How to tell if you have MLC or TLC flash iPhone 6/6 Plus

[Populus]

I look for a MLC NAND because I intend to keep my future iPhone for at least 3 or 4 years.

It is a 6S, 32GB, and the reading speed is pretty low, 32MB/s, like the new iPhone 7 of 32GB capacity.
The reads are around 600MB/s

Thanks for your response, but I was looking for some tool to tell me the layers (TLC or MLC) and the maker of the memory.

 

[thadoggfather]

I look for a MLC NAND because I intend to keep my future iPhone for at least 3 or 4 years.

It is a 6S, 32GB, and the reading speed is pretty low, 32MB/s, like the new iPhone 7 of 32GB capacity.
The reads are around 600MB/s

Thanks for your response, but I was looking for some tool to tell me the layers (TLC or MLC) and the maker of the memory.

you have MLC, most certainly. afaik all 16 and 32 are MLC, but those write speeds are the tipoff.

but 3-4 years, even at least, you will be fine durability wise with TLC. I don't think you'd have to worry about it even over the span of a decade, for one they are durable enough, TLC is being used in business grade flash arrays now with some interesting workaround tech to accommodate for it, (not saying iPhone is a flash array but)

I would imagine other things will go, and repeatedly, before the flash gives up like battery.

also its not like you're hitting it with its full write endurance every day, no matter what you are doing, unless you were running SQL database with it as the target , then maybe haha

 

[Populus]

you have MLC, most certainly. afaik all 16 and 32 are MLC, but those write speeds are the tipoff.

but 3-4 years, even at least, you will be fine durability wise with TLC. I don't think you'd have to worry about it even over the span of a decade, for one they are durable enough, TLC is being used in business grade flash arrays now with some interesting workaround tech to accommodate for it, (not saying iPhone is a flash array but)

I would imagine other things will go, and repeatedly, before the flash gives up like battery.

also its not like you're hitting it with its full write endurance every day, no matter what you are doing, unless you were running SQL database with it as the target , then maybe haha

Thank you man. You're pretty kind, sharing those thoughts with me, I will be more confident with my new device after reading your words.

I've posted here also to let people know that the flash memory chips have changed since Apple slashed all 16GB models and made 32GB the base storage. Maybe they are lower quality chips? I've heard that Apple is strongly trying to cut costs, so lower quality NANDs would make sense. I don't know about the durability of this new chips, but at least they have a much lower write speed, in iPhone 6S and iPhone 7. Something I'm not worried too much about.

In the other hand, in a couple of weeks I'll be buying an iPhone SE, 64GB this time, and I'll share the write/read speeds as well. I hope that reduction in price of the 64GB model doesn't mean a lower quality NAND memory.

In the meantime, if anyone comes up with a more direct way to find out the technology of the flash memory (cheaper TLC or the more durable MLC), please let me know in this thread.

 

[mfldmike]

Just thought I'd share my 7 Plus results....

 

[thadoggfather]

Thank you man. You're pretty kind, sharing those thoughts with me, I will be more confident with my new device after reading your words.

I've posted here also to let people know that the flash memory chips have changed since Apple slashed all 16GB models and made 32GB the base storage. Maybe they are lower quality chips? I've heard that Apple is strongly trying to cut costs, so lower quality NANDs would make sense. I don't know about the durability of this new chips, but at least they have a much lower write speed, in iPhone 6S and iPhone 7. Something I'm not worried too much about.

In the other hand, in a couple of weeks I'll be buying an iPhone SE, 64GB this time, and I'll share the write/read speeds as well. I hope that reduction in price of the 64GB model doesn't mean a lower quality NAND memory.

In the meantime, if anyone comes up with a more direct way to find out the technology of the flash memory (cheaper TLC or the more durable MLC), please let me know in this thread.

it can be done by running a command in mobile terminal using a jailbroken device and reading off a line item, otherwise benchmarks indicate which one it is, TLC or MLC.

afaik, 16 and 32 are same grade, both MLC. multiple manufacturers, like TLC. to not be reliant on any one source.
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you have TLC