I am not really sure if this is a SD card slot, because I did not measure 3.3volts at the terminals, also not in recovery (not sure if micro sd card is powered up as soon as the phone is).
Really strange because why have they left it out of the phone?
My Z1 is dead. SoC is dead.. I ordered a "brand new never used before" mainboard with discount so my parts get a second round.. I will try to root that one unlock bootloader and dump sdcard and run photorec to see how truly true that statement of the seller was about being "new". Anyways that's it for now..
Here are some pictures
Most manufacturers design their pcb's for multi purposes. I know it from Nokia, Siemens and also nowadays. You design one pcb for 3 devices and not 3 for each of the them to save design and production costs.
strongst said:
Most manufacturers design their pcb's for multi purposes. I know it from Nokia, Siemens and also nowadays. You design one pcb for 3 devices and not 3 for each of the them to save design and production costs.
Click to expand...
Click to collapse
Makes sense, but why did they not just add sd card support to the phone? Is this to safe cost or to keep the design the way they wanted it?
I think the cost of adding it is so small. Why bother, just mill the frame and solder the socket on. But in this case, pads where not connected so maybe it's sth else.
NiTrOwow said:
Makes sense, but why did they not just add sd card support to the phone? Is this to safe cost or to keep the design they way they wanted it?
I think the cost of adding it is so small. Why bother, just mill the frame and solder the socket on. But in this case, pads where not connected so maybe it's sth else.
Click to expand...
Click to collapse
Pads are not connected cause of my mentioned reasons maybe and yes, Design is one of the possible reasons too!
From design a board to release of the final design for the smartphone there's a huge time that can go past. So they don't design a new pcb if pr says: we don't want a sd card.
They just disable them, cause the smartphone must be released.
Related
Hello,
I've recently acquired a lazer welder that can weld metal-to-metal at a 0.1mm pitch.
What I am trying to do is cut of the old RAM chip and weld on a new higher capacity RAM chip.
Knowing I have the means to adhere a chunk of memory onto the board, does ANYONE out there know if:
1.) It's Possible
2.) If it is possible, is there a none OEM way of buying "1" chip at a reasonable price
3.) Could I buy a PC stick of ram that is of the same charecteristics of the chip used in the wizard to lop off the legs and than weld onto the wizard?
Anyone know where I can find some documentation of what is inside the wizard. Like all of the IC's?
Thanks!
I'm sure i remember a while back someone trying this, but I'm sure they ran into problems with the on board controller that recognises the memory. I'll see if I can find the links and post them here.
supraman said:
Hello,
I've recently acquired a lazer welder that can weld metal-to-metal at a 0.1mm pitch.
What I am trying to do is cut of the old RAM chip and weld on a new higher capacity RAM chip.
Knowing I have the means to adhere a chunk of memory onto the board, does ANYONE out there know if:
1.) It's Possible
2.) If it is possible, is there a none OEM way of buying "1" chip at a reasonable price
3.) Could I buy a PC stick of ram that is of the same charecteristics of the chip used in the wizard to lop off the legs and than weld onto the wizard?
Anyone know where I can find some documentation of what is inside the wizard. Like all of the IC's?
Thanks!
Click to expand...
Click to collapse
I'm almost positive that the RAM in the Wizard is going to be some sort of BGA format. That doesn't lend itself to easy soldering, although it can be done with the right tools. A laser welder isn't the right tool.
The other problem that you'll face is that you would need to purchase memory chips from the same manufacturer, using the same packaging as the original memory so that the ball pitch will be the same and the signal assignments will be the same.
Complicating the issue is the fact that higher density memory chips use more address lines - the Wizard may not have the extra address lines to support more memory. I wouldn't expect the device to have more address lines than necessary simply because of the space requirements. If the target was 64MB of RAM, then the space required for an extra address line to support 128MB could be better used for other motherboard features.
I hate to be such a gloomy gus, but, sadly, the sort of electrical tinkering that we used to do on some of the original PDAs is pretty much a thing of the past due to space constraints and machine assembly optimizations that the manufacturers have implemented.
But, if nothing else, it would be interesting to know just what HTC put in the Wizard!
Hey i think and have hard from some people that Wizard can support 128MB RAM, a frnd of mine was telling me that he has seen some people written on some other forum that the upgrade was a success but a limitation is that Wizard wil not support a RAM greater than 128MB its MAX. If you do try tell us your experience. and DO at your own risk dont blame anyone else if you screw your Wizard. TC
It is possible to upgrade the memory on the wizard, theres a company that will do it for you but its expensive and youd probably be better of buying higher spec model.
I came across a topic a while back that someone had succesfully done it themselfs, but it was very tricky and the right soldering equipment was needed to solder the chip correctly to the board.
hi all,
i am quite seriously considering the 7501 here in the usa, as an upgrade from the hermes, vs the kaiser, or eventual omni.
one large concern is the poss. of the magnet demagnetizing my credit cards.
as i almost had my honeymoon ruined 12 yrs ago in italy when i bought a magnet money clip and put it in the same pocket/area as my wallet, later after my atm card would not work i realized the blunder and have not used it since.
i searched the forums and came up empty.
the question is has any of you advantage users actually had their cards or other magnetic based(hd's) devices demagnetized, and if so can you tell me how exactly it happened in terms of proximity to the cards, length of time in proximity, OR if you have not had any problems and have had the advantage next to your cards/wallet, etc.
i like to use a leather fanny pack when walking/hiking for long distances and keep my wallet, cell phone, dig camera in it together but in diff compartments sep by fabric only.
i would hate to have to think of always keeping my wallet and main device exactly 6.25346???? inches apart to prevent disaster.
secondly maybe you engineers could tell me how to protect the cards in the wallet with a shield of lead( small enough to put in a wallet, of course or other material), or something that would block the magnetization effects.
thanks in advance!!
djsell
has not happen to me.... YET
There are a couple of posts in the Athena forum from members saying that their laptop hard drives have been damaged. Not seen any mention of credit cards though.
I am careful not to get the keyboard of the Athena anywhere near my laptop or wallet, I don't want to be the first to test it...
Haven't you seen Mythbusters?
It isn't possible for any type of commercially-available magnet to wipe a credit card. They tested cards with huge electromagnets and the cards were just fine. It would take at least 1000 gauss to erase a credit card. Most likely the "demagnetized" cards people keep swearing they have are damaged by other means, like scratches on the magnetic stripe. And it wouldn't necessarily have to entirely destroy the data on the stripe; just one well-placed scratch would be enough to destroy just enough data that the reader wouldn't be able to make sense of what it's seeing.
jsp91470 said:
It isn't possible for any type of commercially-available magnet to wipe a credit card. They tested cards with huge electromagnets and the cards were just fine. It would take at least 1000 gauss to erase a credit card. Most likely the "demagnetized" cards people keep swearing they have are damaged by other means, like scratches on the magnetic stripe. And it wouldn't necessarily have to entirely destroy the data on the stripe; just one well-placed scratch would be enough to destroy just enough data that the reader wouldn't be able to make sense of what it's seeing.
Click to expand...
Click to collapse
That said, I believe T-Mobile recommend you keep the Ameo 5cm away from credit cards.
my athena has killed 2 hard drives (both laptop) so it does that, not sure about credit cards...
i just googled "credit cards and magnets" and found serious problems people have said they've encountered with the magnet in the sidekick-3 and losing all data on credit cards, dr. license , and someone tested a card with a 1 second exposure and the card was unrecognizable!!
also the "basics" of credit card magnetic stripes, and they are actual tiny magnets!
not looking good, ...and as this thread plays out some harddrives lost...makes me wonder how the advantages own hd is not affected.
i'll have to read up on "mythbusters", and the myth of these lost hd's and card data...i would love to believe it is a myth!!
the question for me is can i keep the advantage away from my cards and hd's 100% of the time!!!...knowing me, not a chance!!
djsell
The answer is you just need to be a bit careful - don't put the unit or the keyboard on your laptop or wallet. Also, if you are wearing a jacket with your unit in one breast pocket and your wallet in the other and put the jacket down on a flat surface, take one or other out before you do!!!!!
the answer is yes to credit cards in my x7500 manual it says to keep it away from credit cards and mag stripes as it can possibly harm them.
its just a warning not a guarantee just thought id throw this in there
Hi,
I can only speak of my own experience: on two separate occasions my Athena rendered my daily parking ticket (which is made of paper with a thin magnetic stripe) completely unreadable by the automatic cashier mashine.
Once the ticket was put in my bag right on top of the Athena(bad idea...). The other time I had the ticket in my shirt pocket and the Athena in my inside coat pocket, so the two of them were only separated by a few layers of fabric...
Since these two incidents I try to keep my Athena separated from anything electronic and/or magnetic. And if someone came up with a way to remove the magnet I'd be happy to test (I don't use the keyboard anymore).
Regards,
Silviu
The whole magnet keyboard thing is a bad design IMHO. Carrying around magnets with you 24/7 can't be a good thing. I do know people use magnets for therapy.
But for everything else it can just cause a problem. They should have just done away with the keyboard all together or done it the smart way like the Universal. Swivel style.
Sure the Omni might have this design but is the Omni going to have a 5" screen. I bet not.
I remember seeing something about removing the magnet(s) here on XDA-devs. If HTC puts them in, I'm sure some intrepid XDAer has/will take them out...
I've not managed to kill any of my cards (as yet), but now the UK's moved over to Chip and Pin, the stripe barely gets used. No problems with the storecards in their either mind. I quite often carry my wallet atop the closed Ameo. I have managed to knacker one lappy hdd though with my Ameo.
One thing I have noticed is the magnet seems to be quite focused - its grab doesnt seem to emit too far from the bottom of the device. However, the keyboard seems to have far greater radiance than the gadget (from holding them both upto a CRT).
thanks for all the feedback....still undecided on the advantage, i agree that if htc simply used the universals swivel design this would have alleviated a lot of poss problems....no magnet problems, adjustable viewing angles in laptop mode, no losing the kb or keeping track of it, etc., ....well i'll wait a few wks for the poss omni...kaiser still will be with an unprotected screen.
i loved the universal but for me it was quite slow, and the camera was essentially unuseable for my purposes, and important to have in the device.
ces la vie!!
djsell
[email protected] said:
thanks for all the feedback....still undecided on the advantage, i agree that if htc simply used the universals swivel design this would have alleviated a lot of poss problems....no magnet problems, adjustable viewing angles in laptop mode, no losing the kb or keeping track of it, etc., ....well i'll wait a few wks for the poss omni...kaiser still will be with an unprotected screen.
i loved the universal but for me it was quite slow, and the camera was essentially unuseable for my purposes, and important to have in the device.
ces la vie!!
djsell
Click to expand...
Click to collapse
Whoah there!!! Every PDA I've ever had had its drawbacks - each of which you had to find a workaround for. It is true that the magnets require a bit of careful thought but they are the issue you come up with a workaround for. There are other minor issues but generally the Ameo is fantastic - and I defy you to go back to a smaller screen once you've tried it!!!!
I have been able to kill two hotel keycards with my X7500. Another one to be wary about, since you will need to walk back aaaaalllllll the way down to reception...
silviu.h said:
Hi,
I can only speak of my own experience: on two separate occasions my Athena rendered my daily parking ticket (which is made of paper with a thin magnetic stripe) completely unreadable by the automatic cashier mashine.
Regards,
Silviu
Click to expand...
Click to collapse
Me to... thankfully it had my entry time printed on the ticket and so I wasn't charged a full day (it was airport parking too - very pricey).
Most of my credit/debit cards are probably already wiped by my Ameo, not sure, but I've not had a card swip done in ages since chip and pin so I suppose I'll only find out when I go to the one place that still relies on mag-stripe technology.
i agree apd,
my real objective...so i tell myself....is to find that near perfect all in one device to use for the longest poss period of time w/o having to continually switch to another phone and reload all my software and endure the new horrors of active sync, i am a physician that basically has the patience, with tech devices, that is, of a newborn baby looking for a nipple!!...I HAVE NOT MUCH, and i want everything to work fairly well and w/o side effects and time consumption.
i loved my universal ( you're right the vga screen!! ) and stuck with it for about a year, which as you know in gadget years, thats about 80 years!, but i really need a camera for my work, and its is insuff, so i had to carry a 2nd device, a dig camera which defeats the purpose.......anyway i just want to avoid the SERIOUS side effects which could be credit card dysfunction, harddrive loss, etc and certainly could live with the viewing angle, and size , since its evidently not that much larger than the universal.
we'll see...the omni proposes a 4" vga screen, 3mp camera,swivel design (minus magnets), and all the other stuff, minus the 8 gb hd, but with micro sd now coming out with 8 gd memory, thats ok.
maybe in its case i could slip in a material that would block the magnetization??!!
btw, here in the usa everything on cards seems to be magnetized still!!
djsell
Doodle said:
I have been able to kill two hotel keycards with my X7500. Another one to be wary about, since you will need to walk back aaaaalllllll the way down to reception...
Click to expand...
Click to collapse
me two and the first time i only had my pants and socks on went next door to borrow somthing of my work colleage, at least the receptionist found it amusing
Well I was watching Discovery Channel about a yr back. N I remember watching Myth Busters. They did a test about demagnetizing a credit card and the results were if u wanna demagnetize ur credit card...... the amount of energy required would actually destroy the card into pieces first..... I Doubt Athena has the power to do that... =D.....
Cheers
Does anyone know how difficult it would be to swap out the internal 1gb of memory with, say a 16gb from another Galaxy S?
Would it just be a matter disassembly, unsoldering and replacing? How small are the memory traces? Wire count?
Unless you worked for samsung and had access to the chip (then you wouldn't be here asking), You would have to buy another phone and disable it. Hoping that its capatible and having the right tools so you don't mess up the phone.
Not worth it.
Unless you just have the money to blow. I'm guessing the hardware is different in the epic. Footprint and all...
Thanks for your thoughts. This might be a hack a year from now when people are moving on to new phones. I guess I can look at a tear down video of the Epic and compare it to a tear down video of one of its siblings and visually compare the memory chips when both videos are out.
The internal memory is likely soldered to the main board.
Theoretically if you were feeling especially dexterous and were able to desolder the chip and attach a larger one in it's place, you would still likely need some firmware changes to be able t access the larger space. Even then I doubt the memory on the other Galaxy S phones is comprised of a single 16GB chip. It's likely several smaller chips.
tl;dr no
Hi,could anyone with knowledge confirm what component is it?
Uploaded with ImageShack.us
It fall off pcb,and i could not find it
Refreshing post
b.u.m.p #2
how do u know something is missing? maybe there was nothing there to begin with.... does the phone not work when u put it back together?
edit: after searching a bit i found a couple pictures that shows the HD2's motherboard and some show a black component there and some dont. see attached pics. so maybe yours didnt have anything there to begin with. these components are soldiered onto the board, components dont just fall off...
maybe it depends if your phone is a US or EURO model?
rlee
here you can buy a new one
go on cgi.ebay.de and put this following link behind
/Mainboard-Motherboard-For-HTC-hd2-leo-T8585-/260819122167?pt=LH_DefaultDomain_0&hash=item3cba07f7f7[/url]
tamerkilinc said:
here you can buy a new one
go on cgi.ebay.de and put this following link behind
/Mainboard-Motherboard-For-HTC-hd2-leo-T8585-/260819122167?pt=LH_DefaultDomain_0&hash=item3cba07f7f7[/url]
Click to expand...
Click to collapse
does it has to be cgi.ebay.de?or can i use .com? bwwwwahaha,price is awesome
Well,component was stripped with screwdriver,not by me.
Btw,it is US version
Empty places on boards are not unusual. Have a look on your PC's mainboard, I bet you'll find several of them there, too.
The reasons vary. At times it is because some feature originally was planned, but didn't make it into production. Redesigning the board costs much more than simply letting out some parts.
But most of the times it is due to variations of the hardware. Some chips need external parts while other, doing the same job, don't.
When you have to produce millions of a device, you have to consider that occasionally you can't use the exact chip types in all devices and partially have to use other compatible chips. So most boards are designed to cover several variants of equipment - where chip A needs this specific external piece, while chip B, which is soldered to your board, doesn't.
If your phone works flawlessly, then the empty space is ok, no reason to change anything.
If there really has been a chip on the empty place, there are explicit marks on the soldering pads. Are their surfaces clean and shiny? Then there has never been anything soldered to it, otherwise they have a rough surface, clearly showing that something was ripped off. This can happen if the soldering process was bad. But this happens really rarely, especially in upper class smartphones.
(Had this on a PC RAM some years ago, the EEPROM simply fell off the board... and some of the good old Nokia 6210 had problems with bad soldering, but this affected only a few pins of a single chip.)
So if you can post a macro pic of the empty place, I can have a look and tell you if there has been anything on it or not.
justmeandmyphone said:
Empty places on boards are not unusual. Have a look on your PC's mainboard, I bet you'll find several of them there, too.
The reasons vary. At times it is because some feature originally was planned, but didn't make it into production. Redesigning the board costs much more than simply letting out some parts.
But most of the times it is due to variations of the hardware. Some chips need external parts while other, doing the same job, don't.
When you have to produce millions of a device, you have to consider that occasionally you can't use the exact chip types in all devices and partially have to use other compatible chips. So most boards are designed to cover several variants of equipment - where chip A needs this specific external piece, while chip B, which is soldered to your board, doesn't.
If your phone works flawlessly, then the empty space is ok, no reason to change anything.
If there really has been a chip on the empty place, there are explicit marks on the soldering pads. Are their surfaces clean and shiny? Then there has never been anything soldered to it, otherwise they have a rough surface, clearly showing that something was ripped off. This can happen if the soldering process was bad. But this happens really rarely, especially in upper class smartphones.
(Had this on a PC RAM some years ago, the EEPROM simply fell off the board... and some of the good old Nokia 6210 had problems with bad soldering, but this affected only a few pins of a single chip.)
So if you can post a macro pic of the empty place, I can have a look and tell you if there has been anything on it or not.
Click to expand...
Click to collapse
Here,i added best macro i could get
Looks to me as if the pads are virgins, have never seen any solder. So if your phone doesn't have any malfunction, everything should be fine.
This component is smd female plug for led power thanks everyone for comments,maybe someone will have use of this...
Sent from my Milestone using XDA App
Are the PA for HTC Touch HD2 from Avago?
Hi.
I have access to professional BGA rework equipment, so i can remove the Tegra3 and eMMC chip and explore the possibilities of modding in a MicroSD, SPDIF out etc.
I am not willing to do this to my own Nexus 7, so I am seeking a person that would donate his broken one to the project. It will be documented with lots of good pics, and i can check various connections/draw schematics for people that wants this.
It's not important if it's a 8, 16 or 32GB version. Preferable a non-3G since i don't have the baseline schematic for the 3G version.
I can remove BGA chips, figure out what mods are possible, then reball the BGA chips and reattach them.
If i remove the Tegra 3 i can trace where the "Strapping" resistors is located, telling the Tegra 3 to boot from MicroSD instead, and soldering connections from the now removed eMMC footprint to a MicroSD socket. This will bring us the possibility of getting 128GB+ of internal storage.
If it's possible to access the pins that are responsible the SPDIF out, there may be a possibility of enabling this, rending crystal-clear digital sound out of the Nexus 7.
I will look into replacing the internal DAC too, but as i have no datasheets on the DAC, i will need to remove the Tegra3 and trace out the connections.
If you have a Nexus7 with broken screen you are willing to donate to this cause, or know someone who is, please chime in.
Preferably one in Europe, since I am located in Denmark. I hate messing with import taxes ;-/
// Per.
hey
zapro said:
Hi.
I have access to professional BGA rework equipment, so i can remove the Tegra3 and eMMC chip and explore the possibilities of modding in a MicroSD, SPDIF out etc.
I am not willing to do this to my own Nexus 7, so I am seeking a person that would donate his broken one to the project. It will be documented with lots of good pics, and i can check various connections/draw schematics for people that wants this.
It's not important if it's a 8, 16 or 32GB version. Preferable a non-3G since i don't have the baseline schematic for the 3G version.
I can remove BGA chips, figure out what mods are possible, then reball the BGA chips and reattach them.
If i remove the Tegra 3 i can trace where the "Strapping" resistors is located, telling the Tegra 3 to boot from MicroSD instead, and soldering connections from the now removed eMMC footprint to a MicroSD socket. This will bring us the possibility of getting 128GB+ of internal storage.
If it's possible to access the pins that are responsible the SPDIF out, there may be a possibility of enabling this, rending crystal-clear digital sound out of the Nexus 7.
I will look into replacing the internal DAC too, but as i have no datasheets on the DAC, i will need to remove the Tegra3 and trace out the connections.
If you have a Nexus7 with broken screen you are willing to donate to this cause, or know someone who is, please chime in.
Preferably one in Europe, since I am located in Denmark. I hate messing with import taxes ;-/
// Per.
Click to expand...
Click to collapse
Have you gotten around to anything yet? All the things you mentioned sound quite interesting. Too bad i don't have a broken Nexus 7, I would happily donate it to you
ruraj said:
Have you gotten around to anything yet? All the things you mentioned sound quite interesting. Too bad i don't have a broken Nexus 7, I would happily donate it to you
Click to expand...
Click to collapse
No, no one has come up with the offer of a dirt cheap or free Nex7 for Dismantling.
In the meantime i managed to crack the glass on my own just by having it my bag - Asus won't do anything to help me, although there is clearly a construction defect in the mounting of the glass front. Fortunately mine is only cracked at the very end, rendering only a small corner of the touch "dead" - So if anyone has a Nex7 with good glass and otherwise dead electronics, i could be interested in that too.
// Per.