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  • Apple to Switch from Using TLC NAND Flash to MLC in iPhone 6 and 6 Plus Devices


    It has been reported by BusinessKorea that Apple will be replacing its triple-level cell (TLC) NAND flash to multi-level cell (MLC) flash on their iPhone 6 and 6 Plus devices. Apparently many iPhone 6 Plus and some iPhone 6 users with large application libraries reported crashing and boot loop issues weeks ago. The most affected model seems to be the largest 128GB iPhone 6 Plus. Other users of the 64GB iPhone 6 model have also reported the same problems.

    The triple-level cell NAND flash memory was built by a company Apple acquired back in 2011 called Anobit. Anobit is supposedly to blame for the manufacturing defects. Although TLC NAND flash is supposed to hold more data, it is actually slower than other NAND flash technologies. Because of the reported problems, the Cupertino-based company is said to switch over to multi-level cell NAND flash on 64GB and 128GB iPhone 6 and 6 Plus models, respectively. According to BusinessKorea:

    TLC NAND flash is a type of solid-state NAND flash memory that stores three bits of data per cell. It can store three times as much data as single-level cell (SLC) that stores one bit of data, and 1.5 times as much as multi-level cell (MLC) solid-state flash memory that stores two bits of data. On top of that, TLC flash is more affordable. However, it is also slower than SLC or MLC in reading and writing data.
    The report also noted that Apple will be releasing iOS 8.1.1 to address the crashing and boot loop issues. iOS 8.1.1 beta was already released to developers this week, so hang tight. We will keep you up to date when more information gets released. In the meantime, try making a trip to the Apple Retail stores to get your device checked out if you are experiencing the same problem.

    Source: BusinessKorea
    This article was originally published in forum thread: Apple to Switch from Using TLC NAND Flash to MLC in iPhone 6 and 6 Plus Devices started by Akshay Masand View original post
    Comments 25 Comments
    1. bigboyz's Avatar
      bigboyz -
      Wow! Guess this was really a big issue. Well, Apple is answering with a fix good stuff.
    1. Yzord's Avatar
      Yzord -
      What about excisting phones? Do i need to replace mine now or will there be a action which comes from Apple itself?
    1. Rondon360's Avatar
      Rondon360 -
      8.1.1 will fix all problems but if your jail broken then you have to chose between upgrading or losing JB.
    1. Sage I's Avatar
      Sage I -
      Quote Originally Posted by Rondon360 View Post
      8.1.1 will fix all problems but if your jail broken then you have to chose between upgrading or losing JB.
      Hahahaha... Which to choose?

      I have no issues with my 128 6+. I also am only using about 25 gigs so far... Maybe I'll fill it to the brim with music and videos and find out...
    1. edwilk55's Avatar
      edwilk55 -
      Hope the software fix works rather than having to go with the slower NAND.
    1. JazJon's Avatar
      JazJon -
      I just ordered my iPhone 6 plus from AT&T last week. It's not due to ship until the 2nd week of December. I wonder if I'll get the new MLC version by then?
    1. Yzord's Avatar
      Yzord -
      Quote Originally Posted by Rondon360 View Post
      8.1.1 will fix all problems but if your jail broken then you have to chose between upgrading or losing JB.
      Ah well, I have no problems now and everything is running smoothly on my 6+128gb, but it could be a problem in the future if I read it right?
    1. Silvio6's Avatar
      Silvio6 -
      Which memory does ipad air2 have ? Same as iphone6 ?
    1. kyphur's Avatar
      kyphur -
      Quote Originally Posted by edwilk55 View Post
      Hope the software fix works rather than having to go with the slower NAND.
      The problem NAND is the slower NAND.
    1. Baileyw813's Avatar
      Baileyw813 -
      Quote Originally Posted by edwilk55 View Post
      Hope the software fix works rather than having to go with the slower NAND.
      The TLC is slower than MLC, TLC stores more data and it's cheaper, so the newly made iPhone will technically be quicker...
    1. CZroe's Avatar
      CZroe -
      Quote Originally Posted by edwilk55 View Post
      Hope the software fix works rather than having to go with the slower NAND.
      The defective type, TLC, is the slower type. The replacement NAND is faster.
    1. Baileyw813's Avatar
      Baileyw813 -
      Quote Originally Posted by CZroe View Post
      The defective type, TLC, is the slower type. The replacement NAND is faster.
      TLC and MLC are both NAND technology. MLC has less storage capacity but is faster than TLC.
    1. WHUDS's Avatar
      WHUDS -
      Sucks I love the JB and I have a 128gb Iphone, seems like I may try to live with 8.1 till the Jb is ready for 8.1.1. Only used 11 gb so far 😇
    1. LeslieBee's Avatar
      LeslieBee -
      So much for Apple always using only good quality hardware.

      TLC has half the lifespan of MLC, and it's slower which is why it's cheaper. This is irrefutable proof that Apple cut corners to put extra bucks in their pockets.

      Steve Jobs must be rolling over in his grave.

      IMO, Tim Cook should lose his job over this.
    1. politicalslug's Avatar
      politicalslug -
      Quote Originally Posted by LeslieBee View Post
      So much for Apple always using only good quality hardware.

      TLC has half the lifespan of MLC, and it's slower which is why it's cheaper. This is irrefutable proof that Apple cut corners to put extra bucks in their pockets.

      Steve Jobs must be rolling over in his grave.

      IMO, Tim Cook should lose his job over this.
      He's responsible for record profits and yet you think he should be fired for this? Not a shareholder, are you? Thank god you're not in charge of these things.
    1. LeslieBee's Avatar
      LeslieBee -
      Quote Originally Posted by politicalslug View Post
      He's responsible for record profits and yet you think he should be fired for this? Not a shareholder, are you? Thank god you're not in charge of these things.
      Oh, how silly of me. You're right. Profit is all that matters. Screw the people for every dime you can. Screw the environment. Screw the whole country if that's what it takes. It's the American way, right?

      Scrooge was a capitalist hero. Marley was lucky to have any job at all. Are there no prisons? If the poor would rather die, let them do so, and decrease the surplus population. Profits! Profits!! Profits!!!


      Apparently Tim Cook really does know all about screwing his fellow man. Hahahahaha
    1. SpiderManAPV's Avatar
      SpiderManAPV -
      Quote Originally Posted by LeslieBee View Post
      Oh, how silly of me. You're right. Profit is all that matters
      Realize that the people who decide the CEO (board of directors) are only there for the profits. The only time people with more disposable income than the GDP of small countries care about the consumer is when they're afraid it'll hurt the profits. I'm not saying this is how it should be, just how it is. This is every company with the exception of a very few.
    1. LeslieBee's Avatar
      LeslieBee -
      Quote Originally Posted by SpidermanAPV View Post
      Realize that the people who decide the CEO (board of directors) are only there for the profits.
      The reason countless Apple fans line up to buy the latest Apple products is because the believe Apple is different. Show them Apple isn't different, and watch as those fans turn into haters. Only this time around Steve Jobs won't be there to jump in and save the day.

      I suppose Mr. Cook could always tell them to eat cake.
    1. SpiderManAPV's Avatar
      SpiderManAPV -
      I buy apple products because I like them better. I can't speak for others of course, but I simply prefer apple. What I think is a more realistic solution is to give a $100 iTunes credit to those affected. Maybe take it out of Cook's year end bonus. Realistic? Maybe not, but it'd sure look good.

      Edit: typo
    1. LeslieBee's Avatar
      LeslieBee -
      Quote Originally Posted by SpidermanAPV View Post
      I buy apple products because I like them better. I can't speak for others of course, but I simply prefer apple. What I think is a more realistic solution is to give a $100 iTunes credit to those affected. Maybe take it out of Cook's year end bonus. Realistic? Maybe not, but it'd sure look good.
      I agree completely.

      BTW, a close friend of mine has an iPhone 6 Plus 128 that crashes several times a day. She doesn't have gobs of music or apps or anything special on her phone. Just some pictures and videos. She is an avid Apple fan who convinced many of her friends to buy Apple. But now she's mad as hell. The only thing thing that will make her happy is a replacement phone without TLC memory. She views an iOS patch as whitewash, which is making her even angrier.