay auction for flex cables for the Hermes that also lists it as Wizard compatible. So would the flex from my Wizard possibly be compatible with my Hermes?
Does the same 'black or gold' rule apply?
If so I'll have to trash the room later to find the old Wizard!
If you look at the large chip board on there you will notice yours will match one of the layouts the componats on them are layed out difrentley that should let you know which is yours.
A'ight, so i opened my good old' Prophet today.
I am 50% sure that the battery thing thangy on the motherboard (see pic) is broken.
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However, it might also be the battery, i have two batteries, one is the one that came with the Prophet and one is a cheap battery i ordered from Dealextreme.
I do know that the cheap battery is dead, but the other one (I did some testing with it, it shows up at 1.4V at my multimeter) i'm not sure if it is dead.
The phone has been like this before:
It randomly worked, randomly turned off, it wouldn't work for like 10 days, then when i put the battery in again it worked.
It kept doing that until it died completely.
Any suggestions?
I can't understand on photo. A battery pin is broken? If the problem is broken pin, a watchseller or jeweler can fix it. They have the right equipment to work with small things
zephyri-xr said:
I can't understand on photo. A battery pin is broken? If the problem is broken pin, a watchseller or jeweler can fix it. They have the right equipment to work with small things
Click to expand...
Click to collapse
You think they will fix this?
I would try to get a new (third) cheap battery.
Or try to re-animate the cheap one (dangerous, forbidden, but works often for me: open battery casing, unsolder LiIon-Cell, reload with Lab power supply to around 3-3.8 V (never > 4.2V!!!!), resolder, put in Prophete, start charging....)
The pins look ok. 1.4V for LiIon is below the deadly shutdown value!
TS
OK, maybe my answer is a bit late...
Hi everyone,
I made an account just to get some advice on this issue, hopefully someone can help me out.
I've been using my Galaxy S4 (I9505 - Verizon) since its release and I've had few problems with it up until now. about 2 months ago, the range at which my phone can connect to wifi and bluetooth severely decreased. It seemed to have happened out of nowhere, there was no inciting incident. I have to stand within about 1-2ft of a router in order to catch a signal from it. When I do that everything works just fine, but the second i move even a step further away the connection completely drops off.
There isn't much documentation for this specific issue online, although the S4 is known to have some common wifi problems.
I've determined that it is likely a failed Wifi/Bluetooth IC module on my motherboard. Repair shops are asking for way too much money to fix this, so I'm going to try to fix it myself. I'm a fairly advanced user and feel comfortable doing it on my own. I just wanted some advice on the procedure of removing and replacing an IC module and what tools are needed to do so.
I am going to order this Wifi/Bluetooth IC from ebay:
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What else will I need to get it attached? Will I need a real soldering torch? Or will a hair dryer be powerful enough to heat it?
Thanks in advance for the help!
I don't think hair dryers are enough.
Besides, a hair dryer can't focus the beam, so you might end up loosening the solder on some other parts as well, which may lead to other problems.
But I don't have any experience with soldering or opening up phones, so what do I know?
But you could always check YouTube.
Hello Everyone,
So, I've bought a new logic board for my XT1563.
But, I think I forgot to attach some component, I see the screen lightning, the computer recognizes the phone, but I can't see anything.
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The only missing part is the one that I've a red rectangle marked on the picture. I can't figure out how to remove this component from the old board and how put it on the new board. Someone knows how? Is this the cause for the display do not shows anything?
Thanks in advance and sorry for the bad english
Speaker? If similar to the Pure/Style, I think it just lifts out and is held in with some adhesive?
All ribbon cables properly seated to the display?
s
quakeaz said:
Speaker? If similar to the Pure/Style, I think it just lifts out and is held in with some adhesive?
All ribbon cables properly seated to the display?
Click to expand...
Click to collapse
Yes! It's the speaker sticked with glue. I heated a little bit and sucesefull removed it from the board.
So, that's not the cause from the display not working properly. The board is damaged and I asked for refund.
Thanks!
I need to buy it!
fiendaju said:
s
Yes! It's the speaker sticked with glue. I heated a little bit and sucesefull removed it from the board.
So, that's not the cause from the display not working properly. The board is damaged and I asked for refund.
Thanks!
Click to expand...
Click to collapse
Fiendaju, can you help me with one issue? Where did you bought this Logic Board (site)?
where you bought your board I need one too, and it's 32GB?