I've noticed that the connection using the micro usb cable is not snug, if I apply slight leverage to it the charge/connection is lost.
Im a bit dissapointed because I have certainly not pulled on the lead/dropped the device while attached or anything else that might have buggered the plug.
Is there any way I can make the connection snug again, or is this typical for all other devices too.
If this does turn into someting more problematic what are my steps to get it fixed, I brought this phone as an orange locked unwanted upgrade from ebay. fully boxed and sealed. (i.e. new)
Im a bit annoyed because the micro-usb plug is supposed to be more robust than the mini-usb. but to my eyes that not the case, and has proven to be not true either.
I have this issue too. Interested to see if it's a common flaw.
Sent from my HTC Desire using XDA App
Same problem here. Just got it yesterday. The loose connection is very annoying in that you cannot be sure you left in a charging state unless you unlock it and check the screen. I wonder if it supposed to be that way?
After having posted this, I realize that the thread is not for my phone, a Samsung Captivate. I trusted Google search a little too much I guess. Interesting that the problem is the same.
Same here.
Xperia X10 with a loose connection that got much worse with time. I don't expect a fix for a hardware issue, but I am taking it back to the store for a replacement. The problem is that it has gotten so bad that I can't maintain a connection long enough to get my data!! Not pleased
Jamescousins said:
I have this issue too. Interested to see if it's a common flaw.
Sent from my HTC Desire using XDA App
Click to expand...
Click to collapse
me 3. another thread here t=689367 and here t=692242 (wont let me post full url as noob)
May have to return to T-mobile as its really annoying
I have the Captivate, and I had to exchange mine for one that did not do this.
Yep I started getting this problem a few days ago. Pissing me right off.
can someone tell me if the Samsung captivate and Xperia X10 both have micro-B USB ports also ?
Micro USB Sucks
I have the HTC Incredible and whenever its plugged into my PC you can tell by the audibles (and by HTC Sync failing 1/2 the time) that it keeps disconnecting and reconnecting - especially if you lift the phone or move the cable. So I was just as surprised to hear the MicroUSB was supposed to fix some of the wear and tear issues of MiniUSB - which is just untrue!!!
My HD2 has a loose connection
http://app1.appserver.dk:8080/RepairPictures/servlet/getPic?id=51371
<-- This is the chip. And HTC wont repair it. They say it's my own fault? :S
I've got this problem too with my desire and realised it's the cable. I got my desire on the release date (had it preordered) and the plug on the cable is smooth on all sides so it slips in and outu the phone easily. However, my girlfriend got a desire 2 weeks ago, and the micro-USB plug on her cable has two little spring loaded bumps on it, which gives it a positive "click" when it's plugged into the phone and it takes a lot more force to remove it.
Hence I stole her cable
My cappy too
This problem is happening, albeit not as seriously as some of yours, to my cappy now. I have had it for just under a year now. Looking back I could have been a little gentler with it...
Running Teamhacksung's ICS Build 9.
I've got the same issue - turns out that it's the cable more than anything, as when I plug the in-car charger one (a different cable) in, everything worked perfectly.
terrible design
Every device I or my wife has that is micro USB has charging issues. The design in a laboratory is supposed to get 10,000 cycles. But our experience is that a device after 6 months starts to have issues. Finally after a year about every device must be replace as the charging port is so loose that not even the highest quality cables will stay seated well enough to guarantee a charge or data connectivity. Very disappointed that EVERY phone uses this. Well other than Apple, which I may just have to go to since I cannot afford new phones constantly. The wireless companies KNOW it is a flaw in the design of the port also. Not a one of them will warranty the phone if the issue is the charging port. I am talking clean ports here also. No lint or anything.
Down with micro USB
lukester01 said:
Every device I or my wife has that is micro USB has charging issues. The design in a laboratory is supposed to get 10,000 cycles. But our experience is that a device after 6 months starts to have issues. Finally after a year about every device must be replace as the charging port is so loose that not even the highest quality cables will stay seated well enough to guarantee a charge or data connectivity. Very disappointed that EVERY phone uses this. Well other than Apple, which I may just have to go to since I cannot afford new phones constantly. The wireless companies KNOW it is a flaw in the design of the port also. Not a one of them will warranty the phone if the issue is the charging port. I am talking clean ports here also. No lint or anything.
Down with micro USB
Click to expand...
Click to collapse
I agree, micro USB is horribly unreliable across all brands. Too bad I absolutely loathe iOS, because I would consider getting an iPhone if I could run Android on it. Hopefully USB Type-C will be better.
5 data points and a question
First, additioanal data points:
I've had 2 different devices with micro usb connectors and both failed within 3 days of beginning to use them. I can't swear it was the female socket that was damaged but that was my impression. The prongs on the male connector were NOT flattened. I looked for that.
I had another device, a Nook Color I believe it was called, that had a usb charging/data connector that was their own slightly modified design of one of the usb standards. I can't swear whether it was a modified mini or a modified micro but I think it was a modified micro. Anyway the socket was a little deeper than the standard. The idea was that if you plugged in a standard male connector it worked the same way as a standard socket but if you plugged in the longer Nook male connector it went in deeper (I'm straining to refrain from low humor here), additional contacts came into play and it would charge faster. In the Nook case it was definitely the male connector that would break. I replaced the charger twice before the Nook failed for other reasons (I suspect a cat baptised it). If you search the net you'll find a lot of people had the same problem.
So in my case micro-usb is either 2 for 0 if you don't count the Nook, 3 for 0 if you count the Nook once, or maybe 5 for 1 if you count the Nook replacement chargers and charitably assume the last one would have worked for a while if the cat hadn't scented it.
I've NEVER had a problem with large, plain, standard, type A rectangular connectors. I think the idea that the mini is too big is one only Madison Avenue types could come up with. Even the standard type A isn't really too big. After all, how big is a thumb drive? I suspect it has more to do with making it a wee bit cheaper than making it smaller.
So yeah, micro-usb just plain sucks. Assuming Frank's posts in this thread at stack exchange:
electronics.stackexchange dotcom /questions/18552/why-was-mini-usb-deprecated-in-favor-of-micro-usb
aren't fraudulent, Nokia pressured the USB Implementers Forum to accept the micro standard, implicitly against the better judgement of some people involved. I'm therefore inclined to never buy a Nokia anything.
So much for the problem. I'm thinking about workarounds because there is a tablet I'd really like to use that charges through a female micro usb port. If I can't charge the battery it's useless. So I'd appreciate comments regarding the feasbility of these alternatives:
WORKAROUND # 1:
Carefully insert a male-micro-usb-X-female-standard-type-A adaptor into the device and glue them both to a piece of waterproofed luon (very light plywood) and then connect with a cable that has male standard full size rectangular type A connectors at BOTH ends. I've never had any problem with the standard full sized type A and they are easy to replace if I do. Though both adaptors and cables as described, are readily available, it is said that the maleXmale cables can damage equipment in some cases and I'm don't know enough to be sure this is not one of those cases.
WORKAROUND #2:
Alternately I could just glue the micro end of the kind of cable that comes with such devices to the luon and leave the rest of the cable dangling. Downside: Messy dangling cable. Upside: I KNOW it is safe.
Any thoughts on these workarounds would be appreciated.
Ok, I ordered my first useless dock also from NewEgg.com, only to discover that the HDMI output is (as later specified on the website), only a passthrough HDMI and the HDMI adapter is sold separetly!!!. But none the less, I did received my UD and at least I have the 10.1" slider into which the tab can fit. I will connect this to the new 7" True HDMI dock I also ordered. Wasting money??, well, I'll limit my amount of StarBucks coffees and make up for it.
That was besides the point Have anyone every opened the Dock (7" or useless 10.1") too see what is inside? I got as far as removing the four screws from the bottom on my UD (useless dock) and probably need to pray it open a bit. But have not gotten that far yet, before I started typing ('cause I did a search with not any applicable results) - next time someone is going to ***** at me again for 'have you tried search????' - I'm gonna tell them to let the forum know to get a better search engine - one that actually works. - Again, off the topic. (LOL)
My whole idea is the make the "Ultimate Multimedia Dock" (**** Samsung for selling everything separately if they darn well know it could be one device!) I especially need a SD-card reader (since I sit now with two 32GB cards and a 10.1" tab that cannot read them!)
My idea is to add a USB surface mount female plug inside the dock (after I prayed it open, I will get picks and let you know if it will work) - Something like this.
Slimmer if I can get one - still needs to shop around a bit more. If anyone knows of anything slimmer than the above one let me know, please.
But that is not what I need help with so much..... According to this thread, one can create your own USB Host dongle. I want to build that into the dock.
So that means that whatever the connectors are between the two 30-pin connectors of the dock, needs to be intercepted with the USB connector (pins 1,3,4 &6) and the 20K resistor between 13 & 15.
The idea is mainly to have access to the USB female port as a card reader, while the tab is on the dock and maybe while the charger is connected. I am not so much interested to use the USB port while the HDMI is playing (modding the 7" dock). I would hate to send my 50" TV up in smoke - or the tab for that matter, if both devices are both connected and does not like being together......
Anyone have some diagrams or experience to help figure this out - it is highly appreciated.
Thanks guys & gals!
Got some pics to share.....
Useless dock, inside and out........
Guys, Let's take this thing apart and make it better.....
(will upload soon...)
bert269 said:
Useless dock, inside and out........
Guys, Let's take this thing apart and make it better.....
(will upload now - first have to reboot to get my FTP server on my laptop working.....wbrb)
Click to expand...
Click to collapse
Samsung has another new Media dock coming, its not like the one thats currently out which sells for $34.99
The new one is supposed to have HDMI out so you don't need the adapter to use it.
The new dock will run $50 and should be available in the fall along with the new bluetooth keyboard case and some new attachments.
This is what Engadget has to say:
Today's Samsung Galaxy Tab 10.1 event in NYC wasn't just about software -- okay, it was mostly about software, but the company also unveiled a slew of accessories for its slick Android tablet. High atop the list is a number of new docks for the slate, including a $50 Multimedia Dock, which props the device up in landscape mode while charging it and offering HDMI out. The $80 Ultra Productivity Tool, meanwhile, also charges the device and includes a full-sized keyboard with Android shortcut keys. The $150 Premium Protective case turns the Tab into a makeshift notebook with a full-size Bluetooth keyboard and a hinge that lets the user adjust the tab's viewing angle.
A new $40 HDTV adapter gives the tablet full 1080p HDMI output. The company also announced a $40 SD card adapter and a USB adapter for easy accessory input. For $60, Tab owners can pick up the Premium Book Cover, a high end case for the device that lets you prop it up for typing or viewing movies. And somewhere in the distance, you could hear Steve Jobs audibly shudder when the company unveiled a pen stylus for the device. The stylus has an aluminum body and a silicon tip, for when you need to give your fingertips a break. It'll run you $20, and sadly won't include meat.
Engadget sucks with pictures lately, here's a pic of the new dock:
http://www.youtube.com/watch?v=g4avPDtNJ30&feature=player_embedded
New accessories galore!
Including a speaker dock!?
Pictures as promised...of the opened dock....
OK here are some pictures. I'm sure you all know how the media dock looks, So, I'll skip that one.
Here is a picture of the dock opened. See the huge piece of metal to add some weight not to flip over once the tab is inserted. This will probably need to be replaced with something else (lead?) if I am going to use some room of that for the FemaleUSB socket.https://picasaweb.google.com/lh/photo/J7Inf00abt9o0Nf-Gm7gg_Ix_Iq3rFxo94LvnO8xF0c?feat=directlink
Next, a closer look at the bottom of the dock - the part we are actually more interested in, right?https://picasaweb.google.com/lh/photo/CwqnYp8FNvxAY4kue68JU_Ix_Iq3rFxo94LvnO8xF0c?feat=directlink
Now I removed the three black screws that keep the metal weight in place - not hard at all:
https://picasaweb.google.com/lh/photo/8O15xTNYWKv5LgWhSsAnXvIx_Iq3rFxo94LvnO8xF0c?feat=directlink
Ah-ha - this opens up a new dimension to the project. Now we can actually see what we are dealing with.
https://picasaweb.google.com/lh/photo/zXx7uDAbMHMuaFHn1cJ5d_Ix_Iq3rFxo94LvnO8xF0c?feat=directlink
Look at the space at the bottom of the circuit board...hmmmm, I am sure we can fit a 1/4Watt 20k resistor in here (or more if we need to). But let me first remove that circuit board to see what's cook'n down there:
https://picasaweb.google.com/lh/photo/zrInv-Skb5adgNjayj0MZvIx_Iq3rFxo94LvnO8xF0c?feat=directlink
And the circuit board flipped over.....
https://picasaweb.google.com/lh/photo/1LbhnrVErUO7TqINqazybvIx_Iq3rFxo94LvnO8xF0c?feat=directlink
I can't really decide what is better, to solder onto this board or to make the USB Host adapter cable directly onto the 30-pin plug. I already messed up one connector for trying to solder onto those microscopic, tiny pins (and ended up with a piece of solder INSIDE the connector). I almost think here are more work-space on the bottom of this circuit board - for a resistor - or two-
What does the experts think ??
Look at that - my prediction was right. Look at all the space underneath the board:
https://picasaweb.google.com/lh/photo/tsndKQRzvPv2mOjS3dau-vIx_Iq3rFxo94LvnO8xF0c?feat=directlink
OK, so where do we go from here?
NOW I need some experts to tell me the best option to get the USB host adapter connected between the two 30-pin connectors.....
!!!! HELP !!!!
Click to expand...
Click to collapse
Some good news.....surely....
NCX Designs said:
Samsung has another new Media dock coming, its not like the one thats currently out which sells for $34.99
The new one is supposed to have HDMI out so you don't need the adapter to use it.
The new dock will run $50 and should be available in the fall along with the new bluetooth keyboard case and some new attachments.
This is what Engadget has to say:
.....
Engadget sucks with pictures lately, here's a pic of the new dock:
http://www.youtube.com/watch?v=g4avPDtNJ30&feature=player_embedded
New accessories galore!
Including a speaker dock!?
Click to expand...
Click to collapse
...and spending more money while limiting yourself......only one device at a time connected - you cannot add the sd-card adapter AND charge your device at the same time - or watch a movie when the juice is low.....That is why I want to expand the USB Host cable idea a bit further, by getting that into the dock. The dremel tool can do wanders.
But first I need to know what to do, then I can decide where. As you can see from my pictures, there are space in there to park a Ferrari also....LOL
Thanks for this update - appreciated.
bert269 said:
OK here are some pictures. I'm sure you all know how the media dock looks, So, I'll skip that one.
Here is a picture of the dock opened. See the huge piece of metal to add some weight not to flip over once the tab is inserted. This will probably need to be replaced with something else (lead?) if I am going to use some room of that for the FemaleUSB socket.https://picasaweb.google.com/lh/photo/J7Inf00abt9o0Nf-Gm7gg_Ix_Iq3rFxo94LvnO8xF0c?feat=directlink
Next, a closer look at the bottom of the dock - the part we are actually more interested in, right?https://picasaweb.google.com/lh/photo/CwqnYp8FNvxAY4kue68JU_Ix_Iq3rFxo94LvnO8xF0c?feat=directlink
Now I removed the three black screws that keep the metal weight in place - not hard at all:
https://picasaweb.google.com/lh/photo/8O15xTNYWKv5LgWhSsAnXvIx_Iq3rFxo94LvnO8xF0c?feat=directlink
Ah-ha - this opens up a new dimension to the project. Now we can actually see what we are dealing with.
https://picasaweb.google.com/lh/photo/zXx7uDAbMHMuaFHn1cJ5d_Ix_Iq3rFxo94LvnO8xF0c?feat=directlink
Look at the space at the bottom of the circuit board...hmmmm, I am sure we can fit a 1/4Watt 20k resistor in here (or more if we need to). But let me first remove that circuit board to see what's cook'n down there:
https://picasaweb.google.com/lh/photo/zrInv-Skb5adgNjayj0MZvIx_Iq3rFxo94LvnO8xF0c?feat=directlink
And the circuit board flipped over.....
https://picasaweb.google.com/lh/photo/1LbhnrVErUO7TqINqazybvIx_Iq3rFxo94LvnO8xF0c?feat=directlink
I can't really decide what is better, to solder onto this board or to make the USB Host adapter cable directly onto the 30-pin plug. I already messed up one connector for trying to solder onto those microscopic, tiny pins (and ended up with a piece of solder INSIDE the connector). I almost think here are more work-space on the bottom of this circuit board - for a resistor - or two-
What does the experts think ??
Look at that - my prediction was right. Look at all the space underneath the board:
https://picasaweb.google.com/lh/photo/tsndKQRzvPv2mOjS3dau-vIx_Iq3rFxo94LvnO8xF0c?feat=directlink
OK, so where do we go from here?
NOW I need some experts to tell me the best option to get the USB host adapter connected between the two 30-pin connectors.....
Click to expand...
Click to collapse
Based on what you can find in this thread that discusses the creation of a USBhost/USBpower combo from the 30pin male connector you can buy, the MHL pins, which is what transports the HDMI signals, are left unused. The HDMI adapter samsung sells has the MHL chip that decodes to HDMI. I have been unable to find a female 30pin connector, but if you had that, you could pass those pins, probably with a connection to power and ground (from the same pins that are used for USB power, through to the samsung hdmi adapter. This would give you a connector that had the ability to charge, use usbhost, and still pass through HDMI, all at the same time. If I could find that female connector, I would build that in a heartbeat.
The other option you have is to take a razor, or something equally as sharp, and start cutting traces on the board that go to the female port on the back of the useless dock. You could then install the previously mentioned host and charging ports on the dock and solder them to the cut traces inside the dock. Then you would just need the hdmi adapter outside of the dock.
I'm gonna look at your pics again, and then I'll post one other idea I have.
used2hvatreo said:
...I have been unable to find a female 30pin connector, but if you had that, you could pass those pins, probably with a connection to power and ground (from the same pins that are used for USB power, through to the samsung hdmi adapter. This would give you a connector that had the ability to charge, use usbhost, and still pass through HDMI, all at the same time. If I could find that female connector, I would build that in a heartbeat.
Click to expand...
Click to collapse
I contacted Kineteka (who sells the male connector and pin-out connector right now) and here's the reply on the female connector:
Female Galaxy Tab connectors are not available at the moment. When they are we will have them.
Regards,
Mike Eber
www.kineteka.com
800-635-6058
cleblanc92 said:
I contacted Kineteka (who sells the male connector and pin-out connector right now) and here's the reply on the female connector:
Female Galaxy Tab connectors are not available at the moment. When they are we will have them.
Regards,
Mike Eber
www.kineteka.com
800-635-6058
Click to expand...
Click to collapse
thats hilarious, I just called them to ask the same question.
thanks for your valueable feedback
used2hvatreo said:
Based on what you can find in this thread that discusses the creation of a USBhost/USBpower combo from the 30pin male connector you can buy, the MHL pins, which is what transports the HDMI signals, are left unused. The HDMI adapter samsung sells has the MHL chip that decodes to HDMI. I have been unable to find a female 30pin connector, but if you had that, you could pass those pins, probably with a connection to power and ground (from the same pins that are used for USB power, through to the samsung hdmi adapter. This would give you a connector that had the ability to charge, use usbhost, and still pass through HDMI, all at the same time. If I could find that female connector, I would build that in a heartbeat.
The other option you have is to take a razor, or something equally as sharp, and start cutting traces on the board that go to the female port on the back of the useless dock. You could then install the previously mentioned host and charging ports on the dock and solder them to the cut traces inside the dock. Then you would just need the hdmi adapter outside of the dock.
I'm gonna look at your pics again, and then I'll post one other idea I have.
Click to expand...
Click to collapse
I am much more interested in the second option you have mentioned, since I do not care that much about HDMI at this stage. (I have ordered the 7" true HDMI device for this). My main plan is to add the USB Host into the useless dock. Since it looks like there will be more than enough room for the 20K resistor, my concern was if it is going to work, to intercept the signal between the two 30pin adaptes currently in the useless dock, using the plans for the USBHost?
I will see if I can find the time this weekend to work on it.
Again, thank you!
Curious to know what other idea you have too - let me know.
I'm going to follow this. because I had the same thing in mind. I've got 2 of those desktop dochs an the keyboard dock.
If I sucessfully mod one of the desktop docks I would also consider doing the same to the keyboard dock.
so, the 10.1 useless dock is just a pass through on a blank circuit board with breakouts for the power adapter.
you can easily put the usb host port on to this doc. i would probably solder to either of the connectors' mount points.
the hdmi dock and dongle etc use a silicon image chip which you can't get without signing an NDA
semiconductor store
however, there are several generic micro usb to hdmi dongles which were created for the mhl compatible phones. you can rip off the micro usb port and map it to the mhl pinouts on the 30pin connector. you're pushing $20 at that point which is near the best prices of what you can buy the 7" dock for.
This project looks like a great idea, I have just ordered related componenets from Kineteka to build this up my self. I have 2 questions though - can anyone confirm if there is any issue plugging in a USB MicroSD/SD card reader into the USB host?
My intention:
Mod the Dock - USB Host /w Charging Capabilities
1x USB Female Port -
1x SD/MicroSD Card reader
Im aware that having 2x USB reliant ports will require external power onto a USB Hub but to have this functionality would be worth having extra power.
Second question slightly related - Im looking at buying the samsung book cover case for this device - can anyone confirm if it fits within the UD with the cover attached?
Any comments/ideas welcome.
tff2011 said:
This project looks like a great idea, I have just ordered related componenets from Kineteka to build this up my self. I have 2 questions though - can anyone confirm if there is any issue plugging in a USB MicroSD/SD card reader into the USB host?
My intention:
Mod the Dock - USB Host /w Charging Capabilities
1x USB Female Port -
1x SD/MicroSD Card reader
Im aware that having 2x USB reliant ports will require external power onto a USB Hub but to have this functionality would be worth having extra power.
Second question slightly related - Im looking at buying the samsung book cover case for this device - can anyone confirm if it fits within the UD with the cover attached?
Any comments/ideas welcome.
Click to expand...
Click to collapse
Book cover case does not fit the standard dock, I had to chop mine up to make it fit.
bert269 said:
Ok, I ordered my first useless dock also from NewEgg.com, only to discover that the HDMI output is (as later specified on the website), only a passthrough HDMI and the HDMI adapter is sold separetly!!!. But none the less, I did received my UD and at least I have the 10.1" slider into which the tab can fit. I will connect this to the new 7" True HDMI dock I also ordered. Wasting money??, well, I'll limit my amount of StarBucks coffees and make up for it.
That was besides the point Have anyone every opened the Dock (7" or useless 10.1") too see what is inside? I got as far as removing the four screws from the bottom on my UD (useless dock) and probably need to pray it open a bit. But have not gotten that far yet, before I started typing ('cause I did a search with not any applicable results) - next time someone is going to ***** at me again for 'have you tried search????' - I'm gonna tell them to let the forum know to get a better search engine - one that actually works. - Again, off the topic. (LOL)
My whole idea is the make the "Ultimate Multimedia Dock" (**** Samsung for selling everything separately if they darn well know it could be one device!) I especially need a SD-card reader (since I sit now with two 32GB cards and a 10.1" tab that cannot read them!)
My idea is to add a USB surface mount female plug inside the dock (after I prayed it open, I will get picks and let you know if it will work) - Something like this.
Slimmer if I can get one - still needs to shop around a bit more. If anyone knows of anything slimmer than the above one let me know, please.
But that is not what I need help with so much..... According to this thread, one can create your own USB Host dongle. I want to build that into the dock.
So that means that whatever the connectors are between the two 30-pin connectors of the dock, needs to be intercepted with the USB connector (pins 1,3,4 &6) and the 20K resistor between 13 & 15.
The idea is mainly to have access to the USB female port as a card reader, while the tab is on the dock and maybe while the charger is connected. I am not so much interested to use the USB port while the HDMI is playing (modding the 7" dock). I would hate to send my 50" TV up in smoke - or the tab for that matter, if both devices are both connected and does not like being together......
Anyone have some diagrams or experience to help figure this out - it is highly appreciated.
Thanks guys & gals!
Click to expand...
Click to collapse
Interesting. I was just having a conversation in a different thread about this. I'm considering design the HW for this. I'm going to create a block diagram and then a schematic. My thought is exactly what you are saying. Being able to us a USB Hard drive while the device is charging from the wall. I think that will also give you the ability to use a non powered USB hard drive with this as well. I can't say for sure. I still have to look some things up but I think its possible.
Bxsteez said:
Interesting. I was just having a conversation in a different thread about this. I'm considering design the HW for this. I'm going to create a block diagram and then a schematic. My thought is exactly what you are saying. Being able to us a USB Hard drive while the device is charging from the wall. I think that will also give you the ability to use a non powered USB hard drive with this as well. I can't say for sure. I still have to look some things up but I think its possible.
Click to expand...
Click to collapse
You might run into an issue power wise. I have not looked thru the threads in awhile, but my guess would be that the power you need to run the hard drive (amps wise) might be too much and cause the tablet not to charge at regular speed. I can help with a power circuit design if you need any help.
used2hvatreo said:
You might run into an issue power wise. I have not looked thru the threads in awhile, but my guess would be that the power you need to run the hard drive (amps wise) might be too much and cause the tablet not to charge at regular speed. I can help with a power circuit design if you need any help.
Click to expand...
Click to collapse
That is sorta what I thought but i'm not 100% sure of the current output of charger and at the same time I'm thinking a 500mA draw would be like charging the device through any USB port which I agree would be slower but might still be adequate for this use since i'm thinking if you are using this configuration it will be sitting for a while. Maybe if I could even balance the power draw with the power output. Then it wouldn't charge but it would die either. Who knows....
I'm trying to get some information on the signals on the 30pin. I'm not sure if the pin 7 and 8 are inputs for the charging circuit. I might just have to buy a cable and break it down and find out.
Bxsteez said:
That is sorta what I thought but i'm not 100% sure of the current output of charger and at the same time I'm thinking a 500mA draw would be like charging the device through any USB port which I agree would be slower but might still be adequate for this use since i'm thinking if you are using this configuration it will be sitting for a while. Maybe if I could even balance the power draw with the power output. Then it wouldn't charge but it would die either. Who knows....
I'm trying to get some information on the signals on the 30pin. I'm not sure if the pin 7 and 8 are inputs for the charging circuit. I might just have to buy a cable and break it down and find out.
Click to expand...
Click to collapse
Is this information what you are looking for?
I've found this so that pretty much answer my questions. I will get started on a block diagram and schematic. I have to do a little research on the power consumption of USB Hard drives.
---------- Post added at 09:44 AM ---------- Previous post was at 09:44 AM ----------
used2hvatreo said:
Is this information what you are looking for?
Click to expand...
Click to collapse
haha that is hilarious. That is exactly what i was just posting about lol..
Let me know what you think of this.... It is a rough idea of how I think the circuit should work.
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Bxsteez said:
Let me know what you think of this.... It is a rough idea of how I think the circuit should work.
****EDIT***(FIXED ERROR)
Click to expand...
Click to collapse
I didn't completely analyze it, but with a quick look, it looks pretty good.
I don't see any serious circuit issues that could really mess something up. (there could be data connectivity issues, i don't know much about all that)
ATT HTC ONE X . Using the htc charger with the included 4' mini usb cable full charge takes 3hrs. Using a longer non htc cable 10' connected to the same htc charger that time nearly doubles. Does anybody know the cause of this. Does cable length create an issue with charge time.
Samsung short one of the usb pins on the official accessories to make the phone charge at full speed.
Their phones charge slower using other chargers.
Maybe HTC has done the same to this phone.
Sent from my HTC One X using Tapatalk 2
I haven't really taken notice of that
I haven't used the HTC cable yet as I have two cables from my old Sony Ericsson phones and also got a a short Blackberry one at my work.
I thought all phones charge at full speed regardless. I guess cable length may have something to do with it.
is there an app that would measue charging rates
bigdirtyjase said:
I haven't really taken notice of that
I haven't used the HTC cable yet as I have two cables from my old Sony Ericsson phones and also got a a short Blackberry one at my work.
I thought all phones charge at full speed regardless. I guess cable length may have something to do with it.
is there an app that would measue charging rates
Click to expand...
Click to collapse
yes there is one on the market
Charger timer
https://play.google.com/store/apps/details?id=com.vexedbadger.chargertimer
im almost 100% present sure that you use a cheap Chinese cable ....
and that's why you have problems charging, the Chinese cable of 1m that i had experience with have a reallly poor quality and one day i cuted the cable to look whats going on inside, and i discovered a thin , a really thin wire inside , that spouse to transform the info ...
It's true that HTC has a different pinout on their cables.
You can solder a pin to one of the other pins somehow, and the cable will work at full speed.
Gotta run now, no time to seek for proof links. Google please.
the two middle pins need shorting together to turn it into a powered wire rather than a data wire
so you have:
|--| instead of ||||
Thin long wire causes huge voltage drop, so charging speed is slower.
waz000000 said:
the two middle pins need shorting together to turn it into a powered wire rather than a data wire
so you have:
|--| instead of ||||
Click to expand...
Click to collapse
how do you go about doing this. Can I just tear the two middle pins out ?
Hi,
My made-in-china docking station has just arrived, unfortunately its already been broken (quality material of a matchbox :\),
I have plugged in my micro usb into the socket (female micro usb on the dock) and somehow after few tests the female receiver of the dock fell out.. (I guess it wasn't glued strong enough because I haven't use any extra power to push it in)
Any way.. I have opened it up to see whats going on and found this:
http://img841.imageshack.us/img841/9554/a84p.jpg
The small piece on the left is the female micro usb plugger that was attached to the green board but fell off..
This is a sort of explanation:
http://img856.imageshack.us/img856/2971/4wbl.jpg
And thats the part it self:
http://img43.imageshack.us/img43/8735/ew44.jpg
Unfortunately I can't glue it back and definately not weld it on since its too tiny and I don't have proper equipment for that..
But I do want to try to fix it because god damn its 1 day old ! totally brand new!
So I was thinking maybe I should simply tear a cable and plug the + - to the red and black wires at the end of that board..
And so, here comes the question for you expert fellers.
First this is the board:
http://img856.imageshack.us/img856/8915/xo1u.jpg
I have a basic knowledge in electricity but its from engineering study and not from real world, so I don't really know how to read this thing..
Perhaps a better intuition than mines will help too..
Is this board necessary? What does it do? and can't it live with out it?
Why they didn't simply plug the + and - straight to the + - pins of the docking points?
Because thats what I am willing to do but I guess that "Ask the experts before you ruin it" is a helpful tip my mom taught me..
Thanks!
Jordan.
I'm curious about this too. I'm in the same boat as you: basic knowledge but not too much real world experience. So, I can't tell you what the board does, but maybe we can figure some things out and perhaps someone with more knowledge will chime in eventually.
I can at least answer (I think) why you don't just have a red and black wire going to the point where the phone docks: you have data too (assuming the dock does data as well as charge). Those are the green and white wires in USB.
Well actually I have already figured out out..
First of all there is no data..
You can't minimize 4 cables to 2, its not possible in any way..
Those two pins are for charge only..
The board is for security defense, if you plug into it something with high voltage, it shuts it down or something.. Or transfor only the needed voltage and ampher (5v and 1A for me)..
Any way I cutted out that board and opened up a micro usb cable on the microusb side, attatched the red (+) to the dock's red and the brown (could also be white blue or somwthing, check it out to be sure) to the dock's white (-), closed every thing nice and tight, plugged the usb to charger with 1 ampher output, and it worked..
My phone is getting charged nicely and showing up Docking signal as well..
I'm not sure what exactly this board does and if its useless or not, but it sure ain't must..
Good luck!
Sent from my C6603 using xda premium
Makes sense. I kind of expected there to be no data (hence why I made the comment about it ) Glad you figured it out!