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After 2-3 weeks of storing two of my credit cards in my Diamond leather case they have become less readable at the cashier.
A coincidence or can credit cards be affected by being stored too closed to the Diamond. Can a small magnetic pad in the case, which keeps it closed, make cards unreadable?
magnets + electronic devices/items = no.
Why then do a vast number of leather cases have magnets??
This is the one I'm using: http://www.amazon.com/DLO-HipCase-Leather-Folio-touch/dp/B000WOIFO2
(DLO for iPod Touch (it fits)).
Aren't these things tested??
if mobile phone cases use magnets then im sure they would create it in a way that it will not affect the device itself. same for the diamond. Stylus magnet does not affect the device. BUT when you start adding crap that doesnt belong there you will get problems.
The magnetic strip is not used any more. All readers read the chip on the front and in no way can the Diamond affect this.
The case has a credit card slot, so the manufacturer probably expects a credit card to be put in there someday.
I am just wondering whether the combination of a case magnet alongside the heat from the Diamond (I often cycle with it in the case with GPS on) might affect the credit card.
steveianson said:
The magnetic strip is not used any more. All readers read the chip on the front and in no way can the Diamond affect this.
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Click to collapse
Hmm, the strip is used here mostly (netherlands).
I thought this was an urban myth.
We have a magnet on the side of the phone.
And various puches and wallets carry magnets.
Dont know im
Greetings
The main problem is the electromagnetic filed created by the GSM part of the phone. It's simple : do not store a GSM with a credit card or other things that use magnetic fields.
steveianson said:
The magnetic strip is not used any more. All readers read the chip on the front and in no way can the Diamond affect this.
Click to expand...
Click to collapse
Not on my card, still uses the magnetic info.
lpaso said:
The main problem is the electromagnetic filed created by the GSM part of the phone. It's simple : do not store a GSM with a credit card or other things that use magnetic fields.
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Click to collapse
25 points! this is the correct answer. not the tinny magnet for the stylus, not the weak magnet of the case.....the very strong and harmful (even for yr health) electromagnetic radiation generated and received by yr phone even when you are not in a call. try not to use yr phone when in an elevator, car (without antenna) or any confined or open space with bad reception.
bad reception=high level of electromagnetic radiation.
an interesting fact: the only mobile phone that was designed to lower the quantity of electromagnetic radiation we absorb (very bad for our health) was Motorola V3. why? because its antenna was in the lower part (your chin) and not on the upper part (yr ear and brain).
if you put the a phone next to a speaker and call the phone you can make the speaker go nuts with the magnetic field generated by the phone, so wouldnt supprise me if can screw up a credit card being so close to the phone.
But i do remember a mythbuster episode on wiping a credit card with magnets can be done with rare earth magnets maybe they should try again with a mobile.
This is a copy-paste from page 12 of the manual PDF:
"
Please avoid putting any media that contains magnets,
e.g. magnetic card, credit cards, bank cards, audio/
video tape or magnetic memory devices, directly on
the device or stylus without any distance.
It is highly recommended to put the media containing
magnets in a security distance of at least 5 cm. If you
carry your wallet or billfold which contains magnetic
cards next to the device or its stylus, information
stored on these cards could be destroyed.
Please make sure that there is an adequate distance between
the device or its stylus and other magnetic sensitive devices,
e.g., a mechanical watch or measure instruments.
"
In Gothenburg some of the cards that you use for the public transport system contains a magnetic strip and the stip is so sensitive that it is enough to have the card next to a credit card to destroy it. So magnetic strips sucks because they are very sensitive to magnetism of any kind.
laika424 said:
In Gothenburg some of the cards that you use for the public transport system contains a magnetic strip and the stip is so sensitive that it is enough to have the card next to a credit card to destroy it. So magnetic strips sucks because they are very sensitive to magnetism of any kind.
Click to expand...
Click to collapse
the answers in this thread do not all agree with one answer. which mean some people are expressing opinions and not facts.
the level of magnetism required to affect a credit card is quite large and usually only achievable with powerfully electro magnets.
neither the magnets nor the radio in the diamond produce a strong enough field to effect your credit card so you can now sleep worry free knowing your card is not being harmed
The size of a magnet required to wipe/rearrange the electromagnetic field on a MagStrip is only the size of a penny or a 5 pence piece.
You talk of a slot 'designed' for credit cards, does it specifically say 'credit card here' on it? These companies produce enough of these devices to know that a cellular signal/broadcast is more than enough to wipe the information of the ancient MagStrip. The magnetic and sonar equipment used in aircraft is also similarly affected.
Someone also said of how most places use 'Chip & PIN' now. Although this is true, the chip only stores PIN information and a majority of retailers pinpads have magnetic readers to read the account details.
Maybe now, you'll think about how you play around with magnets.
Not sure..
About the diamond, but I can say for relative certainty that my X7501 will kill a hotel room key in seconds flat, the magstripe kind that is... (works really well when you get your phone near that one annoying jerk holding you up at the front desk while yelling about the soap placement in the shower...)...
-Will
7501 Advantage - death by my saturn...
excalibur - death by my saturn...
*ordered* Diamond - will never be plugged in to my saturn.....
hooty said:
About the diamond, but I can say for relative certainty that my X7501 will kill a hotel room key in seconds flat, the magstripe kind that is... (works really well when you get your phone near that one annoying jerk holding you up at the front desk while yelling about the soap placement in the shower...)...
-Will
Click to expand...
Click to collapse
i cant speak for one particular hotel room key but in general it takes over 3000 Gauss magnetic field to affect a modern credit card just by exposure and about 1400 gauss magnet if you repeatedly swipe the card accross the field.
you can buy neodymium magnets this powerfull and they are actually rather small for the strength they posses, but the field generated by these are far in excess of anything produced by the diamond.
After reading the thread I'm as confused as ever
Can a small magnet(about a pinhead in diameter) and a GSM phone destroy the magnetic strip of a credit card?
its really simple. for a more specific and rock answer
1) google for a result about cell phones + credit cards
or
2) dont do it again and save yourself some hassle
or
3) do a test and repeat it again and find out for yourself
Has anybody thought of trying to mod the battery cover for access to the micro sd slot? I really hate taking the cover off and would love to be able to eject my micro SD card without having to take the battery cover off. I want to do this because of reported potential cracks that could develop in the plastic frame. I'm thinking cutting a little slot into the edge of the cover where the micro SD is covered.
Has anybody attempted this? Does the thickness of the metal cover give enough clearance to eject the card?
You have enough clearance with the width of the battery cover, but you'll need a very long fingernail or carry around a flat plastic/metal strip to be able to reach the SD card.
Another problem would be that pretty soon your SD card slot will be full of dust/pocket lint
I picked up this color changing USB hub from Radio Shack for $5 and it has a storage area that fits an HD2 perfectly.
I can't post a link so just google "Radio shack color changing 4 port hub" and you'll find it.
After looking at the nice fit I thought it would be easy to put a usb cable in the bottom of the compartment, so I could use it as a docking/charging station.
It's only held together by one screw in the storage compartment and then a couple pieces of double stick tape, so it was easy to open up. After taking it apart I held the phone next to it and marked where the USB port on the phone was using the dry marker that came with it. It had to be placed in the front corner of the storage compartment because of the circuit board directly underneath that storage compartment.
After marking it out I used a dremel rotary tool to put a hole in it, but I think a drill bit would have worked just as well. Then I put the USB jack in the hole so that it stood about a half inch off the bottom of the storage compartment. I took a sharp knife and trimmed those ring like pieces of plastic on the back of the usb jack off so that it was possible to put a 90 degree bend in the cable to fit it in the hub. Then I also put a small hole in the back edge and ran the cable out and plugged it into the hub.
It fits well with the stock rubber cover on the phone, or no cover on your phone, but I don't think it would fit very well if your case was much bigger than the stock case.
The dry marker that comes with the hub doesn't fit in the hole any longer, and you can't reach the buttons on your phone, but the button problem could be fixed by having the jack stand 1" off the bottom instead of the 1/2" I used.
Great job!!
Cool! Could you please measure the opening dimensions? I'm wondering if my HD2 in Otterbox Defender might fit inside?
Nice, if only we could get them in Australia.
Thx outstanding mod/hack. On my way to rat shack today thanks to your brilliant idea
Sent from tin can with string.
I did not see a thread for this case, so I figured I would start one. You can view the case here:
http://www.amazon.com/rooCASE-Executive-Portfolio-Landscape-Portrait/dp/B004Z21IDW
I just got it for my Streak, and I am very impressed. The cover for the Streak itself fits well, with all the holes in the proper places (unlike the official T-Mobile leather case). The back has two good sized velcro pads which allow you to secure the Streak to the following part of the case for transport and when using the built in stand. The stand is magnetic, so it stays attached to the portfolio when not in use.
I have only had a day to test this case so far, but I have to say I really like it.
Sent from my Dell Streak 7 using Tapatalk
I got the other rooCASE, not the Executive, from company through Amazon for about $22 plus about $7 shipping (still a lot less than Walmart.com. I really like it and went with it over the executive because it looks like the Exec model has the front cover extending out in front of the DS7 when you're using it. In contrast, the regular zoocase has the unit sitting on the front of the case, and the velcrow allows for variable angles. Much better than no case at all, not only for the protection of the DS&, but also because it frees up both hands most of the time, balances nicely on the table, sofa arm, pillow, etc. Never use DS7 in portrait position, so I don't miss that option which the Exec model does give you.
(rooCASE-Multi-Angle-Leather-Streak-Tablet - on Amazon)
Bought this case a few weeks ago. The Roocase Executive Leather Case is ABSOLUTELY worth the price on Amazon, for me $37 shipped! The case not only is a leather book style case, but it also has dual HEAVY DUTY zippers to seal the case, which by the way, is EXTREMELY durable, well-made, and cushioned. Inside the case, on the left sleeve, there are 2 slip pockets for paperwork, small wireless keyboard or battery extender maybe(try it!)? On the right a separate, slimmer case that fits "flush" on the DS7(I found this to have a little play inside the case, but nothing the foam it was packed with couldn't fix).
BIGGEST FEATURE! This case has both a kickstand for the tablet and velcro on the slim case to allow for both Landscape and Portrait views!
I imagine that with a good 10000mah or Solar battery charger and a slim bluetooth keyboard, this case will become wholly convertible and versatile for any mobile needs!!
I think this is the same case but in imitation leather for $23 shipping from China. I have the acase now which isn't bad, but I think the fit on this might be a touch better and the material less padded for a slimmer overall design.
Might just stick with the acase ones because the Viewsonic 7x is looking pretty sweet. Just wish it'd have a full size SD. There's no adapter to go from micro to full size.
dbpaddler said:
I think this is the same case but in imitation leather for $23 shipping from China. I have the acase now which isn't bad, but I think the fit on this might be a touch better and the material less padded for a slimmer overall design.
Might just stick with the acase ones because the Viewsonic 7x is looking pretty sweet. Just wish it'd have a full size SD. There's no adapter to go from micro to full size.
Click to expand...
Click to collapse
I'm currently using a MicroSD with an adaptor that makes it a full sized SD. They're pretty common in card readers, but not so much to purchase by themselves.
The point behind it is SD cards are still the standard in computers, cameras and such. And these aren't tiny phones and mp3 players. A full sized card slot can take a full size card and micro with adapater. A microSD slot is useless for full size. And with many having a plethora of full size cards (I have a 32gb, (3)16gb and a few 8gb ones), they become useless to share photos from the camera on the nice 7" screen, do some uploading to flickr, fb or sugarsync. There is plenty of room to put full size on these devices so I just don't understand why they do it.
I think all these tabs should have standard: microUSB, USB2.0, Full size SD and mini HDMI. Unless you're going for GT10.2 thin, it shouldn't be difficult. At least with usb2.0 you can plug in a card reader. That's somewhat of a compromise without needing a proprietary dongle.
Z4nd4r said:
I'm currently using a MicroSD with an adaptor that makes it a full sized SD. They're pretty common in card readers, but not so much to purchase by themselves.
Click to expand...
Click to collapse
dbpaddler said:
The point behind it is SD cards are still the standard in computers, cameras and such. And these aren't tiny phones and mp3 players. A full sized card slot can take a full size card and micro with adapater. A microSD slot is useless for full size. And with many having a plethora of full size cards (I have a 32gb, (3)16gb and a few 8gb ones), they become useless to share photos from the camera on the nice 7" screen, do some uploading to flickr, fb or sugarsync. There is plenty of room to put full size on these devices so I just don't understand why they do it.
I think all these tabs should have standard: microUSB, USB2.0, Full size SD and mini HDMI. Unless you're going for GT10.2 thin, it shouldn't be difficult. At least with usb2.0 you can plug in a card reader. That's somewhat of a compromise without needing a proprietary dongle.
Click to expand...
Click to collapse
I totally agree (one of the reasons I got the S7); I was just responding to you saying, "There's no adapter to go from micro to full size."
Leave it to me to pontificate when I just skim over a response on my phone
Z4nd4r said:
I totally agree (one of the reasons I got the S7); I was just responding to you saying, "There's no adapter to go from micro to full size."
Click to expand...
Click to collapse
So I have now had the case for about a month, and I still really like it. The case works great both for protecting the Streak and acting as a stand. Only real issue I have had is the velcro pads on the case which goes around the Streak itself tend to pick up all sorts of odd stuff, but that is truly a minor complaint.
Honestly, I have yet to find a better case for the money I paid.
Sent from my Dell Streak 7 using Tapatalk
Hi!
First, I'm sorry for English, I'm not professional.
A few days ago I made a working wireless charger for Motorola Droid 4.
What are the benefits?
People says, the original inductive charging cover is not compatible with most of cases.
Who live away from USA, can't use a wireless charger, becouse it is only available (officially) in the US. It is very hard to find on eBay or any other site. Almost impossible.
Very cheap. The original charging cover at US, Verzion is $29.99. (+ shipping, and need a person who ship it to me) It is only a cover, and we still need a charger as well.
So, I found a charging pad with and without receivers. There was a small problem. The receivers are only for Samsung Galaxy S3, S4 and Note. Their connectors aren't compatible with Droid 4, but the charging voltage is OK.
We need to take it to compatible with Droid 4. I looking for a long time, which one can I choose. Fortunately I made the right decision.
I bought that: Qi Inductive Wireless Charging Upgrade Kit for Samsung Galaxy S3
Link here
That is only for $30.10 with EU plug. The package include charging pad, usb cable, 1500mAh charger and S3 compatible receiver, and worldwide free shipping.
The size of receiver unit is compatible with free space of phone. We need some cutting but it isn't horrible.
First, I recommend you try, how fits the module in your phone.
Then mark with a felt.
The electrical connector pins are big, (and incompatible) we need to remove it carefully. I used a rework station with hot air (360°C) but you can use a medium sized soldering iron. I think, about 50-60W of power is enough. It took for about 30 secs per pin.
It is important, you need to place the receiver in such a manner, if you remove the back cover, the S3 and some other text need to be visible! Otherwise it will not work!
You see backside of the phone, and the camera is on top. Removed cover. In the right side, you can see four copper pins. The top row is irrelevant. We need tha bottom row. In the bottom row, on the left tere is the +5 V pin. On the right, there is a Ground pin.
We need to make contact between +5V pin of the phone and the +5V charging pin of the receiver unit.
Place the receiver unit to the phone, and see what size of copper wire you need. The lower pin of receiver unit is the +5V. We need to connect it.
I used a wire,1 mm in diameter. It is lacquered, I cycled down it from an electrical part (coil).
I think, that half millimeter in diameter is enough, but a found that, and it is recommended due to the relative high current (about 1A).
When you use thinner wire, you can easier take the cover to the phone.
So you need to solder wire to receiver's +5V pin. Please use the minimum quantity of soldering wire, becouse if you make a big knot there, you will have not enough place to take cover back.
When it is done, you can see how can you bend (or cut) the wire for best connectivity with phone's 5V pin.
Now you need to solder a wire to ground, like the previovus one, but not sure, that the two wore have enough space, and we can make easily short corcuit.
For this reason, we will use the iron cover of the SD card slot. This is a very good ground point.
So, one cable will go down, other is go up. They can fit and the soldering is more easy.
PLEASE BE CAREFUL! I recommend, before you make any electrical or hot operating you need to put an aluminium foil or an iron plate to top of the battery. I think to taking out battery and then in, is not easily possible, becouse after soldering there are the receiver. The battery can damage and explosive! The plastic parts of pohone can tolerate the heat for sort time! If you can not solder succesfuly, you need to wait while the parts cooling down! I recommend, use flux and/or high quality of soldering tin. Take out the SD Card! Please don't make short circuit!
It is not too difficult, but you need to be careful and attentive.
When the soldering done, you can try the charger.
Before you can take cover to phone, you need to cut the lower center of receiver. (you can see on the cover, exactly where. There are a claw and on the phone there ara a hole) Important! We need all of holes on phone, so the wires must not hang in to holes.
I cut the piece of receiver unit from lower left side, at the speaker.
Thats all. We are done. I think it longer to read than make :cyclops:
I made some pictures, I will mark these and upload in short time.
I'm going to measure the charging time with:
1,5A USB charger (direct cable)
1,5A USB charger with wireless charging pad
1,5A USB charger with wireless charging pad (phone in a 1 mm thickness of Trident case)
0,5A standard laptop USB (direct cable)
0,5A standard laptop USB with wireless charging pad
0,5A standard laptop USB with wireless charging pad (phone in a 1 mm thickness of Trident case)
I use that from 3 days ago. It works correctly. By the factory, the charging current is 1000mA with the 1,5A charger. About 66% of efficiency.
The USB charger's stand by consumption is 0,4W.
When the charging pad is connected and it is in stand by mode, the consumption is 0,98W
I'm going to bring images, and refresh the post, but here (Hungary, GMT +1) the time is am 2:31.
Good luck guys!
---------------------------------
Uploaded images,
here are the original, better quality images. (11.5MB zip)
That great way to charge the phone. i know that my usb plugin is getting a little wore out.......glad to know that there another way to charge up the phone in case of emergency. Congrats.
Hi,
thanks, it works for me
My IQ receiver was a bit higher, or the battery, so I had troubles to fit it in. My solution was to cut every superfluous piece and pull the uper layer of slide away. Additionally, I put it a bit nearer to the camera, The last thing was to horizontally cut the gold contacts and solder the wire directly on them.
During charging, the usb charger+pad+droid 4 use 7W, without the droid 4 the pad+charger draw 0,4W, both measured at the primary side ot the charger.
Best regards,
mifritscher
Thanks for the info, looks promising I love your using Micro SD casing as GND
BTW the pad + receiver can be found at eBay for as low as US $12 Gonna try out for myself soon.
Did you get to measure the charge times?
LuH said:
Thanks for the info, looks promising I love your using Micro SD casing as GND
BTW the pad + receiver can be found at eBay for as low as US $12 Gonna try out for myself soon.
Did you get to measure the charge times?
Click to expand...
Click to collapse
Charging times are about equivalent
Different approach, same result
Hi, thanx 4 the great idea.
I took a different approach to install the charging pad. I felt not comfortable to solder directly to the phone, so I used copper-tape, capton-tape and some short wires I took from old headphones to mod the pad directly into the back cover of my phone. it got a little bit bumpier (half a mm), but it charges perfectly.
I applied some solder to the ends which connect to the pins, so the copper wont oxidize and the connection has more pressure.
The pictures in better quality:
View attachment goodquality.zip
zuloo.de said:
Hi, thanx 4 the great idea.
I took a different approach to install the charging pad. I felt not comfortable to solder directly to the phone, so I used copper-tape, capton-tape and some short wires I took from old headphones to mod the pad directly into the back cover of my phone. it got a little bit bumpier (half a mm), but it charges perfectly.
I applied some solder to the ends which connect to the pins, so the copper wont oxidize and the connection has more pressure.
View attachment 2842634
View attachment 2842635
View attachment 2842636
The pictures in better quality:
View attachment 2842637
Click to expand...
Click to collapse
That's a nice solution, and pretty much how the "real thing" was probably set up. I noticed that the back has an internal indentation where the pins are to accommodate the connector, and I had experimented with how I might fit a charging pad in there (actually, it was the connectors that I saw as the biggest challenge), but didn't manage to get anything that I thought was robust enough (I was using cut down parts of a SIM card for the pins to make contact with - you look to have done a better job with the copper tape.
I'm really surprised that we can't buy a new back with all of this gubbins already installed - perhaps you should manufacture a few?
mugen 3800mAh inductive charging cover required!!!
i'm tempted to try this myself. the droid4 keeps getting better.
i just experimented with cardboard, seems to have plenty of room between the cover and the battery. i definitely need inductive charging.
Update 2016
@zuloo.de
Hi! I copied your method for wireless charging but I was too lazy for soldering. That is why I used only copper tape. I ordered under 5$ charging pad and receiver for Galaxy S3 (cheap from China) and it is working good. My receiver says that it can output only 0.8A so I guess it is little bit slow. Can you tell your feelings about the heat? I think that my Droid 4 is pretty hot but I never used wireless charging on other phones so I don't know if it is normal. But thanks anyway posting your method :good:
Here is pictures. I tried to take picture about the bump. It is not bad but you can feel it.