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Hi,
I have a kaiser with either a mainboard/usb fault. HTC wanted £250 to fix, so a repair is out of the question.
If I charge the battery on another Kaiser and stick it in my faulty one then my faulty one works fine for a few hours (it discharges more rapidly than it should - I assume due to the fault, but works for probably 4 hours) there is no way of charging via the faulty phone mini usb connector (it lights up amber but doesn't charge, nor does the USB connection hook onto the computer).
Luckily I had hardspl on the phone from new and can easily update via the uSD card if any need.
My questions are these: How can I hard wire my kaiser to a power supply so that I can leave it on in my car at all times? (it doesn't need to be moved)
The battery is 4.2v, can I hook a 5v supply onto the 2 outer pins?
What are the other 2 pins for?
Do I need to connect the 4 copper pads in the battery compartment together?
Thanks for any help that you guys can give!
http://www.mikechannon.net/page1.html
check out the service manual
Hi,
Thanks for that, I scoured through the service manual but I couldn't find anything about the voltages on the battery compartment terminals and therefore how to hotwire power straight into them, I don't know much about this and didn't want to screw it up worse than it already is by sticking 5volts onto them. Looking at the markings on the battery power to the outer 2 terminals would do it but i'm sure there's more to it than that.
Dan.
Many angles to this.
Battery is 3.7 volts. You'd want to supply that. But there is a battery charging circuit inside the phone. How that will effect things? I don't know.
There is a circuit in the battery that gives you battery % I believe. Unless you feel like reverse engineering that, you're in a tight spot.
I'd say save your cash, and buy a new phone. this probably won't end well.
on second thought. If you're already willing to hardwire contacts, why not just hardwire 5V to the USB pins?
Keep your battery in there and you'll have 5V on the usb port keeping everything happy
Hmmmn, you might be on to something with that, the problem with the phone is that it doesn't charge when hooked up. The power light glows amber but it actually makes the phone DISCHARGE faster than when not connected. Once the battery gets completely drained all I get is a RED led.
When I sent it back to HTC they said water damage right away. I know for a fact that it hadn't been wet in more than 2 months (it did get wet but only a few raindrops, just enough I guess to wet a detector strip) from when this fault occurred so perhaps it's not a mainboard fault and is in fact the USB connector failure another thread is referring to....Hmmmm.
Gonna give it a bit of thought and then either get the soldering iron out or just bang it on ebay for spares. Should think the screen assembly would be worth a fair bit!
Perhaps I misunderstood.
If you're getting the magical amber LED while the USB is plugged in, I'll say you have a good connection. I wouldn't screw with any soldering. It does sound like you have a short somewhere.
I only had my phone drain faster than it could charge when I setup a bittorrent client on my phone. Got warm!
Inspecting the board for damage might be the best choice. I've seen a motherboard on a laptop that went out with visible water damage. I scraped off an area with "ick" on it that was shorting out two contacts.
If you can't solve it that way, I'd try to disable 3G/bluetooth/wifi and see how low you can get your power consumption.
How are you guys recharging your HD2's? I've been relying on the USB connector at the bottom of the phone, but my concern is that after 'x' number of connects/disconnects that the socket will wear out as it started doing with my Kaiser.
Do you guys know of any pin-based adapter or battery hatch modification with external contacts that would enable us to lay the phone on a stand or platform without having to use the internal USB port on the phone which will eventually wear out? The 'powermat' would be great, but it's not available for the HD2. Does the new HTC car mount recharge the phone too, or is it just a bracket?
I'm thinking of something along the lines of how bluetooth headsets recharge, where the pins are external. It just worries me that the micro USB connector will eventually fail, which on a $700+ phone is not an attractive option.
Your thoughts?
The connector will not fail. At least unless you force/damage it yourself. It has been adopted as a connection/charge connector on ALL new phones now, of any brand, so you can bet they tested it thoroughly before.
If it fails.. well that's what the warranty's there for.
To answer the original question, I charge using USB, and also an external charger for my spares.
kilrah said:
The connector will not fail.
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Click to collapse
I understand your point, but to my way of thinking it's still a physical connector made of metal and plastic. It will fail eventually, trust me. These connectors are tested to withstand a reasonable number of connect/disconnect cycles for the average user. But cell phones tend to get used more, and this phone among other cell phones because of the cpu and screen will need to be recharged even more so.
Also, I'm not talking about the point of failure, but the limit of usability. The connector on my Kaiser got to the point where the cable wouldn't stay lodged in the housing and would drop out of its own weight. Although it still worked, it made for awkward handling while in the car trying to use a coiled charging cable that would drop out on its own.
So what I was looking for was a replacement battery hatch which would connect with the internal contacts, and a corresponding mount/dock of some sort so that it would minimize the physical stress of multiple connections and disconnections.
BillTheCat said:
How are you guys recharging your HD2's? I've been relying on the USB connector at the bottom of the phone, but my concern is that after 'x' number of connects/disconnects that the socket will wear out as it started doing with my Kaiser.
Do you guys know of any pin-based adapter or battery hatch modification with external contacts that would enable us to lay the phone on a stand or platform without having to use the internal USB port on the phone which will eventually wear out? The 'powermat' would be great, but it's not available for the HD2. Does the new HTC car mount recharge the phone too, or is it just a bracket?
I'm thinking of something along the lines of how bluetooth headsets recharge, where the pins are external. It just worries me that the micro USB connector will eventually fail, which on a $700+ phone is not an attractive option.
Your thoughts?
Click to expand...
Click to collapse
I just got the car mount today. It Does recharge the phone - there's a mini usb plug built into the bracket, and a lead plugs into the base of the bracket, and then into your 12v socket. A nice touch, the lead is actually long enough to be able to route it nicely.
ebeam said:
I just got the car mount today. It Does recharge the phone - there's a mini usb plug built into the bracket, and a lead plugs into the base of the bracket, and then into your 12v socket. A nice touch, the lead is actually long enough to be able to route it nicely.
Click to expand...
Click to collapse
Thanks, but what I was really after is a solution that does NOT involve the USB port on the phone.
I've seen battery chargers on Ebay. That's probably the only sensible solution if you're really that worried about the USB connector...
I think I remember reading something about some sort of wireless recharging pad that you can put phones and mp3 players on that would recharge them without any cables but I've got no idea if it would work on the HD2 or if they are even on sale yet.
There was old HTC CU S400 car Update Kit. It has direct conection to the battery throug back cover http://www.slashgear.com/htc-hd2-cu-s400-car-kit-gets-priced-detailed-coming-december-1360143/#entrycontent. New mount have MicroUSB connection http://www.clove.co.uk/viewProduct.aspx?product=53E28901-63DD-4E93-99F6-BF3D0B88BD04
lachutm said:
There was old HTC CU S400 car Update Kit. It has direct conection to the battery throug back cover http://www.slashgear.com/htc-hd2-cu-s400-car-kit-gets-priced-detailed-coming-december-1360143/#entrycontent. New mount have MicroUSB connection http://www.clove.co.uk/viewProduct.aspx?product=53E28901-63DD-4E93-99F6-BF3D0B88BD04
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Click to collapse
Yes, the former is along the lines of what I had in mind. Just surprised that no aftermarket solutions have been developed for the phone to make it easier to charge without wearing out that micro-usb connector.
As the mini USB port is a standard size, (not just used by HTC) if you should ever 'break it', most phone repair shops will be able to replace it quite easily.
A lot less hassle than opening up your phone to plug things in the back.
I've tried multiple cables, and my cappy won't charge or sync to my computer. Is there any possible repair or anything I can do besides charging the batteries separately?
You could call samsung, and try to get a replacement.
speedy_11 said:
You could call samsung, and try to get a replacement.
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Click to collapse
I got it off ebay, so I don't think that's an option.
Thnikk said:
I've tried multiple cables, and my cappy won't charge or sync to my computer. Is there any possible repair or anything I can do besides charging the batteries separately?
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Click to collapse
either the usb jack inside ur phone which is attached to the pcb of ur phone is having connectivity issues...
solution- if u r techie..then open the phone...look for connectivity issue around the usb socket and the pcb..and use soldering machine or blower to connect it..
or the fine 4 metal lines..which connects the cable pins to take charge or sync is rusted or having some dust accumulated..
solution - if u can use a very thin pin and try to rub that inner 4 metal connectors of usb socket..that might work..but be very gentle and do it with patience
killer_raj said:
either the usb jack inside ur phone which is attached to the pcb of ur phone is having connectivity issues...
solution- if u r techie..then open the phone...look for connectivity issue around the usb socket and the pcb..and use soldering machine or blower to connect it..
or the fine 4 metal lines..which connects the cable pins to take charge or sync is rusted or having some dust accumulated..
solution - if u can use a very thin pin and try to rub that inner 4 metal connectors of usb socket..that might work..but be very gentle and do it with patience
Click to expand...
Click to collapse
I'll try the second one, but I'm definitely not qualified for the first. If there was someone offering the service pro a price, however, I would be very interested.
Also, my jig gets me into download mode. I don't understand...
The way the phone knows where its connected is setting a preset amount of resistance (301kOhms for download mode) on a specific set of pins. That just means the connection betwen 4th and 5th pin is relayed correctly on your phone.
prbassplayer said:
The way the phone knows where its connected is setting a preset amount of resistance (301kOhms for download mode) on a specific set of pins. That just means the connection betwen 4th and 5th pin is relayed correctly on your phone.
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Click to collapse
I know, but that means the whole thing isn't busted... right? Are the two pins used for a jig unused for charging and syncing?
Thnikk said:
I know, but that means the whole thing isn't busted... right? Are the two pins used for a jig unused for charging and syncing?
Click to expand...
Click to collapse
I don't know. I do know there's a schematic on the resistance combination somewhere around the forums.
Thnikk said:
I'll try the second one, but I'm definitely not qualified for the first. If there was someone offering the service pro a price, however, I would be very interested.
Also, my jig gets me into download mode. I don't understand...
Click to expand...
Click to collapse
I could do both the thing for you for free....because I am capable of doing both...
But sad news..Iam far from you
And yes jig only works on 2 pins...rest of the pins not giving connection..so I repeat..either cleaning those pins..or soldering those pins will solve the problem...and yes you should try cleaning with patience..as I mentioned in my first post
Sent from my captivate using XDA App
Ok folks, buckle up. This is a weird one. So, my phone is in perfect condition, I've never dropped it, it's never been in or near liquid. About four or five days ago, when I was about to plug it in, I received the "moisture detected" message. Well that was impossible, because I had it on my desk the entire time, and there has been no liquid anywhere near it. So I assumed it was a glitch, and plugged it in, only to wake up to a dead phone. I then discovered, that it WILL charge, but only if the USB-C cable is flipped a certain way, which makes no sense to me, given that they are supposed to be reversable. The OTHER insane thing I've discovered, is that it will work BOTH ways, when plugged into a tablet with a USB port. So it seems to only be doing this with wall chargers. Any ideas?
It's very obvious your phone's jack is defective, and probably shorting out causing "moisture detection" errors. Tablet even on USB3.0 mode do not have the same electric potential (aka Volts) as a wall charger. It's usually 5x5V versus 1x120V maximums for wall chargers usually. This makes sense in your situation. The jack is for lack of better words crapping out. Use your warranty rights. Other case scenario (minor chance): your USB-C cable is bad which would explain the reverse issues.
This really isn't that weird in my opinion speaking purely from a Physics level.
Well it has only shown that message once, and not again. I just thought it was odd that it WILL charge with the USB-C inserted one way, but not the other. That's what was throwing me off.
Yeah not that odd assuming the jack is damaged or the cable. As then that can change electric flux around the magnetic field of the connector randomly (not necessarily side-specific). Try another USB-C cable just to rule out the cable and file for a warranty
Th4m4dh4tter said:
Ok folks, buckle up. This is a weird one. So, my phone is in perfect condition, I've never dropped it, it's never been in or near liquid. About four or five days ago, when I was about to plug it in, I received the "moisture detected" message. Well that was impossible, because I had it on my desk the entire time, and there has been no liquid anywhere near it. So I assumed it was a glitch, and plugged it in, only to wake up to a dead phone. I then discovered, that it WILL charge, but only if the USB-C cable is flipped a certain way, which makes no sense to me, given that they are supposed to be reversable. The OTHER insane thing I've discovered, is that it will work BOTH ways, when plugged into a tablet with a USB port. So it seems to only be doing this with wall chargers. Any ideas?
Click to expand...
Click to collapse
I have bad luck with type c plugs noticing the trap much more dirt and pocket junk in them than type bs You might a bright lite and a sewing needle or something and make sure there is no debris in the port and or cable....
I use magnetic cables just to avoid wear and lint or dust in usb port, besides, where I live the ambient is very humid
question.... are you using the original cable that came with the Note 8, if not, try that and see if you still have the problem.
The moisture detected notification could be caused by the cable or it could be a software problem, I had that issue and phone was sent in for warranty to get it fixed.
if you get the moisture error again you can still charge the phone by turning it off and then just as you switch it back on you plug in the charging cable
winol said:
I use magnetic cables just to avoid wear and lint or dust in usb port, besides, where I live the ambient is very humid
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Click to collapse
What adapter do you use? As in what brand magnetic tip sits in the device?
Do you know what to do if the USB cable is fallen into the water?
What if I accidentally dropped the data cable into the water
If this happens, first blow the water with a hairdryer and put it in a dry place for a period of time. Do not charge it with water. It is prone to short circuits and burns out the data cable.
Secondly, it is necessary to see whether the copper on the plug interface is oxidized or not. If yes, you can scrape it with a sharp object to avoid affecting the power supply.
At last, please make a pow-on test, pay attention to whether the cable is overheated or not, if yes, we do recommend to replace the new USB cable.
setuping said:
Do you know what to do if the USB cable is fallen into the water?
What if I accidentally dropped the data cable into the water
If this happens, first blow the water with a hairdryer and put it in a dry place for a period of time. Do not charge it with water. It is prone to short circuits and burns out the data cable.
Secondly, it is necessary to see whether the copper on the plug interface is oxidized or not. If yes, you can scrape it with a sharp object to avoid affecting the power supply.
At last, please make a pow-on test, pay attention to whether the cable is overheated or not, if yes, we do recommend to replace the new USB cable.
Click to expand...
Click to collapse
The VCC and GND are very near each other on a standard USB 3 or 2 cable. If dropped into water with some sort of impurity (and usually it has) the external shell and contacts are prone to oxidation in the form of rust.
With how cheap cables are, the pragmatic solution would be to simply replace the cable.