Will iPhone enter the 2TB era? Apple was revealed to abandon TLC and use QLC, and performance and lifespan became the focus

July 25 news, according to the latest foreign media reports, Apple is brewing a major technology upgrade and plans to introduce an unprecedented 2TB storage capacity in the 2026 iPhone series. This move will undoubtedly completely rewrite the standards of smartphone storage capacity. . Behind this change, Apple is accelerating the upgrading of QLC
NAND flash memory technology, aiming to further enhance product competitiveness through technological innovation. According to insiders in the industry chain, Apple chose QLC NAND flash memory as the key to future storage solutions, mainly due to cost control considerations. Compared with the currently widely used TLC NAND flash memory, QLC
NAND has achieved significant improvements in storage density with its unique four-layer cell design. Each storage unit can store four bits of data, which means that in the same physical space, QLC
NAND can store more data, or achieve the same storage capacity by reducing the number of units, thereby effectively reducing production costs.

1. Although QLC NAND flash memory has advantages in storage density, it faces certain challenges in terms of write endurance and speed.

2. Since each unit needs to store more data, its number of writes increases accordingly, which may lead to reduced data durability.
3. In addition, QLC NAND can store 16 different charge levels, which is more complex than TLC’s 8 levels, which to a certain extent increases the risk of noise interference and bit errors during the reading process.
4. It is understood that Apple has begun to solve these potential problems while advancing QLC NAND technology.
5. By optimizing firmware algorithms and enhancing error correction mechanisms, Apple strives to improve the reliability and durability of QLC NAND while ensuring storage performance.
6. Nevertheless, with the introduction of QLC NAND, some users may still experience changes in data writing speeds, especially in the iPhone 16 series with storage capacities reaching or exceeding 1TB, this phenomenon may be more obvious.
7. Apple’s major adjustments to storage technology not only reflect its unremitting pursuit of technological innovation, but also indicate that the smartphone market is about to usher in a revolution in storage capacity. -->

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