TLC a issue iPhone 6 & 6+

[MarcusCarpenter]

"MLC NAND was used in the 16GB version of the new iPhone 6 devices, as well as some of the 64GB models," - Cultofmac

Is there anyway to know if your iPhone 64GB has the MLC or the TLC

 

[Shadowbech]

One way to find out is by adding a lot of apps and see if it crashes and put you on the bootloop. Otherwise, you may need to open the phone.