How to Upgrade 16GB iPhone to 128GB through Replacing Hard Disk?

Please note that the readers except skilled mobile phone technicians are not suggested to use this method.

After ugrading 16GB iPhone to iOS9 or above, you will find 16GB storage space is not enough for daily use. Actually it’s not a good way to delete apps or clear photos/music to solve this issue. And it’s a pity that you leave the 16GB iPhone alone after purchasing another 64GB or 128GB one. Next we’ll show you how to upgrade 16GB iPhone to 128GB through replacing a hard disk.  

16GB iPhone 6 Plus.



1. Disassemble iPhone.

How to Upgrade 16GB iPhone to 128GB through Replacing Hard Disk?

2. Disassemble all screws. Take out the iPhone’s mainboard. Then take a photo of all components.

How to Upgrade 16GB iPhone to 128GB through Replacing Hard Disk?

3. Front side of mainboard

How to Upgrade 16GB iPhone to 128GB through Replacing Hard Disk?

Back side of mainboard


How to Upgrade 16GB iPhone to 128GB through Replacing Hard Disk?
How to Upgrade 16GB iPhone to 128GB through Replacing Hard Disk?


4. iPhone 6 plus has a thinner mainboard than iPhone 5s. The black chip in the middle of the mainboard’s back side is called flash memory chip (hard disk as follows).

How to Upgrade 16GB iPhone to 128GB through Replacing Hard Disk?

5. This iPhone uses SKhynix hard disk. Let’s make a comparison between old 16GB hard disk and new 128GB hard disk.


How to Upgrade 16GB iPhone to 128GB through Replacing Hard Disk?
How to Upgrade 16GB iPhone to 128GB through Replacing Hard Disk?


6. The hard disks of Apple iPhone 6/6 Plus are supplied by SKhynix, Sandisk, Toshiba and etc. In order to expand iPhone’s storage space, you need to use a new hard disk to replace the old one.

Herein, someone would like to ask why it’s possible to replace one hard disk while the hard disk, baseband, chip and fingerprint are closely connected. Of course you need to replace a set of chips through the traditional method. But now you can replace a simple hard disk with the help of a novel box which is able to read/write hard disk’s

Apple will allow the iPhone’s activation if hard disk’s  iPhone fingerprint and CPU match completely. Each hard disk has a unique serial number, so you only need to write the  of the old 16GB hard disk into the new 128GB hard disk.

This is the  box which can read/write iPhone hard disk’s
7. The works line is also required.



8. Put the new 128GB hard disk into the box.  

How to Upgrade 16GB iPhone to 128GB through Replacing Hard Disk?
How to Upgrade 16GB iPhone to 128GB through Replacing Hard Disk?
How to Upgrade 16GB iPhone to 128GB through Replacing Hard Disk?

9. Electrify box.


10. Open the read/write software platform. 

How to Upgrade 16GB iPhone to 128GB through Replacing Hard Disk?

11. Write the (Settings→General→About→) of 16GB hard disk into the new 128GB hard disk. Herein, the whole process of upgrading iPhone’s storage space is half complete.  

Implant tin onto the new 128GB hard disk. Then put it aside after this step completed.
12. iPhone’s mainboard.

How to Upgrade 16GB iPhone to 128GB through Replacing Hard Disk?
13. Use the hot wind to help remove the original glue around the 16GB hard disk.

How to Upgrade 16GB iPhone to 128GB through Replacing Hard Disk?
How to Upgrade 16GB iPhone to 128GB through Replacing Hard Disk?
How to Upgrade 16GB iPhone to 128GB through Replacing Hard Disk?
How to Upgrade 16GB iPhone to 128GB through Replacing Hard Disk?

14. After removing the glue, please keep using hot wind to heat the 16GB hard disk...

How to Upgrade 16GB iPhone to 128GB through Replacing Hard Disk?
How to Upgrade 16GB iPhone to 128GB through Replacing Hard Disk?
How to Upgrade 16GB iPhone to 128GB through Replacing Hard Disk?
How to Upgrade 16GB iPhone to 128GB through Replacing Hard Disk?

15. When the time is up, please pry off the 16GB hard disk.

How to Upgrade 16GB iPhone to 128GB through Replacing Hard Disk?
How to Upgrade 16GB iPhone to 128GB through Replacing Hard Disk?

16. After taking out the 16GB hard disk, you need to go on handling the mainboard after it becomes cool. Then Install the 128GB hard disk. Put this new hard disk(implanted with tin) onto the corresponding position. Use hot wind to heat it till it’s soldered steadily.

How to Upgrade 16GB iPhone to 128GB through Replacing Hard Disk?
How to Upgrade 16GB iPhone to 128GB through Replacing Hard Disk?
How to Upgrade 16GB iPhone to 128GB through Replacing Hard Disk?
How to Upgrade 16GB iPhone to 128GB through Replacing Hard Disk?
How to Upgrade 16GB iPhone to 128GB through Replacing Hard Disk?
How to Upgrade 16GB iPhone to 128GB through Replacing Hard Disk?
17. After the hard disk is replaced, you need to use 3uTools or iTunes to flash iPhone in order to activate it normally. (Herein, Flashing in DFU mode is suggested.)

How to Upgrade 16GB iPhone to 128GB through Replacing Hard Disk?
How to Upgrade 16GB iPhone to 128GB through Replacing Hard Disk?
How to Upgrade 16GB iPhone to 128GB through Replacing Hard Disk?
How to Upgrade 16GB iPhone to 128GB through Replacing Hard Disk?
How to Upgrade 16GB iPhone to 128GB through Replacing Hard Disk?
How to Upgrade 16GB iPhone to 128GB through Replacing Hard Disk?

18. Now the whole process of upgrading iPhone’s 16GB storage space to 128GB is completed! Also you can use this method to upgrade the storage space of other iDevices, for example, iPhone 4s, 5, 5c, 6, 6s, 6s plus, iPad...



How to Upgrade 16GB iPhone to 128GB through Replacing Hard Disk?