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View Full Version : Cause of iPad 3 sleep/wake problem with 3rd party cases




Mark Booth
Mar 17, 2012, 06:46 PM
There have been lots of issues with the iPad 3's Smart Cover feature not working with some third-party cases. Maybe the placement or alignment of the little magnet in the cover is the problem with some of those cases, but that's certainly not what I discovered when I investigated with our Maroo Moko II case.

It's the POLARITY of the magnet!

The story and HD video demonstration can be found at my blog:

iPad 3 Smart Cover Sleep/Wake Feature Not Working (http://markshangout.com/blog/2012/3/17/ipad-3-smart-cover-sleepwake-feature-not-working.html)

Mark



glen e
Mar 17, 2012, 06:56 PM
Maroo found that out too..now the questions is why would apple change it and how come the smartcovers work and not other cases?

vabigpoppa
Mar 17, 2012, 07:04 PM
awesome explanation thanks for posting

reebs
Mar 17, 2012, 07:14 PM
Very interesting indeed. Maroo said they have a fix for us and to stay tuned. What else can we do besides cut into the case or add another magnet to it?

OTACORB
Mar 17, 2012, 07:43 PM
Thanks Mark, I appreciate that explanation. I have a Zoogue case that the polarity of the magnet is wrong and it no longer functions. Now I understand why it doesn't work. Zoogue is going to have to fix this on future cases.

glen e
Mar 17, 2012, 07:45 PM
Mount this right side up in cover?

http://www.kjmagnetics.com/proddetail.asp?prod=D201

all of 90 cents!

Dechter
Mar 17, 2012, 09:47 PM
There have been lots of issues with the iPad 3's Smart Cover feature not working with some third-party cases. Maybe the placement or alignment of the little magnet in the cover is the problem with some of those cases, but that's certainly not what I discovered when I investigated with our Maroo Moko II case.

It's the POLARITY of the magnet!

The story and HD video demonstration can be found at my blog:

iPad 3 Smart Cover Sleep/Wake Feature Not Working (http://markshangout.com/blog/2012/3/17/ipad-3-smart-cover-sleepwake-feature-not-working.html)

Mark

Good explanation, Mark. I just verified the same thing with my Sena Florence folio case. It does not trigger the sleep/wake function when the new iPad is inside the case, but if I flip the case over so the polarity of the magnet inside the cover is reversed, the sleep/wake does indeed work.

Now to determine a good easy way to modify my case...

Rgladman
Mar 17, 2012, 10:33 PM
There have been lots of issues with the iPad 3's Smart Cover feature not working with some third-party cases. Maybe the placement or alignment of the little magnet in the cover is the problem with some of those cases, but that's certainly not what I discovered when I investigated with our Maroo Moko II case.

It's the POLARITY of the magnet!

The story and HD video demonstration can be found at my blog:

iPad 3 Smart Cover Sleep/Wake Feature Not Working (http://markshangout.com/blog/2012/3/17/ipad-3-smart-cover-sleepwake-feature-not-working.html)

Mark

I find it interesting that based on the fact that you received 2 new cases from Maroo and one worked and one didn't. That tells me that the case manufactures didn't have to worry about the polarity when they placed the magnet in the case.

I have a Maroo Kumarra case that I purchased in May of 2011 for my iPad 2 that worked great but doesn't work on my new iPad. I can slide the edge of the cover towards the spline and it will work but it won't stay in that position.

I would like to know how Apple made the iPad 2 so polarity didn't matter but now it does.

aceweil
Mar 17, 2012, 11:27 PM
Mount this right side up in cover?

http://www.kjmagnetics.com/proddetail.asp?prod=D201

all of 90 cents!

Plus the 5 dollars they charge in shipping. I think its kind of ridiculous to pay six dollars for a function that should be part of the design. I realize apple didn't give these case designers the heads up, but 90 cents to get that function is cool with me....6 dollars makes me think it falls back on the case designers...but its an option thats for sure.

Mark Booth
Mar 18, 2012, 12:05 AM
I would like to know how Apple made the iPad 2 so polarity didn't matter but now it does.

Obviously, Apple switched to using a different type of magnetically activated sensor for the iPad 3. Speculation: The iPad 2 sensor was possibly of a type that the switching mechanism was simply some form of metal. Either polarity of the magnet would attract the metal and throw the switch. Then, for the iPad 3 Apple used a sensor that has a magnet of its own instead of just metal. That magnet would have polarity and, thus, would require a complimentary polarity from the case cover magnet in order to work properly.

Mark

TC25
Mar 18, 2012, 04:23 AM
Plus the 5 dollars they charge in shipping. I think its kind of ridiculous to pay six dollars for a function that should be part of the design.
Spending $6.00 to get an existing iPad2 case to work is a bargain.

glen e
Mar 18, 2012, 05:06 AM
Spending $6.00 to get an existing iPad2 case to work is a bargain.
X2... Nobody said you have to buy them from that place....you can use up 10 bucks in gas and get them locally, I'll bet...only on macrumors will people complain about 6 bucks....LOL

Stealthipad
Mar 18, 2012, 06:15 AM
If it is a polarity issue, why do the original iPad covers work. If they reversed the polarity, these old original iPad cover would ALSO not work. :rolleyes:

TC25
Mar 18, 2012, 06:19 AM
If it is a polarity issue, why do the original iPad covers work. If they reversed the polarity, these old original iPad cover would ALSO not work. :rolleyes:

Clearly you didn't understand the first post in this thread.:rolleyes:

Stealthipad
Mar 18, 2012, 06:32 AM
Maroo found that out too..now the questions is why would apple change it and how come the smartcovers work and not other cases?

Clearly you didn't understand the first post in this thread.:rolleyes:

Excuse me, after going back and retreading, I see that others do not understand either. Pardon my ignorance. How is my spelling?

TC25
Mar 18, 2012, 06:49 AM
This isn't rocket science.

iPad2 - A simple piece of metal inside the iPad2 interacted with the magnet in the case, i.e., polarity doesn't matter.

New iPad - Apple replaced the simple piece of metal with a magnet, i.e., polarity matters.

If the case you have happened to have the magnet oriented to work correctly with the magnet inside the new iPad, you got lucky. This also explains why even within the same manufacturer and same model case, some work and some do not.

maniac886
Mar 18, 2012, 07:11 AM
I have just purchased a Targus premium click in case and I am very lucky that the sleep/awake function works. However I have 2 other cases that I purchased for the new iPad which do not work due to the reasons mentioned in this thread. It will be very interesting to see how the case manufactures resolve the issue.

TC25
Mar 18, 2012, 07:16 AM
I have just purchased a Targus premium click in case and I am very lucky that the sleep/awake function works. However I have 2 other cases that I purchased for the new iPad which do not work due to the reasons mentioned in this thread. It will be very interesting to see how the case manufactures resolve the issue.

"Resolve the issue"? What's to resolve? It's the luck of the draw as to whether an iPad2 case will work. They have to change their manufacturing process to place the magnets into their cases with the correct polarity.

maniac886
Mar 18, 2012, 07:32 AM
"Resolve the issue"? What's to resolve? It's the luck of the draw as to whether an iPad2 case will work. They have to change their manufacturing process to place the magnets into their cases with the correct polarity.

I was referring to the issue of people who have purchased cases designed solely for the new iPad which don't work.

TC25
Mar 18, 2012, 07:46 AM
I was referring to the issue of people who have purchased cases designed solely for the new iPad which don't work.
If the manufacturer claimed it was compatible with the new iPad, then they don't have a choice, they have to issue a refund or provide a product that works as advertised.

Mark Booth
Mar 18, 2012, 09:35 AM
If it is a polarity issue, why do the original iPad covers work. If they reversed the polarity, these old original iPad cover would ALSO not work. :rolleyes:

The iPad 3 uses a DIFFERENT magnetic sensor switch compared to the iPad 2. The magnetic sensor switch in the iPad 2 is NOT sensitive to polarity. The magnetic sensor switch in the iPad 3 IS sensitive to polarity!

It's that simple and a case manufacturer in the UK has already confirmed this to be true. After I sent him the link to my blog post, he disassembled one of his covers that worked with the iPad 2 but did NOT work with the iPad 3. He reversed the magnet in the cover and tested again. Success! The cover then worked with BOTH the iPad 2 and iPad 3.

Apple simply uses a different type of sensor switch in the iPad 3.

Mark

Stealthipad
Mar 18, 2012, 09:54 AM
If the manufacturer claimed it was compatible with the new iPad, then they don't have a choice, they have to issue a refund or provide a product that works as advertised.

Amazon has already refunded me my $50 on my Targus Slim case and I have not even returned it!

Amazon is the best.

DredPirateStorm
Mar 18, 2012, 10:09 AM
Amazon has already refunded me my $50 on my Targus Slim case and I have not even returned it!

Amazon is the best.

Hopefully OtterBox is just as great with their customer services. I have a feeling I'll be stuck paying return shipping to be a Beta Tester for them...

Rgladman
Mar 18, 2012, 11:02 AM
I have seem many posts asking why the Apple Smart Covers still work on the new iPad.

I remembered seeing a tear down of the smart cover last year and I believe it is related to the number of magnets in the smart cover as compared to third party cases.

http://www.macrumors.com/2011/03/14/ipad-2-smart-cover-teardown-reveals-21-magnets/

TC25
Mar 18, 2012, 11:11 AM
I have seem many posts asking why the Apple Smart Covers still work on the new iPad.

I remembered seeing a tear down of the smart cover last year and I believe it is related to the number of magnets in the smart cover as compared to third party cases.

Wrong. It's polarity, not the number, of the magnets.

Rgladman
Mar 18, 2012, 11:21 AM
Wrong. It's polarity, not the number, of the magnets.

Fully understand it is polarity.

I beleive there are only two possibilities for why there covers are still working.

1. They built all of the smart covers with the polarity of all the magnets facing the same direction and they knew that when they developed the new iPad.

2. The more magnets in the cover the better the odds one is facing the correct direction.

Apple is great at planning every detail but I don't know if they are that good.

Mark Booth
Mar 18, 2012, 11:25 AM
I have seem many posts asking why the Apple Smart Covers still work on the new iPad.

I remembered seeing a tear down of the smart cover last year and I believe it is related to the number of magnets in the smart cover as compared to third party cases.

http://www.macrumors.com/2011/03/14/ipad-2-smart-cover-teardown-reveals-21-magnets/

Only ONE of the magnets in the Apple Smart Cover is the magnet that triggers the sleep/wake function on the iPad. This photo shows that magnet circled.

http://www.thephotobooth.net/photos/i-4hkVc5K/0/XL/i-4hkVc5K-XL.jpg

The above photo is from iFixit's Teardown of the Apple Smart Cover (http://www.ifixit.com/Teardown/iPad-2-Smart-Cover-Teardown/5089/1).

In the photo, you can clearly see the circular magnet for the sleep/wake function and the rectangular magnets that are designed to hold the Smart Cover closed against the iPad. Some of these rectangular magnets are also installed with a specific polarity so that they match up with their twin rectangular magnets embedded in the iPad (shown next to the cover in the photo). The alternating poles of the magnets is what allows the Smart Cover to align perfectly every time it is placed onto the face of the iPad.

Click over to the iFixIt Teardown (http://www.ifixit.com/Teardown/iPad-2-Smart-Cover-Teardown/5089/1) to read/understand how it all works.

Mark

----------

Apple is great at planning every detail but I don't know if they are that good.

Apple IS that good. Their Smart Cover was designed with SPECIFIC polarity orientations. See the iFixit Teardown.

Mark

glen e
Mar 18, 2012, 04:52 PM
Bunping as it should be a sticky for a while

Mark Booth
Mar 18, 2012, 06:55 PM
Participants over on Apple's Support Forums have confirmed that OLDER genuine Apple Smart Covers might also have problems with the sleep/wake on the iPad 3! Late last year, Apple apparently changed the design of their Smart Cover (obviously, to make sure that one little magnet was oriented correctly) and issued new part/model numbers.

So, if anyone has an older Apple Smart Cover and the sleep/wake feature is not working properly with your new iPad (3), the Apple Support Forum members are reporting that Apple is exchanging any older Smart Covers for the newer one. Just visit your local Apple Store.

Mark

jcsantana
Mar 20, 2012, 10:38 PM
Hi i just wanted to post this little fix I came up with, its not very hard and you don't have to cut your case like I've seen in other fixes, you just need:
1. Glue debonder (to soften the glue that holds the top and bottom layers)
2. sharp hobby knife similar to the ones used in surgeries
3. Small magnet to insert.

I just made a hole between the two layers carefully with the debonder and the knife separating both layer until i had enough space to place the magnet where i wanted. The polarity worked no matter what side it was with the iPad but with one of the side when flipped to the back it would also put it to sleep so thats something to consider, after you insert it, the glue will just start "functioning" again when the debonder dries so you don't even need to apply more glue... ill post a couple of pictures.

class77
Mar 20, 2012, 10:57 PM
There have been lots of issues with the iPad 3's Smart Cover feature not working with some third-party cases. Maybe the placement or alignment of the little magnet in the cover is the problem with some of those cases, but that's certainly not what I discovered when I investigated with our Maroo Moko II case.

It's the POLARITY of the magnet!

The story and HD video demonstration can be found at my blog:

iPad 3 Smart Cover Sleep/Wake Feature Not Working (http://markshangout.com/blog/2012/3/17/ipad-3-smart-cover-sleepwake-feature-not-working.html)

MarkNope, this is not always the case. My case worked perfectly with the iPad 2, so it's not a case of the polarity being reversed, it's just a case of all the magnets not aligning

TSloper
Mar 20, 2012, 11:08 PM
Nope, this is not always the case. My case worked perfectly with the iPad 2, so it's not a case of the polarity being reversed, it's just a case of all the magnets not aligning

No... it's a polarity issue. It would be expected that your case works with the iPad 2. The iPad 2 isn't polarity specific. The new iPad is.

class77
Mar 21, 2012, 12:58 AM
No... it's a polarity issue. It would be expected that your case works with the iPad 2. The iPad 2 isn't polarity specific. The new iPad is. You learn something new every day....Seems like Apple just made it hard on case makers by doing that. Was there a reason for Apple to need make it polarity specific? Just curious

rgarjr
Mar 21, 2012, 01:13 AM
You learn something new every day....Seems like Apple just made it hard on case makers by doing that. Was there a reason for Apple to need make it polarity specific? Just curious

I think Mark explained that the reason apple changed the sensor was because... when u flip the smart cover back and put it flat on the back of the iPad, it would at times trigger the sensor and put it to sleep. Polarity triggered resolves this.

Mark Booth
Mar 21, 2012, 02:29 AM
You learn something new every day....Seems like Apple just made it hard on case makers by doing that. Was there a reason for Apple to need make it polarity specific? Just curious

rgarjr explained it correctly.

I've received a lot of emails and comments about my article and video (linked below in my signature). With the iPad 2, people have claimed that they had first-hand experience with opening up a Smart Cover or third-party case cover and swinging it around flat to the back of their iPad 2, only to have the iPad go to sleep. The presence of the magnet on the BACK of the iPad was triggering the sleep/wake function. It happened with the iPad 2 because the sleep/wake sensor in the iPad 2 is not polarity specific. Either end or side of a magnet can trigger the iPad 2's sleep/wake sensor.

That simply must be the reason that Apple chose to go with polarity specific sleep/wake sensor for the new iPad (3). With that type of sensor, if a user swings the cover around to the back of the iPad it will be the incorrect polarity against the back of the iPad and the sensor won't be tripped.

Mark

Mark Booth
Mar 21, 2012, 02:41 AM
BTW, my thanks to everyone for visiting my blog and watching my video. The last few days have been pretty amazing. My blog article has received more than 12,000 views and it's been mentioned and linked in articles at Mashable, CNN, Yahoo, Huffington Post and dozens of others, not to mention being linked at sites in Canada, France, Belgium, Australia, New Zealand and (a few hours ago), the Ukraine!

Fun stuff! :)

Mark

glen e
Mar 23, 2012, 12:09 PM
bumping this as its why all cases will have problems now...

davedvdy
Mar 23, 2012, 12:21 PM
bumping this as its why all cases will have problems now...

Interesting, does that mean that the same cases must have inconsistent polarity issues, some switched?

celly
Mar 23, 2012, 06:02 PM
Interesting, does that mean that the same cases must have inconsistent polarity issues, some switched?

The Beyza Executive II for the iPad 2 works without a hitch on the iPad 3. I was relieved, because I ordered the case before these magnet stories started to materialize.

Mark Booth
Mar 23, 2012, 09:29 PM
The Beyza Executive II for the iPad 2 works without a hitch on the iPad 3. I was relieved, because I ordered the case before these magnet stories started to materialize.

And I hope EVERY Beyza Executive II case works with the iPad 3 and that nobody purchasing that case has any problems.

But just because you aren't having problems doesn't mean someone else might not have a problem with the exact same case. It all depends on whether the little round magnet is positioned with the same (correct) polarity for EVERY case they make.

That's the devil of this whole thing. I purchased two identically constructed cases from the same manufacturer. The only difference was the color. Yet, one works find for sleep/wake and the other doesn't work at all for sleep/wake.

Happily, it appears that the case manufacturers are doing the right thing and replacing cases (that have wrong-way magnets).

Mark

kodeman53
May 6, 2012, 12:26 PM
Hi i just wanted to post this little fix I came up with, its not very hard and you don't have to cut your case like I've seen in other fixes, you just need:
1. Glue debonder (to soften the glue that holds the top and bottom layers)
2. sharp hobby knife similar to the ones used in surgeries
3. Small magnet to insert.

I just made a hole between the two layers carefully with the debonder and the knife separating both layer until i had enough space to place the magnet where i wanted. The polarity worked no matter what side it was with the iPad but with one of the side when flipped to the back it would also put it to sleep so thats something to consider, after you insert it, the glue will just start "functioning" again when the debonder dries so you don't even need to apply more glue... ill post a couple of pictures.

I bought the magnets mentioned earlier in this thread (Click Here (http://www.kjmagnetics.com/proddetail.asp?prod=D201)) and used a seam ripper to open up two stitches on the inside cover on my Incase Leather Portfolio, which did not come with any magnets.

I used the seam ripper to open up a little pocket to hold the magnet, even though the material was glued to the stiffener, the seam ripper did a nice job. I used a toothpick to push the magnet into the pocket then sowed the seam up again. Only the magnet on the right is needed to turn the iPad on and off.

Front
http://i1162.photobucket.com/albums/q531/lidksmy/front.jpg

Back
http://i1162.photobucket.com/albums/q531/lidksmy/back.jpg